不規則入力を受ける弾塑性サポート支持配管系の最適化に関する統計的検討

抄録

In this study, the optimization of supporting of the piping system by using elasto-plastic damper based on the dynamic reliability is considered. First, an analytical model of an L-type cantilevered piping system with weight at the top end subjected to seismic input was derived, considering the nonlinear characteristics of the elasto-plastic dampers. Seismic input was modeled as white Gaussian noise. The vibration behaviors were calculated for various seismic inputs. After that, the complex evaluation indices, which consist of the dynamic reliability, the energy absorption ratio, and the balance of energy absorption, were derived for optimization of supporting.