农用车车架的结构分析与优化  

Analysis and Optimization of Agricultural Vehicle Frame Structure

作　　者：赵栋杰[1] 包春江[1] 张利鹏[1,2] 

机构地区：[1]聊城大学汽车与交通工程学院,山东聊城252059 [2]北京理工大学机械与车辆工程学院,北京100081

出　　处：《机械设计与研究》2010年第2期102-105,共4页Machine Design And Research

基　　金：山东省教育厅科技计划项目资助项目(J06B01)

摘　　要：建立了以板单元为基础的某型农用车车架有限元模型,并对其进行了静态分析、模态分析和随机振动分析,分析结果与相关试验数据吻合,验证了模型的正确性;在此基础上,进一步建立了车架的参数化有限元模型和优化数学模型,并利用基于遗传算法的优化程序对其进行优化求解,取得了较理想的减重效果。分析结果为车架的改型设计提供了参考。In order to obtain the static and dynamic characteristics of agricultural vehicle frame,finite element model（FEA） based on shell element was built and the analysis of static,normal and random vibrations were carried out.The analysis result met with the experiment data the model was verified.Moreover,both the parameterized finite element model and mathematic model of the frame were built and solved with optimization procedure based on genetic algorithm.The weight of the frame was decreased 17.2% after optimization.The result showed that the frame could be lighter and provided some theoretical reference for improving the frame design.

关 键 词：车架 有限元分析 优化 

分 类 号：U463.32[机械工程—车辆工程]