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Research on Two Key Technologies of Improving Dynamic Quality of Hydraulic System With High Flow

[+] Author Affiliations
Jing Wang, Guofang Gong, Huayong Yang

Zhejiang University, Hangzhou, China

Paper No. DSCC2008-2103, pp. 25-31; 7 pages
  • ASME 2008 Dynamic Systems and Control Conference
  • ASME 2008 Dynamic Systems and Control Conference, Parts A and B
  • Ann Arbor, Michigan, USA, October 20–22, 2008
  • Conference Sponsors: Dynamic Systems and Control Division
  • ISBN: 978-0-7918-4335-2 | eISBN: 978-07918-3838-9
  • Copyright © 2008 by ASME


The demand of hydraulic parallel motion system of space rendezvous and docking simulator to its hydraulic system is high flow and high performance. To achieve good motion simulation results and meet the requirements of precision control, a method of self-tuning parameters fuzzy PID control of proportional water valve opening has been employed to control oil temperature, a method of online vacuum degassing in a sealed system has been used to increase oil effective bulk modulus, and a device has been developed to measure oil bulk modulus online. Experimental research has been carried out on the hydraulic driving system of comprehensive test bed for docking mechanism. The experimental results show that precise control of oil temperature has been achieved and bulk modulus of oil has been increased obviously.

Copyright © 2008 by ASME



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