000010406 001__ 10406
000010406 005__ 20141205155724.0
000010406 04107 $$aeng
000010406 046__ $$k2008-10-12
000010406 100__ $$aJing, Yueling
000010406 24500 $$aNumerical Research on the Equivalent Transformation Between Structural Dynamic Analysis in Time-Domain and Frequency Domain

000010406 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010406 260__ $$b
000010406 506__ $$arestricted
000010406 520__ $$2eng$$aNumerical analysis methods in time-domain and frequency-domain are commonly considered as two important ways for seismic evaluation of structure responses. In terms of the seismic wave excitation and the structural output response, the expressions of time histories are usually applied in the time-domain method, while the complex harmonic waves or their summation generally used in the frequency-domain method, it is a focus in the field of structure engineering to construct equivalent expressions of seismic wave excitation and structural responses between time-domain and frequency-domain solution methods. In this paper, as far as general dynamic analysis of structure is concerned, a formula of trigonometric coefficients in time domain is deduced to compute frequency spectrum values at arbitrary frequency points for time history data, which avoids the disadvantage of the conventional discrete Fourier transform (DFT) method that merely suiting for the discrete frequency points. Hence, according to the seismic analysis of structural responses, a quantified assessment of equivalent expressions for various wave signals are given in detail, which builds a transformation bridge between time-domain and frequency-domain solution methods. Finally, the validity and feasibility of the transformation algorithm in time-domain and frequency-domain are numerical verified by the dynamic response analysis of multiple particles damp system and long span structure with seismic wave excitations. It’s also shown from the results, as the trigonometric coefficient method (TCM) is concerned, only inputted the real part or the imaginary part of the seismic wave exaction time history, the equivalence response of structure in frequency domain can be obtained by a simple combination of trigonometric coefficients in time domain.

000010406 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010406 653__ $$aSeismic analysis of structural responses, Seismic wave, Trigonometric series, Fourier transform

000010406 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010406 720__ $$aJing, Yueling$$iLi, Jianbo$$iLin, Gao
000010406 8560_ $$ffischerc@itam.cas.cz
000010406 8564_ $$s133250$$uhttps://invenio.itam.cas.cz/record/10406/files/14-0084.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 14-0084.
000010406 962__ $$r9324
000010406 980__ $$aPAPER