摘要
建立了以板单元为基本单元的车架有限元分析模型 ,利用有限元分析软件 AL GORFEAS对其进行了静态、自由振动和随机振动分析。将计算结果与实验数据进行对比 ,验证了计算的正确性 ,找出了车架裂纹过早出现的原因 ,得出了有限元分析结果、实验结果与使用中出现的车架异常断裂情况相吻合的结论 ,最后给出了对该种车架结构改造的方法。
In this paper, the FEA modal of the vehicle frame is established by taking plate unit as basic unit. The analysis of static, dynamic and random vibration is made by using the ALGOR FEAS. The result of calculation is contrasted with that of the experiment. The calculation result is verified by the experiment. The reasons for vehicle frame fatigue crack appearing in early stage are found out. The results of FEA and the experiment accord with those of the vehicle frame abnormal rupture in practice. The ways for the reconstruction of the vehicle frame structure are presented.
出处
《西安理工大学学报》
CAS
2001年第3期251-256,共6页
Journal of Xi'an University of Technology
基金
国家自然科学基金 (重大 )资助项目 (1 9990 5 1 0 )
关键词
车架
有限元分析
随机振动
疲劳裂纹
模态分析
自卸汽车
vehicle frame
finite element analysis
random vibration
fatigue crack
modal analysis
