基于Modelica的接触器振动性能分析  

Analysis on Vibration Characteristic of Contactor Based on Modelica

作　　者：赵勇 马伟 王建雄 ZHAO Yong;MA Wei;WANG Jianxiong(Guizhou Zhenhua Qunying Electric Appliance Co.,Ltd.,China Zhenhua Electronics Group,Guiyang 550018,China)

机构地区：[1]中国振华电子集团贵州振华群英电器有限公司,贵州贵阳550018

出　　处：《电器与能效管理技术》2023年第8期29-32,46,共5页Electrical & Energy Management Technology

摘　　要：为研究接触器在振动环境下的失效机理,以某高压直流接触器为例,建立其四自由度振动系统的数学模型,并采用基于方程的Modelica语言进行求解。通过定义加速度放大系数及影响因素分析,发现随着垫片刚度的增大,加速度放大系数显著降低,产品耐振动性能显著提高。最后,在振动试验台上实测安装两种不同材质垫片时的加速度放大系数,与理论计算结果基本吻合。所得结论对产品抗振动设计具有实用价值。To study the failure mechanism of contactors in vibration environments,taking a high-voltage DC contactor as an example,the mathematical model of its four degree of freedom vibration system is built and solved using Modelica,which is a language based on equations.By defining the acceleration amplification factor and analyzing the influence factors,it is found that the acceleration amplification factor is decreasing and the anti-vibration characteristics of the product is improving with the increase of the spacer stiffness.Finally,the measured acceleration amplification factor is obtained by testing two different material of spacers on the vibration test-bed.The measured data is consistent with the theoretical results.The conclusions are valuable for the anti-vibration design of the product.

关 键 词：接触器 振动性能 MODELICA 振动试验台 

分 类 号：TM572.2[电气工程—电器]