重型车辆多轮转向机构的仿真研究  

Kinematical Simulation on the Steering Mechanism for Heavy Vehicle

作　　者：崔亚辉[1] 刘晓琳[1] 马朝锋[1] 聂文[1] 

机构地区：[1]西安理工大学,西安710048

出　　处：《中国机械工程》2008年第20期2501-2504,共4页China Mechanical Engineering

摘　　要：采用新型的函数逼近法,针对多轮重型车辆用中心臂Watt-Ⅱ六连杆转向机构进行了分析与仿真研究。在符合该转向机构运动学原理以及车辆转向阿克曼原理的基础上,建立了等长约束方程,由切贝雪夫间隔确定了精确转向角,进一步编制了相应的设计计算程序,从而实现了对其尺寸参数的解析求解。在此基础上,利用ADAMS软件对转向系统进行运动仿真分析,给出了仿真实例,并进行了机构转向误差分析,验证了该设计方法的正确性,得到了不同车辆尺寸参数与转向精度的关系,可供多轮重型车辆实际设计时参考。The analysis and simulation about the design and analysis of the center-arm-Watt-Ⅱ-linkage-type steering mechanism for heavy vehicle with multiple wheels were processed by using new type of function approximation method. The way of design for this kind of steering mechanism was proposed,based on the kinematical synthesis and Ackerman principle. The geometric dimensions of all linkages for this type of steering mechanism can be obtained by the method efficiently. The simulation results used ADAMS show that it is efficient, and then the relationship between the dimensional parameter and the steering precision for the vehicle is gained. The results can be used in the design of varies of heave vehicles with multiple wheels.

关 键 词：重型车辆 转向机构 阿克曼原理 仿真 

分 类 号：U46[机械工程—车辆工程]