汽车转鼓试验非线性动力学特性与影响因素分析  

Nonlinear Dynamics Characteristics and Influence Factors Analysis of Vehicle Chassis Dynamometer Test

作　　者：张乐祎[1] 张立军[1] 徐倜凡[1] 张健[1] 

机构地区：[1]同济大学

出　　处：《汽车技术》2008年第7期52-56,共5页Automobile Technology

摘　　要：针对道路试验车辆和转鼓试验车辆分别建立了非线性动力学分析模型,通过仿真结果的对比分析阐明了转鼓试验可能导致的误差,进而通过对转鼓试验系统中车辆固定方式、非驱动轮胎固定方式、转鼓模拟转动惯量和动态响应控制标准的灵敏度仿真分析,指出了影响转鼓试验模拟精度的关键因素,提出了动态响应的改进和控制措施。Aiming at road test and dynamometer test vehicle,the nonlinear dynamics models were built respectively, and the error of dynamometer test is explained by the comparison analysis of simulation results.Through simulation analysis,causes of test errors on dynamometer axe found. Furthermore,studies on fixtures for vehicle body and non-driven wheels on dynamometer, inertia of dynamometer and sensitivity analysis demonstrate key factors for test precision of chassis dynamometer test, and the control and improved methods for dynamic response are proposed.

关 键 词：转鼓试验 非线性动力学 仿真 

分 类 号：U467.1[机械工程—车辆工程]