Journal of South China University of Technology (Natural Science Edition) ›› 2014, Vol. 42 ›› Issue (1): 41-46.doi: 10.3969/j.issn.1000-565X.2014.01.008

• Mechanical Engineering • Previous Articles     Next Articles

Optimization of Repairable Spare Parts for K/N Cold- Standby Redundant System Considering Scraps

Xue Tao Feng Yun- wen Qin Qiang   

  1. School of Aeronautics,Northwestern Polytechnical University,Xi’ an 710072,Shaanxi,China
  • Received:2013-05-06 Revised:2013-10-28 Online:2014-01-25 Published:2013-12-01
  • Contact: 冯蕴雯(1968-)，女，教授，博士生导师，主要从事可靠性、维修性研究． E-mail:fengyunwen@nwpu.edu.cn
  • About author:薛陶(1978-)，男，博士生，工程师，主要从事装备修理级别与备件优化研究．E-mail:xt124124@163．com
  • Supported by:

    国家自然科学基金资助项目(51175425);航空科学基金资助项目(2011ZA53015)

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Abstract:

K/N cold- standby redundant system is an important way of improving the system reliability.However,inthe existing analytical models of this system,the scrap of repairable spare parts are not taken into consideration.Tosolve this problem,in this paper,first,the characteristics and working procedure of K/N cold- standby redundantsystem are analyzed.Next,by taking the minimum maintenance cost as the optimization target,a single- indenturetwo- echelon optimization model of repairable spare parts is proposed.Then,based on the allocation and modelingtheory of repairable spare parts,the analysis process and method considering the spare parts- supporting efficiencywith scraps are investigated. Moreover, the optimization model is solved via the marginal analysis,and the demandsfor spare parts are subsequently forecasted. Finally,some examples are presented to verify the feasibility and appli-cability of the proposed method.

Key words: redundant system, spare part, scrap, optimization

CLC Number: