CFRP/AL车门防撞梁热变形有限元仿真与分析  

Thermal Deformation Analysis of CFRP/AL Door Impact Beam Using Finite Element Simulation and Experimental Research

作　　者：王立[1] 司索[1] 王华[1] 

机构地区：[1]上海交通大学上海市复杂薄板结构数字化制造重点实验室,上海200240

出　　处：《汽车工程学报》2014年第4期259-266,共8页Chinese Journal of Automotive Engineering

基　　金：国家自然科学基金(51275308);科技部国际科技合作计划资助课题(2010DFA72760);教育部高等学校学科创新引智计划(B06012)

摘　　要：由于热膨胀系数不同,异种材料结构在环境温度变化时会发生变形,并影响最终的装配性能。基于ABAQUS平台建立CFRP/AL车门防撞梁有限元模型,对防撞梁在温度变化时的变形进行了研究。基于仿真分析结果,利用二次样条函数对仿真结果进行插值,预测CFRP层合板的变形,快速计算CFRP/AL车门防撞梁在不同温度下的变形。通过仿真运算及插值结果针对试验数据的分析及比较,验证了有限元模型的准确性,并利用二次样条插值函数匹配CFRP/AL车门防撞梁非线性趋势,为装配变形补偿提供依据。Due to the different thermal expansion coefficients of the dissimilar materials assembled, changes in ambient temperature may generate new bias because of the inconsistency of thermal deformation. Taking the CFRP/AL door impact beam as the research object, the paper built a finite element analysis model based on ABAQUS to analyze the deformation caused by changes in ambient temperature. A quadratic spline interpolation function was used to match the nonlinear trend of the CFRP/AL door impact beam and to provide a basis for deformation compensation.The simulationand interpolation results were compared with experimental data and the accuracy of the finite element model was verified.

关 键 词：复合材料 车门防撞梁 热变形分析 有限元分析 样条插值 

分 类 号：U463.834[机械工程—车辆工程]