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Volume 40 Issue 3
Mar.  2014
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Journal of Beijing University of Aeronautics and Astronautics  > 2014  >  40(3): 413-416.
Bian Jiehui, Guo Linhan, Kang Rui, et al. Spares optimization under the influence of false alarm[J]. Journal of Beijing University of Aeronautics and Astronautics, 2014, 40(3): 413-416. doi: 10.13700/j.bh.1001-5965.2013.0238(in Chinese)
Citation: Bian Jiehui, Guo Linhan, Kang Rui, et al. Spares optimization under the influence of false alarm[J]. Journal of Beijing University of Aeronautics and Astronautics, 2014, 40(3): 413-416. doi: 10.13700/j.bh.1001-5965.2013.0238(in Chinese)
shu

Spares optimization under the influence of false alarm

doi: 10.13700/j.bh.1001-5965.2013.0238

  • School of Reliability and Systems Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 02 May 2013
  • Publish Date: 20 Mar 2014
    Abstract
  • When false alarm exists, spares would be misdiagnosed as failed ones and requirements for new spares would be sent to the repair site, the demand rate for spares will be overestimated. So it's necessary to introduce false alarm rate to make it more accurate. The formula was proved that when false alarm rate follows exponential distribution, the failed spares considering false alarm rate follows Poisson distribution. According to the multi-echelon inventory for repair spares control theory, the functional relation between demand rate considering false alarm rate and expected backorder (EBO) was founded. In the case of spares optimization, the objective function was convexly analyzed, and the convex algorithm facing system false alarm was set up with expected backorder being as performance measure, so that the selected inventory can improve the system efficient under the situation of false alarm being. Besides, the application case of airplanes was given out with the optimum spares configuration for comparison.

     

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