Research on Control Strategy of Oil Film Stiffness Control System of Hydrostatic Center Frame

Zhong Wen Wang; Rui Zhen Duan; Wan Li Xu; Fu Chun Tao; Xiao Qiu Xu

doi:10.4028/www.scientific.net/AMM.274.629

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 274Research on Control Strategy of Oil Film Stiffness...

Research on Control Strategy of Oil Film Stiffness Control System of Hydrostatic Center Frame

Abstract:

Design a new type of electro-hydraulic servo control system of oil film in hydrostatic center frame, regulate and control oil film thickness adopting various controllable oil chambers, build mathematical models of control system and carry on system model identification and verification. Propose a control strategy about fuzzy sliding model variable structure, and it is applied in the model achieved by identification, adopt the method of fuzzy control system approximating equivalent control and design switching controller based on fuzzy control gain dynamic regulation, which could inhabit buffeting existing in sliding model variable structure control. Simulation results show that the controller can’t only effectively inhabit buffeting and reduce steady-state error, but also has strong robustness for structure parameter uncertainty.

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Periodical:

Applied Mechanics and Materials (Volume 274)

Pages:

629-633

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.274.629

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Online since:

January 2013

Authors:

Zhong Wen Wang, Rui Zhen Duan, Wan Li Xu, Fu Chun Tao, Xiao Qiu Xu

Keywords:

Electro-Hydraulic Position Servo System, Fuzzy Control, Hydrostatic Center Frame, Oil Film Stiffness, Sliding Model Variable Structure

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