全液压矫直机伺服系统动态特性的联合仿真研究

Dynamic characteristics of servo system for full hydraulic straightening machine based on joint simulation

矫直机工作过程中,由于板型缺陷不同,矫直时所需的矫直力不同。在对矫直机液压系统进行模拟仿真时,为更好的对这一变载荷情况进行仿真,本文建立一种AMEsim/Simulik联合仿真模型,加入了二级控制中系统参数的在线调整。采用参考模型的模糊自适应PID控制策略对参数进行在线调整建立联合仿真模型。通过对比Simulink,AMEsim和AMEsim/Simulik联合仿真三种仿真方法,结合现场采集数据,得出采用联合仿真时结果误差最小。其仿真结果更贴近实际情况,能够为理论研究提供最真实的数据资料。

During the work of the straightening machine,the straightening force required for straightening is different due to the different plate defects. In order to better simulate the variable load situation,this paper presents a method to introduce the function of the on-line adjustment of the controller parameters into the simulation model in the simulation of the hydraulic system of the straightening machine. Method. The fuzzy adaptive PID control strategy based on the reference model is used to adjust the parameters online when establishing the joint simulation model. By comparing Simulink,AMEsim and AMEsim/Simulik simulations with three simulations,combined with the data collected in the field,the results show that the error is minimized when using joint simulation. The simulation results are closer to the actual situation,can provide the most realistic data for theoretical research.