TITLE:
Ship System Maintenance Strategy Selection Based on DELPHI-AHP-TOPSIS Methodology
AUTHORS:
Ikuobase Emovon
KEYWORDS:
TOPSIS Method, Maintenance Strategy, Ship System, Delphi Method, Decision Criteria
JOURNAL NAME:
World Journal of Engineering and Technology,
Vol.4 No.2,
May
19,
2016
ABSTRACT: Maintenance decision problems generally involve multiple criteria which apparently are best addressed using Multi-Criteria Decision Making (MCDM) tools. This paper describes the use of a hybrid MCDM technique in prioritizing maintenance strategy for ship systems. The Hybrid MCDM technique combines Delphi method, AHP and TOPSIS methods. While the Delphi method and AHP are applied in screening of decision criteria and decision criteria weights determination respectively, the TOPSIS method is used in the ranking of alternative maintenance strategies. Five alternative maintenance strategies which include corrected maintenance, scheduled overhaul, scheduled replacement, continuous on-condition task and scheduled on-condition task are considered and the optimum maintenance strategy is selected based on twelve critical maintenance decision criteria. To demonstrate the suitability of the approach a case study of sea water pump of the central cooling system of a marine diesel engine is used.