A SPECTRAL ANALYSIS METHOD FOR SPECTRAL ELEMENT MODELS

스펙트럴 요소 모델을 이용한 스펙트럴 해석법

In the literatures, the FFT-based SAM has been well applied to the computation of the steady-state responses of discrete dynamic systems. In this paper, a fast fourier transforms (FFT)-based spectral analysis method (SAM) is proposed fur the dynamic analysis of spectral element models subjected to the non-zero initial conditions. However, the FFT-based SAM has not yet been developed for the continuous systems represented by the spectral element model.