Abstract
In this paper, we present the results of experimental and analytical studies of a particle damper with hollow steel particles in a nonlinear vibrating system. The principle behind damping is the removal of vibrating energy through momentum transfer and friction losses between particles and the cavity. An analytical solution based on the discrete element method (DEM) is presented. The experimental study shows that significant damping can be achieved through used of hollow particle damping. Comparison between the experimental and analytical results shows that accurate estimates of the rms response of a primary system can be obtained. The height of granular materials and the clearance ratio were calculated by the gravity method. It is shown that the response of the primary system is independent of the area of the damper cavity in the case of that the mass ratio and the clearance ratio are the same.
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