{"id":8443,"date":"2026-07-02T15:01:37","date_gmt":"2026-07-02T07:01:37","guid":{"rendered":"https:\/\/www.jodoo.com\/blog\/?p=8443"},"modified":"2026-07-21T17:39:53","modified_gmt":"2026-07-21T09:39:53","slug":"phan-tich-cay-loi-trong-san-xuat","status":"publish","type":"post","link":"https:\/\/www.jodoo.com\/blog\/vi-vn\/fault-tree-analysis-manufacturing","title":{"rendered":"Ph\u00e2n t\u00edch c\u00e2y s\u1ef1 c\u1ed1 (FTA): C\u00e1ch s\u1eed d\u1ee5ng n\u00f3 \u0111\u1ec3 ph\u00e2n t\u00edch nguy\u00ean nh\u00e2n g\u1ed1c v\u00e0 r\u1ee7i ro an to\u00e0n"},"content":{"rendered":"

<\/span>Gi\u1edbi thi\u1ec7u: Ph\u00e2n t\u00edch c\u00e2y l\u1ed7i c\u00f3 \u00fd ngh\u0129a g\u00ec trong s\u1ea3n xu\u1ea5t<\/span><\/h2>\n\n\n\n

M\u1ed9t s\u1ef1 c\u1ed1 nghi\u00eam tr\u1ecdng duy nh\u1ea5t c\u00f3 th\u1ec3 g\u00e2y ra h\u00e0ng gi\u1edd ng\u1eebng ho\u1ea1t \u0111\u1ed9ng, ch\u1eadm giao h\u00e0ng, h\u01b0 h\u1ecfng s\u1ea3n ph\u1ea9m v\u00e0 r\u1ee7i ro an to\u00e0n trong c\u00f9ng m\u1ed9t ca l\u00e0m vi\u1ec7c. Trong c\u1ea3 s\u1ea3n xu\u1ea5t theo quy tr\u00ecnh v\u00e0 s\u1ea3n xu\u1ea5t r\u1eddi r\u1ea1c, th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng ngo\u00e0i k\u1ebf ho\u1ea1ch th\u01b0\u1eddng g\u00e2y thi\u1ec7t h\u1ea1i t\u1eeb h\u00e0ng ngh\u00ecn \u0111\u1ebfn h\u00e0ng tr\u0103m ngh\u00ecn \u0111\u00f4 la m\u1ed7i gi\u1edd. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao Ph\u00e2n t\u00edch c\u00e2y l\u1ed7i (FTA)<\/a><\/strong> \u0110\u00e2y v\u1eabn l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p c\u00f3 gi\u00e1 tr\u1ecb \u0111\u1ed1i v\u1edbi nh\u1eefng nh\u00f3m kh\u00f4ng th\u1ec3 d\u1eebng l\u1ea1i ngay khi b\u1eaft \u0111\u1ea7u t\u00ecm ra nguy\u00ean nh\u00e2n r\u00f5 r\u00e0ng \u0111\u1ea7u ti\u00ean.<\/p>\n\n\n\n

Ph\u00e2n t\u00edch c\u00e2y s\u1ef1 c\u1ed1 l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p suy lu\u1eadn t\u1eeb tr\u00ean xu\u1ed1ng, b\u1eaft \u0111\u1ea7u t\u1eeb m\u1ed9t s\u1ef1 ki\u1ec7n kh\u00f4ng mong mu\u1ed1n, ch\u1eb3ng h\u1ea1n nh\u01b0 ch\u00e1y m\u00e1y m\u00f3c, nhi\u1ec5m b\u1ea9n l\u00f4 h\u00e0ng ho\u1eb7c d\u1eebng d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t, v\u00e0 \u0111i ng\u01b0\u1ee3c l\u1ea1i \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c t\u1ed5 h\u1ee3p l\u1ed7i d\u1eabn \u0111\u1ebfn s\u1ef1 ki\u1ec7n \u0111\u00f3. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y h\u1eefu \u00edch cho c\u00e1c k\u1ef9 s\u01b0 \u0111\u1ed9 tin c\u1eady, c\u00e1c nh\u00e0 qu\u1ea3n l\u00fd ch\u1ea5t l\u01b0\u1ee3ng v\u00e0... EHS<\/strong> \u0110\u1ed1i v\u1edbi c\u00e1c nh\u00e0 l\u00e3nh \u0111\u1ea1o, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch khi v\u1ea5n \u0111\u1ec1 kh\u00f4ng tuy\u1ebfn t\u00ednh v\u00e0 c\u00f3 th\u1ec3 c\u00f3 nhi\u1ec1u nguy\u00ean nh\u00e2n k\u1ef9 thu\u1eadt, con ng\u01b0\u1eddi ho\u1eb7c quy tr\u00ecnh t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau. Thay v\u00ec ch\u1ec9 h\u1ecfi \u0111i\u1ec1u g\u00ec \u0111\u00e3 x\u1ea3y ra, FTA gi\u00fap b\u1ea1n l\u1eadp b\u1ea3n \u0111\u1ed3 c\u00e1ch s\u1ef1 ki\u1ec7n \u0111\u00f3 c\u00f3 th\u1ec3 x\u1ea3y ra.<\/p>\n\n\n\n

Trong h\u01b0\u1edbng d\u1eabn n\u00e0y, b\u1ea1n s\u1ebd t\u00ecm hi\u1ec3u c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ph\u00e2n t\u00edch c\u00e2y s\u1ef1 c\u1ed1, c\u00e1ch x\u00e2y d\u1ef1ng s\u01a1 \u0111\u1ed3 c\u00e2y s\u1ef1 c\u1ed1 v\u00e0 khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng FTA. B\u00e0i vi\u1ebft c\u0169ng xem x\u00e9t c\u00e1ch th\u1ee9c quy tr\u00ecnh l\u00e0m vi\u1ec7c k\u1ef9 thu\u1eadt s\u1ed1 gi\u00fap c\u00e1c nh\u00f3m s\u1ea3n xu\u1ea5t chuy\u1ec3n \u0111\u1ed5i ph\u00e2n t\u00edch nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 v\u00e0 r\u1ee7i ro an to\u00e0n th\u00e0nh h\u00e0nh \u0111\u1ed9ng kh\u1eafc ph\u1ee5c \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh v\u00e0 c\u00f3 th\u1ec3 theo d\u00f5i \u0111\u01b0\u1ee3c, thay v\u00ec ch\u1ec9 l\u00e0 m\u1ed9t b\u00e1o c\u00e1o t\u0129nh kh\u00e1c.<\/p>\n\n\n\n

<\/span>C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ph\u00e2n t\u00edch c\u00e2y l\u1ed7i: Logic t\u1eeb tr\u00ean xu\u1ed1ng, k\u00fd hi\u1ec7u v\u00e0 c\u1ea5u tr\u00fac s\u01a1 \u0111\u1ed3.<\/span><\/h2>\n\n\n\n

<\/span>H\u00e3y b\u1eaft \u0111\u1ea7u v\u1edbi m\u1ed9t s\u1ef1 ki\u1ec7n quan tr\u1ecdng r\u00f5 r\u00e0ng.<\/span><\/h3>\n\n\n\n

Ph\u00e2n t\u00edch c\u00e2y l\u1ed7i<\/a><\/strong> Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y hi\u1ec7u qu\u1ea3 nh\u1ea5t khi b\u1ea1n b\u1eaft \u0111\u1ea7u v\u1edbi m\u1ed9t s\u1ef1 c\u1ed1 c\u1ee5 th\u1ec3, duy nh\u1ea5t c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ho\u1ea1t \u0111\u1ed9ng. Tr\u00ean th\u1ef1c t\u1ebf, s\u1ef1 ki\u1ec7n quan tr\u1ecdng \u0111\u00f3 c\u1ea7n \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a b\u1eb1ng c\u00e1c thu\u1eadt ng\u1eef c\u00f3 th\u1ec3 \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c, ch\u1ee9 kh\u00f4ng ph\u1ea3i b\u1eb1ng ng\u00f4n ng\u1eef m\u01a1 h\u1ed3 nh\u01b0 "s\u1ef1 c\u1ed1 d\u00e2y chuy\u1ec1n" hay "v\u1ea5n \u0111\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng". M\u1ed9t c\u00e1ch di\u1ec5n \u0111\u1ea1t t\u1ed1t h\u01a1n l\u00e0: \u201cD\u00e2y chuy\u1ec1n chi\u1ebft r\u00f3t s\u1ed1 3 \u0111\u00e3 d\u1eebng ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed9t ng\u1ed9t trong 42 ph\u00fat do \u00e1p su\u1ea5t kh\u00ed n\u00e9n th\u1ea5p t\u1ea1i tr\u1ea1m \u0111\u00f3ng n\u1eafp.\u201d<\/strong> M\u1ee9c \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u00f3 gi\u00fap c\u00e2y s\u01a1 \u0111\u1ed3 t\u1eadp trung v\u00e0o v\u1ea5n \u0111\u1ec1 ch\u00ednh v\u00e0 ng\u0103n nh\u00f3m th\u1ef1c hi\u1ec7n vi\u1ec7c tr\u1ed9n l\u1eabn c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 an to\u00e0n, b\u1ea3o tr\u00ec v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng v\u00e0o c\u00f9ng m\u1ed9t s\u01a1 \u0111\u1ed3.<\/p>\n\n\n\n

Trong h\u01b0\u1edbng d\u1eabn n\u00e0y, h\u00e3y s\u1eed d\u1ee5ng s\u1ef1 c\u1ed1 d\u00e2y chuy\u1ec1n \u0111\u00f3ng g\u00f3i l\u00e0m v\u00ed d\u1ee5 minh h\u1ecda. Nh\u00f3m \u0111\u00e3 bi\u1ebft r\u1eb1ng s\u1ef1 c\u1ed1 ng\u1eebng ho\u1ea1t \u0111\u1ed9ng \u0111\u00e3 x\u1ea3y ra, v\u00ec v\u1eady m\u1ee5c \u0111\u00edch c\u1ee7a s\u01a1 \u0111\u1ed3 c\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 m\u00f4 t\u1ea3 s\u1ef1 ki\u1ec7n m\u00e0 l\u00e0 truy t\u00ecm c\u00e1ch nhi\u1ec1u nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p l\u1ea1i \u0111\u1ec3 t\u1ea1o ra n\u00f3. \u0110\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao FTA l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p t\u1eeb tr\u00ean xu\u1ed1ng: b\u1ea1n b\u1eaft \u0111\u1ea7u t\u1eeb k\u1ebft qu\u1ea3 kh\u00f4ng mong mu\u1ed1n v\u00e0 l\u00e0m vi\u1ec7c ng\u01b0\u1ee3c l\u1ea1i th\u00f4ng qua logic.<\/p>\n\n\n\n

<\/span>L\u1eadp s\u01a1 \u0111\u1ed3 c\u00e1c s\u1ef1 ki\u1ec7n t\u1eeb nguy\u00ean nh\u00e2n c\u1ea5p cao \u0111\u1ebfn nguy\u00ean nh\u00e2n c\u01a1 b\u1ea3n.<\/span><\/h3>\n\n\n\n

