Title :
The degradation-rate-reduction preventive maintenance policies with warranty in a finite time span
Author :
Cheng, Chun-Yuan ; Sun, Te-Hsiu ; Chen, Jr-Tzung ; Liu, Mei-Ling
Author_Institution :
Dept. of Ind. Eng. & Manage., Chaoyang Univ. of Technol., Taichung, Taiwan
Abstract :
A system normally has a finite useful life. The new system in each replacement cycle seldom has exactly the same characteristics and properties. However, maintenance problems are usually defined over the infinite time span where the system is assumed to have the same conditions and costs in each replacement cycle. This assumption might not be practical. Therefore, the purpose of this research is to develop the optimal preventive maintenance (PM) policies with degradation rate reduction over a finite time span under a warranty consideration by minimizing the expected total maintenance cost. Two cases are studied and compared, one is no warranty provided and the other is with a given warranty period. For the second case, two policies, performing and not performing PM within the warranty period, are examined. In this paper, the algorithm for searching the optimal solution is presented. Examples are given and the sensitivity analysis is also provided.
Keywords :
consumer protection; preventive maintenance; sensitivity analysis; warranties; degradation rate reduction; finite time span; maintenance cost minimization; preventive maintenance policies; replacement cycle; sensitivity analysis; warranty; Aging; Chaos; Cost function; Degradation; Engineering management; Hazards; Industrial engineering; Preventive maintenance; Technology management; Warranties; Degradation rate reduction; Finite time span; Preventive maintenance policy; Warranty;
Conference_Titel :
Industrial Engineering and Engineering Management, 2009. IEEM 2009. IEEE International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-4869-2
Electronic_ISBN :
978-1-4244-4870-8
DOI :
10.1109/IEEM.2009.5373381