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  4. Modelling and simulation of wear in micro-machines
 
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Modelling and simulation of wear in micro-machines

Publikationstyp
Conference Paper
Date Issued
2011
Sprache
English
Author(s)
Hegadekatte, Vishwanath
Kraft, Oliver
Huber, Norbert  orcid-logo
Werkstoffphysik und -technologie M-22  
TORE-URI
https://hdl.handle.net/11420/44446
Start Page
347
End Page
354
Citation
Friction, Wear and Wear Protection: International Symposium on Friction, Wear and Wear Protection 2008 Aachen, Germany. - Weinheim, 2009. - Seite 347-354
Contribution to Conference
International Symposium on Friction, Wear and Wear Protection 2008  
Publisher DOI
10.1002/9783527628513.ch43
Scopus ID
2-s2.0-84885559040
Publisher
Wiley-VCH Verlag GmbH & Co. KG
ISBN
978-3-527-32366-1
978-3-527-62851-3
978-3-527-62852-0
Study of wear in complex micro-machines is often accomplished with experimental methods, like pin on disc, scratch test, atomic force microscopy or surface force apparatus. These experiments are often conducted within the parameter space of the micro-machine and at constant load and sliding velocity. In reality, the contact loadings are time dependent and, in particular in the case of micro-machines, fast moving and rapidly changing. Using twin-wheel experiments, the wear law for the contacting materials is determined in form of the wear coefficient included in Archard's wear model. For the prediction of wear in more complex systems, a numerical simulation tool has been developed, which incorporates the identified wear model. This so-called Wear-Processor is capable of a fully transient wear integration scheme and is used to simulate wear in a micro gear, which is currently being developed within the collaborative research centre SFB 499. First results give an impression how fast the gear tooth geometry and the slip rates deviate from their original shape as a consequence of ongoing wear. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.
Subjects
Micro-machines
Modeling/simulation
Wear
DDC Class
004: Computer Sciences
621: Applied Physics
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