Abstract
A gravity dam-reservoir system is selected for studying the interaction of structure-fluid systems under nonstationary random excitation. For an idealized random excitation with a zero start and a white power spectrum, the non-stationary power spectral density for the structural displacement is obtained by a frequency domain approach due to Shinozuka. The spectral density functions are then integrated to check the transient variance solution obtained previously by a time domain approach. Using this power spectral solution the random interaction effect is examined for the entire frequency range in detail. This interaction problem of the structure-fluid system is important because it simulates random and time dependent structural response to earthquake ground accelerations.KeywordsSpectral DensitySpectral PeakGround AccelerationFrequency Response FunctionSpectral Density FunctionThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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