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Among many estimation methods of modal parameters of structures, system identification methods in the time domain have recently been spotlighted.
This method is compared with existing methods of modal space control, namely the independent modal space control (IMSC), and modified independent modal space control (MIMSC).
The limitations of existing methods of modal interpretation are highlighted, and an insight into the mode selection for response analysis is provided.
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Modal identification has been done using global method of modal identification.
The method of modal analysis is then adopted to investigate the forced vibration of the frames.
A method of modal analysis is proposed in this paper to investigate the forced vibration of multi-span Timoshenko beams.
Since the controller obtained is a function of mode coordinate, an extraction method of modal coordinate from actual physical measurements is developed.
To apply the effects of higher modes and to improve the elastic load distribution pattern in pushover analysis, the fourth lateral load pattern is selected by the Method of Modal Combination (MMC) proposed by Kalkan and Kunnath (2004).
It will turn out that the method has considerable, computational advantages compared to the usually applied method of modal analysis based on eigenfunction expansions.
Finally, using the Lagrange equation and the method of modal superposition, structural dynamic differential equations under a harmonic moving load are derived.
The missile is idealized as a non-uniform beam where the bending elastic deflections are modelled using the method of modal substitution.
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