DocumentCode :
2246370
Title :
Fuzzy renewal process, fuzzy renewal reward process and their applications
Author :
Zhao, Ruiqing ; Tang, Wansheng ; Yun, Huaili
Author_Institution :
Inst. of Syst. Eng., Tianjin Univ., China
Volume :
2
fYear :
2004
fDate :
25-29 July 2004
Firstpage :
739
Abstract :
This work extends the work in Zhao and Liu on fuzzy renewal process and renewal reward process from continuous case to more general case. Fuzzy elementary renewal theorem and fuzzy renewal reward theorem are developed and shown how they can be applied to maintenance policies. Three kinds of maintenance policies- fuzzy age replacement policy, fuzzy block replacement policy and fuzzy inspection policy are discussed. The optimality functions studied are the long run expected costs per unit of time. Finally, a hybrid intelligent algorithm is employed to solve the models proposed in maintenance policies and to arrive at optimum policies. A numerical example is enumerated and the result indicates that the algorithm is effective.
Keywords :
fuzzy set theory; maintenance engineering; optimisation; reliability theory; fuzzy age replacement policy; fuzzy block replacement policy; fuzzy elementary renewal theorem; fuzzy inspection policy; fuzzy renewal reward process; fuzzy renewal reward theorem; hybrid intelligent algorithm; maintenance policies; optimality functions; Chromium; Cost function; Fuzzy systems; Inspection; Integral equations; National electric code; Possibility theory; Random processes; Stochastic processes; Systems engineering and theory;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Fuzzy Systems, 2004. Proceedings. 2004 IEEE International Conference on
ISSN :
1098-7584
Print_ISBN :
0-7803-8353-2
Type :
conf
DOI :
10.1109/FUZZY.2004.1375491
Filename :
1375491
Link To Document :
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