Time history response analysis using extended Rayleigh damping model

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Abstract Rayleigh damping has been widely used in time history response analysis. Many articles have reported the problems associated with this damping and suggested remedies. A basic problem is that the frequency area across which the damping ratio is almost constant is too narrow. If the area could be expanded, this would be one of an appropriate remedy for this problem. The author proposed a novel damping model capable of expanding the constant frequency area based on the study of a causal damping model. In this paper, the model is explained, first. Then, a time history response analysis is performed to confirm the effectivity of the model.

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