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A low degree of freedom approach for prediction of friction in finite EHL line contacts
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.ORCID iD: 0000-0001-9110-2819
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.ORCID iD: 0000-0001-7029-1112
2017 (English)In: Tribology International, ISSN 0301-679X, E-ISSN 1879-2464, Vol. 115, 628-639 p.Article in journal (Refereed) Published
Abstract [en]

A low degree of freedom (LDOF) approach for expedient prediction of friction in finite EHL line contact is presented. Friction prediction are in good agreement with existing results for all of the reference cases tested. With the present LDOF approach, friction predictions can be obtained thousands of times faster than if using a fully coupled FE-based model. It can, therefore be used to simulated the tribological contacts in multi-body dynamic (MBD) systems with millions of degrees of freedoms. The model was utilised to study edge stress concentrations due to roller tilt. The results confirmed that increasing the tilting angle increases the maximum pressure and shifts its location towards the edge of roller. An increase in total friction was also observed.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 115, 628-639 p.
National Category
Tribology
Research subject
Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-64193DOI: 10.1016/j.triboint.2017.06.019ISI: 000407187900061Scopus ID: 2-s2.0-85021720586OAI: oai:DiVA.org:ltu-64193DiVA: diva2:1111717
Note

Validerad;2017;Nivå 2;2017-07-06 (rokbeg)

Available from: 2017-06-19 Created: 2017-06-19 Last updated: 2017-11-24Bibliographically approved

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Shirzadegan, MohammadLarsson, RolandAlmqvist, Andreas

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