基于AMESim和Simulink联合仿真的轧机压下系统分析

为实现轧机液压压下系统的电液一体化虚拟样机设计,提出基于Simulink与AMESim联合仿真技术的建模与仿真方案,根据轧机各辊之间的作用关系,建立了基于AMESim的轧机液压压下系统的质量弹簧模型和液压位置伺服系统模型,用MATLAB/Simulink建立了基于积分分离的PI反馈控制系统模型,最终构建了轧机压下系统联合仿真模型。在Simulink平台设计了干扰观测器抑制噪声方法,通过联合仿真分析,有效抑制了外部干扰噪声造成的不稳定性,提高了控制精度。联合仿真研究表明,干扰观测器能够抑制干扰噪声影响,该虚拟样机可应用于轧机压下系统分析。

Mill Hydraulic Pressure System Analysis Based on AMESim and Simulink Co-simulation

To achieve the electro-hydraulic mill hydraulic pressure system virtual prototype integration design, modeling and simulation methods based on Simulink and AMESim co-simulation technology are put forward. According to the role of the relationship between each roller mill, a spring-mass model and hydraulic position servo control models are set up. MATLAB/Simulink is used to establish a feedback control system model with integral separation PI controller, and finally build a mill hydraulic pressure system co-simulation model. Disturbance observer noise suppression method is designed by Simulink platform. By the joint simulation analysis, the instability caused by external interference is inhibited effectively, and the control accuracy is improved. Joint simulation study shows, the disturbance observer can be used to eliminate the effects of noise and the virtual prototype can be applied to the mill hydraulic pressure system.