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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
Add:
No.9 Gaoguannong,Daxue Road,Hangzhou,China
P.C:
310009
E-mail:
meem_contribute@163.com
Abstract: Taking the electro-hydraulic actuator system used for precision control of power switches in a certain power system as the research object, in view of the problem that its working characteristics do not meet the actual needs of the project, taking a study for the structural parameters of the flow matching valve as a key component, theoretical analysis, simulation analysis, and experimental testing were conducted on the working characteristics of the electrohydraulic actuator system. Firstly, the internal structure of the valve and the working principle of the system were analyzed. Then, the mathematical model and simulation model of the electro-hydraulic actuator system were established, and the feasibility and accuracy of the simulation model were verified through experiments. Finally, the influence of the single-factor structural parameters of the flow matching valve on the operating characteristics of the electro-hydraulic actuator system was explored, the orthogonal tests were designed and conducted, and the optimal structural parameter combination scheme within the optional range was obtained. The research indicates that the structural parameters such as the preload force of the valve seat steel ball seal spring, the stiffness of the valve seat steel ball seal spring, and the initial covering amount of the valve port of the flow matching valve have an important impact on the working characteristics of the electro-hydraulic actuator system. Comparing with the original plan, the optimal structural parameters scheme, the system response time is shortened from 133 ms to 42 ms, and the positioning accuracy is improved from 0.261% to 0.096%, which can effectively shorten the system response time, improve the system positioning accuracy, and meet the actual needs of the project.
Key words: hydraulic control valve; electro-hydraulic actuator; flow matching valve; AMESim; response time; positioning accuracy; orthogonal test
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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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2010 Zhejiang Information Institute of Mechinery Industry
Technical Support：Hangzhou Bory science and technology
