Accession Number:

AD0607652

Title:

RELIABILITY MEASUREMENT FOR LONG LIFE SYSTEMS,

Descriptive Note:

Corporate Author:

GENERAL ELECTRIC CO PHILADELPHIA PA MISSILE AND SPACE DIV

Personal Author(s):

• Fritz,E. L.

Report Date:

1961-03-28

Pagination or Media Count:

31.0

Abstract:

It is shown that the exponential distribution has severe limitations for predicting long life. The Weibull Distribution with beta 12 is shown to give more realistic results. Not only, are the estimates closer to the actual values, but the latter model is less sensitive to deviations in the actual distribution from the mathematical model. Predicting reliability of a long life system from limited test results gives rise to a special class of problems. To a large extent, these problems can be alleviated by using the Weibull beta 12 distribution coupled with a correction for limited testing. Author

Descriptors:

• *RELIABILITY
• *ARTIFICIAL SATELLITES
• *GUIDED MISSILES
• MATHEMATICAL MODELS
• LIFE EXPECTANCY(SERVICE LIFE)
• LIFE EXPECTANCY(SERVICE LIFE)
• FAILURE(MECHANICS)
• MATHEMATICAL PREDICTION

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE