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Method for investigation of frictional properties at impact loading
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mechanics of Solid Materials.
1999 (English)In: Journal of Sound and Vibration, ISSN 0022-460X, E-ISSN 1095-8568, Vol. 222, no 4, p. 669-77Article in journal (Refereed) Published
Abstract [en]

In the assessment of lubricant performance and also in various other contact applications it is of importance to know the frictional qualities of a surface. Under quasi-static conditions, normal and frictional forces are measured using force transducers but the task is more difficult when loads are transient. The experimental method presented in this paper is based on the analysis of propagating waves in a beam, due to an impact on the end surface. The impact is oblique and therefore a transverse as well as a normal force is generated. The normal force history is measured from the axial non-dispersive wave using strain gauges. Transverse force and bending moment both generate dispersive flexural waves. From the FFT of two transverse acceleration histories, the frictional force at the end of the rod is evaluated using beam theory. The relation between normal and frictional force histories displays the frictional properties at the impact. Preliminary results are presented

Place, publisher, year, edition, pages
1999. Vol. 222, no 4, p. 669-77
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear) Applied Mechanics
Research subject
Machine Elements; Solid Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-11186DOI: 10.1006/jsvi.1998.2092ISI: 000080089000009Local ID: a179dad0-bb5a-11db-b560-000ea68e967bOAI: oai:DiVA.org:ltu-11186DiVA, id: diva2:984135
Note
Godkänd; 1999; 20070111 (cira)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Sundin, Karl-GustafÅhrström, Bert-Olof

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