Sau khi x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c s\u1ef1 ki\u1ec7n ch\u00ednh, b\u01b0\u1edbc ti\u1ebfp theo l\u00e0 ph\u00e2n t\u00edch n\u00f3 th\u00e0nh c\u00e1c \u0111i\u1ec1u ki\u1ec7n tr\u1ef1c ti\u1ebfp c\u00f3 th\u1ec3 g\u00e2y ra n\u00f3. Trong s\u01a1 \u0111\u1ed3 c\u00e2y s\u1ef1 c\u1ed1, s\u1ef1 ki\u1ec7n h\u00e0ng \u0111\u1ea7u<\/strong> \u0110\u00e2y l\u00e0 s\u1ef1 c\u1ed1 cu\u1ed1i c\u00f9ng \u0111ang \u0111\u01b0\u1ee3c \u0111i\u1ec1u tra., s\u1ef1 ki\u1ec7n trung gian<\/strong> \u0111ang g\u00f3p ph\u1ea7n g\u00e2y ra nh\u1eefng th\u1ea5t b\u1ea1i c\u1ea7n \u0111\u01b0\u1ee3c ph\u00e2n t\u00edch k\u1ef9 h\u01a1n, v\u00e0 s\u1ef1 ki\u1ec7n c\u01a1 b\u1ea3n<\/strong> \u0110\u00f3 l\u00e0 nh\u1eefng nguy\u00ean nh\u00e2n m\u00e0 b\u1ea1n ng\u1eebng ph\u00e2n t\u00edch v\u00ec ch\u00fang \u0111\u1ee7 c\u1ee5 th\u1ec3 v\u00e0 c\u00f3 th\u1ec3 x\u1eed l\u00fd \u0111\u01b0\u1ee3c. Trong v\u00ed d\u1ee5 v\u1ec1 bao b\u00ec, \u201c\u00e1p su\u1ea5t kh\u00ed n\u00e9n th\u1ea5p t\u1ea1i tr\u1ea1m \u0111\u00f3ng n\u1eafp\u201d c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t s\u1ef1 ki\u1ec7n trung gian, trong khi \u201cb\u1ed9 \u0111i\u1ec1u ch\u1ec9nh \u0111\u01b0\u1ee3c \u0111\u1eb7t d\u01b0\u1edbi m\u1ee9c quy \u0111\u1ecbnh\u201d ho\u1eb7c \u201c\u1ed1ng d\u1eabn kh\u00ed b\u1ecb n\u1ee9t\u201d c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh c\u00e1c s\u1ef1 ki\u1ec7n c\u01a1 b\u1ea3n.<\/p>\n\n\n\n

\"S\u01a1<\/figure>\n\n\n\n

S\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y r\u1ea5t quan tr\u1ecdng b\u1edfi v\u00ec Ph\u00e2n t\u00edch C\u00e2y L\u1ed7i ch\u1ec9 h\u1eefu \u00edch khi c\u00e2y \u0111\u00f3 ch\u1ea1m \u0111\u1ebfn nh\u1eefng nguy\u00ean nh\u00e2n m\u00e0 nh\u00f3m c\u00f3 th\u1ec3 ki\u1ec3m tra, x\u00e1c minh ho\u1eb7c x\u1eed l\u00fd. N\u1ebfu m\u1ecdi nh\u00e1nh \u0111\u1ec1u d\u1eebng l\u1ea1i \u1edf c\u1ea5p \u0111\u1ed9 trung gian, k\u1ebft qu\u1ea3 s\u1ebd tr\u1edf th\u00e0nh m\u1ed9t b\u1ea3n ph\u00e1c th\u1ea3o kh\u00e1i ni\u1ec7m h\u01a1n l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 t\u00ecm ra nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5. N\u1ebfu m\u1ecdi nh\u00e1nh \u0111\u1ec1u \u0111i qu\u00e1 s\u00e2u, c\u00e2y s\u1ebd kh\u00f3 b\u1ea3o tr\u00ec v\u00e0 kh\u00f3 s\u1eed d\u1ee5ng trong c\u00e1c cu\u1ed9c \u0111i\u1ec1u tra th\u1ef1c t\u1ebf.<\/p>\n\n\n\n

<\/span>S\u1eed d\u1ee5ng c\u1ed5ng logic \u0111\u1ec3 minh h\u1ecda c\u00e1ch c\u00e1c l\u1ed7i k\u1ebft h\u1ee3p v\u1edbi nhau.<\/span><\/h3>\n\n\n\n

S\u1ee9c m\u1ea1nh c\u1ee7a m\u1ed9t ph\u00e2n t\u00edch c\u00e2y l\u1ed7i<\/a><\/strong> s\u01a1 \u0111\u1ed3 n\u00e0y xu\u1ea5t ph\u00e1t t\u1eeb n\u00f3 c\u1ed5ng logic<\/strong>. M\u1ed8T HO\u1eb6C<\/strong> C\u1ed5ng c\u00f3 ngh\u0129a l\u00e0 b\u1ea5t k\u1ef3 s\u1ef1 ki\u1ec7n \u0111\u1ea7u v\u00e0o n\u00e0o c\u0169ng c\u00f3 th\u1ec3 t\u1ea1o ra s\u1ef1 ki\u1ec7n \u1edf c\u1ea5p cao h\u01a1n, trong khi m\u1ed9t V\u00c0 <\/strong>"C\u1ed5ng" \u1edf \u0111\u00e2y c\u00f3 ngh\u0129a l\u00e0 nhi\u1ec1u \u0111i\u1ec1u ki\u1ec7n ph\u1ea3i x\u1ea3y ra \u0111\u1ed3ng th\u1eddi. Trong tr\u01b0\u1eddng h\u1ee3p d\u00e2y chuy\u1ec1n \u0111\u00f3ng g\u00f3i, "\u00e1p su\u1ea5t kh\u00ed n\u00e9n th\u1ea5p t\u1ea1i tr\u1ea1m \u0111\u00f3ng n\u1eafp" c\u00f3 th\u1ec3 do s\u1ef1 c\u1ed1 cung c\u1ea5p kh\u00ed HO\u1eb6C s\u1ef1 c\u1ed1 \u0111i\u1ec1u khi\u1ec3n \u00e1p su\u1ea5t c\u1ee5c b\u1ed9, v\u00ec ch\u1ec9 m\u1ed9t trong hai nguy\u00ean nh\u00e2n n\u00e0y c\u0169ng c\u00f3 th\u1ec3 khi\u1ebfn m\u00e1y d\u1eebng ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n

C\u00e1c c\u1ed5ng AND v\u00e0 OR thay \u0111\u1ed5i \u00fd ngh\u0129a c\u1ee7a \u0111\u01b0\u1eddng d\u1eabn l\u1ed7i theo m\u1ed9t c\u00e1ch r\u1ea5t th\u1ef1c t\u1ebf. N\u1ebfu m\u1ed9t nh\u00e1nh s\u1eed d\u1ee5ng c\u1ed5ng OR, m\u1ed7i nguy\u00ean nh\u00e2n l\u00e0 m\u1ed9t \u1ee9ng c\u1eed vi\u00ean \u0111\u1ed9c l\u1eadp v\u00e0 c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m tra ri\u00eang bi\u1ec7t. N\u1ebfu m\u1ed9t nh\u00e1nh s\u1eed d\u1ee5ng c\u1ed5ng AND, vi\u1ec7c \u0111i\u1ec1u tra ph\u1ea3i x\u00e1c nh\u1eadn s\u1ef1 k\u1ebft h\u1ee3p; v\u00ed d\u1ee5, m\u1ed9t m\u00e1y ch\u1ec9 c\u00f3 th\u1ec3 b\u1ecb ng\u1eaft khi s\u1ea3n l\u01b0\u1ee3ng m\u00e1y n\u00e9n gi\u1ea3m V\u00c0 nhu c\u1ea7u tr\u00ean c\u00e1c \u0111\u01b0\u1eddng d\u00e2y song song t\u0103ng \u0111\u1ed9t bi\u1ebfn c\u00f9ng l\u00fac.<\/p>\n\n\n\n

\"Ph\u00e2n<\/figure>\n\n\n\n

<\/span>X\u00e2y d\u1ef1ng c\u00e2y t\u1eebng b\u01b0\u1edbc m\u1ed9t<\/span><\/h3>\n\n\n\n

N\u1ebfu b\u1ea1n \u0111ang c\u00e2n nh\u1eafc c\u00e1ch x\u00e2y d\u1ef1ng s\u01a1 \u0111\u1ed3 ph\u00e2n t\u00edch c\u00e2y l\u1ed7i, h\u00e3y s\u1eed d\u1ee5ng... tr\u00ecnh t\u1ef1 k\u1ef7 lu\u1eadt<\/strong> Thay v\u00ec c\u00f9ng l\u00fac l\u1eadp ra nhi\u1ec1u nh\u00e1nh kh\u00e1c nhau, tr\u01b0\u1edbc ti\u00ean h\u00e3y x\u00e1c \u0111\u1ecbnh s\u1ef1 ki\u1ec7n ch\u00ednh, m\u1ed1c th\u1eddi gian v\u00e0 h\u1ec7 th\u1ed1ng b\u1ecb \u1ea3nh h\u01b0\u1edfng. Th\u1ee9 hai, x\u00e1c \u0111\u1ecbnh c\u00e1c nguy\u00ean nh\u00e2n tr\u1ef1c ti\u1ebfp g\u1ea7n nh\u1ea5t v\u1edbi s\u1ef1 ki\u1ec7n ch\u00ednh. Th\u1ee9 ba, m\u1edf r\u1ed9ng t\u1eebng nh\u00e1nh b\u1eb1ng c\u00e1ch \u0111\u1eb7t c\u00e2u h\u1ecfi: \u201c\u0110i\u1ec1u g\u00ec \u0111\u00e3 ph\u1ea3i x\u1ea3y ra sai s\u00f3t, ho\u1eb7c \u0111i\u1ec1u ki\u1ec7n n\u00e0o \u0111\u00e3 ph\u1ea3i t\u1ed3n t\u1ea1i, \u0111\u1ec3 s\u1ef1 ki\u1ec7n n\u00e0y x\u1ea3y ra?\u201d<\/p>\n\n\n\n

Trong v\u00ed d\u1ee5 v\u1ec1 \u0111\u00f3ng g\u00f3i, nh\u00f3m c\u00f3 th\u1ec3 chia s\u1ef1 ki\u1ec7n ch\u00ednh th\u00e0nh hai nh\u00e1nh c\u1ea5p \u0111\u1ed9 m\u1ed9t: l\u01b0\u1ee3ng kh\u00ed cung c\u1ea5p \u0111\u1ebfn tr\u1ea1m \u0111\u00f3ng n\u1eafp kh\u00f4ng \u0111\u1ee7 v\u00e0 t\u00edn hi\u1ec7u ng\u1eaft \u00e1p su\u1ea5t th\u1ea5p sai. Nh\u00e1nh \u0111\u1ea7u ti\u00ean sau \u0111\u00f3 c\u00f3 th\u1ec3 ph\u00e2n nh\u00e1nh th\u00e0nh hi\u1ec7u su\u1ea5t m\u00e1y n\u00e9n k\u00e9m, r\u00f2 r\u1ec9 \u0111\u01b0\u1eddng \u1ed1ng, b\u1ed9 l\u1ecdc b\u1ecb t\u1eafc ho\u1eb7c tr\u1ee5c tr\u1eb7c b\u1ed9 \u0111i\u1ec1u ch\u1ec9nh. Nh\u00e1nh th\u1ee9 hai c\u00f3 th\u1ec3 ph\u00e2n nh\u00e1nh th\u00e0nh hi\u1ec7n t\u01b0\u1ee3ng tr\u00f4i c\u1ea3m bi\u1ebfn, d\u00e2y d\u1eabn b\u1ecb l\u1ecfng ho\u1eb7c ng\u01b0\u1ee1ng ng\u1eaft kh\u00f4ng ch\u00ednh x\u00e1c trong logic \u0111i\u1ec1u khi\u1ec3n.<\/p>\n\n\n\n

<\/span>Ho\u00e0n thi\u1ec7n s\u01a1 \u0111\u1ed3 c\u00e2y: Bi\u1ebft khi n\u00e0o n\u00ean d\u1eebng l\u1ea1i v\u00e0 x\u00e1c th\u1ef1c d\u1ef1a tr\u00ean b\u1eb1ng ch\u1ee9ng.<\/span><\/h3>\n\n\n\n

