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Old October 16th, 2008, 11:47 AM
avanti avanti is offline
Join Date: Oct 2008
Location: CA
Posts: 75
Default Reliability/Confidence of One Shot Components in a System

I have three one-shot components that are assembled together to form a system. Each component was tested with no-failures.
Test quantities and reliability (from beta equation R=(1-c)^(1/n) where c = confidence level (CL)) are:
Component 1: 50 tests R1 = .955 at 90% CL
Component 2: 60 tests R2 = .962 at 90% CL
Component 3: 27 tests R2= .918 at 90% CL
How do I calculate the system reliability for a 90% confidence level taking into account the different test quantities (I understand that the product of R1, R2, R3 will be underestimate the system reliability)?
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