基于有限元法的车载机柜动态特性仿真分析  

Simulation Analysis of Dynamic Characteristics of Cabinet for Vehicle Based on Finite Element Method

作　　者：韩增盛[1] 邵士媛[1] 

机构地区：[1]郑州铁路职业技术学院,郑州450052

出　　处：《科学技术与工程》2009年第1期171-174,共4页Science Technology and Engineering

摘　　要：针对机柜在车载环境中受到冲击载荷的作用产生疲劳破坏,在分析车载机柜结构特点和材料力学性能的基础上,建立了车载机柜结构的有限元模型。对模型提取了前41阶自振频率,确定了机柜的第一和第二阶模态振型。利用ANSYS软件对机柜进行了模态分析、半正弦波冲击响应分析和后峰锯齿波冲击响应分析,结果表明该机柜的强度满足要求。The cabinet comes to be tired and destroy when it is effected by collision in loading situation. Aiming at this, finite element model of cabinet is created for vehicle structure based on analyzing its structure characteristics and its material mechanics performance. In the model the preceding 41 ranks self-oscillate frequency are refined, confirm the first and the second rank oscillation types of cabinet. Using the software ANSYS, the mode of cabinet is analyzed,responsed to semi sine wave impact and response to hinder sawtooth wave impact. As result,the strength of cabinet can meet the requirements.

关 键 词：机柜 有限元 动态特性 强度 

分 类 号：U463.82[机械工程—车辆工程]