锻压技术

60MN水压机油控水系统建模及控制特性研究

英文标题：Study on fluid power transmission system modeling and control characteristics of 60 MN hydraulic press

作者：俞滨姚静冯景昌李雪冰孔祥东

分类号：TG315;TH137

出版年,卷(期):页码：2015,40(5):71-78

摘要：

介绍了60 MN水压机的系统组成及工作原理，并采用机理建模的方法建立了水压机油控水系统的数学模型及控制框图。通过实验与仿真对比，分析空载大行程、重载小行程及高频小行程3种典型工况下的水压机油控水系统控制特性，并实验验证数学模型的准确性，进而研究水系统管道长度、主分配器手柄死区角度及活动横梁质量对水压机油控水系统控制性能的影响。研究表明，60 MN水压机在以上3种典型工况下具备较好的工作性能，若希望进一步提高水压机油控水系统的响应速度，可以从电液伺服系统和水系统两方面进行控制及优化设计。其中水系统的管长、主分配器死区、活动横梁质量均会对水压机油控水的控制性能产生不同程度的影响，在水压机结构优化设计时应重点考虑。

The composition and working principle of 60 MN hydraulic press system were introduced, and the mathematical model and control flow chart of fluid power transmission system on 60 MN hydraulic press were established by the mechanism. The control characteristics under three typical working conditions including no θ load with long stroke, heavy load with short stroke and high frequency with short stroke were analyzed by comparing the experiment with the simulation, and the accuracy of mathematical model was verified experimentally. Further more, it analyzed the influences of the length of tube, the dead zone angle of main distributor handle and the quality of moving beam in the hydraulic system on the control performance of fluid power transmission system. The study shows that 60 MN hydraulic press is of good working performance under the above three typical working conditions. The improvement on the response speed of fluid power transmission system can be realized by controlling and optimizing the design of the electro hydraulic servo system and water system. However, the length of tube, the dead zone angle of main distributor handle and the quality of moving beam have different degrees of influences on control characteristics, which should be specially considered in the optimization of the hydraulic press structure.

基金项目：

河北省自然科学基金青年科学基金资助项目(E2014203247)；燕山大学博士基金项目（B930）

俞滨(1985-)，男，博士，讲师;通讯作者：孔祥东(1959-)，男，博士，教授，博士生导师

参考文献：

［1］刘社英,张宏. 浅谈我国锻造液压机的发展过程和发展趋势[J]. 液压气动与密封,2010,(9):1-3.Liu S Y,Zhang H.Discussion on the development process of forging hydraulic press and trends[J]. Hydraulics Pneumatics & Seals,2010,(9):1-3.
［2］高俊峰. 我国快锻液压机的发展与现状[J]. 锻压技术,2008,33(6):1-5.Gao J F. Resent status and development of high-speed forging hydraulic press in our country[J]. Forging & Stamping Technology,2008,33(6):1-5.
［3］刘立新. 我国液压机技术的发展简介及趋势[J]. 宁夏机械,2009,(4):4-7.Liu L X. Introduction of development and trend of hydraulic press technology in China[J]. Ningxia Machine,2009,(4):4-7.
［4］姚保森. 我国锻造液压机的现状及发展[J]. 锻压装备与制造技术,2006,41(3):84-86.Yao B S. The present situation and development of Chinese hydraulic forging press[J]. China Metal Forming Equipment & Manufacturing Technology,2006,41(3): 84-86.
［5］汤迎红，刘忠伟，青先麟. 巨型模锻液压机同步性能影响因素的分析[J]. 锻压技术,2014,39 (4):77-81.Tang Y H, Liu Z W, Qing X L. Analysis of the factors affecting the performance of the synchronization system for giant forging hydraulic press[J]. Forging & Stamping Technology,2014,39(4): 77-81.
［6］Yao J. Electro-hydraulic servo control system modeling and simulation of 50 MN water press for free forging[J]. Journal of System Simulation,2007，(19): 3766-3769.
［7］吴生富. 150 MN锻造液压机本体组合结构研究[D]. 秦皇岛: 燕山大学,2006.Wu S F. Study on Composite Structure of Body for 150 MN Hydraulic Press[D].Qinhuangdao:Yanshan University,2006.
［8］郝立文. 120 MN自由锻水压机操作系统改造[J]. 锻压技术，2014,39(12)：76-78.Hao L W. Improvement of control system for 120 MN free forging hydraulic press[J]. Forging & Stamping Technology,2014,39(12)：76-78.
［9］谭建平，黄长征，周俊峰，等. 300 MN模锻水压机操纵系统改造[J]. 锻压技术，2007,32 (3)：80-84.Tan J P,Huang C Z,Zhou J F,et al. Improvement of control system of 300 MN die forging hydraulic press[J]. Forging & Stamping Technology,2007,32 (3):80-84.
［10］王正林,王胜开. MATLAB/Simulink与控制系统仿真[M]. 北京: 电子工业出版社,2008.Wang Z L,Wang S K. MATLAB/Simulink and Simulation of Control System[M]. Beijing: Publishing House of Electronics Industry,2008.
［11］薛定宇. 控制系统计算机辅助设计—MATLAB语言与应用[M]. 北京:清华大学出版社,2006.Xue D Y. Computer Aided Control System Design and Application of MATLAB Language[M]. Beijing: Tsinghua University Press,2006.
［12］姚静,孔祥东,单东升,等. 50 MN自由锻造水压机电液伺服系统负载特性分析[J]. 机床与液压,2006，34(8):15-18.Yao J,Kong X D,Shan D S,et al. The Electro-hydraulic servo control system load characteristic analysis of 50 MN water press for free forging[J]. Machine Tool & Hydraulics,2006，34(8):15-18.

服务与反馈：

【文章下载】【加入收藏】