509 がたを含む配管系の非線形振動に関する研究(地震応答)(OS.09 : 耐震・免震・制振)

概要

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In this paper we propose an analytical model of nonlinear spring in nonlinear vibration system with gaps used elasto-plasticity solid model and an analytical evaluation model of the nonlinear vibration characteristics by the nonlinear spring model of cubic equation. A yield load is obtained from bending problem of a beam. New parameter of the plate is obtained by the yield load. The restoring force is obtained by the load and the displacement of Eq.(10). The restoring force characteristics used the elasto-plasticity solid model are agreed with that of the experimental results used the new plate. The restoring force characteristics by the analytical model are able to be described by the cubic equation. The transfer functions from the experiments are agreed with the simulations used the elasto-plasticity solid model and the analytical evaluation model.
2001-08-03