Hybrid method for the computation of dynamic soil-structure ...
Hybrid method for the computation of dynamic soil-structure ...
Hybrid method for the computation of dynamic soil-structure ...
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<strong>Hybrid</strong> domain <strong>method</strong>Asymptotic expansionIntroduction<strong>Hybrid</strong> <strong>method</strong>1Time Domain BEM0.83FE-BEConclusionsFlexibility [−]0.60.40.2Flexibility [m/N]4 x 10−6210Time [−]00 10 20 30 40 50Frequency [−]−1−0.5 0 0.5 1 1.5 2ˆF(ω)F(t)Different alternatives <strong>for</strong> <strong>the</strong> backtrans<strong>for</strong>mation:■ FFT (combined with analytical expression)■ Generalised Filon integration with unevenly distubted frequency domain sampling.(advantage: non-uni<strong>for</strong>m sampling in time)LMSSMat <strong>Hybrid</strong> <strong>method</strong> <strong>for</strong> <strong>the</strong> <strong>computation</strong> <strong>of</strong> <strong>dynamic</strong> <strong>soil</strong>-<strong>structure</strong> interaction in <strong>the</strong> time domain - p. 15/44
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