Imperial College London
Portrait Picture

Professor Rob Hewson

Faculty of Engineering, Department of Aeronautics

Professor of Multidisciplinary Design Optimisation
 
 
 
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Contact

 

r.hewson Website

 
 
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Location

 

341City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{de:2016:10.1016/j.triboint.2016.12.019,
author = {de, Boer GN and Gao, L and Hewson, RW and Thompson, HM},
doi = {10.1016/j.triboint.2016.12.019},
journal = {Tribology International},
pages = {262--278},
title = {Heterogeneous multiscale methods for modelling surface topography in EHL line contacts},
url = {http://dx.doi.org/10.1016/j.triboint.2016.12.019},
volume = {113},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - A multiscale method for the Elastohydrodynamic Lubrication (EHL) of line contacts is derived based on the Heterogeneous Multiscale Methods.Periodicity applies to the topographical features and lubricant flow, data is homogenised over a range of variables at amicro-scale and coupled into amacro-scalemodel. This is achieved using flow factorsas calculated from metamodels, which themselves evolve with the solution procedure. Results are givenfor  an  idealised  topography  and  illustrate significant deviationsfrom  smooth  surface  assumptions  as quantified  by  the  flow  factors. Improvements  in  the  accuracy andefficiency  with  previous  work  and  large fluctuations  due  to  micro-EHL  are  also  presented.Validation  of  the  multiscale  method  with  a  deterministic topography is provided demonstrating good accuracy and efficiency.
AU  - de,Boer GN
AU  - Gao,L
AU  - Hewson,RW
AU  - Thompson,HM
DO  - 10.1016/j.triboint.2016.12.019
EP  - 278
PY  - 2016///
SN  - 1879-2464
SP  - 262
TI  - Heterogeneous multiscale methods for modelling surface topography in EHL line contacts
T2  - Tribology International
UR  - http://dx.doi.org/10.1016/j.triboint.2016.12.019
UR  - http://hdl.handle.net/10044/1/43265
VL  - 113
ER  -
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