稳定土拌和机全轮转向系统试验及仿真研究  

Test and Simulation of All-Wheel Steering System for Stabilized Soil Mixer

作　　者：马丽英[1] 归少雄[2] 曹源文[1] 

机构地区：[1]重庆交通大学机电与汽车工程学院,重庆400074 [2]重庆交通大学应用技术学院,重庆400074

出　　处：《重庆交通大学学报（自然科学版）》2011年第6期1412-1414,共3页Journal of Chongqing Jiaotong University(Natural Science)

基　　金：交通运输部西部交通建设科技项目(200631879846)

摘　　要：在分析稳定土拌和机全轮转向试验平台工作原理的基础上,对四轮转向各个工况进行试验,绘制出系统的伯德图,确定了系统的传递函数;利用MATLAB/SIMULINK软件对转向系统进行动态仿真。结果表明:系统具有的幅值裕度为13.4 dB,相位裕度为48.9°,显示该稳定土拌和机转向试验系统具有一定的储备;试验系统的响应速度较快,系统的稳定性符合要求;四轮转向比传统的二轮转向转弯半径减小约20%左右。Based on the analysis of the all-wheel steering test platform for stabilized soil mixer,a series of tests for each steering working condition are carried out.The transfer function of the system is determined,and Bode diagram is also drawn out.Meanwhile,the system is simulated dynamically by use of MATLAB/SIMULINK software.The research results show that the amplitude margins and phase margins of the steering system are respectively 13.4dB and 48.9°,which meets the stability reserve requirements of the steering system for stabilized soil mixer;the fast response speed and the stability of experimental system also meet the requirement;what＇s more,all-wheel steering decreases about 20% turning radius than 2 wheel steering does.

关 键 词：全轮转向 试验研究 仿真分析 

分 类 号：U416.21[交通运输工程—道路与铁道工程]