Difference between spectrums
Difference between spectrums
(OP)
How does a response spectrum differ from a Fourier spectrum?
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Difference between spectrums
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Difference between spectrumsDifference between spectrums(OP)
How does a response spectrum differ from a Fourier spectrum?
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RE: Difference between spectrums
With respect to the response spectra, its Y-axis is the accleration, which related to the force a building will take. we only use response spectra to design the buildings.
Hope these help.
RE: Difference between spectrums
A response spectrum is the response of a single-degree-of-freedom to a given input waveform. A damping (typically 5%, though this values is not a requirement) of the SDOF system is needed for realistic evaluation. The response spectrum is calculated by determining the maximum relative displacement of the single-degree-of-freedom system for each frequency calculated, yielding a spectrum. This is commonly related to an equivalent sine wave for each frequency that would produce the observed response. The velocity or acceleration of the equivalent sinewave is termed the pseudo-velocity or pseudo-acceleration. A response spectrum can NOT be inverted to get a waveform back -- a response spectrum is non-unique, i.e., many waveforms could generate the same response spectrum.
Doug Anderson, PhD, Schnabel Engineering
RE: Difference between spectrums
RE: Difference between spectrums
Graeme.