A development of accelerated life test method for blower motor for automobile using inverse power law model

Wae Gyeong Shin, Soo Hong Lee

Research output: Contribution to journalArticle

5 Citations (Scopus)


Reliability of automotive parts has been one of the most interesting fields in the automotive industry. Especially small DC motor was issued because of the increasing adoption for passengers safety and convenience. This study was performed to develop the accelerated life test method using Inverse power law model for small DC motors. The failure mode of small DC motor includes brush wear-out. Inverse power law model is applied effectively the electronic components to reduce the testing time and to achieve the accelerating test conditions. Accelerated life testing method was induced to bring on the brush wear-out as increasing voltage of motor. Life distribution of the small DC motor was supposed to follow Weibull distribution and life test time was calculated under the conditions of B10 life and 90 confidence level.

Original languageEnglish
Pages (from-to)1074-1080
Number of pages7
JournalInternational Journal of Modern Physics B
Issue number9-11
Publication statusPublished - 2008 Apr 30


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Statistical and Nonlinear Physics
  • Mathematical Physics

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