粘弾性層をもつ五層く形棒のねじり応力および制振特性

概要

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This paper provides an exact analysis for shear stress of a five-layered rectangular rod with damping viscoelastic layers, and presents its torsional rigidity and loss factor in the form of an explicit function. Numerical evaluations of both maximum shear stresses in the rod and in the viscoelastic layer are carried out, and these arising points are discussed. The optimum rod composition to maximize the loss factor ratio of the rod to viscoelastic material clearly exists in accordance with each layer thickness and its material constant. These maximum values are nearly equal to each other if the viscoelastic layer thickness is thinner than those of the outer and core elastic layers. These maximum values shift in the temperature range and become higher by means of the optimum adjustment of the viscoelastic layer thickness. Then, the design of the rod for the environmental temperature seems to be performed by such adjustment.
一般社団法人日本機械学会の論文
1991-05-25