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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: When using different positions of the cantilever beam cantilever structure as the external excitation source, in order to obtain more energy from the load, the energy output of the cantilever beam was optimized, the flow output of the diaphragm pump was maximized, and the purpose of optimal matching of diaphragm stiffness was achieved,the relationship between the performance of diaphragm pump and the external output stiffness of cantilever beam structure was studied. Firstly, three feature positions of the root, middle and end of the cantilever structure were selected. The energy output impedance matching of the cantilever spring mass model was analyzed by using the finite element simulation software. Then, the diaphragm positive displacement pump was selected as the driving load, and the simplified dynamic model of the diaphragm positive displacement pump driven by piezoelectric cantilever beam was established by using its structure and working principle. The relationship between the performance of the diaphragm pump and the structural parameters of the cantilever was analyzed by using the model. Finally, the output flow of diaphragm pump at different feature position of cantilever beam with different disc diameters was tested by building an experimental platform for stiffness matching of piezoelectric cantilever beam driven diaphragm pump. The results show that the diameter of the piston disc at the root, middle and end of the cantilever beam is 20 mm, 18 mm and 16 mm respectively when the output flow of the diaphragm pump is maximum. With the decrease of the output stiffness at different positions, the optimal stiffness of the diaphragm matching can be reduced. The cantilever structure and load parameters remain unchanged while the corresponding optimal load matching stiffness gradually increases.
Key words: diaphragm positive displacement pump; energy output of cantilever beam; flow output of diaphragm pump; optimum matching of diaphragm stiffness; feature positions; cantilever spring mass model; drive load
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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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2010 Zhejiang Information Institute of Mechinery Industry
Technical Support：Hangzhou Bory science and technology
