112 "減衰行列"の理論的導出と有限要素解析への応用(粘弾性材料)

概要

論文の詳細を見る
This paper presents a theoretical derivation of damping matrix and its application to the finite element analysis (FE Analysis). Fractional calculus constitutive law was applied for describing the viscoelastic material and was used to obtain the finite element formulation. The so-called " damping matrix " C was derived including the parameters of fractional derivative order r, relaxation time T, and shear modulus G of the concerned material. A finite element computer program was developed on the basis of this formula and was used to analyze the viscoelastic seismic damper which was made of viscoelastic material. The computational results are in good agreemant with the vibration test results. The flow of evaluation procedure by the FE Analysis for viscoelastic structures are summalized for user's convenience.
社団法人日本機械学会の論文
2002-01-11