1012 微分代数方程式を用いた非線形サポートを有する配管系の振動応答解析(GS-6 振動解析・計測)

概要

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Nonlinear supports such as elastro-plastic dampers are important elements for earthquake-proof, design. When such nonlinear supports are utilized for piping systems, the nonlinearities of the elements and the geometrical complexity of the piping systems lead to complicated seismic responses, and thus further studies are required in order to enhance the reliability of the earthquake-proof design. In this paper, a method of nonlinear seismic response analysis for the piping systems using DAE is used. By using the method, numerical modeling and simulation of the piping systems in complex form supported by the nonlinear supports can be easily carried out. The simulation results with L-shape piping with an elastro-plastic damper imply that the dominant frequencies of their seismic responses depended on ratio of total elastic and plastic deformation time.
社団法人日本機械学会の論文
2001-03-16