The paper studies the dynamic characteristics of the articulated-frame vehicles with hydraulic steering system, such as the driving stability problems including direction stability and lateral roll stability, turning behavior problems with load, influence and improvement on the above dynamic characteristics caused by design parameters. Through the research the dynamic characteristics can be further deeply understood. It has also effort to promote applications of modern dynamic methods in some problems, to establish a theoretic foundation for some optimum design problems such as whole machine, pivot-point, hydraulic steering system and tire, to guide improvement of present machines and development of new machiness. It also promotes application of CADCAE in developing of articulated-frame vehicles.
本文研究工作的意义在于，通过研究，可以对铰接装载机带载转向行驶整车运动姿态问题，铰接车辆行驶稳定性等动态特性问题得到深入了解，加强对轮胎力学特性及液压转向机构力学特性的了解，促进现代动力学方法在有关问题中的应用，进一步了解铰接车辆整车设计参数与整车动态特性的关系，为铰接车辆整车优化设计、液压转向机构设计、轮胎选型及转向铰点优化设计等设计问题奠定理论基础，为铰接车辆的动态设计奠定理论基础，对现有产品相关性能的改善及新产品的开发提供具有普遍性的理论指导，促进CADCAE技术在铰接车辆开发设计中的应用。