继电器多余物检测用大脉宽振动台的虚拟样机建模与设计  

Virtual Prototype Modeling and Design of Vibration Table with Wider Pulse for Particle Impact Noise Detection System

作　　者：杨文英[1] 梅发斌 刘兰香[1] 翟国富[1] YANG Wenying;MEI Fabin;LIU Lanxiang;ZHAI Guofu(Reliability Institute for Electric Apparatus and Electronics,Harbin Institute of Technology,Harbin 150001,China)

机构地区：[1]哈尔滨工业大学电器与电子可靠性研究所,黑龙江哈尔滨150001

出　　处：《电器与能效管理技术》2018年第22期70-76,共7页Electrical & Energy Management Technology

基　　金：国家自然科学基金青年基金项目(51507033)

摘　　要：继电器多余物检测自动检测系统进行冲击试验时,产生的冲击加速度波形脉宽小,无法满足测试条件要求,为此需提高冲击加速度波形脉宽。首先利用柔性体建模的方法,对振动台反力系统进行建模分析及数值计算;然后使用有限元非线性动态分析方法,求解振动台电磁机构动态特性;最后建立振动台碰撞部件的连续碰撞力模型,求解振动台冲击碰撞过程。通过所建立起来的振动台虚拟样机模型,分析出影响振动台冲击加速度脉宽的因素,并对振动台进行改进设计,最终解决了问题。When the impact test is performed using the automatic detection system of relay’s particles,the pulse width of the acceleration waveform generated by the system is too small to meet the requirements of test conditions.It is necessary to increase the pulse width of the impact acceleration waveform,so it is effective to model the virtual prototype of the vibration table being used in the system.The flexible body method is used to model the reaction system of the vibration table and get the numerical calculation results.The finite element nonlinear dynamic analysis method is applied to solve the dynamic characteristics of electromagnetic mechanism of the vibration table.A continuous collision force model of the vibration table is established to solve the process of the impact collision of the vibration table.Through building virtual prototype model of the vibrating table,the factors affecting the pulse width of the vibration table can be analyzed,and the vibration table’s characteristic is improved.The problem is solved and can be practically applied well.

关 键 词：继电器多余物检测 振动台 冲击加速度 脉宽 虚拟样机 

分 类 号：TM58[电气工程—电器]