The dynamic characterization of particle dampers

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Journal of Vibration and Shock ›› 2009, Vol. 28 ›› Issue (1) : 134-137.

论文

The dynamic characterization of particle dampers

Hu Li Huang Qibai Wang Jianliang

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Abstract

The particle damping technology has been used successfully in many fields for vibration reduction. However, it is difficult to predict the damping characteristics due to complex collisions in the dense particle flow. In this paper, the micromeritics model is established here to study the effect of the geometry on the characterization of particle dampers. The nonlinear characteristics of particle dampers are also studied experimentally to model the nonlinear damping of particle dampers as equivalent dampers that can be applied directly to engineering structures at the design stage.