解析解と有限要素法を併用する振動解析法 : 第2報, 変断面管内流体の過渡応答解析

概要

論文の詳細を見る
In the previous report, a method of vibration analysis of continuous bodies was presented. This method is based on the transfomation of analytical solutions into discrete relations between displacements and concentrated forces at nodal points located on part of the boundary of a subdomain. The resulting relations have the same forms as those in the FEM. In this paper, transient pressure responses of fluids contained in rigid pipes of which cross sections varying along axes are calculated by the method. The calculated results of the time history of pressure change agree well with the experimental results. This means that the accuracy of calculation is sufficient for higher modes of natural vibrations of the systems. The present method is also effective in shortening the computational time.
一般社団法人日本機械学会の論文
1989-04-25