M\u1ed9t sai l\u1ea7m th\u01b0\u1eddng g\u1eb7p l\u00e0 coi m\u1ecdi nguy\u00ean nh\u00e2n ti\u1ec1m n\u0103ng nh\u01b0 m\u1ed9t nh\u00e1nh c\u1ea7n \u0111\u01b0\u1ee3c m\u1edf r\u1ed9ng th\u00eam. Tr\u00ean th\u1ef1c t\u1ebf, b\u1ea1n n\u00ean d\u1eebng l\u1ea1i khi nguy\u00ean nh\u00e2n \u0111\u1ee7 c\u1ee5 th\u1ec3 \u0111\u1ec3 x\u00e1c minh v\u00e0 ch\u1ec9 \u0111\u1ecbnh h\u00e0nh \u0111\u1ed9ng, ho\u1eb7c khi ph\u00e2n t\u00edch s\u00e2u h\u01a1n kh\u00f4ng mang l\u1ea1i nhi\u1ec1u gi\u00e1 tr\u1ecb quy\u1ebft \u0111\u1ecbnh. Trong tr\u01b0\u1eddng h\u1ee3p d\u00e2y chuy\u1ec1n \u0111\u00f3ng g\u00f3i, "\u1ed1ng d\u1eabn kh\u00ed b\u1ecb n\u1ee9t g\u1ea7n ch\u1ed7 n\u1ed1i \u1ed1ng g\u00f3p" th\u01b0\u1eddng l\u00e0 m\u1ed9t s\u1ef1 ki\u1ec7n c\u01a1 b\u1ea3n c\u00f3 th\u1ec3 x\u1eed l\u00fd \u0111\u01b0\u1ee3c, trong khi "b\u1ea3o tr\u00ec k\u00e9m" l\u1ea1i qu\u00e1 chung chung v\u00e0 kh\u00f4ng n\u00ean \u0111\u01b0\u1ee3c coi l\u00e0 \u0111i\u1ec3m d\u1eebng.<\/p>\n\n\n\n

C\u00e1c quy t\u1eafc d\u1eebng xe an to\u00e0n th\u01b0\u1eddng tu\u00e2n theo ba b\u00e0i ki\u1ec3m tra. Nguy\u00ean nh\u00e2n c\u1ea7n \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh l\u00e0: c\u00f3 th\u1ec3 quan s\u00e1t \u0111\u01b0\u1ee3c ho\u1eb7c ch\u1ee9ng minh \u0111\u01b0\u1ee3c<\/strong>, trong kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t c\u1ee7a \u0111\u1ed9i.<\/strong>, V\u00e0 \u0111\u1ee7 c\u1ee5 th\u1ec3 \u0111\u1ec3 h\u1ed7 tr\u1ee3 h\u00e0nh \u0111\u1ed9ng kh\u1eafc ph\u1ee5c<\/strong>. N\u1ebfu m\u1ed9t nh\u00e1nh kh\u00f4ng \u0111\u00e1p \u1ee9ng c\u00e1c \u0111i\u1ec1u ki\u1ec7n ki\u1ec3m tra \u0111\u00f3, h\u00e3y ti\u1ebfp t\u1ee5c ph\u00e2n t\u00e1ch n\u00f3 cho \u0111\u1ebfn khi n\u00f3 \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n

Tr\u01b0\u1edbc khi k\u1ebft th\u00fac ph\u00e2n t\u00edch, h\u00e3y ki\u1ec3m tra to\u00e0n b\u1ed9 s\u01a1 \u0111\u1ed3 c\u00e2y d\u1ef1a tr\u00ean b\u1eb1ng ch\u1ee9ng th\u1ef1c t\u1ebf t\u1eeb s\u1ef1 c\u1ed1. V\u00ed d\u1ee5 v\u1ec1 bao b\u00ec c\u00f3 th\u1ec3 bao g\u1ed3m d\u1eef li\u1ec7u xu h\u01b0\u1edbng m\u00e1y n\u00e9n, l\u1ec7nh b\u1ea3o tr\u00ec, l\u1ecbch s\u1eed ph\u1ee5 t\u00f9ng thay th\u1ebf, nh\u1eadt k\u00fd cu\u1ed9c g\u1ecdi c\u1ee7a ng\u01b0\u1eddi v\u1eadn h\u00e0nh v\u00e0 m\u00e3 th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng. N\u1ebfu m\u1ed9t nh\u00e1nh kh\u00f4ng c\u00f3 \u0111\u01b0\u1eddng d\u1eabn b\u1eb1ng ch\u1ee9ng, h\u00e3y g\u1eafn nh\u00e3n n\u00f3 l\u00e0 gi\u1ea3 thuy\u1ebft thay v\u00ec nguy\u00ean nh\u00e2n \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn.<\/p>\n\n\n\n

M\u1ed9t s\u01a1 \u0111\u1ed3 ph\u00e2n t\u00edch c\u00e2y l\u1ed7i m\u1ea1nh m\u1ebd c\u1ea7n cho ph\u00e9p nh\u00f3m c\u1ee7a b\u1ea1n nhanh ch\u00f3ng tr\u1ea3 l\u1eddi ba c\u00e2u h\u1ecfi: \u0111i\u1ec1u g\u00ec \u0111\u00e3 x\u1ea3y ra l\u1ed7i, \u0111\u01b0\u1eddng d\u1eabn l\u1ed7i ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o v\u00e0 nh\u1eefng nguy\u00ean nh\u00e2n c\u01a1 b\u1ea3n n\u00e0o \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn. Khi logic \u0111\u00f3 \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n r\u00f5 r\u00e0ng, s\u01a1 \u0111\u1ed3 s\u1ebd tr\u1edf n\u00ean h\u1eefu \u00edch h\u01a1n nhi\u1ec1u so v\u1edbi ch\u1ec9 l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 ph\u00e2n t\u00edch \u0111\u01a1n thu\u1ea7n. RCA<\/strong> V\u1eadt ch\u1ee9ng. N\u00f3 tr\u1edf th\u00e0nh m\u1ed9t c\u00f4ng c\u1ee5 h\u1ed7 tr\u1ee3 quy\u1ebft \u0111\u1ecbnh, gi\u00fap th\u1ef1c hi\u1ec7n c\u00e1c bi\u1ec7n ph\u00e1p kh\u1eafc ph\u1ee5c, x\u00e1c minh v\u00e0 xem x\u00e9t li\u00ean ch\u1ee9c n\u0103ng.<\/p>\n\n\n\n

<\/span>Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng FTA trong ph\u00e2n t\u00edch nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 v\u00e0 an to\u00e0n s\u1ea3n xu\u1ea5t?<\/span><\/h2>\n\n\n\n

Ph\u00e2n t\u00edch c\u00e2y l\u1ed7i<\/a><\/strong> Ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n t\u00edch c\u00e2y l\u1ed7i (FTA) h\u1eefu \u00edch nh\u1ea5t khi s\u1ef1 c\u1ed1 b\u1ea1n \u0111ang \u0111i\u1ec1u tra kh\u00f4ng ph\u1ea3i do m\u1ed9t nguy\u00ean nh\u00e2n r\u00f5 r\u00e0ng g\u00e2y ra, m\u00e0 do nhi\u1ec1u \u0111i\u1ec1u ki\u1ec7n c\u00f3 th\u1ec3 x\u1ea3y ra \u0111\u1ed3ng th\u1eddi. Tr\u00ean th\u1ef1c t\u1ebf, \u0111i\u1ec1u \u0111\u00f3 l\u00e0m cho n\u00f3 r\u1ea5t ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c s\u1ef1 ki\u1ec7n c\u00f3 h\u1eadu qu\u1ea3 nghi\u00eam tr\u1ecdng nh\u01b0 d\u1eebng d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t, s\u1ef1 c\u1ed1 an to\u00e0n lao \u0111\u1ed9ng, s\u1ef1 c\u1ed1 ti\u1ec7n \u00edch, r\u1ee7i ro \u00f4 nhi\u1ec5m v\u00e0 sai l\u1ec7ch quy tr\u00ecnh c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn ph\u1ebf ph\u1ea9m, l\u00e0m l\u1ea1i ho\u1eb7c khi\u1ebfu n\u1ea1i c\u1ee7a kh\u00e1ch h\u00e0ng. N\u1ebfu b\u1ea1n \u0111ang ngh\u0129 \u0111\u1ebfn vi\u1ec7c x\u00e2y d\u1ef1ng s\u01a1 \u0111\u1ed3 ph\u00e2n t\u00edch c\u00e2y l\u1ed7i, \u0111\u00f3 th\u01b0\u1eddng l\u00e0 d\u1ea5u hi\u1ec7u cho th\u1ea5y v\u1ea5n \u0111\u1ec1 c\u00f3 \u0111\u1ee7 c\u00e1c nguy\u00ean nh\u00e2n t\u01b0\u01a1ng t\u00e1c \u0111\u1ec3 bi\u1ec7n minh cho m\u1ed9t m\u00f4 h\u00ecnh logic c\u00f3 c\u1ea5u tr\u00fac. \u0110\u1ed1i v\u1edbi c\u00e1c v\u1ea5n \u0111\u1ec1 \u0111\u01a1n gi\u1ea3n h\u01a1n v\u1edbi m\u1ed9t nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 x\u1ea3y ra duy nh\u1ea5t, FTA th\u01b0\u1eddng cung c\u1ea5p nhi\u1ec1u ph\u00e2n t\u00edch h\u01a1n m\u1ee9c c\u1ea7n thi\u1ebft.<\/p>\n\n\n\n

C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ph\u00f9 h\u1ee3p nh\u1ea5t cho FTA trong s\u1ea3n xu\u1ea5t l\u00e0 c\u00e1c s\u1ef1 ki\u1ec7n c\u00f3 nhi\u1ec1u con \u0111\u01b0\u1eddng nh\u00e2n qu\u1ea3<\/strong>, c\u00e1c m\u1ee5c ti\u00eau chung gi\u1eefa c\u00e1c ph\u00f2ng ban<\/strong>, V\u00e0 t\u00e1c \u0111\u1ed9ng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn ho\u1ea1t \u0111\u1ed9ng ho\u1eb7c an to\u00e0n<\/strong>. C\u00e1c v\u00ed d\u1ee5 \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m vi\u1ec7c d\u00e2y chuy\u1ec1n \u0111\u00f3ng g\u00f3i ng\u1eebng ho\u1ea1t \u0111\u1ed9ng do c\u1ea3 \u0111i\u1ec1u ki\u1ec7n h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n v\u00e0 c\u01a1 kh\u00ed, s\u1ef1 c\u1ed1 r\u00f2 r\u1ec9 l\u1ed7i \u00f4 t\u00f4 li\u00ean quan \u0111\u1ebfn bi\u1ebfn \u0111\u1ed9ng quy tr\u00ecnh c\u1ed9ng v\u1edbi l\u1ed7i ki\u1ec3m tra, ho\u1eb7c s\u1ef1 c\u1ed1 qu\u00e1 \u00e1p h\u00f3a ch\u1ea5t ph\u1ee5 thu\u1ed9c v\u00e0o s\u1ef1 c\u1ed1 thi\u1ebft b\u1ecb, quy tr\u00ecnh v\u00e0 ph\u1ea3n \u1ee9ng c\u1ee7a con ng\u01b0\u1eddi. Trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p \u0111\u00f3, FTA gi\u00fap c\u00e1c nh\u00f3m ki\u1ec3m tra s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a c\u00e1c nguy\u00ean nh\u00e2n thay v\u00ec ch\u1ec9 t\u00ecm ki\u1ebfm m\u1ed9t tri\u1ec7u ch\u1ee9ng t\u1ea1i m\u1ed9t th\u1eddi \u0111i\u1ec3m.<\/p>\n\n\n\n

\"Infographic<\/figure>\n\n\n\n

<\/span>S\u1eed d\u1ee5ng FTA cho vi\u1ec7c t\u1eaft m\u00e1y m\u00f3c ph\u1ee9c t\u1ea1p.<\/span><\/h3>\n\n\n\n

