Sliding mode synchronous control for fixture clamps system driven by hydraulic servo systems

Abstract

Although the two sides clips of a fixture clamps system have the same driving mechanisms, the synchronous error between the dual drivers of the two clips is generated by non-balanced forces. With position variation of clips and various uncertainty disturbances during the working process, the synchronous movement of the two clips is difficult. In the current paper, sliding mode synchronous controller is designed for fixture clamps system which is driven by hydraulic servo system. Setting the load dynamic error of one driver as external disturbance to the other driver, the departure from synchronization caused by the parameter variation and external forces between two clips is limited. The stability of the control system and the convergence of synchronous tracking errors are guaranteed by Lyapunov stability theory. Simulations illustrate the applicability of the proposed approach.

Keywords

fixture clamps system sliding mode control synchronous control hydraulic servo system

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References

Schmidt

D. F.

Paplinski

A. B.

Lowe

G. S.

Adaptive control of hydraulic systems with MML inferred RBF networks. In Proceedings of the 2005 IEEE International Conference on Robotics and automation, Barcelona, Spain, 2005, pp. 2362–2375.

Zhu

W.-H.

Dupuis

Piedboeuf

J. C.

Adaptive output force tracking control of hydraulic cylinders. In Proceedings of the 2004 American Control Conference, Boston, MA, 2004, pp. 970–976.

Guan

Zhu

Adaptive time-varying sliding mode control for hydraulic servo system. 2004 8th International Conference on Control, automation, robotics and vision, Kunming, China, 2004, pp. 1774–1780.

Zhu

Wang

Zhao

Zhou

An alterable gain adaptive control compensation methods for hydraulic servo joint based on ANFIS. In Proceedings of the IEEE International Conference on Mechatronics and automation, Niagara Falls, Canada, 2005, pp. 148–155.

Garagic

Srinivasan

Application of non-linear adaptive control techniques to an electrohydraulic velocity servomechanism. IEEE Trans. Control Syst. Technol., 2004, 12(2), 303–315.

Shao

Chen

Sun

The application of fuzzy control strategy in electro-hydraulic servo system. In Proceedings of ISCIT 2005, 2005, pp. 159–165.

Azimian

Adlgostar

Teshnehlab

Velocity control of an electro hydraulic servomotor by neural networks. In Proceedings of International Conference on Physics and control, St Petersburg, Russia, 2005, pp. 677–682.

Wang

Habibi

Burton

Sampson

Sliding mode control for a model of an electrohydraulic actuator system with discontinuous non-linear friction. In Proceedings of the 2006 American Control Conference, Minneapolis, Minnesota, USA, 2006, pp. 5897–5905.

Wang

Zhao

Cui

Sliding control approach to pneumatic hydraulic combination control (PHCC) servo system. In Proceedings of the 6th World Congress on Intelligent control and automation, Dalian, China, 21-23 June 2006, 2156–2160.

10.

Perron

de Lafontaine

Desjardins

Slidingmode control of a servomotor-pump in a position control application. In Proceedings of IEEE CCECE/CCGEI, Saskatoon, 2005, pp. 1287–1292.

11.

Zeng

Sepehri

Adaptive backstepping control of hydraulic manipulators with friction compensation using LuGre model. In Proceedings of the 2006 American Control Conference, Minneapolis, Minnesota, USA, 2006, pp. 3164–3170.

12.

Harashima

Hashimoto

Kondo

MOSFET converter-fed position servo system with sliding mode control. IEEE Trans. Ind. Electron., 1985, 32(3), 238–244.

13.

Slotine

J. E.

Coetsee

J. A.

Adaptive sliding controller synthesis for non linear systems. Int. J. Control, 1986, 43(6), 1631–1651.

14.

Kachroo

Tomizuka

Chattering reduction and error convergence in the sliding mode control of a class of non linear systems. IEEE Trans. Autom. Control, 1996, 32(7), 1063–1068.

15.

Oucheriah

Robust sliding mode control of uncertain dynamic delay systems in the presence of matched and unmatched uncertainties. ASME J. Dyn. Syst. Meas. Control, 1997, 119, 69–72.

16.

Hwang

C. L.

Sung

F. Y.

Neuro-observer controller design for non-linear dynamical systems. In Proceedings of 35th IEEE Conference on Decision and control, Kobe, Japan, 1996, pp. 3310–3316.