A practical analysis model to simulate the cyclic behavior of a linear viscoelastic damper is proposed. It utilizes the classical Kelvin body with adequately specified stiflhess and viscosity. Part 1 paper discusses the modeling method and its accuracy using a single-mass system having the damper, supporting member, and elastic or inelastic frame. The performance of the model is examined by comparing the analytical results with those obtained from the accurate fractional-derivative constitutive rule. Although the frequency-sensitivity of Kelvin body differs considerably from the actual sensitivity, the model is found to produce reasonably accurate results under both sinusoidal and random excitations.
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Kasai et al. (2001) studied this question.
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