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International Standard Serial Number:
ISSN 1001-4551
Sponsor:
Zhejiang University;
Zhejiang Machinery and Electrical Group
Edited by:
Editorial of Journal of Mechanical & Electrical Engineering
Chief Editor:
ZHAO Qun
Vice Chief Editor:
TANG ren-zhong,
LUO Xiang-yang
Tel:
86-571-87041360,87239525
Fax:
86-571-87239571
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No.9 Gaoguannong,Daxue Road,Hangzhou,China
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310009
E-mail:
meem_contribute@163.com
Abstract: In orderto solve the problem that the analysis of the dynamic characteristics of the control system of hydrostatic bearing of grinding machine was limited to the classical cybernetic method, the nonlinear, multi-input, multi-output and time-varying characteristics of the control system of hydrostatic bearing was studied by simulation and experiment. Firstly, the working principle of hydrostatic bearing system was analyzed, and the bond graph model of hydrostatic bearing control system was established by using bond graph theory, and the state space equation of the system was deduced. Then, the system was simulated by MATLAB/Simulink, and the response characteristics in time domain were analyzed.Finally, the dynamic performance of the liquid film feedback hydrostatic bearing system was verified on the experimental verification platform and compared with the simulation results. The results show that the designed liquid film feedback hydrostatic bearing system has good static performance and dynamic characteristics, the static error is reduced by 5%, the overshoot of dynamic characteristics index is 12%, the response time is 10ms, and the peak time is about 6ms. The comprehensive indexes are improved and meet the requirements of the desired design technical parameters. The problems of low static accuracy of the hydrostatic bearing andits dynamic characteristics being easily disturbed by external loads are solved.
Key words: liquid film feedback hydrostatic bearing; hydrostatic bearing control system; state space equation; MATLAB/Simulink; bond graph model; time domain response characteristics; overshoot
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- Chinese Core Periodicals
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- Chinese Sci-tech Core Periodicals
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- SA, INSPEC Indexed
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- CSA: T Indexed
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- UPD:Indexed
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