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- W53928207 abstract "In studying vibrations of flexible structures, estimation of system parameters using observations in the time domain gave poor results when the observations contained several vibration modes. In response to this difficulty in using time domain optimization techniques, we attempted to carry out identification in the frequency domain. The underlying idea for this procedure involves taking the discrete Fourier transform (DFT) of the data and defining the cost function by using this transformed data and transforms of the model solution. In this paper we outline the theoretical foundations for general frequency domain parameter estimation techniques for second order systems described in terms of sesquilinear forms and operators in a Hilbert space. To illustrate the ideas and techniques, we apply them to the problem of estimating damping parameters in Timoshenko beams.KeywordsDiscrete Fourier TransformTimoshenko BeamMild SolutionAnalytic SemigroupDistribute Parameter SystemThese 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." @default.
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- W53928207 date "1993-01-01" @default.
- W53928207 modified "2023-09-23" @default.
- W53928207 title "Parameter Identification in the Frequency Domain" @default.
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- W53928207 doi "https://doi.org/10.1007/978-1-4612-0321-6_3" @default.
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