摘要
建立了汽车的七自由度数学模型,用能量法推导了微型轿车的加速度、相对动载、动挠度和加速度均方根值的函数式.用Matlab软件编写了仿真程序,并在汽车试验场进行了实车试验.函数的仿真曲线与试验结果比较吻合,证明了仿真分析的正确性,该方法对其它汽车的研发具有借鉴意义.
Based on a seven DOF mathematic model of a mini car, some function expressions in relation to centroid acceleration, relatively dynamic load, dynamic spring deflection and root mean square value of acceleration were derived according to the energy method. The corresponding simulation programs were written by means of Matlab software, and some tests were carried out in a proving ground. The test findings indicate that the simulation results tally with the testing curves, which proves the correctness of the simulation analysis and its referential value for the future development.
出处
《车辆与动力技术》
2010年第2期41-45,共5页
Vehicle & Power Technology
关键词
汽车
平顺性
仿真
试验
Car
Ride comfort
Simulation
Test
