Analysis of Approaches for Modeling the Contact Resistance on Conductor Interface by the Finite Element Method
There may be an additional contact resistance on the interface of conductor regions caused by the change of material property,i.e.,the resistivity.The simulation of the contact resistance is very important to get the Joule-heat losses of the conductors.However,it is difficult or impossible to model and calculate the contact resistance by using the traditional finite element method(FEM).A new method to model the contact resistance has been proposed in this article,with the help of the contact element in FEM software ANSYS.The contact element meshes the interface between conductors directly.With the parameter of surface conductivity,equations can be set up to couple the value elements of the conductors.We have implemented the simulation of contact resistance on the interface of different shape regions.Some examples of contact resistance calculation under different contact conditions are given and compared to those given by other methods.It is shown that using the contact element of ANSYS can model the contact resistance more easily and accurately,with a great advantage over other methods.
Zejun Shen Li Hao Peng Zuo Jiansheng Yuan
Department of Electrical Engineering,Tsinghua University,Beijing 100084,China
国际会议
Progress in Electromagnetics Research Symposium 2013(2013年电磁学研究新进展学术研讨会)
台北
英文
556-560
2013-03-01（万方平台首次上网日期，不代表论文的发表时间）