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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: Aiming at the problem that it was difficult to quantify the influence degree of output damping force of energy harvesting magnetorheological (MR) damper due to the numerous electromagnetic parameters, a method to calculate the contribution of output damping force was proposed. Firstly, the electromagnetic model of energy harvesting part was established. The relationship between induced electromotive force and main electromagnetic parameters of energy harvester was derived. Secondly, the circuit model of energy harvesting MR damper was formulated. The energy harvesting part, rectifier part, and damper part were analyzed. The relationship between trunk current and branch current was obtained. Combining Kirchhoff's law and Bingham model, the electromechanical coupling equations of output damping force and key parameters were established. Then, the first order sensitivity function relationship between output damping force and key parameters was derived by direct derivation approach. According to the obtained sensitivity function and the image of key parameters, the changing relation of sensitivity function with key parameters was explored. Finally, the contribution of key parameters to output damping force of energy harvesting MR damper was defined, and the contribution of key parameters to output damping force was obtained by designing a two-level orthogonal experiment with eight parameters. The research results show that the sensitivity function of damping force and key parameters exhibit non-linear characteristics. The inner and outer diameters of coil in the energy harvesting part make most contributions to the output damping force. The contribution of the inner diameter of the generating coil to the output damping force is 780.96, and the contribution of the outer diameter of the generating coil to the output damping force is 715.05. The amplitude of output damping force and vibration semiactive control performance can be improved by adjusting the inner and outer diameters of coil in the generator.
Key words: mechanical vibration suppression; energy harvesting magneto-rheological (MR) damper; sensitivity analysis; sensitivity function; orthogonal test method; semiactive actuator; contribution
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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
