锻造机驱动液压缸同步控制仿真

锻造液压机在工作过程中需要有良好的刚性，因此一般采用两个液压缸进行同步驱动。为保证锻造液压机在工作过程中两个驱动液压缸具有精确的同步性，采用BP神经网络PID自适应控制方式对锻造液压机驱动液压缸进行同步控制。使用AMESim与MATLAB搭建锻造液压机仿真模型，针对两个驱动液压缸所受负载恒定、负载连续变化以及负载阶跃变化工况时，对两个驱动液压缸的同步性能进行分析。仿真结果表明：在锻造液压机两个驱动液压缸各种受力情况下，该系统均能较好地实现两个驱动液压缸的同步控制，并且位移误差最大仅0.6 mm,满足锻造液压机的工作需求。该系统具有较高的同步控制精度以及较好的鲁棒性。

Synchronous Control Simulation of Driven Hydraulic Cylinder of Forging Machine

Forging hydraulic press needs good rigidity during working process,so two hydraulic cylinders are generally driven synchronously.In order to ensure precise synchronization of the two driving hydraulic cylinders in the working process of the forging hydraulic press,BP neural network PID adaptive control method was adopted to synchronously control the driving hydraulic cylinders of the forging hydraulic press.AMESim and MATLAB were used to build the simulation model of the forging hydraulic press.The synchronization performance simulation of the two driving hydraulic cylinders was carried out under the conditions of constant load,continuous changing load and step changing load.The simulation results show that under various stress conditions of the two driving hydraulic cylinders of the forging hydraulic press,the system can better realize the synchronous control of the two driving hydraulic cylinders,and the maximum displacement error is only 0.6 mm,which meets the work of the forging hydraulic press.The system has good synchronization control precision and robustness.