基于Recurdyn的新型剪叉式液压升降台的动力学仿真及分析

摘要

基于多体动力学分析软件Recurdyn建立了新型剪叉式液压升降平台的虚拟样机模型，并在不同载荷下进行了动力学仿真，通过仿真得出了液压缸的受力情况和浮动平台的位移、速度等相关运动特性。仿真分析结果表明，随作业平台高度增加，机构的稳定性变差，同时液压缸输出力波动加剧，分析结果对该升降平台的机械结构改进和液压系统设计优化提供了参考。%By using Recurdyn, Multi⁃body dynamics analysis software, a virtual prototype was established for a new type of hy⁃draulic fork lifting platform, and the dynamic simulation was made in the case of different loads. Through the simulation, the force of hydraulic cylinder and the motion characteristics of the floating platform were studied, such as displacement, velocity and so on. Simu⁃lation results show that the stability of scissors mechanism becomes poor and the output force of hydraulic cylinder fluctuates increasely with the height of platform increasing. And analysis results provide references for the structural optimization design and control scheme of the mechanism system.