CAD图纸
摘要
汽车车架是整个汽车的基体，是汽车设计中一个重要的环节。车架支撑着发动机离合器、变速器、转向器、非承载式车身和货箱等所有簧上质量的重要机件，承受着传给它的各种力和力矩。因此，车架必须要有足够的弯曲刚度，也要有足够的强度，以保证其有足够的可靠性与寿命。同时，随着现在汽车的发展，载重货车的乘坐舒适性，操控性能也在不断提高，因此车架的设计还应同时兼顾舒适性和操控性。
本文以商用载重货车为研究目标，结合货车的各项参数，对车架进行设计。确定了车架总成以及纵梁横梁的各项参数。运用solidworks软件做出了车架的三维模型图。同时利用ANSYS WORKBENCH有限元分析软件对车架的四种典型工况做出静力分析，得到各种工况下的变形情况和应力分布情况，同时对车架进行了模态分析。最后根据分析结果对车架做出优化建议。
关键词:载重货车；车架；结构设计；有限元分析
ABSTRACT
Thevehicle frame isthe base ofthe car,is one of the most important partsin the automobile design.Frame supports the engine clutch, transmission, steering gear, non bearing body and the container all spring quality the important parts, bear and pass it on to all kinds of force and moment.Therefore, the frame must have enough bending stiffness, alsowant to have enough strength, to ensure sufficient reliability and life.At the same time,with now the development of automobile and truck ride comfort, handling performance also continues to increase, so design of the frame should also combine comfort and handling.
In this paper, the commercial truck as the research objective, combinedwith the parameters of the truck, the frame design. Frame assembly and the longitudinal beam parameterswere determined. The 3D model chart of the framewas made by SolidWorks software.. At the same time, the finite element analysis software ANSYS Workbench of the frame of four kinds of typicalworking conditions to make static analysis, obtained undervarious conditions of deformation and stress distribution, and the modal analysis of the frame. Finally, according to the results of the analysis of the frame to make optimization recommendations.
Keywords: Truck；frame；structure design； finite element analysis
目录
摘要I
ABSTRACT II
1绪论1
1.1车架总成概述1
1.2国内外研究情况及其发展2
2车架总成设计6
2.1参考车型及其参数6
2.2车架类型的选择6
2.3车架设计的技术要求11
2.4车架的轻量化13
2.5车架的参数设计13
3车架的有限元静力学分析19
3.1车架几何模型的建立19
3.2车架有限元模型的建立19
3.3车架的静力学分析21
3.4基于静力分析的车架轻量化35
4车架的模态分析37
4.1车架模态分析的基本理论37
4.2车架有限元模态分析结果39
4.3车架外部激励分析43
5总结与展望46
5.1总结46
5.2工作展望46
参考文献48
致谢50
车架三维
车辆参数
设计目录
设计所包含文件
设计字数统计
有限元分析部分
中英文摘要
