Modeling of contact surface morphology and dust particles by using finite element method

被引：9

作者：

Wang Dong ^{[1
]}

Xu Liang-jun ^{[1
]}

机构：

[1] Beijing Univ Posts & Telecommun, Res Lab Elect Contacts, Beijing 100876, Peoples R China

来源：

JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE A | 2007年 / 8卷 / 03期

关键词：

dust particles; surface morphology; finite element method (FEM); hazardous size;

D O I：

10.1631/jzus.2007.A0403

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of dust particles on electric contacts and a hazardous size range of hard dust particles using a rigid model were discussed before. As further research, elastic-plastic model of finite element analysis was established in this work, which is closer to real condition. In this work, the behavior of large size and small size particles, and the influence of particles hardness were investigated. The calculating result of small-size particles presents a general hazardous size coefficient for different contact surface morphology; for large-size particles, it presents a hazardous size coefficient for complicated composition of the dust. And the effect of the dust shape is also discussed.

引用

页码：403 / 407

页数：5

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