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Sometimes the accelerated life testing (ALT) of some products still take time and it is hard to implement real-time monitoring on samples to check whether the samples fail or not. Under this condition, periodic inspection is always conducted to monitor the sample performance, obtaining the failure time data in ALT. But periodic inspection may cause problems in some cases. When the failure is detected...
Failure data in accelerated life test are imprecise due to kind of subjectivity. This makes the assessment of testing lack of accuracy. A statistical model of accelerated life testing based on fuzzy theory is proposed in this paper. The model aims to describe the subjectivity of failure data and give a fuzzy interval assessment of lifetime and reliability comparing to the traditional point estimation...
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