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Evaluation of Finite Element simulation methods for High Cycle Fatigue on engine components
Linköping University, Department of Management and Engineering, Solid Mechanics.
2018 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Utvärdering av simuleringsmetoder för analys av högcykelutmattning på motorkomponenter (Swedish)
Abstract [en]

This document reflects the results of evaluating three computational methods to analyse the fatigue life of components mounted on the cylinder block; two currently in use at Scania and one that has been further developed from its previous state.

Due to the cost of testing and the exponential increase in computational power throughout the years, the cheaper computational analyses have gained in popularity. When a component is mounted in a fairly complex assembly such as an engine, simplifications need to be made in order to make the analysis as less expensive as possible while keeping a high degree of accuracy.

The methods of Virtual Vibrations, VROM and VFEM have been evaluated and compared in terms of accuracy, computational cost, user friendliness and general capacities. Additionally, the method VFEM has been further developed and improved from its previous state.

A in-depth investigation regarding the differences of the methods has been conducted and improvements to make them more efficient are suggested herein. The reader can also find a decision matrix and recommendations regarding which method to use depending on the general characteristics of the component of interest and other factors.

Two components, which differ in complexity and mounting nature, have been used to do the research.

Place, publisher, year, edition, pages
2018. , p. 60
Keywords [en]
High Cycle Fatigue, HCF, Virtual Vibrations, VROM, VFEM, Virtual Channels, Random Vibrations, Engine Vibrations, FEM, Abaqus
National Category
Reliability and Maintenance Vehicle Engineering
Identifiers
URN: urn:nbn:se:liu:diva-148779ISRN: LIU-IEI-TEK-A--18/03040—SEOAI: oai:DiVA.org:liu-148779DiVA, id: diva2:1222603
External cooperation
Scania
Subject / course
Mechanical Engineering
Presentation
2018-06-15, A31, Linköping, 13:15 (English)
Supervisors
Examiners
Available from: 2018-06-25 Created: 2018-06-21 Last updated: 2018-06-25Bibliographically approved

Open Access in DiVA

Master Thesis Oscar Pacheco FINAL(5334 kB)34 downloads
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File name FULLTEXT02.pdfFile size 5334 kBChecksum SHA-512
a6809e457214828dab1360e907aa9e2a538a4664a1cdeac461a3569e298d9e44353204aff6fa817aa2bedad560b7382f6c88cf5703bcd6f9f0daa294d30d91b7
Type fulltextMimetype application/pdf

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CiteExportLink to record
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Citation style
  • apa
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Output format
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