時刻歴応答解析における部分構造合成法 : 第2報,区間連成力を一定とする方法の精度改善

概要

論文の詳細を見る
The previous paper discussed the error of the substructure synthesis method for time integration, coupling effects being treated as constant approximately during each time step using the values at its starting point. In the paper an improved method is proposed where predicted values at the middle point of the time step are used as the coupling effects. The accuracy of the improved method is examined in terms of the distortion of eigen values for several linear vibration models consisting of two subsystems connected by a spring. It is found that the numerical stability of the proposed method is greatly improved ; furthermore, it becomes absolutely stable within some region of coupling parameter if the Pade-11 method is used for time integration in substructures.
一般社団法人日本機械学会の論文
1985-11-25