サンドイッチ片持はりの横振動の粘弾性制動

概要

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Cantilever Configurations are widely used for relay, switch and spring systems. It is important to control damping of a cantilever as well as the natural frequency as desired in order to prevent chattering. By providing damping layers, the damping and the natural frequency are more easily controlled by means of the combination. The purpose of this paper is to discuss theoretically the natural frequency and the viscoelastic damping of sandwich cantilevers. Two types of construction are considered. It was found that as frequency increases or as thickness-length ratio of cantilevers increases, the transverse shear deformation in the core plays an important role for the damping as well as for the natural frequency in one case, while the general flexural behaviour is responsible for the damping in another case.
社団法人日本音響学会の論文