FTA ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 khi vi\u1ec7c ng\u1eebng ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed9t xu\u1ea5t c\u00f3 th\u1ec3 x\u1ea3y ra do... m\u1ed9t s\u1ed1 h\u1ec7 th\u1ed1ng con<\/strong> Thay v\u00ec ch\u1ec9 m\u1ed9t b\u1ed9 ph\u1eadn b\u1ecb h\u1ecfng. H\u00e3y xem x\u00e9t m\u1ed9t d\u00e2y chuy\u1ec1n gia c\u00f4ng CNC d\u1eebng \u0111\u1ed9t ng\u1ed9t trong th\u1eddi gian s\u1ea3n xu\u1ea5t cao \u0111i\u1ec3m: s\u1ef1 ki\u1ec7n h\u00e0ng \u0111\u1ea7u c\u00f3 th\u1ec3 l\u00e0 "d\u00e2y chuy\u1ec1n kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng", nh\u01b0ng c\u00e1c nguy\u00ean nh\u00e2n th\u1ef1c t\u1ebf c\u00f3 th\u1ec3 bao g\u1ed3m qu\u00e1 t\u1ea3i tr\u1ee5c ch\u00ednh, m\u1ea5t l\u01b0u l\u01b0\u1ee3ng ch\u1ea5t l\u00e0m m\u00e1t, l\u1ed7i c\u1ea3m bi\u1ebfn, m\u1ea5t k\u1ebft n\u1ed1i PLC v\u00e0 ph\u1ea3n h\u1ed3i ch\u1eadm tr\u1ec5 c\u1ee7a ng\u01b0\u1eddi v\u1eadn h\u00e0nh. S\u01a1 \u0111\u1ed3 c\u00e2y l\u1ed7i gi\u00fap c\u00e1c nh\u00f3m b\u1ea3o tr\u00ec v\u00e0 \u0111\u1ed9 tin c\u1eady ch\u1ec9 ra nh\u1eefng \u0111\u01b0\u1eddng d\u1eabn n\u00e0o ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed9c l\u1eadp v\u00e0 nh\u1eefng \u0111\u01b0\u1eddng d\u1eabn n\u00e0o c\u1ea7n s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a nhi\u1ec1u l\u1ed7i.<\/p>\n\n\n\n

<\/span>S\u1eed d\u1ee5ng FTA cho c\u00e1c s\u1ef1 c\u1ed1 an to\u00e0n ho\u1eb7c EHS nghi\u00eam tr\u1ecdng.<\/span><\/h3>\n\n\n\n

FTA<\/strong><\/a> \u0110\u00e2y c\u0169ng l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn t\u1ed1t khi s\u1ef1 ki\u1ec7n c\u00f3 nh\u1eefng y\u1ebfu t\u1ed1 r\u00f5 r\u00e0ng. \u00fd ngh\u0129a an to\u00e0n<\/strong> v\u00e0 kh\u00f4ng th\u1ec3 gi\u1ea3i th\u00edch ch\u1ec9 b\u1eb1ng m\u1ed9t h\u00e0nh \u0111\u1ed9ng kh\u00f4ng an to\u00e0n duy nh\u1ea5t. V\u00ed d\u1ee5, trong m\u1ed9t nh\u00e0 m\u00e1y gia c\u00f4ng kim lo\u1ea1i, tai n\u1ea1n lao \u0111\u1ed9ng khi c\u00f4ng nh\u00e2n v\u00e0o khu v\u1ef1c l\u00e0m vi\u1ec7c c\u1ee7a robot c\u00f3 th\u1ec3 li\u00ean quan \u0111\u1ebfn vi\u1ec7c b\u1ecf qua kh\u00f3a li\u00ean \u0111\u1ed9ng, kh\u00f3a kh\u00f4ng ho\u00e0n ch\u1ec9nh, b\u00e0n giao ca k\u00e9m hi\u1ec7u qu\u1ea3 v\u00e0 c\u1ea3m bi\u1ebfn hi\u1ec7n di\u1ec7n b\u1ecb l\u1ed7i. Ph\u01b0\u01a1ng ph\u00e1p tuy\u1ebfn t\u00ednh c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh m\u1ed9t nguy\u00ean nh\u00e2n tr\u1ef1c ti\u1ebfp, nh\u01b0ng ph\u00e2n t\u00edch c\u00e2y s\u1ef1 c\u1ed1 (FTA) t\u1ed1t h\u01a1n khi b\u1ea1n c\u1ea7n hi\u1ec3u c\u00e1ch c\u00e1c bi\u1ec7n ph\u00e1p an to\u00e0n b\u1ecb l\u1ed7i c\u00f9ng nhau.<\/p>\n\n\n\n

V\u00ec EHS<\/strong> \u0110\u1ed1i v\u1edbi c\u00e1c nh\u00e0 qu\u1ea3n l\u00fd, c\u1ea5u tr\u00fac t\u1eeb tr\u00ean xu\u1ed1ng n\u00e0y \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch trong c\u00e1c cu\u1ed9c \u0111i\u1ec1u tra li\u00ean quan \u0111\u1ebfn vi ph\u1ea1m quy \u0111\u1ecbnh ho\u1eb7c c\u00e1c s\u1ef1 c\u1ed1 su\u00fdt x\u1ea3y ra l\u1eb7p \u0111i l\u1eb7p l\u1ea1i. N\u00f3 h\u1ed7 tr\u1ee3 m\u1ed9t h\u1ed3 s\u01a1 logic nh\u00e2n qu\u1ea3 \u0111\u00e1ng tin c\u1eady h\u01a1n, \u0111i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng khi c\u00e1c h\u00e0nh \u0111\u1ed9ng kh\u1eafc ph\u1ee5c ph\u1ea3i \u0111\u01b0\u1ee3c xem x\u00e9t tr\u00ean c\u00e1c ch\u1ee9c n\u0103ng s\u1ea3n xu\u1ea5t, b\u1ea3o tr\u00ec v\u00e0 an to\u00e0n. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao FTA \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c l\u0129nh v\u1ef1c r\u1ee7i ro cao ngo\u00e0i s\u1ea3n xu\u1ea5t, bao g\u1ed3m h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, d\u1ea7u kh\u00ed v\u00e0 c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p ch\u1ebf bi\u1ebfn.<\/p>\n\n\n\n

<\/span>S\u1eed d\u1ee5ng FTA khi s\u1ef1 c\u1ed1 trong quy tr\u00ecnh c\u00f3 th\u1ec3 g\u00e2y ra r\u1ee7i ro v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng.<\/span><\/h3>\n\n\n\n

Trong s\u1ea3n xu\u1ea5t theo quy tr\u00ecnh, FTA h\u1eefu \u00edch khi m\u1ed9t s\u1ef1 c\u1ed1 nh\u1ecf c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn h\u1eadu qu\u1ea3 lan r\u1ed9ng c\u1ea3 v\u1ec1 v\u1eadn h\u00e0nh v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m. V\u00ed d\u1ee5, m\u1ed9t l\u00f4 pha tr\u1ed9n h\u00f3a ch\u1ea5t kh\u00f4ng \u0111\u1ea1t ti\u00eau chu\u1ea9n c\u00f3 th\u1ec3 b\u1eaft ngu\u1ed3n t\u1eeb s\u1ef1 bi\u1ebfn \u0111\u1ed5i nguy\u00ean li\u1ec7u th\u00f4, van \u0111\u1ecbnh l\u01b0\u1ee3ng b\u1ecb k\u1eb9t, thao t\u00e1c sai c\u1ee7a ng\u01b0\u1eddi v\u1eadn h\u00e0nh, l\u1ed7i th\u00f4ng s\u1ed1 c\u00f4ng th\u1ee9c ho\u1eb7c x\u00e1c nh\u1eadn t\u1eeb ph\u00f2ng th\u00ed nghi\u1ec7m b\u1ecb ch\u1eadm tr\u1ec5. V\u00ec nh\u1eefng nguy\u00ean nh\u00e2n n\u00e0y c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p theo nhi\u1ec1u c\u00e1ch kh\u00e1c nhau, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y r\u1ea5t ph\u00f9 h\u1ee3p \u0111\u1ec3 l\u1eadp b\u1ea3n \u0111\u1ed3 to\u00e0n b\u1ed9 chu\u1ed7i l\u1ed7i h\u01a1n l\u00e0 ch\u1ec9 x\u00e1c \u0111\u1ecbnh m\u1ed9t b\u01b0\u1edbc l\u1ed7i ri\u00eang l\u1ebb.<\/p>\n\n\n\n

\u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n t\u00edch c\u00e2y l\u1ed7i th\u1ef1c ti\u1ec5n nh\u1ea5t trong s\u1ea3n xu\u1ea5t v\u00ec n\u00f3 k\u1ebft n\u1ed1i s\u1ea3n xu\u1ea5t, ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 k\u1ef9 thu\u1eadt quy tr\u00ecnh trong m\u1ed9t m\u00f4 h\u00ecnh duy nh\u1ea5t. Logic t\u01b0\u01a1ng t\u1ef1 c\u0169ng \u00e1p d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng th\u1ef1c ph\u1ea9m, \u0111i\u1ec7n t\u1eed v\u00e0 d\u01b0\u1ee3c ph\u1ea9m, n\u01a1i s\u1ef1 c\u1ed1 trong quy tr\u00ecnh c\u00f3 th\u1ec3 t\u1ea1o ra r\u1ee7i ro ti\u1ec1m \u1ea9n \u1edf c\u00e1c kh\u00e2u ti\u1ebfp theo. N\u1ebfu c\u00e2u h\u1ecfi kh\u00f4ng ch\u1ec9 l\u00e0 \u201ct\u1ea1i sao s\u1ef1 sai l\u1ec7ch l\u1ea1i x\u1ea3y ra?\u201d m\u00e0 c\u00f2n l\u00e0 \u201cnh\u1eefng s\u1ef1 k\u1ebft h\u1ee3p n\u00e0o \u0111\u00e3 d\u1eabn \u0111\u1ebfn vi\u1ec7c x\u1ea3y ra s\u1ef1 c\u1ed1?\u201d, th\u00ec ph\u00e2n t\u00edch c\u00e2y l\u1ed7i th\u01b0\u1eddng l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t h\u01a1n.<\/p>\n\n\n\n

Trong ng\u00e0nh s\u1ea3n xu\u1ea5t n\u00f3i chung, FTA<\/a><\/strong> N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c ti\u1ec7n \u00edch, t\u00e0i s\u1ea3n g\u00e2y t\u1eafc ngh\u1ebdn v\u00e0 c\u00e1c l\u1ed7i h\u1ec7 th\u1ed1ng \u0111\u1ecbnh k\u1ef3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn n\u0103ng su\u1ea5t. Trong ng\u00e0nh \u00f4 t\u00f4, n\u00f3 r\u1ea5t c\u00f3 gi\u00e1 tr\u1ecb trong vi\u1ec7c ph\u00e2n t\u00edch l\u1ed7i ph\u00e1t sinh, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c b\u1ed9 ph\u1eadn, kh\u1ea3 n\u0103ng c\u1ee7a quy tr\u00ecnh, t\u00ecnh tr\u1ea1ng c\u1ee7a thi\u1ebft b\u1ecb c\u1ed1 \u0111\u1ecbnh v\u00e0 hi\u1ec7u qu\u1ea3 ki\u1ec3m tra \u0111\u1ec1u \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn k\u1ebft qu\u1ea3. Trong ng\u00e0nh h\u00f3a ch\u1ea5t v\u00e0 c\u00e1c quy tr\u00ecnh li\u00ean t\u1ee5c kh\u00e1c, n\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c s\u1ef1 ki\u1ec7n quan tr\u1ecdng v\u1ec1 an to\u00e0n nh\u01b0 m\u1ea5t ki\u1ec3m so\u00e1t, qu\u00e1 \u00e1p ho\u1eb7c l\u1ed7i v\u00f2ng \u0111i\u1ec1u khi\u1ec3n.<\/p>\n\n\n\n

