Affiliation:
1. College of Science Civil Aviation University of China Tianjin 300300 CHINA
Abstract
This paper focus on a (N, T) preventive maintenance (PM) policy with lifetime reduction discount rate. In our consideration, the lifetime of component is assumed to be an uncertain variable due to the absence of historical operational data, an uncertain (N, T) PM model with the lifetime reduction in a certain proportion is proposed based on uncertain renewal process. Accordingly, the uncertain model, which minimizes the expected maintenance cost rate, is formulated to find the optimal replacement cycle length T∗ and the number N∗ of preventive maintenance. Finally, a numerical example with sensitivity analysis of parameters is provided to illustrate the proposed model, the results imply that the parameters of cost and lifetime can significantly affect the optimal solutions N∗ and T∗, which can provide a useful reference and guidance for aircraft maintenance decision.
Publisher
World Scientific and Engineering Academy and Society (WSEAS)
Reference24 articles.
1. B. Liu, Uncertainty Theory, 2th ed., SpringerVerlag, Berlin, 2007.
2. B. Liu, Theory and Practice of Uncertain Programming, 2nd ed., Springer-Verlag, Berlin, 2009.
3. B. Liu, Uncertainty Theory: A Branch of Mathematics for Modeling Human Uncertainty, Springer-Verlag, Berlin, 2010.
4. B. Liu, Uncertainty Theory, 4th ed., Uncertainty Theory Laboratory, 2013.
5. C. X. Zhang, C. R. Guo, Some new results on uncertain age replacement policy, Industrial Engineering and Management Systems, Vol.12, No.1, 2013, pp.41-45.