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Reliability, Maintainability and Risk, 9th Edition by David J. Smith

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Chapter 4

Realistic Failure Rates and Prediction Confidence

Abstract

This chapter outlines and compares numerous published sources of failure rate data. It explains the factors which lead to widely differing data values and introduces the idea and need for data ranges. The relationship between predicted reliability and the eventual field data is explored and the results of researches are given. The inevitable optimism of supplier based failure rate claims is emphasised.

Keywords

Data
generic
industry-specific
site-specific
ranges
geometric mean
manufacturer’s
warranty

4.1. Data Accuracy

There are several sources of failure rate data compiled by defense, telecommunications, process industries, oil and gas and other organizations. Some are published ...

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