基于刚柔混合模型的动力传动系振动特性分析  

Analysis of Vibration Characteristic of Powertrain Based on Rigid-Flexible Model

作　　者：刘猛 陆嘉敏 鲁统利[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200240

出　　处：《传动技术》2017年第3期3-8,共6页Drive System Technique

摘　　要：针对某前置后驱微型车存在的急加速工况下振动噪声问题,建立了该车型动力传动系ADAMS多体动力学模型,详细介绍了基于ABAQUS有限元软件建立柔性体中性文件的过程,对动力传动系进行了无阻尼自由振动模态分析;基于建立的急加速工况下的发动机激励模型,对动力传动系进行了强迫振动仿真,分析了部分参数变化对振动的影响,为动力传动系统振动的进一步研究奠定了基础。A multi-body dynamic model of a front-engine rear-drive car is built by ADAMS, and the way to build the flexible-body file by ABAQUS is explained carefully. Modal analysis of free vibration with no damping is done, by which the natural frequency of the transmission system and mode of vibration is reached. Based on the engine excitation model, the forced vibration analysis of the powertrain is carried out, which can be further used to optimize the vibration characteristic of the whole system.

关 键 词：前置后驱 刚柔混合 模态分析 强迫振动 

分 类 号：U463.21[机械工程—车辆工程]