\u0110i\u1ec3m chung c\u1ee7a c\u00e1c m\u00f4i tr\u01b0\u1eddng n\u00e0y l\u00e0 s\u1ef1 ph\u1ee5 thu\u1ed9c l\u1eabn nhau. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u00e0ng tr\u1edf n\u00ean c\u00f3 gi\u00e1 tr\u1ecb h\u01a1n khi m\u1ee9c \u0111\u1ed9 t\u1ef1 \u0111\u1ed9ng h\u00f3a t\u0103ng l\u00ean, c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 \u0111\u01b0\u1ee3c ch\u1ed3ng l\u1edbp v\u00e0 chi ph\u00ed cho m\u1ed9t k\u1ebft lu\u1eadn sai l\u1ea7m t\u0103ng cao. \u0110\u00f3 c\u0169ng l\u00e0 ranh gi\u1edbi th\u1ef1c ti\u1ec5n gi\u1eefa FTA v\u00e0 c\u00e1c c\u00f4ng c\u1ee5 x\u00e1c \u0111\u1ecbnh nguy\u00ean nh\u00e2n g\u1ed1c \u0111\u01a1n gi\u1ea3n h\u01a1n: s\u1ef1 ki\u1ec7n c\u00e0ng ph\u1ee5 thu\u1ed9c v\u00e0o logic gi\u1eefa nhi\u1ec1u nguy\u00ean nh\u00e2n, th\u00ec FTA c\u00e0ng \u0111\u00e1ng \u0111\u1ec3 s\u1eed d\u1ee5ng.<\/p>\n\n\n\n

<\/span>Khi n\u00e0o m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p \u0111\u01a1n gi\u1ea3n h\u01a1n c\u00f3 th\u1ec3 l\u00e0 \u0111\u1ee7<\/span><\/h3>\n\n\n\n

Kh\u00f4ng ph\u1ea3i m\u1ecdi v\u1ea5n \u0111\u1ec1 trong s\u1ea3n xu\u1ea5t \u0111\u1ec1u c\u1ea7n \u0111\u1ebfn s\u01a1 \u0111\u1ed3 c\u00e2y l\u1ed7i. N\u1ebfu b\u0103ng t\u1ea3i d\u1eebng l\u1ea1i do d\u00e2y \u0111ai truy\u1ec1n \u0111\u1ed9ng b\u1ecb \u0111\u1ee9t v\u00e0 vi\u1ec7c ki\u1ec3m tra x\u00e1c nh\u1eadn c\u00f3 s\u1ef1 hao m\u00f2n r\u00f5 r\u00e0ng m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 t\u01b0\u01a1ng t\u00e1c n\u00e0o kh\u00e1c v\u1edbi h\u1ec7 th\u1ed1ng, th\u00ec vi\u1ec7c xem x\u00e9t h\u00e0nh \u0111\u1ed9ng kh\u1eafc ph\u1ee5c tr\u1ef1c ti\u1ebfp c\u00f3 th\u1ec3 l\u00e0 \u0111\u1ee7. N\u1ebfu m\u1ed9t l\u1ed7i nh\u1ecf l\u1eb7p \u0111i l\u1eb7p l\u1ea1i d\u01b0\u1eddng nh\u01b0 xu\u1ea5t ph\u00e1t t\u1eeb m\u1ed9t tr\u1ea1m l\u00e0m vi\u1ec7c v\u00e0 m\u1ed9t bi\u1ebfn s\u1ed1 c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c, th\u00ec ph\u01b0\u01a1ng ph\u00e1p 5 c\u00e2u h\u1ecfi "T\u1ea1i sao" ho\u1eb7c s\u01a1 \u0111\u1ed3 x\u01b0\u01a1ng c\u00e1 c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n h\u00e0nh \u0111\u1ed9ng nhanh h\u01a1n.<\/p>\n\n\n\n

<\/span>So s\u00e1nh FTA v\u00e0 FMEA, ph\u01b0\u01a1ng ph\u00e1p 5 Why v\u00e0 s\u01a1 \u0111\u1ed3 x\u01b0\u01a1ng c\u00e1: L\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p ph\u00f9 h\u1ee3p<\/span><\/h2>\n\n\n\n

<\/span>FTA so v\u1edbi FMEA: B\u1eaft \u0111\u1ea7u v\u1edbi c\u00e2u h\u1ecfi b\u1ea1n c\u1ea7n tr\u1ea3 l\u1eddi<\/span><\/h3>\n\n\n\n

C\u00e1ch h\u1eefu \u00edch nh\u1ea5t \u0111\u1ec3 l\u1ef1a ch\u1ecdn gi\u1eefa Ph\u00e2n t\u00edch c\u00e2y l\u1ed7i<\/a><\/strong> V\u00e0 FMEA<\/strong> \u0110i\u1ec3m kh\u00e1c bi\u1ec7t n\u1eb1m \u1edf h\u01b0\u1edbng ph\u00e2n t\u00edch. Ph\u00e2n t\u00edch c\u00e2y l\u1ed7i (FTA) b\u1eaft \u0111\u1ea7u v\u1edbi m\u1ed9t k\u1ebft qu\u1ea3 kh\u00f4ng mong mu\u1ed1n \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh v\u00e0 l\u00e0m vi\u1ec7c ng\u01b0\u1ee3c l\u1ea1i \u0111\u1ec3 l\u1eadp b\u1ea3n \u0111\u1ed3 c\u00e1ch nhi\u1ec1u nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p \u0111\u1ec3 t\u1ea1o ra k\u1ebft qu\u1ea3 \u0111\u00f3. Ph\u00e2n t\u00edch ch\u1ebf \u0111\u1ed9 l\u1ed7i v\u00e0 \u1ea3nh h\u01b0\u1edfng (FMEA) di chuy\u1ec3n theo h\u01b0\u1edbng ng\u01b0\u1ee3c l\u1ea1i: n\u00f3 b\u1eaft \u0111\u1ea7u v\u1edbi c\u00e1c ch\u1ebf \u0111\u1ed9 l\u1ed7i ti\u1ec1m \u1ea9n \u1edf c\u1ea5p \u0111\u1ed9 th\u00e0nh ph\u1ea7n, b\u01b0\u1edbc quy tr\u00ecnh ho\u1eb7c nhi\u1ec7m v\u1ee5 v\u00e0 l\u00e0m vi\u1ec7c ti\u1ebfn l\u00ean \u0111\u1ec3 \u01b0\u1edbc t\u00ednh t\u00e1c \u0111\u1ed9ng, m\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng, t\u1ea7n su\u1ea5t x\u1ea3y ra v\u00e0 kh\u1ea3 n\u0103ng ph\u00e1t hi\u1ec7n c\u1ee7a ch\u00fang.<\/p>\n\n\n\n

S\u1ef1 kh\u00e1c bi\u1ec7t \u0111\u00f3 c\u0169ng d\u1eabn \u0111\u1ebfn s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 th\u1eddi \u0111i\u1ec3m \u00e1p d\u1ee5ng. FMEA th\u01b0\u1eddng hi\u1ec7u qu\u1ea3 h\u01a1n \u1edf giai \u0111o\u1ea1n \u0111\u1ea7u c\u1ee7a thi\u1ebft k\u1ebf, l\u1eadp k\u1ebf ho\u1ea1ch quy tr\u00ecnh, APQP ho\u1eb7c ph\u00e1t tri\u1ec3n k\u1ebf ho\u1ea1ch ki\u1ec3m so\u00e1t, khi b\u1ea1n mu\u1ed1n ng\u0103n ng\u1eeba s\u1ef1 c\u1ed1 tr\u01b0\u1edbc khi ch\u00fang x\u1ea3y ra. FTA h\u1eefu \u00edch h\u01a1n khi b\u1ea1n c\u1ea7n hi\u1ec3u l\u00fd do t\u1ea1i sao m\u1ed9t s\u1ef1 ki\u1ec7n quan tr\u1ecdng c\u00f3 th\u1ec3 x\u1ea3y ra ho\u1eb7c \u0111\u00e3 x\u1ea3y ra, \u0111\u1eb7c bi\u1ec7t khi chu\u1ed7i s\u1ef1 c\u1ed1 c\u00f3 \u0111i\u1ec1u ki\u1ec7n, ph\u1ee5 thu\u1ed9c l\u1eabn nhau ho\u1eb7c li\u00ean quan \u0111\u1ebfn an to\u00e0n. N\u1ebfu b\u1ea1n \u0111ang ph\u00e2n v\u00e2n gi\u1eefa vi\u1ec7c s\u1eed d\u1ee5ng FTA v\u00e0 FMEA, nguy\u00ean t\u1eafc r\u1ea5t \u0111\u01a1n gi\u1ea3n: s\u1eed d\u1ee5ng FMEA \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n r\u1ee7i ro t\u1ed5ng qu\u00e1t tr\u00ean to\u00e0n h\u1ec7 th\u1ed1ng, v\u00e0 s\u1eed d\u1ee5ng FTA \u0111\u1ec3 \u0111i\u1ec1u tra s\u00e2u m\u1ed9t s\u1ef1 ki\u1ec7n c\u1ee5 th\u1ec3 c\u00f3 h\u1eadu qu\u1ea3 nghi\u00eam tr\u1ecdng.<\/p>\n\n\n\n

\"Bi\u1ec3u<\/figure>\n\n\n\n

<\/span>Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng t\u1eebng ph\u01b0\u01a1ng ph\u00e1p?<\/span><\/h3>\n\n\n\n

FTA l\u00e0 ph\u01b0\u01a1ng ph\u00e1p t\u1ed1t h\u01a1n khi s\u1ef1 ki\u1ec7n \u0111\u00e3 r\u00f5 r\u00e0ng, nh\u01b0ng chu\u1ed7i nguy\u00ean nh\u00e2n<\/strong> Kh\u00f4ng ph\u1ea3i v\u1eady. M\u1ed9t nh\u00e0 m\u00e1y c\u00f3 th\u1ec3 bi\u1ebft r\u1eb1ng \u0111\u00e3 x\u1ea3y ra s\u1ef1 c\u1ed1 d\u1eebng kh\u1ea9n c\u1ea5p, l\u00f2 ph\u1ea3n \u1ee9ng theo m\u1ebb b\u1ecb qu\u00e1 \u00e1p, ho\u1eb7c s\u1ea3n ph\u1ea9m b\u1ecb l\u1ed7i trong qu\u00e1 tr\u00ecnh ki\u1ec3m tra cu\u1ed1i c\u00f9ng \u0111\u00e3 \u0111\u1ebfn tay kh\u00e1ch h\u00e0ng, nh\u01b0ng v\u1eabn c\u1ea7n hi\u1ec3u c\u00e1ch th\u1ee9c t\u01b0\u01a1ng t\u00e1c gi\u1eefa t\u00ecnh tr\u1ea1ng thi\u1ebft b\u1ecb, h\u00e0nh \u0111\u1ed9ng c\u1ee7a ng\u01b0\u1eddi v\u1eadn h\u00e0nh, ki\u1ec3m so\u00e1t quy tr\u00ecnh v\u00e0 c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 c\u1ee7a ban qu\u1ea3n l\u00fd. Trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p \u0111\u00f3, ph\u00e2n t\u00edch c\u00e2y s\u1ef1 c\u1ed1 trong s\u1ea3n xu\u1ea5t ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 v\u00ec n\u00f3 n\u1eafm b\u1eaft \u0111\u01b0\u1ee3c s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a c\u00e1c nguy\u00ean nh\u00e2n thay v\u00ec bu\u1ed9c nh\u00f3m ph\u1ea3i \u0111\u01b0a ra m\u1ed9t l\u1eddi gi\u1ea3i th\u00edch tuy\u1ebfn t\u00ednh duy nh\u1ea5t.<\/p>\n\n\n\n

