Accession Number : AD0745795

Title :   Estimation of Reliability after Corrective Action on Observed Failure Modes,

Corporate Author : SPECIAL PROJECTS OFFICE (NAVY) WASHINGTON D C

Personal Author(s) : Corcoran,W. J. ; Weingarten,Harry

Report Date : JUN 1962

Pagination or Media Count : 35

Abstract : The paper is concerned with a problem that may arise in the final stage of development of an expensive item: The item has been developed to a point where it is hoped that its performance and reliability are suitable for its intended application, and it is then subjected to a series of N tests to demonstrate this performance and reliability. When the N tests have been completed only S successes have been achieved, and possibly the nominal reliability, R = S/N, may be considered unsatisfactory. However, the causes of some or all of the N-S failures have been discovered and corrective action has been taken to eliminate the corresponding failure modes. Now one would like to 'take credit' for the improvement in reliability that was achieved by this corrective action. (Author)

Descriptors :   (*RELIABILITY, *STATISTICAL ANALYSIS), FAILURE, MAINTENANCE, CONFIDENCE LIMITS, STATISTICAL TESTS, DISTRIBUTION FUNCTIONS, MONTE CARLO METHOD, PROBABILITY

Subject Categories : Statistics and Probability
      Mfg & Industrial Eng & Control of Product Sys

Distribution Statement : APPROVED FOR PUBLIC RELEASE