基于 EASY5的推土机液压驱动系统仿真

摘要

对推土机液压驱动系统原理进行分析，引入EASY5软件，对推土机行驶液压驱动系统进行计算机建模及仿真。以三一重工TQ230A推土机为例，通过仿真对系统在3800 Nm载荷下的稳定性及系统各元件参数变化进行了分析。分别通过改变主泵和马达的排量，得到相关系统各元件参数变化曲线，为现实推土机工作状态控制提供了参考依据。%Based on topology optimization theory and finite element method ,the topology optimization of a trailer wheel hub was conducted by using OptiStruct software .After the optimum material distribution scheme was obtained ,the hub was redesigned .The results show that the stiffness and strength of the optimized hub is better than that of the original one ,and the weight is lighter too .