微型电动汽车车身结构改进及动态试验分析OA北大核心CSCDCSTPCD
Structural improvement of the frame and dynamic test analysis for micro electric vehicle
为了降低车身振动,以某微型电动汽车车身为研究对象,利用有限元软件对其进行静态分析,根据变形和应力分布情况进行结构改进,并对改进后的车身进行模态分析,提取前6阶固有频率和振型并进行试验验证.结果表明:改进后的车身满载左前轮悬空工况最大变形降低了79.75%,最大等效应力降低了48.64%;对角两轮悬空工况最大变形降低了76.30%,最大等效应力降低了55.63%;车身的固有振型以顶棚振动为主,第1阶模态频率为7.803 2Hz.
In order to reduce the vibration of the frame,a type of micro electric vehicle frame was studied.And the static of the frame are analyzed based on the finite element software,then the structure of the frame is improved according to the deformation and equivalent stress distribution.The mode of the improved frame is analyzed and the first 6 order natural frequencies and modes are extracted.And dynamic tests are performed to verify that the results are correct…查看全部>>
于玉真;李励;肖健
华北理工大学机械工程学院,唐山 063009华北理工大学机械工程学院,唐山 063009华北理工大学机械工程学院,唐山 063009
信息技术与安全科学
车身模态有限元试验
framemodefinite elementtest
《现代制造工程》 2017 (7)
75-79,5
河北省科技计划项目(15212208)华北理工大学博士启动基金项目(25397599)
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