Design and mechanical characteristics analysis of a new viscous damper for piping system |
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| Authors: | Jiuhong Jia Xiaoyao Shen Jianye Du Yu Wang Hongxing Hua |
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| Institution: | (1) State Key Laboratory of Vibration, Shock& Noise, Shanghai Jiaotong University, Shanghai, 200240, People’s Republic of China;(2) Shanghai Nuclear Engineering Research and Design Institute, Shanghai, 200230, China;(3) Institute of Naval Vessels, Naval Arming Academy, Beijing, 100073, China |
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| Abstract: | In this paper, the design of a new viscous damper is presented and its mechanical characteristics are investigated experimentally.
The motion equation of a system consisting of a drop machine and the damper is set up. By numerically simulating this equation,
the curve of the damper cavity generatrix is obtained on the assumption that the resisting force is constant. Then the new
damper with big capacity and high-energy dissipation rate is designed. Drop tests using this damper and a Pro225-damper bought
in the market are performed, respectively. On one hand, the experimental resisting forces of the new damper approximate constants,
which illustrates that the simulation is viable. On the other hand, some advantages of the new damper over the Pro225-damper
are found. |
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| Keywords: | Fluid viscous damper Drop test Dynamic performance Piping system |
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