Title: Application of particle damping for vibration attenuation in brake drum

Authors: Zhaowang Xia, Xiandong Liu, Yingchun Shan

Addresses: School of Transportation Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China. ' School of Transportation Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China. ' School of Transportation Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

Abstract: The mechanism of noise of brake is very complex. A particle damper can be introduced without changing the shape of the structure and the addition of mass, and it may be applied in extreme temperature environments where most conventional dampers would fail. However, previous particle damper designs have been based on trial-and-error experimentation. In this paper, the feasibility of an application of particle damping in the noise and vibration control of a rotating brake drum of a vehicle is analysed. A coupling simulation algorithm based on the discrete element method and finite element method is used to calculate and design the particle damper in the brake drum. This method makes it possible to investigate the properties of the particle damper in a rotating structure. The research results show that the presented particle damping is effective, and reasonable correlation is demonstrated between simulation and test.

Keywords: particle damping; rotating brake drums; discrete element method; DEM; vibration attenuation; brake noise, vehicle noise; vehicle vibration; particle damper design; particle dampers.

DOI: 10.1504/IJVNV.2011.040573

International Journal of Vehicle Noise and Vibration, 2011 Vol.7 No.2, pp.178 - 194

Available online: 07 Jun 2011 *

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