\u0110\u00e2y c\u0169ng l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t h\u01a1n khi logic quan tr\u1ecdng kh\u00f4ng k\u00e9m g\u00ec ch\u00ednh nguy\u00ean nh\u00e2n. V\u00ed d\u1ee5, s\u1ef1 c\u1ed1 \u00f4 nhi\u1ec5m d\u00e2y chuy\u1ec1n \u0111\u00f3ng g\u00f3i ch\u1ec9 c\u00f3 th\u1ec3 x\u1ea3y ra n\u1ebfu m\u1ea5t t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a l\u1edbp ni\u00eam phong v\u00e0 b\u1ecf s\u00f3t kh\u00e2u ki\u1ec3m tra, trong khi vi\u1ec7c d\u1eebng d\u00e2y chuy\u1ec1n c\u00f3 th\u1ec3 do m\u1ed9t trong s\u1ed1 nhi\u1ec1u l\u1ed7i c\u1ea3m bi\u1ebfn ho\u1eb7c b\u1ed9 \u0111i\u1ec1u khi\u1ec3n g\u00e2y ra. S\u1ef1 kh\u00e1c bi\u1ec7t \u0111\u00f3 ch\u00ednh l\u00e0 gi\u00e1 tr\u1ecb m\u00e0 FTA mang l\u1ea1i, b\u1edfi v\u00ec c\u1ea5u tr\u00fac c\u00e2y gi\u00fap l\u00e0m r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c \u0111i\u1ec1u ki\u1ec7n k\u1ebft h\u1ee3p v\u00e0 c\u00e1c \u0111\u01b0\u1eddng d\u1eabn thay th\u1ebf theo c\u00e1ch m\u00e0 c\u00e1c c\u00f4ng c\u1ee5 RCA kh\u00e1c th\u01b0\u1eddng kh\u00f4ng l\u00e0m \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n

FMEA<\/strong> th\u01b0\u1eddng l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t h\u01a1n khi b\u1ea1n c\u1ea7n ph\u1ea1m vi ph\u1ee7 s\u00f3ng r\u1ed9ng<\/strong> Thay v\u00ec t\u00e1i c\u1ea5u tr\u00fac s\u00e2u r\u1ed9ng. V\u00ed d\u1ee5, trong m\u1ed9t quy tr\u00ecnh l\u1eafp r\u00e1p m\u1edbi, nh\u00f3m ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng c\u00f3 th\u1ec3 c\u1ea7n xem x\u00e9t t\u1eebng tr\u1ea1m, x\u00e1c \u0111\u1ecbnh c\u00e1c ch\u1ebf \u0111\u1ed9 l\u1ed7i c\u00f3 th\u1ec3 x\u1ea3y ra, \u01b0\u1edbc t\u00ednh r\u1ee7i ro v\u00e0 x\u00e1c \u0111\u1ecbnh c\u00e1c bi\u1ec7n ph\u00e1p ki\u1ec3m so\u00e1t tr\u01b0\u1edbc khi \u0111\u01b0a v\u00e0o s\u1eed d\u1ee5ng. \u0110\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 v\u1ea5n \u0111\u1ec1 "l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u00e2y d\u1ef1ng s\u01a1 \u0111\u1ed3 ph\u00e2n t\u00edch c\u00e2y l\u1ed7i"; \u0111\u00f3 l\u00e0 m\u1ed9t b\u00e0i t\u1eadp ph\u00f2ng ng\u1eeba r\u1ee7i ro c\u00f3 c\u1ea5u tr\u00fac tr\u00ean nhi\u1ec1u \u0111i\u1ec3m l\u1ed7i ti\u1ec1m t\u00e0ng.<\/p>\n\n\n\n

FMEA c\u0169ng th\u1ef1c t\u1ebf h\u01a1n khi h\u1ec7 th\u1ed1ng \u0111\u1ee7 \u1ed5n \u0111\u1ecbnh \u0111\u1ec3 ph\u00e2n t\u00edch t\u1eebng b\u01b0\u1edbc v\u00e0 nh\u00f3m c\u00f3 ti\u00eau ch\u00ed ch\u1ea5m \u0111i\u1ec3m chu\u1ea9n. C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u00f4 t\u00f4 v\u00e0 \u0111i\u1ec7n t\u1eed d\u1ef1a v\u00e0o ph\u01b0\u01a1ng ph\u00e1p n\u00e0y v\u00ec n\u00f3 h\u1ed7 tr\u1ee3 c\u00e1c \u0111\u00e1nh gi\u00e1 \u0111a ch\u1ee9c n\u0103ng c\u00f3 th\u1ec3 l\u1eb7p l\u1ea1i v\u00e0 li\u00ean k\u1ebft t\u1ed1t v\u1edbi c\u00e1c k\u1ebf ho\u1ea1ch ki\u1ec3m so\u00e1t, x\u00e1c th\u1ef1c quy tr\u00ecnh v\u00e0 y\u00eau c\u1ea7u ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a nh\u00e0 cung c\u1ea5p. N\u1ebfu m\u1ee5c ti\u00eau ch\u00ednh c\u1ee7a b\u1ea1n l\u00e0 \u01b0u ti\u00ean h\u00f3a tr\u00ean ph\u1ea1m vi quy tr\u00ecnh r\u1ed9ng, FMEA th\u01b0\u1eddng cung c\u1ea5p m\u1ed9t b\u01b0\u1edbc \u0111\u00e1nh gi\u00e1 ban \u0111\u1ea7u kh\u1ea3 thi h\u01a1n so v\u1edbi FTA.<\/p>\n\n\n\n

5 c\u00e2u h\u1ecfi "T\u1ea1i sao?"<\/strong> V\u00e0 s\u01a1 \u0111\u1ed3 x\u01b0\u01a1ng c\u00e1<\/strong> Ch\u00fang l\u00e0 nh\u1eefng c\u00f4ng c\u1ee5 nhanh h\u01a1n \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 c\u1ee5 th\u1ec3 h\u01a1n v\u1edbi \u00edt bi\u1ebfn s\u1ed1 t\u01b0\u01a1ng t\u00e1c h\u01a1n. N\u1ebfu m\u1ed9t d\u00e2y chuy\u1ec1n CNC g\u1eb7p ph\u1ea3i l\u1ed7i bavia l\u1eb7p \u0111i l\u1eb7p l\u1ea1i do vi\u1ec7c thay th\u1ebf d\u1ee5ng c\u1ee5 b\u1ecb tr\u00ec ho\u00e3n, m\u1ed9t phi\u00ean ph\u00e2n t\u00edch 5 c\u00e2u h\u1ecfi "T\u1ea1i sao" ng\u1eafn g\u1ecdn c\u00f3 th\u1ec3 \u0111\u1ee7 \u0111\u1ec3 t\u00ecm ra v\u1ea5n \u0111\u1ec1 b\u1eaft ngu\u1ed3n t\u1eeb vi\u1ec7c kh\u00f4ng r\u00f5 r\u00e0ng v\u1ec1 tr\u00e1ch nhi\u1ec7m b\u1ea3o tr\u00ec ph\u00f2ng ng\u1eeba ho\u1eb7c k\u1ef7 lu\u1eadt thi\u1ebft l\u1eadp y\u1ebfu k\u00e9m. Trong tr\u01b0\u1eddng h\u1ee3p \u0111\u00f3, vi\u1ec7c x\u00e2y d\u1ef1ng m\u1ed9t s\u01a1 \u0111\u1ed3 c\u00e2y l\u1ed7i \u0111\u1ea7y \u0111\u1ee7 s\u1ebd t\u1ed1n th\u00eam c\u00f4ng s\u1ee9c m\u00e0 kh\u00f4ng mang l\u1ea1i nhi\u1ec1u gi\u00e1 tr\u1ecb quy\u1ebft \u0111\u1ecbnh.<\/p>\n\n\n\n

S\u01a1 \u0111\u1ed3 x\u01b0\u01a1ng c\u00e1 r\u1ea5t h\u1eefu \u00edch khi nh\u00f3m c\u1ea7n nhanh ch\u00f3ng s\u1eafp x\u1ebfp c\u00e1c nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 x\u1ea3y ra theo c\u00e1c danh m\u1ee5c nh\u01b0 Con ng\u01b0\u1eddi, M\u00e1y m\u00f3c, Ph\u01b0\u01a1ng ph\u00e1p, V\u1eadt li\u1ec7u, \u0110o l\u01b0\u1eddng v\u00e0 M\u00f4i tr\u01b0\u1eddng. Ch\u00fang ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong giai \u0111o\u1ea1n \u0111\u1ed9ng n\u00e3o ban \u0111\u1ea7u \u0111\u1ed1i v\u1edbi c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 l\u1ed7i b\u00e1m d\u00ednh s\u01a1n, n\u01a1i nh\u00f3m mu\u1ed1n x\u00e1c \u0111\u1ecbnh c\u00e1c nguy\u00ean nh\u00e2n ti\u1ec1m n\u0103ng tr\u01b0\u1edbc khi th\u1eed nghi\u1ec7m. Nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 s\u01a1 \u0111\u1ed3 x\u01b0\u01a1ng c\u00e1 th\u1ec3 hi\u1ec7n c\u00e1c danh m\u1ee5c ch\u1ee9 kh\u00f4ng ph\u1ea3i logic, trong khi ph\u01b0\u01a1ng ph\u00e1p 5 Why th\u1ec3 hi\u1ec7n m\u1ed9t chu\u1ed7i ch\u1ee9 kh\u00f4ng ph\u1ea3i c\u00e1c t\u01b0\u01a1ng t\u00e1c ph\u00e2n nh\u00e1nh.<\/p>\n\n\n\n

<\/span>H\u01b0\u1edbng d\u1eabn tuy\u1ec3n ch\u1ecdn th\u1ef1c ti\u1ec5n d\u00e0nh cho c\u00e1c \u0111\u1ed9i ng\u0169 s\u1ea3n xu\u1ea5t<\/span><\/h3>\n\n\n\n

N\u1ebfu v\u1ea5n \u0111\u1ec1 mang t\u00ednh t\u1ed5ng qu\u00e1t, c\u1ea7n ph\u00f2ng ng\u1eeba v\u00e0 v\u1eabn \u0111ang trong giai \u0111o\u1ea1n l\u1eadp k\u1ebf ho\u1ea1ch, h\u00e3y b\u1eaft \u0111\u1ea7u v\u1edbi FMEA. N\u1ebfu v\u1ea5n \u0111\u1ec1 c\u1ee5 th\u1ec3, nghi\u00eam tr\u1ecdng v\u00e0 li\u00ean quan \u0111\u1ebfn nhi\u1ec1u t\u1ed5 h\u1ee3p nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 x\u1ea3y ra, h\u00e3y s\u1eed d\u1ee5ng FTA. N\u1ebfu v\u1ea5n \u0111\u1ec1 c\u1ee5c b\u1ed9 v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng do m\u1ed9t chu\u1ed7i nguy\u00ean nh\u00e2n ch\u1ee7 \u0111\u1ea1o g\u00e2y ra, ph\u01b0\u01a1ng ph\u00e1p 5 Why th\u01b0\u1eddng l\u00e0 \u0111\u1ee7, trong khi s\u01a1 \u0111\u1ed3 x\u01b0\u01a1ng c\u00e1 l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t khi b\u1ea1n c\u1ea7n nhanh ch\u00f3ng l\u1eadp danh s\u00e1ch nguy\u00ean nh\u00e2n \u0111a ch\u1ee9c n\u0103ng tr\u01b0\u1edbc khi thu h\u1eb9p ph\u1ea1m vi.<\/p>\n\n\n\n

