考虑侧偏角影响的双前桥转向角匹配研究  

Research on steer angle for double front axles steering systems considering with slip angle

作　　者：覃刚[1] 孙营[1] 

机构地区：[1]华中科技大学机械科学与工程学院,湖北武汉430074

出　　处：《华中科技大学学报（自然科学版）》2011年第12期18-21,共4页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学重点基金资助项目(60736019)

摘　　要：研究了双前桥转向系统中,整车的侧向加速度所造成的车轮侧偏角对实际车轮转向角的影响,提出了考虑侧偏角影响时双前桥转向的阿克曼条件.首先推导了存在车轮侧偏角时双前桥各车轮转向角之间的变化规律,提出了包含车轮侧偏角在内的阿克曼转角公式;其次以某双前桥转向的重型卡车为应用对象,将所推导的设计公式应用于该重型卡车的设计中,建立相应的多体动力学模型,借助于Adams软件的仿真分析对各车轮转向角进行了设计;最后通过实车试验验证了经修正后的阿克曼转角公式的正确性.What the slip angle caused by lateral acceleration has influence on the actual steer angle for double front axles steering system was mainly researched,and the Ackerman law of double front axles considering the influence of slip angle was proposed.Firstly,the variation of each wheel steer angle in double front axles truck considering slip angle was derived,and the Ackerman law containing slip angle was proposed.Secondly,using the proposed theory on a double front axles truck,the multibody dynamics model was built,and the wheel steer angle was designed based on the software Adams.Lastly,the real vehicle experiment validated the correctness of the amended Ackerman law.

关 键 词：重型卡车 双前桥转向 车轮侧偏角 阿克曼条件 磨损 

分 类 号：TH213.6[机械工程—机械制造及自动化]