• 제목/요약/키워드: HAST(Highly Acceleration Stress Test)

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한국형고속철도 열차제어시스템 하부구성요소 신뢰도입증에 관한 연구 (A Study on the Reliability Demonstration for Korea High Speed Train Control System)

  • 이재호;이강미;김용규;신덕호
    • 한국철도학회논문집
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    • 제9권6호
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    • pp.732-738
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    • 2006
  • This research provides a scheme for Highly Accelerated Stress Test that is necessary to demonstrate reliability prediction of Korean Rapid Transit Railway Train Control System sub-equipment, which is calculated by a relevant standard for failure rate prediction of electronic products. Although determining failure information generated in the process of trial running by statistic analysis is widely accepted as a measure of confirmation for reliability prediction, this research suggests the modeling for System Life Test determined by accelerating stress factors as a measure of confirmation for reliability prediction of sub-equipment unit that is generated ahead of a trial running in System Life Cycle. Consequently, the research demonstrates sub-equipment unit reliability test, which is based on the model derived from Accelerated Stress Test, according to accuracy level and the number of samples, and conducts an official experiment by making out a reliability test procedure sheet based on test time as well.