As a reliability quantitative specification, parametric accelerated life testing was used to assess\nthe reliability of a newly designed compressor of a commercial refrigerator subjected to repetitive\nstresses. A generalized life-stress failure model and new sample size equation with a new load\nconcept were derived starting with the basic refrigeration cycle. The sample size equation with\nthe acceleration factor also enabled the parametric accelerated life testing to quickly evaluate the\nexpected lifetime. The design of this testing should help an engineer uncover the design parameters\naffecting reliability during the design process of the compressor system. Consequently, it\nshould help companies improve product reliability and avoid recalls due to the product failures in\nthe field. A newly designed compressor in a commercial refrigerator was used as a test case.
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