Research on the Motor Friction Model of Electro-Hydraulic Servo System

Abstract:

In order to improve the performance of the electro-hydraulic servo system, considering the special structure of servo motor, nonlinear model of the servo motor was established in time domain. Several friction models commonly used in project were introduced and applied to the simulation analysis of servo motor with friction torque. The simulation curves show the relationship between driving torque, friction torque, angular velocity and angular displacement. The result confirms the influence of the different friction torque model on the performance of motor, and the LuGre friction model is identified which is fit for the friction torque compensation. This study lays the foundation for the friction torque compensation of electro-hydraulic servo motor.

• Periodical: Key Engineering Materials (Volumes 579-580)
• Pages: 594-597
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.579-580.594
• Online since: September 2013
• Authors: Xiao Jing Wang, Wen Xuan Han, Xiao Cui, Shuo Ze Li, Cheng Zhi Du
• Keywords: Electro-Hydraulic Servo Motor, Friction Model, Low Speed Movement

References

[1] J. Cao and H.G. Xu: Journal of Harbin Institute of Technology, Vol. 15 (2008), pp.86-89.

[2] Q.H. Liu and X.Y. Wang: International Symposium on Fluid Power Transmission and Contro(Shanghai, China, June 23-26, 1995) . Vol. 1, pp.494-498.

[3] X.J. Wang, J.P. Shao and J.H. Jiang: Journal of Harbin Engineering University, Vol. 32 (2011), pp.1045-1051. (In Chinese).

[4] X. Cui, Y.L. Dong and K.D. Zhao: Journal of South China University of Technology, Vol. 37 (2009), pp.112-116. (In Chinese).

[5] Awrejcewicz J, Olejnik P. ASME Appl Mech Rev, Vol. 58 (2005), pp.389-392.