Cost Optimization of Step-Down-Stress Accelerated Life Testing
نویسندگان
چکیده
منابع مشابه
Design of Optimum Simple Step-Stress Accelerated Life Testing Plans
Accelerated life testing (ALT) is widely conducted to obtain failure-time data in a much shorter time and to make inference about reliability at normal conditions. The accuracy of the reliability prediction is dependent on well-designed ALT plans. A stepstress ALT allows the test condition to change at a given time or upon the occurrence of a specified number of failures. In this paper, we prop...
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Conclusions This article develops a Bayes model for step-stress accelerated life testing. The failure times at each stress level are exponentially distributed, but the specification of strict adherence to a time transformation function is not required. Rather, prior information is used to define indirectly a multivariate prior distribution for the failure rates at the various stress levels. Ou...
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By running life tests at higher stress levels than normal operating conditions, accelerated life testing quickly yields information on the lifetime distribution of a test unit. The lifetime at the design stress is then estimated through extrapolation using a regression model. To conduct an accelerated life test efficiently with constrained resources in practice, several decision variables such ...
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ژورنال
عنوان ژورنال: DEStech Transactions on Social Science, Education and Human Science
سال: 2017
ISSN: 2475-0042
DOI: 10.12783/dtssehs/emass2016/6800