Design method for fluid viscous dampers |
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| Authors: | Jia Jiuhong Du Jianye Wang yu Hua Hongxing |
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| Institution: | (1) State Key Laboratory of Mechanical System and Vibration, Shanghai Jiaotong University, Shanghai, 200240, People’s Republic of China;(2) Institute of Naval Vessels, Naval Arming Academy, Beijing, 100073, China |
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| Abstract: | A basic design method of doubly acting fluid viscous dampers with double guide bars is presented. The flow of the viscoelastic
fluid between two parallel plates, one of which is started suddenly and the other of which is still, is analyzed. According
to this solution, the velocity and the shear stress of the fluid at the fringe of the piston are solved approximately. A mathematical
model of viscous dampers is derived, and the shock test is carried out. From experimental results, the parameters of the mathematical
model are determined. Consequently, a semi-empirical design equation is obtained. Applying this equation to a certain practical
damper, the damping material is chosen and the physical dimensions of the damper are determined. Shock tests using this damper
are performed. Theoretical results are in good agreement with experimental results, which validates the reliability of the
calculated physical dimensions of the specimen damper and the validity of the basic design equation.
An erratum to this article can be found at |
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| Keywords: | Fluid viscous dampers Piping system Damping coefficient Nonlinear viscous damping |
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