Transactions of Materials and Heat Treatment

Title：Research on control strategy and modeling of speed control system for extrusion press

Authors： YANG Wu TAN Jian-ping CHEN Hui

Unit： Central South University

KeyWords： extrusion press throttle system modeling control strategy

ClassificationCode：TG315

year,vol(issue):pagenumber：2013,38(6):150-155

Abstract：

Taking the 200 MN extrusion press as the research object, the complete model of speed control system was established using a kind of applicable control strategy for variable load and the existing throttle governing system to resolve the problem of speed control of movable beam in the extrusion process,the speed response curves with different opening degrees of throttle value and different loads were obtained. The deficiency of traditional PID control was analyzed, and the superposition fuzzy PID controller was designed. By simulation to the system with Simulink, the dynamic speed curve was obtained, and the speed control under different strategies was contrasted. The results show that the fuzzy PID control can effectively control the extrusion speed overshoot and stability.

Funds：

“高档数控机床与基础制造装备”国家科技重大专项资助项目（2009ZX04005-031）

Reference：

［1］杨大祥，杨红娟. 125MN双动铝挤压机液压控制系统的研制及其技术特点[J].铝加工，2006，（3）：35-38.Yang D X, Yang H J. The development of the hydraulic control system and technical characteristics of 125MN double-action aluminum extrusion press[J]. Aluminum Processing, 2006，（3）：35-38.
［2］韩泓.铝挤压机挤压速度控制[J].锻压技术，2012，37（2）:103-105. Hang H. Extruding speed control of aluminum extrusion press[J]. Forging & Stamping Technology, 2012，37（2）:103-105.
［3］文跃兵.125MN挤压机动梁速度控制系统研究[D].长沙：中南大学，2008. Wen Y B. Research on Speed Control Yystem of Moving Beam in 125MN Extrusion Press[D]. Changsha: Central South University, 2008.
［4］俞兴民，齐乐华，苏力争，等. 液压机调速系统改进设计[J].液压与气动，2006，（3）:63-64. Yu X M, Qi L H,Su L Z，et al. Improved design of hydraulic-machine speed control system [J]. Hydraulic and pneumatic, 2006，（3）:63-64.
［5］司徒忠，李庆亮，朱钒. 高速液压机智能控制方法研究[J].机床与液压，1999，（5）:14-17. Si T Z, Li Q L, Zhu F. Research on intelligent control methods in High speed hydraulic press [J]. Machine Tool & Hydraulics, 1999，（5）:14-17.
［6］彭勇刚，韦巍. 伺服电动机直接驱动定量泵液压系统在精密注塑中的应用及其控制策略[J].机械工程学报，2011,47（2）:173-179. Peng Y G, Wei W. Application and control strategy of servo motor driven constant pump hydraulic system in precision injection molding[J].Chinese Journal of Mechanical Engineering, 2011,47（2）:173-179.
［7］张智华. 铝型材挤压机主缸速度比例控制系统[J].流体传动与控制，2005，（6）:22.Zhang Z H. The main cylinder speed proportional control system in aluminum extrusion press [J].Fluid Power Transmission and Control, 2005，（6）:22.
［8］Kim M Y, Lee C O. An experimental study on the optimization of controller gains for an electro-hydraulic servo system using evolution strategies [J]. Control Engineering Practice, 2006, 43(14): 137-147.
［9］Li S, Song Y. Dynamic response of a hydraulic servo-valve torque motor with magnetic fluids [J]. Mechatronics, 2007, 36(4): 1-6.
［10］黄长征.300MN模锻水压机动梁驱动系统动态响应特性及速度控制研究[D].长沙：中南大学，2007.Huang C Z. Research on Dynamic Response Characteristic and Speed Control of Moving Beam Drive System for 300MN Die Forging Hydraulic Press[D].Changsha: Central South University, 2007.
［11］Lucente G, Montanari M, Rossi C. Modeling of an automated manual transmission system[J]. Mechatronics, 2007, 17(2/3): 73-91.
［12］黄长征，谭建平.300MN模锻水压机动梁驱动系统锻压速度动态响应特性[J].中南大学学报：自然科学版，2008，39（5）：1023-1028.Huang C Z,Tan J P. Forging speeds response characteristic of moving beam drive system for 300 MN die forging hydraulic press[J]. Journal of Central South University:Science and Technology Edition, 2008，39（5）：1023-1028.
［13］薛定宇.控制系统计算机辅助设计——MATLAB语言与应用[M].2版.北京：清华大学出版社，2006.Xue D Y. Computer Aided Control Systems Design Using MATLAB Language[M].The Second Edition. Beijing:Tsinghua University Press,2006.

Service：

【This site has not yet opened Download Service】【Add Favorite】