基于Workbench的重型载货汽车驱动桥壳动力学分析  

Dynamic Analysis of Heavy Truck Drive Axle Housing Based on Workbench

作　　者：李晶 拜赟 胡凯 张罡肇 LI Jing;BAI Yun;HU Kai;ZHANG Gangzhao(School of Automotive Engineering,Lanzhou Institute of Technology,Lanzhou 730050,China)

机构地区：[1]兰州工业学院汽车工程学院,甘肃兰州730050

出　　处：《汽车实用技术》2023年第13期105-110,共6页Automobile Applied Technology

基　　金：2022年甘肃省高校创新创业教育教学改革研究项目:基于“专创融合”的材料力学课程教学改革研究(LGYCXG-22-02);2022年甘肃省高等学校创新基金项目:双吸式离心泵在输送含沙水流下的流动及磨损特性(2022A-167);2022年国家大学生创新创业项目训练计划项目:汽车油门转换刹车系统与ECU电控喷油系统的研究(DC2201-17);2021年国家大学生创新创业项目训练计划项目:一种可自动调节远近光灯的研究(DC2111807CX888)。

摘　　要：文章以CA141解放牌汽车为研究对象,基于SolidWorks软件对驱动桥壳建立三维模型后,利用ANSYS软件对驱动桥壳进行动力学分析。首先通过模态分析得到各阶的振动频率,桥壳结构在约束模态下的前六阶振型的频率不在0~50 Hz,桥壳在正常运行过程中不会产生共振;然后在模态分析的基础上对桥壳进行瞬态动力学分析、随机振动分析发现,最大等效应力与应变均位于桥壳的板簧座附近,同时与载荷的变化呈现正相关的趋势,最大剪切应力与定向加速度也相应呈现规律的递减或周期性变化,从而为桥壳的优化设计和研究提供了更完善的理论参考依据。Taking CA141 Jiefang truck as the research object,this paper establishes the 3D model of the drive axle housing with the software SolidWorks,and uses ANSYS software to conduct dynamic analysis of the drive axle housing.Firstly,the vibration frequencies of each order are obtained through modal analysis.The frequencies of the first six vibration modes of the axle housing structure in the constrained mode are not in the range of 0~50 Hz,and the axle housing will not produce resonance in the normal operation process.Then,based on the modal analysis,the transient dynamic analysis and random vibration analysis of the axle housing are conducted.It is found that the maximum equivalent stress and strain are located near the leaf spring seat of the axle housing,and at the same time show a positive correlation trend with the change of load,and the maximum shear stress and directional acceleration also show a regular decreasing or periodic change,which provides a more perfect theoretical reference for the optimal design and research of the axle housing.

关 键 词：驱动桥壳 瞬态动力学 随机振动 WORKBENCH 重型载货汽车 

分 类 号：U463[机械工程—车辆工程]