Transcription of MTBF（平均故障間隔） の解説と規準 - apc.com
1 mtbf White Paper #78 2004 American Power Conversion. All rights reserved. 2004-0 2 ( mtbf : Mean Time Between Failure) mtbf mtbf mtbf 2004 American Power Conversion. All rights reserved. 2004-0 3 60 mtbf 20 mtbf IT NCPI mtbf mtbf ?
2 ? mtbf mtbf mtbf 2 1) 1 2) 2 2 1 RAID RAID 1) 2) 2 UPS UPS UPS UPS 1 2) 2 mtbf 2 1 IEC-50 International Electorotechnical Commission ( ) 2 IEC-50 International Electorotechnical Commission ( ) 2004 American Power Conversion.
3 All rights reserved. 2004-0 4 ? ? ? LED ( ) ? ? ? mtbf mtbf mtbf mtbf mtbf MTTR mtbf mtbf [IEEE 90] 3 ( ) [IEEE 90] 2004 American Power Conversion.
4 All rights reserved. 2004-0 5 ( 10 ) IT mtbf mtbf ( ) mtbf 1 =MTBFe 1 mtbf 100 mtbf 100 mtbf mtbf ( mtbf )
5 ( ) mtbf 25 50 75-80 3 IEEE90 The Institute of Electrical and Electronics Engineers 25 50 1 ( ) 50 X 1 = 50 1 625 ( ) 625 50 = / mtbf 1 = 800 800 25 mtbf mtbf 2004 American Power Conversion. All rights reserved. 2004-0 6 25 mtbf ?
6 80 800 ? 2 mtbf ? 80 mtbf ( ) ? UPS 10 15 mtbf MTTR MTTR(Mean Time To Repair: ) mtbf MTTR 2 MTTR MTTR 2 mtbf MTTR mtbf MTTR )(MTTRMTBFMTBF+= 2 1 2 mtbf 1 2004 American Power Conversion.
7 All rights reserved. 2004-0 70 1 mtbf mtbf mtbf mtbf mtbf mtbf mtbf mtbf Von Braun Eric Pieruschka 1940 V-1 Von Braun Pieruschka
8 NASA mtbf 2004 American Power Conversion. All rights reserved. 2004-0 8 MIL-HDBK 217 1965 Military Handbook 217 2 Mil Standard 217 217 2 ( ) ( ) 217 ( )
9 217 1996 MIL-HDBK-217 4 217 217 ( ) ( ) Bellcore Communications Research 217 ( ) 1985 1997 12 TR-322 6 SAIC 1997 2001 5 SR-322 1 217 4 1996 IEEE Transactions on Components, Packaging, and Manufacturing Technology.
10 Part A Vol. 19 No. 2 277 278 Cushing M. Krolewski J. Stadterman T. Hum B. Army Reliability Standardization Improvement Policy and Its Impact 2004 American Power Conversion. All rights reserved. 2004-0 9 HRD5 HRD5 (Handbook for Reliability Data for Electronic Components) HRD5 British Telecom 217 RBD ( ) RBD RBD UPS mtbf MTTR FMEA / FMECA FMEA ( ) FMECA ( )
