DocumentCode :
2404495
Title :
An approach to reliability growth planning based on failure mode discovery and correction using AMSAA projection methodology
Author :
Ellner, Paul M. ; Hall, Brian
Author_Institution :
U.S.AMSAA, Maryland, MD
fYear :
2006
fDate :
23-26 Jan. 2006
Firstpage :
266
Lastpage :
272
Abstract :
Exact expressions for the expected number of surfaced failure modes and system failure intensity as functions of test time are presented under the assumption that the surfaced modes are mitigated through corrective actions. These exact expressions depend on a large number of parameters. Functional forms are derived to approximate these quantities that depend on only a few parameters. Such parsimonious approximations are suitable for developing reliability growth plans and portraying the associated planned growth path. Simulation results indicate that the functional form of the derived parsimonious approximations can adequately represent the expected reliability growth associated with a variety of patterns for the failure mode initial rates of occurrence. A sequence of increasing MTBF target values can be constructed from the parsimonious MTBF projection approximation based on the following: (1) planning parameters that determine the parsimonious approximation; (2) corrective action mean lag time with respect to implementation and; (3) test schedule that gives the number of planned reliability, availability, and maintainability (RAM) test hours per month and specifies corrective action implementation periods
Keywords :
failure analysis; maintenance engineering; reliability theory; AMSAA projection method; MTBF projection approximation; failure mode discovery; parsimonious approximation; reliability growth planning; system failure intensity; Availability; Equations; Maintenance; System testing; Time measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Reliability and Maintainability Symposium, 2006. RAMS '06. Annual
Conference_Location :
Newport Beach, CA
ISSN :
0149-144X
Print_ISBN :
1-4244-0007-4
Electronic_ISBN :
0149-144X
Type :
conf
DOI :
10.1109/RAMS.2006.1677385
Filename :
1677385
Link To Document :
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