文件名称:Technical-Preview---Digital-Filter
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In this article several methods for measurements of damping are summarized
with respect to their advantages and disadvantages. Especially the use of
Digital Filters (DF) and Fast Fourier Transform (FFT) are compared. In general
FFT analysis is best suited for heavily damped structures although with
proper memory and postprocessing facilities, lightly damped structures may
also be covered, while it is advantageous to use DF analysis when dealing
with lightly damped structures only. The use of Time-frequency analysis techniques
such as the Wavelet Transform and the Short-time Fourier Transform
is also demonstrated.
with respect to their advantages and disadvantages. Especially the use of
Digital Filters (DF) and Fast Fourier Transform (FFT) are compared. In general
FFT analysis is best suited for heavily damped structures although with
proper memory and postprocessing facilities, lightly damped structures may
also be covered, while it is advantageous to use DF analysis when dealing
with lightly damped structures only. The use of Time-frequency analysis techniques
such as the Wavelet Transform and the Short-time Fourier Transform
is also demonstrated.
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Technical Preview - Digital Filter.pdf