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浙江大学学报(工学版)
J4  2012, Vol. 46 Issue (6): 1027-1033    DOI: 10.3785/j.issn.1008-973X.2012.06.011
机械工程     
基于LuGre模型的气缸摩擦力特性研究
孟德远, 陶国良, 刘昊, 陈剑锋
浙江大学 流体传动及机电控制国家重点实验室,浙江 杭州 310027
Analysis of friction characteristics of pneumatic cylinders
based on LuGre model
MENG De-yuan, TAO Guo-liang, LIU Hao, CHEN Jian-feng
State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, China
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摘要：

为满足高精度电-气比例/伺服控制系统设计时基于模型的摩擦力补偿需要,基于LuGre模型建立气缸的动态摩擦模型.搭建了一个新型的气缸摩擦力测试台,通过测量活塞匀速运动时摩擦力与活塞速度的关系辨识了模型中的静态参数；针对在时域估计模型动态参数存在诸多困难,提出将活塞的运动方程在平衡点附近线性化,通过测量活塞位移和驱动力之间的频率响应函数来间接估计动态参数值.测试了气缸在不同腔内压力下的摩擦力特性，结果表明：库伦摩擦力、最大静摩擦力和黏性摩擦系数与压力近似成线性关系,而Stribeck速度和模型动态参数基本不受气缸两腔压力变化影响.正弦变化力激励下的活塞位移计算曲线和实验结果对比表明,参数估计准确,该模型能很好的描述气缸的摩擦力特性.
Abstract:

The LuGre dynamic friction model was introduced to fulfill the requirement of a good friction model of pneumatic cylinders in applications with high precision positioning and low velocity tracking. An experiment setup used for the friction force measurements was developed and the static and dynamic parameters associated with the model were estimated separately. The static parameters were estimated by construction of the frictionvelocity map measured during constant velocity motions. And the second-order description of the linearized LuGre model in the stiction regime was used to perform the frequency domain identification of the dynamic parameters. Furthermore, the friction forces of cylinder with different chamber pressures were tested.The Coulomb friction level, the stiction force level and the viscous friction coefficient increased with the chamber pressure and the pressure difference between the cylinder chambers, while the Stribeck velocity and the dynamic parameters may be considered as independent of the pressure variation in chambers. Experimental results showed that the proposed model with the estimated model parameters can predict the friction force accurately.
出版日期: 2012-07-24
:  TH 117.1  
基金资助:

 国家自然科学基金资助项目（50775200）.
通讯作者: 陶国良,男,教授,博导.     E-mail: gltao@zju.edu.cn
作者简介: 孟德远(1982—),男,讲师,博士,从事气动伺服控制研究.E-mail:tinydream@zju.edu.cn
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引用本文:

孟德远, 陶国良, 刘昊, 陈剑锋. 基于LuGre模型的气缸摩擦力特性研究[J]. J4, 2012, 46(6): 1027-1033.

MENG De-yuan, TAO Guo-liang, LIU Hao, CHEN Jian-feng. Analysis of friction characteristics of pneumatic cylinders
based on LuGre model. J4, 2012, 46(6): 1027-1033.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2012.06.011    或    http://www.zjujournals.com/eng/CN/Y2012/V46/I6/1027

［1］ 刘丽兰,刘宏昭,吴子英,等.机械系统中摩擦模型的研究进展［J］.力学进展,2008,38(2): 201-213.
LIU Lilan, LIU Hongzhao, WU Ziying, et al. An overview of friction models in mechanical systems ［J］.Advance in Mechanics, 2008, 38(2): 201-213.
［2］ ARMSTRONG B, DUPONT P, CANUDAS C. A survey of models, analysis tolls and compensation methods for the control of machines with friction ［J］. Automatica, 1994, 30(7): 1083-1138.
［3］ 陶国良,王宣银,杨华勇.气动比例/伺服位置控制系统的摩擦力特性研究［J］.液压气动与密封,2001, 86(2): 9-11.
TAO Guoliang, WANG Xuanyin, YANG Huayong. Research on the friction characteristic of pneumaticservo positioning system ［J］. Hydraulics Pneumatics ＆ Seals, 2001, 86(2): 9-11.
［4］ SHU N, BONE G M. High steadystate accuracy pneumatic servo positioning system with PVA/PV control and friction compensation ［C］ ∥ Proceedings of the 2002 IEEE International Conference on Robotics ＆ Automation. Washington: IEEE, 2002: 2824-2829.
［5］ RICHER E, HURMUZLU Y. A high performance pneumatic force actuator system: part I—nonlinear mathematic model ［J］. Journal of Dynamic Systems, Measurement, and Control, 2000, 122: 416-425.
［6］ RAO Z, BONE G M. Nonlinear modeling and control of servo pneumatic actuators ［J］. IEEE Transactions on Control Systems Technology, 2008, 16(3): 562-569.
［7］ BELFORTE G, ALFIO D, RAPARELLI N. Experimental analysis of friction forces in pneumatic cylinders ［J］. The Journal of Fluid Control, 1989, 20(1): 42-46.
［8］ BEATER P. Pneumatic drives ［R］.  Berlin, Heidelberg: SpringerVerlag, 2007.
［9］ 张百海,程海峰,马延峰,等.汽缸摩擦力特性实验研究［J］.北京理工大学学报,2005,25(6): 483-484.
ZHANG Baihai, CHENG Haifeng, MA Yanfeng, et al. Study on friction characteristics of pneumatic cylinders ［J］.Transactions of Beijing Institute of Technology, 2005, 25(6): 483-484.
［10］ CANUDAS C, OLSSON H, ASTROM K J, et al. A new model for control of systems with friction ［J］. IEEE Transactions on Automatic Control, 1995, 40(3): 419-425.
［11］ CANUDAS C, LISCHINSKY P. Adaptive friction compensation with partially known dynamic friction model ［J］. International Journal of Adaptive Control and Signal Processing, 1997, 11: 65-80.
［12］ KHAYATI K, BIGRAS P, DESSAINT L A. LuGre modelbased friction compensation and positioning control for a pneumatic actuator using multiobjective outputfeedback control via LMI optimization ［J］. Mechatronics, 2009, 19: 535-547.
［13］ 陈剑锋,刘昊,陶国良.基于LuGre摩擦模型的气缸摩擦力特性实验［J］.兰州理工大学学报,2011,36(3): 1-5.
CHEN Jianfeng, LIU Hao, TAO Guoliang. Experiment on friction characteristics of pneumatic cylinders based on LuGre model ［J］. Journal of Lanzhou University of Technology, 2011, 36(3): 1-5.
［14］ MADI M S, KHAYATI K, BIGRAS P. Parameter estimation for the LuGre friction model using interval analysis and set inversion ［C］ ∥ Proceedings of the 2004 IEEE International Conference on Systems, Man and Cybernetics. Hague: IEEE, 2004: 428-433.
［15］ HENSEN R, MOLENGRAFT M, STEINBUCH M. Frequency domain identification of dynamic friction model parameters ［J］.IEEE Transactions on Control Systems Technology, 2002, 10(2): 191-196.
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