非線形分数階微分方程式のための数値積分アルゴリズム(機械力学,計測,自動制御)

概要

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A numerical algorithm to solve a nonlinear fractional differential equation (NFDE) which includes the fractional derivative of the first and the second power or displacement is developed. These displacements are related to the linear and the nonlinear dynamical viscoelastic behavior. Derivation of the numerical integration algorithm by the use of one-step scheme of Newmark-βmethod, error evaluation and some important parameter studies for a typical numerical model are given. The characteristics of the linear and the nonlinear fractional derivative responses for ramp input, and of the nonlinear viscoelastic responses of the NFDE for sinusoidal input are investigated. From the study, the developed numerical algorithm is validated to solve the NFDE.
社団法人日本機械学会の論文
2006-10-25