Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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Investigation into the Worst Stress Condition for an Accelerated Life Test of a Compressor in Refrigerators - Acceleration Factor and the Reducible Test Time under High Temperature -

냉장고용 압축기의 가속수명시험을 위한 가혹조건 탐색 - 고온 가혹조건에서의 가속계수와 단축 시험기간 -

  • Jung, Y.M. (Department of Refrigeration and Air-Conditioning Engineering, Pukyong National University) ;
  • Joo, W.J. (Department of Refrigeration and Air-Conditioning Engineering, Pukyong National University) ;
  • Jeong, S.K. (Department of Refrigeration and Air-Conditioning Engineering, Pukyong National University)
  • 정영미 (부경대학교 냉동공조공학과) ;
  • 주우진 (부경대학교 냉동공조공학과 대학원) ;
  • 정석권 (부경대학교 냉동공조공학과)
  • Received : 2011.12.07
  • Accepted : 2012.01.30
  • Published : 2012.06.30
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Abstract

The reliability qualification test is essential in order to ensure the life time of the product under the normal operation conditions when a new product is developed. The reliability qualification test period has an important impact on the development time of new product. Therefore, some researches to reduce the test time of reliability qualification test have been actively studied. Generally, accelerated life test is well known as one method that can save the test time of the reliability qualification test. This test is conducted under the higher stress condition than normal condition. So we need to investigate what factor affects to the higher stress condition. This paper shows the relationship between the acceleration factor and reliability qualification test period. Especially, we focused on the method to obtain effective acceleration factors under the high temperature condition. Through some experiments for a refrigerator's compressor, we were able to confirm how to increase acceleration factors and how to reduce the reliability qualification test period with minimum samples.

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References

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