DATA COLLECTION FOR NONELECTRONIC RELIABILITY HANDBOOK (NEDCO I AND NEDCO II). VOLUME 1
Abstract
This study addressed itself to the location, collection, classification, organization and analysis of nonelectronic part reliability information into a form from which it can be integrated into a Nonelectronic Reliability Handbook. The collection phase resulted in 38,761 line entries of failure data on approximately 600 different nonelectronic part types. These data, organized in logical groups are presented in the appendix of this report. The Data Analysis took several forms. Failure information on the same and similar part types was combined to yield overall failure rates for each of several environmental applications. Conversion factors were calculated to reflect the effect of varying severity of environments on part life. Failure rate versus stress relationships were sought but the data collected were not complete enough to yield useful relationships. Most of the failure information collected contained total part operating time and the number of observed failures. Since it was established that the statistical methods applicable to the reliability of nonelectronic parts must differ from those used traditionally for electronic parts, prediction models applicable to nonelectronic parts were sought. Three models showing promise are investigated in the Data Analysis Section and are compared with field data collected during the study. In each case more verification is required but the models included appear to be useful contributions to the field of nonelectronic part reliability.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1968
- Accession Number
- AD0841106
Entities
People
- William Yurkowsky
Organizations
- Hughes Aircraft Company