摘要
过于复杂的多自由度汽车振动模型难以计算分析,为了获得尽量简化且保证一定精确度的模型,建立了八自由度人-车-路耦合振动模型,推导出振动微分方程,并运用SIMULINK软件将所建立的八自由度数学模型转化为仿真模型。通过运动仿真,得到车身及人-座椅系统的振动加速度、悬架动挠度和车轮动位移等响应曲线。经对所得图形数据的比较分析,选择的车型参数匹配是合理的。建立的汽车振动模型及其仿真程序和计算过程对研究车辆行驶的平顺性、对简化汽车振动系统模型有一定的参考价值。
It is difficult to calculate and analyze a complicated automobile vibration model of multiple-degree-offreedom. To obtain a simplified and relatively accurate model, the 8-DOF man-vehicle-road coupled vibration model was established and the vibration differential equation was derived. The 8-DOF mathematical model was translated into a simulation model by using Simulink. The response curves of the vibration acceleration, suspension dynamic deflection and wheel dynamic displacement of the bodywork and man-ehair system were gotten from the movement simulation. The eomparison and analysis of the figures and data reveal that the parameters matching of the selected model is reasonable. The automobile vibration model and it＇s simulation program and computation process have some reference value to study the ride comfort and to simplify the automotive vibration system.
出处
《宿州学院学报》
2015年第3期93-97,共5页
Journal of Suzhou University
基金
安徽省教育厅自然科学研究一般项目"电动汽车驱动系统硬件在环仿真研究"(KJ2012B027)
