1、 KSKSKSKS SKSKSKS KSKSKS SKSKS KSKS SKS KS 2006 6 2 http:/www.kats.go.kr KS A 5606 KS A 5606： 2006 (2012 )A 5606： 2006 : ( ) ( ) ( ) : (http:/www.standard.go.kr) ： ：2006 6 2 ：2012 12 29 2012-837 ： ： ( 02-509-7294) (http:/www.kats.go.kr). 10 5 , . ICS 21.020 KS A 5606： 2006(2012 )Design of durability
2、 test for mechanical components . , . , . (durability test/endurance test) , . , , . , . , . . , , , , . . , , , , . 1. , , , , , , . . (accelerated life test) , . , , , , A 5606： 2006 2 . , . , , , , , , , . 2. . . KS A 3004 KS A IEC 60300 3 2 3： 2： KS A IEC 60300 3 5 3： 5： KS A IEC 60812 (FMEA) KS
3、 A IEC 61710 KS C 6032 ASTM E1049 Standard Practices for Counting in Fatigue Analysis BS EN 12663： 2000 Railway Applications, Structural Requirements of Railway Vehicle Bodies 3. . 3.1 (item) , , , , , , , . . 3.2 (performance) , , . 3.3 (failure) . . 3.4 (life) , , , (on-off) . 3.5 (durability test
4、, endurance test) 1. ( ) ( ) . 2. (accelerated life test) (accelerated degradation test) . A 5606： 2006 3 3.6 / (useful life) (failure intensity) , 3.7 (target life) 1. . 2. , MTTF, B10 . 3.8 (duty cycle) ( ) 1. . 2. . 3.9 (equivalent damage) 1. , , . 2. . , . , , , (miner) . 3.10 /(usage) / 1. 1 00
5、0 / , 12 000 km/ , 5 / . 30 %, 60 % 10 % 1 70 %, 2 30 %, 85 %, 15 % . 2. . 3.11 (failure mechanism) , , , , (random) (wearout) . 3.12 (failure mode) (symptom) 1. , , , , , , , . 2. . , , . . (valve seal) . 3.13 (time compressed test) A 5606： 2006 4 1. . 2. . 3. 60 Hz 412 Hz , , TV . 3.14 (accelerate
6、d life test) , . 4. ( , , ) , . . 1 . 1 4.1 , . . a) b) c) . (proving ground) 90 % MTTF 5 000 95 % B10 800 70 % MTBF 2 000 90 % B5 10 000 km 70 % MTTF 2 500 ( , , )4.14.24.34.45.A 5606： 2006 5 1. ( ) , ( ) . . 2. . . 4.1.1 . . a) . b) . c) ( ) , , . . ( , , , , , , ) . 4.1.2 , . (confidence level) .
7、 95 % 90 % , , 60 % . 4.1.3 B10( B5, B1) , MTBF, MTTF . , , , . MTBF . MTTF . (warranty policy) 10 %( 5 % 1 %) , B10( B5, B1) . 4.2 / . . a) . / , / , . b) FMEA RPN(Risk Priority Number) / , . RPN , RPN . RPN , RPN A 5606： 2006 6 / . / , . . , . . 4.3 , , , , (load) (damage) , ( ) ( ) . (load histor
8、y) . , . , . , . , . 4.3.1 , ( ) , . , 100 1 99 1/100 1 % . 1 % 10 000 , 2 % 5 000 . , 0.5 2.0 % . 2 tL ( ), tU ( ) . (1) . totalLULLttNttt =+ (1) 2 2 tU 2 3 . (tU tU)N( , N ) ttotaltL tU tLtUtL tUtLtU A 5606： 2006 7 . 3 2 1. (time reduction) (time compression) . 2. , , B . 4.3.2 . , , , . . , . 1.
9、, , , , . , , ( , , ) . 2. , . , (over design) . 3. , . , . (field load history) . 4.3.2.1 . , . , , . ttotaltL tU A 5606： 2006 8 . , . . C . 4.3.2.2 4.4 (equivalent damage cycle) . ( , , , , ) , ( , , , , ) . . D . 4.3.2.2.1 (usage) , . , . . , ( usage rate .), , ( ) . ( 10 000 km/ 1 500 / ). , . a) ( , ) A, B C , 50 %, 30 % 20 % 50 %, 30 % 20 % . b) () ( , , ) ( , ) A, B, C 40 %, 40 %, 20 % , 40 %, 40 %, 20 % . c) , A 5606： 2006 9 4.3.2.2.2 1 , . . 4.4 , . A, B, C , 4 a), b), c)
