典型文献
Local grid refinement in multigrid method for point contact problems of polycrystalline anisotropic material under dry and lubricated conditions
文献摘要：
Predicting rolling bearing fatigue life requires knowledge of the three-dimensional(3D)stress fields in the roller and raceway near the lubricated contact.Owing to the increasingly severe operating conditions,the effect of localized features such as surface roughness,subsurface inclusions,and even the crystallographic structure of the material becomes important.Achieving such detail requires(locally)extremely dense griddding in simulations,which in 3D is a major challenge.Multigrid techniques have been demonstrated to be capable of solving such problems.In this study,multigrid techniques are shown to further increase the efficiency of the solution by exploiting local grid refinement while maintaining the simplicity of a uniform discretization.This is achieved by employing increasingly finer grids only locally,where the highest resolution is required.Results are presented for dry contact and elastohydrodynamically lubricated contact cases,circular as well as elliptic,with varying crystallographic structure,and with surface roughness.The results show that the developed algorithm is very well suited for detailed analysis,with also excellent prospects for computational diagnostics involving actual material crystallographic structure from electron backscatter diffraction measurements.
文献关键词：
中图分类号：
作者姓名：
Binbin ZHANG;Tristan G.VLOGMAN;Predrag ANDRIC;Ton C.BOR;Cornelis H.VENNER
作者机构：
Faculty of Engineering Technology,University of Twente,Enschede 7500AE,the Netherlands;SKF Research and Technology Development,Houten 3992AE,the Netherlands
文献出处：
引用格式：
[1]Binbin ZHANG;Tristan G.VLOGMAN;Predrag ANDRIC;Ton C.BOR;Cornelis H.VENNER-.Local grid refinement in multigrid method for point contact problems of polycrystalline anisotropic material under dry and lubricated conditions)[J].摩擦（英文）,2022(12):2086-2110
A类：
multigrid,griddding,Multigrid,elastohydrodynamically
B类：
Local,refinement,method,point,contact,problems,polycrystalline,anisotropic,material,under,dry,lubricated,conditions,Predicting,rolling,bearing,fatigue,life,requires,knowledge,three,dimensional,stress,fields,roller,raceway,near,Owing,increasingly,severe,operating,effect,localized,features,such,roughness,subsurface,inclusions,even,crystallographic,structure,becomes,important,Achieving,locally,extremely,dense,simulations,which,major,challenge,techniques,have,been,demonstrated,capable,solving,In,this,study,are,shown,further,increase,efficiency,by,exploiting,while,maintaining,simplicity,uniform,discretization,This,achieved,employing,finer,grids,only,where,highest,resolution,required,Results,presented,cases,circular,well,elliptic,varying,results,that,developed,algorithm,very,suited,detailed,analysis,also,excellent,prospects,computational,diagnostics,involving,actual,from,electron,backscatter,diffraction,measurements
AB值：
0.61613
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