2007 Volume 72 Issue 620 Pages 27-34
Using the classical stationary point theory of one mass model with Maxwell type devise, evaluation formulas of optimum damping coefficients and corresponding frequencies are derived. Then equation of motion of multi-mass model with Maxwell type devise is derived for the sake of direct calculation of seismic response. Next, utilizing the orthogonality of the eigen mode, generalized modal model with equivalent Maxwell devise is proposed. Through comparison of the results by the direct method with the modal one, existence of the stationary point of multi-mass model is verified. Lastly property of available damping coefficient value and note for use of this method are discussed.
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