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Assessing Product Reliability from Warranty Data
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English
Abstract
Warranty data can be a useful, accurate, and timely information source for monitoring the reliability of a product. At Cummins Engine Company a warranty based reliability information system was developed for diesel engines that has the capability to 1) evaluate the reliability of engines and their components, 2) compare the reliability performance of engines and components to goals and prioritize those areas needing improvement, and 3) detect changes in the warranty claims pattern of engine components to provide early warning of potential problems.
This paper will describe this warranty data system with emphasis on the analytical tools used to perform the above activities. Although many of the examples refer to diesel engines, the general concepts apply to the use of warranty data for many types of products.
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Citation
Schneider, R. and Tibbetts, D., "Assessing Product Reliability from Warranty Data," SAE Technical Paper 831200, 1983, https://doi.org/10.4271/831200.Also In
References
- Johnson L. G. Theory and Technique of Variation Research Elsevier Publishing Company New York, N.Y. 1964
- Simpson B. H. “Reliability Prediction From Warranty Data” Paper 660060 presented at SAE Congress Detroit, Michigan January 1966
- Vasan M. A. “Reliability Estimation and Failure Prediction of Highway Tractor Components” Paper 820979 presented at SAE West Coast Meeting San Francisco, California August 1982
- Kapur K. C. Lamberson L. R. Reliability in Engineering Design John Wiley and Sons New York, New York 1977
- Kapur Lamberson Op. Cit. 4