特高压断路器传动机构动态特性分析-中南大学学报.PDF

第 47 卷第 5 期 中南大学学报( 自然科学版) Vol.47 No.5 2016 年 5 月 Journal of Central South University (Science and Technology) May 2016 DOI: 10.11817/j.issn.1672-7207.2016.05.010 特高压断路器传动机构动态特性分析 1 1 1 1 2 孟凡刚 ，巫世晶 ，张增磊 ，张凡 ，赵文强 (1. 武汉大学 动力与机械学院，湖北 武汉，430072 2. 平高集团，河南 平顶山，467000) 摘要：引入修正的库仑摩擦法则，建立在冲击载荷作用下含间隙的连杆传动机构有限元模型，仿真计算结果与试 验结果吻合良好。该模型可准确模拟传动机构的传动特性，结果表明：传动机构在分闸过程中会发生较大的弹性 变形，产生强烈的机械振动。旋转铰间隙对弹性机构动态特性具有显著的影响，间隙越大，接触力越大，振动越 剧烈。 关键词：传动机构；冲击特性；有限元法；接触碰撞 中图分类号：TH113 ；TH112 文献标志码：A 文章编号：1672−7207(2016)05−1519−08 Dynamic characteristic analysis of transmission mechanism of ultra-high voltage circuit breaker 1 1 1 1 2 MENG Fangang , WU Shijing , ZHANG Zenglei , ZHANG Fan , ZHAO Wenqiang (1. School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China; 2. Pinggao Group, Pingdingshan 467000, China) Abstract: The finite element model of the transmission mechanism with clearance considering the contact and collision under the impact loads was established by using the Coulomb’s friction, and simulation results are in good agreement with experiment results, which can accurately simulate the dynamic characteristics of the transmission mechanism. The result indicates that large elastic deformation and intense vibration under the impact loads at hinges take place. The clearance between journal and bearing has an impact on the dyn