多轴车辆轴荷的分配与影响因素研究

车轴轴荷是多轴车辆底盘设计和整车动力学分析的必备参数。文章采用力学方法,基于车架为刚性体,以某九轴全地面起重机为算例,建立了九轴轴荷的计算模型,并采用有限元仿真方法和模型计算结果进行了对比,证明该计算模型的合理性。通过此模型对轴距、弹簧刚度、以及路面凸起高度等因素对全地面起重机的各轴轴荷分配的影响进行了分析与探讨,结论表明了其对该型全地面起重的底盘设计具有指导意义。

Study on Rational Distribution and Influencing Factors of the Axle Load for Multi-axle Vehicles

Axle shaft load is an essential parameters of the chassis design and vehicle dynamics analysis of a nineshaft all terrain crane.The axle load calculation model was adopted to get the axle load of a nine-shaft all terrain crane.The simulation based on the FEM analysis for a nine-shaft all terrain crane was made to verify the rationalization of the model and the calculation method.It can be used to get the axle load in consideration the axle distance,Spring stiffness and the convexity of road for nine-shaft all terrain crane.It also offers guidance for a nine shaft all terrain crane designing and assignment.