Change search
ReferencesLink to record
Permanent link

Direct link
Solving complex maintenance planning optimizationproblems using stochastic simulation and multi-criteriafuzzy decision making
Mälardalen University, School of Education, Culture and Communication. (Applied Mathematics)
2014 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The main goal of this project is to explore the use of stochastic simulation,genetic algorithms, fuzzy decision making and other tools for solvingcomplex maintenance planning optimization problems. We use two dierentmaintenance activities, corrective maintenance and preventive maintenance.Since the evaluation of specic candidate maintenance policies can take a longtime to execute and the problem of nding the optimal policy is both nonlinearand non-convex, we propose the use of genetic algorithms (GA) for theoptimization. The main task of the GA is to nd the optimal maintenancepolicy, which involves: (1) the probability of breakdown, (2) calculation ofthe cost of corrective maintenance, (3) calculation of the cost of preventivemaintenance and (4) calculation of ROI (Return On Investment).Another goal of this project is to create a decision making model for multicriteriasystems. To nd a near-optimal maintenance policy, we need to havean overview over the health status of the system components. To modelthe health of a component we should nd all the operational criteria thataect it. We also need to analyze alternative maintenance activities in orderto make the best maintenance decisions. In order to do that, the TOPSISmethod and fuzzy decision making has been used.To evaluate the proposed methodology, internal combustion engine coolingof a typical Scania truck was used as a case study.

Place, publisher, year, edition, pages
2014. , 103 p.
Keyword [en]
National Category
Other Mathematics
URN: urn:nbn:se:mdh:diva-25877OAI: diva2:744190
Subject / course
Mathematics/Applied Mathematics
2014-06-03, U3-083, Hilbert room, Västerås, 13:00 (English)
Available from: 2014-09-09 Created: 2014-09-07 Last updated: 2014-09-09Bibliographically approved

Open Access in DiVA

Tahvili,S-Thesis(1489 kB)297 downloads
File information
File name FULLTEXT01.pdfFile size 1489 kBChecksum SHA-512
Type fulltextMimetype application/pdf

By organisation
School of Education, Culture and Communication
Other Mathematics

Search outside of DiVA

GoogleGoogle Scholar
Total: 297 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 1855 hits
ReferencesLink to record
Permanent link

Direct link