基于HyPneu的混凝土泵车臂架液压系统仿真分析

Simulation Analysis Based on HyPneu for Concrete Pump Truck’s Arms

摘要: 呈现混凝土泵车的发展现状，同时介绍流体仿真软件HyPneu的功能，详细分析混凝土泵车臂架液压系统的工作原理，运用HyPneu软件建立混凝土泵车臂架液压系统的工作原理图，对混凝土泵车臂架系统伸展过程进行动态仿真，得到了各个臂架液压缸的压力曲线和活塞位移曲线，用仿真软件对臂架液压缸尺寸进行优化设计，优化后的尺寸能减少液压缸缸杆完全行程时间，仿真结果与实验数据吻合，验证了液压系统设计的合理性，仿真结果对混凝土泵车臂架液压系统的设计有一定的指导作用。

Abstract: We present the development of the concrete pump truck, and introduce the fluid simulation soft-ware HyPneu function. We analyze the working principle of the hydraulic system of the concrete pump truck’s arm, using HyPneu software to build the schematic diagram of the hydraulic system, simulating the stretching process of the concrete pump truck’s arm system, obtaining the pressure and displacement curve of each arm cylinder. At the same time, we optimize the size of each arm cylinder with HyPneu, and the optimized size can reduce the full stroke time of each arm cylinder. The simulation results agree well with the experimental data, verifying the rationality of hydraulic system design. The simulation results are helpful to the design of the hydraulic system of the con-crete pump truck’s arm.