基于双轴汽车模型的车辆垂向动力学特性  

Vertical Dynamic Characteristics of Vehicles Based on the Two Axis Vehicle Model

作　　者：周自宝 王克飞[1] 

机构地区：[1]芜湖职业技术学院汽车工程学院,安徽芜湖241006

出　　处：《西安文理学院学报（自然科学版）》2017年第2期60-66,共7页Journal of Xi’an University(Natural Science Edition)

基　　金：安徽省质量工程大规模在线开放课程(MOOC)示范项目(2015mooc129);芜湖职业技术学院2014年度校级科学研究项目(Wzyzr201406);2014年度安徽省教育厅重点科研项目<基于分层-QNN算法的EV再生制动能量回收系统>(皖教[2014]1号;KJ2014A282)

摘　　要：针对前后轴车身部分垂向运动相互耦合及悬挂质量分配系数ε#1时车辆垂向振动,建立了包含座椅系统的双轴汽车五自由度振动模型;运用状态方程推导了振动系统频响函数矩阵,探讨了座椅不同安装位置系统响应特性的规律并选取了合理的安装位置.得出轮毂电机质量、悬挂质量分配系数的变化对座椅加速度、悬架动挠度、车轮相对动载荷等系统响应的影响规律.Aiming at the vertical vibration of vehicle when the vertical motion of the front and rear body parts are coupled to each other and the suspended mass distribution coefficient ε #1,the vibration model with five degree of freedom of a two axle vehicle is constructed. By using of the state equation,the frequency response function matrix of vibration system is deduced,and the regularity of the response characteristics of different mounting positions of seats is discussed,and a reasonable installation position is selected. The influence law of change of the quality of the hub motor and the distribution coefficient of suspended mass on the system response of seat acceleration,suspension dynamic deflection and relative dynamic load of wheel is concluded.

关 键 词：双轴汽车 轮毂电机质量 悬挂质量分配系数 垂向动力学 

分 类 号：U461.1[机械工程—车辆工程]