动力模块车组液压悬挂系统的分组建模  

Grouping Modeling for Hydraulic Suspension System of Powered Modular Vehicle Groups

作　　者：陈伟[1] 郭为忠[1] 高峰[1] 

机构地区：[1]上海交通大学机械系统与振动国家重点实验室,上海200240

出　　处：《机械工程学报》2012年第5期108-115,共8页Journal of Mechanical Engineering

基　　金：国家高技术研究发展计划(863计划;2009AA044101);机械系统与振动国家重点实验室(MSV-ZD-2010-02);教育部新世纪优秀人才支持计划(NCET-10-0567)资助项目

摘　　要：大型动力平板车及其动力模块车组是重载超大型设备与物件运输的核心装备。为实现均载以防部分车轮超载或悬空,动力模块车组的液压悬挂系统采用分组控制模式,每组液压悬挂油路联通作为载货台的一个支撑,进而形成对载货台的多点支撑。为获得动力模块车组在复杂地形上的允许装载区域,建立其多点支撑力学模型,利用力等效原理求解各组作用于载货台的等效支撑点,对多点支撑产生的静不定问题采用弹性支撑的变形协调原则加以解决。利用多点支撑形成的支撑边界求解载货台的抗倾覆区,利用各组悬挂的承载极限求解其安全承载区,通过抗倾覆区与安全承载区的求交运算获得相应条件下动力模块车组的允许装载区域。基于允许装载区域的建模方法,给出分组模式的选用准则,通过算例分析,验证了建模方法的可行性。Powered platform vehicles and powered modular vehicle groups are fundamental tools to transport huge-size heavy-duty parts and equipments.In order to keep uniform loading and avoid wheels overloaded or hung,the hydraulic suspension system is decomposed into groups that the cylinders of one group are connected and equivalent to one support and therefore a multi-point support mode is formed for loading platform.A multi-point supporting force model is built in order to find out the allowable loading area of a powered modular vehicle group on a complicated terrain,and the equivalent supporting point of each group applied on loading platform is determined by force equivalent principle.The statically indeterminate problem introduced by multi-point support is solved based on the elastic support＇s deformation harmonization principle.The loading area is achieved by intersection of anti-capsizing area derived from the supporting boundary formed by supporting points and securing area generated by loading limit of each group.Based on allowable loading area modeling,the criterion is set up to determine grouping pattern.Case study illustrates the presented idea.

关 键 词：动力模块车组 分组模式 允许装载区域 多点支撑 

分 类 号：TH156[机械工程]