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Research Papers

Coupling Simulation Algorithm of Dynamic Feature of a Plate With Particle Dampers Under Centrifugal Loads

[+] Author and Article Information
Zhaowang Xia, Yingchun Shan

School of Transportation Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, P.R. China

Xiandong Liu1

School of Transportation Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, P.R. Chinaliuxiandong@buaa.edu.cn

1

Corresponding author.

J. Vib. Acoust 133(4), 041002 (Apr 06, 2011) (6 pages) doi:10.1115/1.4003395 History: Received January 02, 2010; Revised August 30, 2010; Published April 06, 2011; Online April 06, 2011

Particle damper comprises granular particle enclosed in a container within a vibrating structure. The performance of particle damper is strongly nonlinear whose energy dissipation is derived from a combination of mechanisms including plastic collisions and friction between particles or particles and cavity walls. Particle damper containing suitable materials may be effective in a wider temperature range than most other types of passive damping devices. Therefore, it may be applied in extreme temperature environments where most conventional dampers would fail. It may also attenuate vibrations over a broad range of frequencies and cost less. Researches have indicated that particle damper could be a viable option for extreme environment applications. However, to date, no effort has come forward the can prove analytically or numerically that the particle damping is a viable solution for vibration suppression under centrifugal forces. In this paper, a coupling simulation algorithm based on the discrete element method and finite element method and the results of simulative studies aimed at understanding the effects of parameters of particle damper under centrifugal forces are presented. And the results show that the presented coupling simulation algorithm is effective and the analyses of dynamic feature of a plate with particle dampers under centrifugal loads are reasonable.

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Copyright © 2011 by American Society of Mechanical Engineers
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Figures

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Figure 1

Flow chart of the coupling simulation algorithm

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Figure 2

Particle contact characteristics showing contact stiffness and contact damping

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Figure 3

Plate modal displacement plots: (a) first mode (bend, 48 Hz), (b) second mode (bend, 331 Hz), and (c) third mode (torsion, 503 Hz)

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Figure 4

Schematic of a plate with (left) longitudinal particle dampers or (right) transverse particle dampers

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Figure 5

Response of the plate versus frequency with/without centrifugal force

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Figure 6

Response of the plate versus frequency with/without centrifugal force

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Figure 7

Response of the plate versus frequency with/without centrifugal force

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Figure 8

The particle dampers location of longitudinal damper

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Figure 9

Response of the rotating plate versus the rotation velocity (the first mode)

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Figure 10

Response of the rotating plate versus the rotation velocity (the second mode)

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Figure 11

Response of the rotating plate versus the rotation velocity (the third mode)

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