多层压机液压伺服系统性能仿真分析  

Performance Simulation Analysis of Multilayer Press Hydraulic Servo System

作　　者：刘书霞[1] 花军[1] 陈光伟[1] 周修理 丁强 

机构地区：[1]东北林业大学机电工程学院

出　　处：《林产工业》2017年第6期16-20,共5页China Forest Products Industry

基　　金：国家林业局林业科学技术推广项目,2016-34;哈尔滨市创新人才研究专项资金项目,2014RFXXJ020

摘　　要：分析多层压机液压伺服系统组成及加压过程,以多层压机液压伺服系统为研究对象,根据多层压机相关特性参数分析系统负载特性,建立以压力为输出的多层热压液压伺服系统的数学模型;应用MATLAB/Simulink对液压伺服系统进行仿真,得到系统伯德图和阶跃响应曲线,根据伯德图和阶跃响应曲线对液压伺服系统性能(稳定性、快速性及准确性)进行分析,结果表明系统稳定性良好;针对液压伺服系统性能(快速性和准确性)存在的缺陷进行了改进设计,加入PID控制器环节,改善了液压伺服系统的响应速度和准确性。Authors analyze the muhilayer press hydraulic servo system and the compression process of muhilayer hot-press hydraulic servo system, analyze load characteristic based on the related parameters of muhilayer press, and establish the mathematical model with pressure for the output of multi-layer thermal hydraulic servo system. Simulating hydraulic servo system by MATLAB/Simulink soft to get bode diagram and step response curve, according to the bode diagram and step response curve to analyze system performance, such as stability, rapidity and accuracy. The results show that the hydraulic servo system is stable. Join the PID controller to cover the existing defects of the system performance, rapidity and accuracy for example, of the hydraulic servo system to improve the design, which improves the response speed and accuracy of the system.

关 键 词：多层压机 液压伺服系统 建模 系统性能 仿真分析 

分 类 号：TP271.31[自动化与计算机技术—检测技术与自动化装置]