Abstract
The advances in methods of estimating modal parameters of a linear time-varying structural system and identifying dynamics characteristic of nonlinear time invariant structural systems in recent years are briefly reviewed. A parameter estimated procedure for linear time-varying structural system based on the subspace technology and nonlinear system identification method including scheme based on the neural networks and time varying NARMA (nonlinear auto regressive moving average) model is summarized in detail. Finally, major issues and directions for future work are discussed.
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