非線形系の応答の時間周波数特性の複素数表現に基づく入力波の推定

抄録

Consideration of nonlinear response of structures is essential in the dynamic response analysis for the performance based design. Due to technical difficulties, however, they are not sufficiently considered in the current seismic design schemes. This paper proposes a method to estimate an input ground motion from the time-frequency characteristics of the nonlinear response of sys-tems, by using wavelet transform. Performance of the proposed method is verified by numerical simulations.