Tr\u00ean th\u1ef1c t\u1ebf, c\u00e1c ph\u01b0\u01a1ng ph\u00e1p n\u00e0y th\u01b0\u1eddng b\u1ed5 sung cho nhau h\u01a1n l\u00e0 c\u1ea1nh tranh. M\u1ed9t nh\u00f3m c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 x\u01b0\u01a1ng c\u00e1 \u0111\u1ec3 thu th\u1eadp gi\u1ea3 thuy\u1ebft, ph\u01b0\u01a1ng ph\u00e1p 5 c\u00e2u h\u1ecfi "T\u1ea1i sao" \u0111\u1ec3 ki\u1ec3m tra m\u1ed9t chu\u1ed7i s\u1ef1 ki\u1ec7n c\u00f3 kh\u1ea3 n\u0103ng x\u1ea3y ra, ph\u00e2n t\u00edch c\u00e2y quy\u1ebft \u0111\u1ecbnh (FTA) \u0111\u1ec3 ph\u00e2n t\u00edch s\u00e2u m\u1ed9t s\u1ef1 ki\u1ec7n quan tr\u1ecdng v\u00e0 sau \u0111\u00f3 s\u1eed d\u1ee5ng ph\u00e2n t\u00edch ch\u1ebf \u0111\u1ed9 l\u1ed7i v\u00e0 t\u00e1c \u0111\u1ed9ng (FMEA) \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng ki\u1ec3m so\u00e1t tr\u00ean c\u00e1c quy tr\u00ecnh t\u01b0\u01a1ng t\u1ef1. C\u00e2u h\u1ecfi \u0111\u00fang kh\u00f4ng ph\u1ea3i l\u00e0 ph\u01b0\u01a1ng ph\u00e1p n\u00e0o t\u1ed1t nh\u1ea5t v\u1ec1 t\u1ed5ng th\u1ec3, m\u00e0 l\u00e0 ph\u01b0\u01a1ng ph\u00e1p n\u00e0o ph\u00f9 h\u1ee3p nh\u1ea5t v\u1edbi ph\u1ea1m vi, th\u1eddi gian, b\u1eb1ng ch\u1ee9ng v\u00e0 quy\u1ebft \u0111\u1ecbnh b\u1ea1n c\u1ea7n \u0111\u01b0a ra.<\/p>\n\n\n\n

<\/span>C\u00e1ch v\u1eadn d\u1ee5ng ph\u00e2n t\u00edch c\u00e2y l\u1ed7i v\u00e0o quy tr\u00ecnh l\u00e0m vi\u1ec7c k\u1ef9 thu\u1eadt s\u1ed1<\/span><\/h2>\n\n\n\n

<\/span>V\u00ec sao FTA th\u01b0\u1eddng g\u1eb7p tr\u1ee5c tr\u1eb7c sau khi ph\u00e2n t\u00edch?<\/span><\/h3>\n\n\n\n

Nhi\u1ec1u nh\u00f3m c\u1ea3m th\u1ea5y tho\u1ea3i m\u00e1i v\u1edbi c\u00e1ch x\u00e2y d\u1ef1ng m\u1ed9t ph\u00e2n t\u00edch c\u00e2y l\u1ed7i<\/strong><\/a> S\u01a1 \u0111\u1ed3 c\u00f3 th\u1ec3 minh h\u1ecda v\u1ea5n \u0111\u1ec1, nh\u01b0ng quy tr\u00ecnh th\u01b0\u1eddng m\u1ea5t ki\u1ec3m so\u00e1t sau khi h\u1ed9i th\u1ea3o k\u1ebft th\u00fac. Nguy\u00ean nh\u00e2n \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong c\u00e1c t\u1ec7p PowerPoint, c\u00e1c h\u00e0nh \u0111\u1ed9ng \u0111\u01b0\u1ee3c sao ch\u00e9p v\u00e0o b\u1ea3ng t\u00ednh, v\u00e0 tr\u00e1ch nhi\u1ec7m tr\u1edf n\u00ean kh\u00f4ng r\u00f5 r\u00e0ng gi\u1eefa c\u00e1c b\u1ed9 ph\u1eadn ch\u1ea5t l\u01b0\u1ee3ng, b\u1ea3o tr\u00ec, s\u1ea3n xu\u1ea5t v\u00e0 an to\u00e0n lao \u0111\u1ed9ng. Tr\u00ean th\u1ef1c t\u1ebf, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 logic \u0111\u1eb1ng sau ph\u00e2n t\u00edch b\u1ecb t\u00e1ch r\u1eddi kh\u1ecfi nh\u1eefng ng\u01b0\u1eddi ph\u1ea3i th\u1ef1c hi\u1ec7n vi\u1ec7c ng\u0103n ch\u1eb7n, x\u00e1c minh v\u00e0 h\u00e0nh \u0111\u1ed9ng kh\u1eafc ph\u1ee5c l\u00e2u d\u00e0i.<\/p>\n\n\n\n

Kho\u1ea3ng c\u00e1ch n\u00e0y r\u1ea5t quan tr\u1ecdng v\u00ec gi\u00e1 tr\u1ecb c\u1ee7a Ph\u00e2n t\u00edch C\u00e2y S\u1ef1 c\u1ed1 (FTA) kh\u00f4ng ch\u1ec9 n\u1eb1m \u1edf s\u01a1 \u0111\u1ed3. Gi\u00e1 tr\u1ecb n\u1eb1m \u1edf kh\u1ea3 n\u0103ng chuy\u1ec3n \u0111\u1ed5i m\u1ed9t chu\u1ed7i s\u1ef1 c\u1ed1 \u0111a nguy\u00ean nh\u00e2n th\u00e0nh c\u00e1c quy\u1ebft \u0111\u1ecbnh c\u00f3 th\u1ec3 ki\u1ec3m ch\u1ee9ng, c\u00e1c nhi\u1ec7m v\u1ee5 \u0111\u01b0\u1ee3c giao v\u00e0 vi\u1ec7c kh\u1eafc ph\u1ee5c \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c minh. \u0110\u1ed1i v\u1edbi c\u00e1c k\u1ef9 s\u01b0 \u0111\u1ed9 tin c\u1eady v\u00e0 c\u00e1c nh\u00e0 qu\u1ea3n l\u00fd ch\u1ea5t l\u01b0\u1ee3ng, \u0111i\u1ec1u \u0111\u00f3 \u0111\u00f2i h\u1ecfi m\u1ed9t h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 l\u01b0u gi\u1eef b\u1eb1ng ch\u1ee9ng, chuy\u1ec3n ti\u1ebfp ph\u00ea duy\u1ec7t v\u00e0 theo d\u00f5i xem c\u00e1c nguy\u00ean nh\u00e2n \u0111\u00e3 x\u00e1c \u0111\u1ecbnh c\u00f3 th\u1ef1c s\u1ef1 \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf hay kh\u00f4ng.<\/p>\n\n\n\n

<\/span>Quy tr\u00ecnh l\u00e0m vi\u1ec7c FTA k\u1ef9 thu\u1eadt s\u1ed1 c\u1ea7n bao g\u1ed3m nh\u1eefng g\u00ec?<\/span><\/h3>\n\n\n\n

M\u1ed9t quy tr\u00ecnh k\u1ef9 thu\u1eadt s\u1ed1 kh\u1ea3 thi c\u1ea7n b\u1eaft \u0111\u1ea7u b\u1eb1ng... h\u1ed3 s\u01a1 \u0111i\u1ec1u tra c\u00f3 c\u1ea5u tr\u00fac<\/strong>, \u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t t\u00e0i li\u1ec7u tr\u1ed1ng. B\u1ea3n ghi \u0111\u00f3 th\u01b0\u1eddng bao g\u1ed3m m\u00f4 t\u1ea3 s\u1ef1 c\u1ed1, s\u1ea3n ph\u1ea9m ho\u1eb7c t\u00e0i s\u1ea3n b\u1ecb \u1ea3nh h\u01b0\u1edfng, s\u1ef1 ki\u1ec7n ch\u00ednh, c\u00e1c nh\u00e1nh nguy\u00ean nh\u00e2n nghi ng\u1edd, bi\u1ec7n ph\u00e1p ng\u0103n ch\u1eb7n ngay l\u1eadp t\u1ee9c v\u00e0 c\u00e1c b\u1eb1ng ch\u1ee9ng li\u00ean quan nh\u01b0 \u1ea3nh, d\u1eef li\u1ec7u ki\u1ec3m tra, t\u00e0i li\u1ec7u c\u1ee7a nh\u00e0 cung c\u1ea5p ho\u1eb7c nh\u1eadt k\u00fd b\u1ea3o tr\u00ec. N\u1ebfu nh\u00f3m c\u1ee7a b\u1ea1n s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p 8D ho\u1eb7c 5 Why c\u00f9ng v\u1edbi FTA, quy tr\u00ecnh l\u00e0m vi\u1ec7c c\u1ea7n cho ph\u00e9p b\u1ea1n c\u1ea5u h\u00ecnh c\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111\u00f3 m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i s\u1eed d\u1ee5ng m\u1ed9t c\u00f4ng c\u1ee5 ri\u00eang bi\u1ec7t cho m\u1ed7i ph\u01b0\u01a1ng ph\u00e1p.<\/p>\n\n\n\n

Y\u00eau c\u1ea7u ti\u1ebfp theo l\u00e0 quy\u1ec1n s\u1edf h\u1eefu ki\u1ec3m so\u00e1t<\/strong>. M\u1ed7i nh\u00e1nh nguy\u00ean nh\u00e2n ho\u1eb7c h\u00e0nh \u0111\u1ed9ng kh\u1eafc ph\u1ee5c c\u1ea7n c\u00f3 ng\u01b0\u1eddi ch\u1ecbu tr\u00e1ch nhi\u1ec7m c\u1ee5 th\u1ec3, ng\u00e0y \u0111\u1ebfn h\u1ea1n, b\u01b0\u1edbc ph\u00ea duy\u1ec7t v\u00e0 l\u1ecbch s\u1eed tr\u1ea1ng th\u00e1i, \u0111\u1ec3 c\u00e1c nh\u00f3m c\u00f3 th\u1ec3 xem h\u00e0nh \u0111\u1ed9ng \u0111\u00f3 \u0111ang ch\u1edd x\u1eed l\u00fd, \u0111\u00e3 th\u1ef1c hi\u1ec7n hay \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c minh. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch trong ph\u00e2n t\u00edch c\u00e2y l\u1ed7i trong c\u00e1c v\u00ed d\u1ee5 s\u1ea3n xu\u1ea5t, n\u01a1i nhi\u1ec1u b\u1ed9 ph\u1eadn c\u00f9ng \u0111\u00f3ng g\u00f3p v\u00e0o m\u1ed9t s\u1ef1 ki\u1ec7n v\u00e0 s\u1ef1 ch\u1eadm tr\u1ec5 th\u01b0\u1eddng x\u1ea3y ra \u1edf c\u00e1c \u0111i\u1ec3m chuy\u1ec3n giao ch\u1ee9 kh\u00f4ng ph\u1ea3i trong ch\u00ednh qu\u00e1 tr\u00ecnh ph\u00e2n t\u00edch.<\/p>\n\n\n\n

V\u1edbi Jodoo<\/strong><\/a>, C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 x\u00e2y d\u1ef1ng quy tr\u00ecnh n\u00e0y th\u00e0nh m\u1ed9t quy tr\u00ecnh l\u00e0m vi\u1ec7c li\u1ec1n m\u1ea1ch kh\u00f4ng c\u1ea7n l\u1eadp tr\u00ecnh, thay v\u00ec m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c t\u1ec7p tin r\u1eddi r\u1ea1c. Nh\u00f3m QA c\u00f3 th\u1ec3 c\u1ea5u h\u00ecnh c\u00e1c bi\u1ec3u m\u1eabu ti\u1ebfp nh\u1eadn RCA, 8D<\/strong> ho\u1eb7c M\u1eabu 5-T\u1ea1i sao<\/strong>, Bao g\u1ed3m c\u00e1c tr\u01b0\u1eddng b\u1eb1ng ch\u1ee9ng cho t\u1ec7p \u0111\u00ednh k\u00e8m v\u00e0 \u1ea3nh, c\u00e1c b\u01b0\u1edbc ph\u00ea duy\u1ec7t cho vi\u1ec7c xem x\u00e9t k\u1ef9 thu\u1eadt v\u00e0 l\u1eddi nh\u1eafc t\u1ef1 \u0111\u1ed9ng cho c\u00e1c h\u00e0nh \u0111\u1ed9ng kh\u1eafc ph\u1ee5c qu\u00e1 h\u1ea1n. V\u00ec c\u00e1c bi\u1ec3u m\u1eabu, logic quy tr\u00ecnh l\u00e0m vi\u1ec7c v\u00e0 c\u1ea5u tr\u00fac d\u1eef li\u1ec7u \u0111\u1ec1u n\u1eb1m tr\u00ean c\u00f9ng m\u1ed9t n\u1ec1n t\u1ea3ng, n\u00ean h\u1ed3 s\u01a1 \u0111i\u1ec1u tra lu\u00f4n \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi vi\u1ec7c th\u1ef1c thi h\u00e0nh \u0111\u1ed9ng thay v\u00ec ph\u1ea3i \u0111\u01b0\u1ee3c chuy\u1ec3n th\u1ee7 c\u00f4ng gi\u1eefa c\u00e1c h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n

