Selection Of Analytical Computational Model Of Contact Pressure

Journal of Middle European Construction and Design of Cars

Novotný Pavel¹  Vopařil Jan¹  Maršálek Ondřej²  Raffai Peter² 

[1] Technická 2, CZ 616 69 Brno, Czech Republic Tel.: [phone], Fax: [phone];Institute of Automotive Engineering, Brno University of Technology;

关键词: FEM;    FDM;    CONTACT PRESSURE;    SURFACE DEFLECTION;    ROUGH SURFACE;    MKP;    MKD;    KONTAKTNÍ TLAK;    PROLNUTÍ POVRCHŮ;    DRSNOST POVRCHU;   

DOI  :  10.1515/mecdc-2015-0006

来源: DOAJ

【 摘 要 】

This paper presents a comparison of two contact pressure calculation methods between two real rough surfaces: a calculation based on FEM (Finite Element Method) using commercial software tool ANSYS and a calculation based on FDM (Finite Difference Method) using analytical functions implemented in programing tool MATLAB. This comparison, lately, leads to the selection of the most appropriate analytical contact model useful for time-effective and precise contact pressure determination. Surface data for numerical simulations are obtained by optical profilometry. For the case of the modelling process of 3D FEM models of rough surfaces the description of their building is included in this article. Furthermore, this paper discusses all challenges connected with the convergence of such simulations and essential post-processing of FEM simulation results, together with their comparison, along the results obtained by user-written MATLAB functions.

【 授权许可】

Unknown