Development of a novel methodology for root cause analysis and selection of maintenance strategy for a thermal power plant: A data exploration approach

被引:26
作者
Chemweno, Peter [1 ]
Morag, Ido [2 ]
Sheikhalishahi, Mohammad [1 ,3 ]
Pintelon, Liliane [1 ]
Muchiri, Peter [4 ]
Wakiru, James [4 ]
机构
[1] Katholieke Univ Leuven, Ctr Ind Management Traff & Infrastruct, Celestijnenlaan 300A, B-3001 Heverlee, Belgium
[2] Shenkar Coll Engn & Design, Dept Ind Engn & Management, Ramat Gan, Israel
[3] Univ Tehran, Sch Ind Engn, Enghelab Ave,POB 4563-11155, Tehran 14174, Iran
[4] Dedan Kimathi Univ Technol, Sch Mech Engn, POB 657-10100, Nyeri, Kenya
关键词
Root cause analysis; Data exploration; Principal component analysis; Cluster analysis; Maintenance strategy selection; FAILURE ANALYSIS; MODE; FMEA;
D O I
10.1016/j.engfailanal.2016.04.001
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Performing root cause analysis in technical systems is usually challenging owing to the complex failure associations which often exist between inter-connected system components. The recent adoption of maintenance management systems in industry has enhanced the collection of maintenance data which could assist practitioners derive meaningful failure associations embedded in the data. However, root cause analysis in the maintenance domain is dominated by the use of qualitative and semi-quantitative approaches. Such approaches, however, rely on expert elicitations whereof this elicitation process often introduces bias in the root cause analysis process. On the other hand, quantitative techniques for root cause analysis, for instance, fault trees and Bayesian networks are often limited to analyzing root causes in fairly simple systems. Moreover, the quantitative techniques seldom model the failure dependencies linked to the empirical failure events. Hence, to address these challenges, a novel data exploration methodology for root cause analysis is proposed which consists of four steps: 1) data collection and standardization step; 2) data exploration framework incorporating multivariate and cluster analysis; 3) causal mapping; and 4) maintenance strategy selection. The methodology is demonstrated in the application case of thermal power maintenance data. Moreover, the methodology is compared with two conventional qualitative root cause analysis techniques - Ishikawa cause-and-effect diagram, and the '5-whys' analysis. A detailed discussion is presented where of the added value of the methodology for maintenance decision support is demonstrated. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码:19 / 34
页数:16
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