<\/span>K\u1ebft n\u1ed1i \u0111i\u1ec1u tra, CAPA<\/strong>, v\u00e0 X\u00e1c minh<\/span><\/h3>\n\n\n\n

L\u1ee3i th\u1ebf v\u1eadn h\u00e0nh l\u1edbn nh\u1ea5t \u0111\u1ebfn t\u1eeb vi\u1ec7c li\u00ean k\u1ebft ph\u00e2n t\u00edch v\u1edbi vi\u1ec7c ho\u00e0n t\u1ea5t giao d\u1ecbch. Trong Jodoo<\/strong><\/a>, M\u1ed9t b\u1ea3n ghi \u0111i\u1ec1u tra c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u1ea1o t\u1ef1 \u0111\u1ed9ng. h\u00e0nh \u0111\u1ed9ng kh\u1eafc ph\u1ee5c<\/strong> Ph\u00e2n c\u00f4ng nhi\u1ec7m v\u1ee5, chuy\u1ec3n ch\u00fang \u0111\u1ebfn c\u00e1c ch\u1ee9c n\u0103ng kh\u00e1c nhau v\u00e0 c\u1eadp nh\u1eadt b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n tr\u1ea1ng th\u00e1i chung cho ng\u01b0\u1eddi qu\u1ea3n l\u00fd. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t chu\u1ed7i minh b\u1ea1ch t\u1eeb gi\u1ea3 thuy\u1ebft nguy\u00ean nh\u00e2n g\u1ed1c \u0111\u1ebfn h\u00e0nh \u0111\u1ed9ng \u0111\u00e3 th\u1ef1c hi\u1ec7n v\u00e0 ki\u1ec3m tra hi\u1ec7u qu\u1ea3, \u0111i\u1ec1u th\u01b0\u1eddng thi\u1ebfu trong c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh ph\u00e2n t\u00edch nguy\u00ean nh\u00e2n g\u1ed1c th\u1ee7 c\u00f4ng.<\/p>\n\n\n\n

\"Quy<\/figure>\n\n\n\n

C\u1ea5u tr\u00fac n\u00e0y c\u0169ng gi\u00fap c\u00e1c nh\u00f3m tr\u00e1nh s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p sai v\u00e0o th\u1eddi \u0111i\u1ec3m sai. N\u1ebfu m\u1ed9t v\u1ea5n \u0111\u1ec1 b\u1eaft \u0111\u1ea7u ch\u1ec9 l\u00e0 m\u1ed9t sai l\u1ec7ch \u0111\u01a1n gi\u1ea3n, b\u1ea1n c\u00f3 th\u1ec3 kh\u00f4ng c\u1ea7n \u0111\u1ebfn FTA \u0111\u1ea7y \u0111\u1ee7; n\u1ebfu n\u00f3 m\u1edf r\u1ed9ng th\u00e0nh m\u1ed9t chu\u1ed7i l\u1ed7i li\u00ean ch\u1ee9c n\u0103ng, quy tr\u00ecnh l\u00e0m vi\u1ec7c c\u00f3 th\u1ec3 n\u00e2ng n\u00f3 l\u00ean th\u00e0nh m\u1ed9t cu\u1ed9c \u0111i\u1ec1u tra s\u00e2u h\u01a1n v\u1edbi c\u00e1c b\u01b0\u1edbc ph\u00ea duy\u1ec7t v\u00e0 x\u00e1c minh b\u1ed5 sung. \u0110i\u1ec1u \u0111\u00f3 gi\u00fap vi\u1ec7c th\u1ef1c hi\u1ec7n tr\u1edf n\u00ean k\u1ef7 lu\u1eadt h\u01a1n m\u00e0 kh\u00f4ng bi\u1ebfn m\u1ecdi v\u1ea5n \u0111\u1ec1 th\u00e0nh m\u1ed9t quy tr\u00ecnh ph\u1ee9c t\u1ea1p, \u0111\u00e2y l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 th\u1ef1c ti\u1ec5n quan tr\u1ecdng c\u1ea7n xem x\u00e9t khi quy\u1ebft \u0111\u1ecbnh khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng FTA so v\u1edbi FMEA ho\u1eb7c c\u00e1c c\u00f4ng c\u1ee5 \u0111\u01a1n gi\u1ea3n h\u01a1n.<\/p>\n\n\n\n

<\/span>K\u1ebft lu\u1eadn: Bi\u1ebfn ph\u00e2n t\u00edch c\u00e2y l\u1ed7i th\u00e0nh h\u00e0nh \u0111\u1ed9ng kh\u1eafc ph\u1ee5c c\u00f3 th\u1ec3 l\u1eb7p l\u1ea1i.<\/span><\/h2>\n\n\n\n

Ph\u00e2n t\u00edch c\u00e2y l\u1ed7i<\/a><\/strong> C\u00f4ng c\u1ee5 n\u00e0y ph\u00e1t huy hi\u1ec7u qu\u1ea3 t\u1ed1t nh\u1ea5t khi b\u1ea1n s\u1eed d\u1ee5ng n\u00f3 \u0111\u00fang m\u1ee5c \u0111\u00edch: ph\u00e2n t\u00edch m\u1ed9t s\u1ef1 c\u1ed1 nghi\u00eam tr\u1ecdng, s\u1ef1 ki\u1ec7n an to\u00e0n ho\u1eb7c v\u1ea5n \u0111\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng th\u00e0nh m\u1ed9t chu\u1ed7i nguy\u00ean nh\u00e2n r\u00f5 r\u00e0ng. Gi\u00e1 tr\u1ecb c\u1ee7a n\u00f3 m\u1ea1nh nh\u1ea5t khi nhi\u1ec1u \u0111i\u1ec1u ki\u1ec7n t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau, n\u01a1i c\u00e1c c\u00f4ng c\u1ee5 \u0111\u01a1n gi\u1ea3n h\u01a1n nh\u01b0 ph\u01b0\u01a1ng ph\u00e1p 5 Why c\u00f3 th\u1ec3 b\u1ecf s\u00f3t to\u00e0n b\u1ed9 logic c\u1ee7a v\u1ea5n \u0111\u1ec1. Tr\u00ean th\u1ef1c t\u1ebf, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 b\u1eaft \u0111\u1ea7u v\u1edbi m\u1ed9t s\u1ef1 ki\u1ec7n ch\u00ednh \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh r\u00f5 r\u00e0ng, l\u1eadp b\u1ea3n \u0111\u1ed3 c\u00e1c \u0111\u01b0\u1eddng d\u1eabn nh\u00e2n qu\u1ea3 v\u1edbi c\u00e1c c\u1ed5ng logic ph\u00f9 h\u1ee3p v\u00e0 ch\u1ecdn FTA khi r\u1ee7i ro \u0111\u1ee7 cao \u0111\u1ec3 bi\u1ec7n minh cho m\u1ed9t ph\u00e2n t\u00edch c\u00f3 c\u1ea5u tr\u00fac h\u01a1n.<\/p>\n\n\n\n

\u0110i\u1ec1u quan tr\u1ecdng kh\u00f4ng k\u00e9m l\u00e0 vi\u1ec7c ph\u00e2n t\u00edch kh\u00f4ng n\u00ean d\u1eebng l\u1ea1i \u1edf s\u01a1 \u0111\u1ed3. L\u1ee3i \u00edch ho\u1ea1t \u0111\u1ed9ng th\u1ef1c s\u1ef1 \u0111\u1ebfn khi c\u00e1c ph\u00e1t hi\u1ec7n \u0111\u01b0\u1ee3c ph\u00e2n c\u00f4ng, ph\u00ea duy\u1ec7t, theo d\u00f5i v\u00e0 x\u00e1c minh th\u00f4ng qua h\u00e0nh \u0111\u1ed9ng kh\u1eafc ph\u1ee5c, \u0111\u1eb7c bi\u1ec7t l\u00e0 gi\u1eefa c\u00e1c nh\u00f3m b\u1ea3o tr\u00ec, ch\u1ea5t l\u01b0\u1ee3ng, k\u1ef9 thu\u1eadt v\u00e0 an to\u00e0n lao \u0111\u1ed9ng. \u0110\u00f3 l\u00e0 n\u01a1i m\u00e0 nhi\u1ec1u nh\u00e0 s\u1ea3n xu\u1ea5t g\u1eb7p kh\u00f3 kh\u0103n n\u1ebfu FTA v\u1eabn b\u1ecb m\u1eafc k\u1eb9t trong c\u00e1c t\u00e0i li\u1ec7u t\u0129nh, b\u1ea3ng t\u00ednh r\u1eddi r\u1ea1c ho\u1eb7c k\u1ebft qu\u1ea3 h\u1ed9i th\u1ea3o \u0111\u01a1n l\u1ebb.<\/p>\n\n\n\n

N\u1ebfu b\u1ea1n mu\u1ed1n chu\u1ea9n h\u00f3a quy tr\u00ecnh RCA, 8D v\u00e0 h\u00e0nh \u0111\u1ed9ng kh\u1eafc ph\u1ee5c sau khi ph\u00e2n t\u00edch c\u00e2y l\u1ed7i, Jodoo cung c\u1ea5p cho b\u1ea1n m\u1ed9t c\u00e1ch th\u1ef1c ti\u1ec5n \u0111\u1ec3 l\u00e0m \u0111i\u1ec1u \u0111\u00f3. L\u00e0 m\u1ed9t n\u1ec1n t\u1ea3ng s\u1ea3n xu\u1ea5t tinh g\u1ecdn kh\u00f4ng c\u1ea7n l\u1eadp tr\u00ecnh, Jodoo<\/strong><\/a> Gi\u00fap c\u00e1c nh\u00f3m s\u1ed1 h\u00f3a c\u00e1c bi\u1ec3u m\u1eabu \u0111i\u1ec1u tra, quy\u1ec1n s\u1edf h\u1eefu h\u00e0nh \u0111\u1ed9ng, ph\u00ea duy\u1ec7t v\u00e0 theo d\u00f5i k\u1ebft th\u00fac trong m\u1ed9t h\u1ec7 th\u1ed1ng duy nh\u1ea5t. B\u1ea1n c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u d\u00f9ng th\u1eed mi\u1ec5n ph\u00ed<\/a><\/strong> ho\u1eb7c \u0110\u1eb7t l\u1ecbch d\u00f9ng th\u1eed<\/a><\/strong> \u0111\u1ec3 xem n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi quy tr\u00ecnh s\u1ea3n xu\u1ea5t c\u1ee7a nh\u00e0 m\u00e1y b\u1ea1n nh\u01b0 th\u1ebf n\u00e0o.<\/p>","protected":false},"excerpt":{"rendered":"

T\u00ecm hi\u1ec3u v\u1ec1 Ph\u00e2n t\u00edch C\u00e2y S\u1ef1 c\u1ed1 (FTA) \u0111\u1ec3 \u0111i\u1ec1u tra nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 v\u00e0 v\u1ea5n \u0111\u1ec1 an to\u00e0n trong s\u1ea3n xu\u1ea5t. Xem khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng v\u00e0 b\u1eaft \u0111\u1ea7u d\u00f9ng th\u1eed mi\u1ec5n ph\u00ed v\u1edbi Jodoo.<\/p>","protected":false},"author":1,"featured_media":8493,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-8443","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-solutions"],"blocksy_meta":[],"yoast_head":"\nFault Tree Analysis (FTA): How to Use It for Root Cause and Safety Risk Analysis - Jodoo Blog<\/title>\n<meta name=\"description\" content=\"Learn Fault Tree Analysis (FTA) for manufacturing root cause and safety investigations. 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