2012•The Proceedings of Conference of Kanto BranchOpen access

2007 Study on Damping Model of Particle Damping

Watanabe Eri, Masato SAEKI

Abstract

In this paper, a damping model of particle damping is investigated. The impact force of between granular materials and the damper container was calculated by means of the discrete element method. The impact force was divided into the real part and the imaginary one by the Fast Fourier Transform. Their real part and imaginary one were then approximated appropriate curves. The damping effect of the particle damper was computed from the approximated curve. The validity of the damping model was confirmed by a comparison of experimental and analytical results. The influence of partied number on the damping performance is investigated.

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Key concepts: Damper, Damping torque, Particle (ecology), Discrete element method, Damping ratio, Viscous damping, Fourier transform, Physics