液压伺服阀控缸动态特性数学建模及仿真分析
Mathematics Modeling and Simulation Analysis of Dynamic Characteristics forHydraulic Cylinder Controlled by Servo-valve
作者：江桂云(重庆大学 机械工程学院，重庆 400044)；王勇勤(重庆大学 机械工程学院，重庆 400044)；严兴春(重庆大学 机械工程学院，重庆 400044)
Author：(College of Mechanical Eng., Chongqing Univ., Chongqing 400044,China)；(College of Mechanical Eng., Chongqing Univ., Chongqing 400044,China)；(College of Mechanical Eng., Chongqing Univ., Chongqing 400044,China)
收稿日期：2008-03-23 年卷（期）页码：2008,40(5):195-198
期刊名称：工程科学与技术
Journal Name：Advanced Engineering Sciences
关键字：液压伺服控制；阀控缸；数学模型；MATLAB；仿真
Key words：hydraulic servo control; cylinder controlled by servo-valve; mathematics model; MATLAB；simulation
基金项目：国家重大技术装备研制资助项目（ZZ01-13A-02-01）;重庆市自然科学基金(CSTC,2006BB3173)
中文摘要
在液压阀控缸的基础上，改变负载就能获得不同的液压伺服控制系统。分析了阀控非对称缸的负载压力—流量特性，建立了阀控缸流量连续性方程和液压缸的力平衡方程，推导了阀控缸位置控制系统动态特性的数学模型。采用MATLAB软件的SIMULINK模块对阀控缸位置控制系统进行动态特性仿真分析，并进行了实验验证，结果表明：所建数学模型及仿真结果接近实际工况，能满足不同液压伺服控制系统负载特性的分析需要。
英文摘要
Different hydraulic servo control system would be obtained through changing load based on cylinder controlled by servo valve.Load pressure-flux characteristics of asmmetrical cylinder controlled by servo-valve was analyzed. Flux continuity equation of cylinder controlled by servo valve and the balance equation of hydraulic cylinder were pat fprward,The dynamic characteristics mathematics model for position control system in cylinder controlled by servo-valve was deduced .SIMULINK module of MATLAB language software was used to carry through dynamic characteristics simulation analysis for position control system in cylinder controlled by servo-valve.The results were validated through experiment，and showed that mathemati model and simulation results were closed to practice work situation,and could satisfy analysis needs to different hydraulic servo control system load characteristics
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