A STUDY ON OPTIMUM RESPONSE CONTROL OF PASSIVE CONTROL SYSTEMS USING VISCOUS DAMPER WITH INERTIAL MASS Substituting equivalent nonlinear viscous elements for linear viscous elements in optimum control systems
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We have already proposed optimum response control method of the system using linear viscous element with inertial mass connected in series to a linear elastic bracing element. In this paper, we discuss the method of substituting equivalent nonlinear viscous element for linear viscous element in the optimum control system. The proposed method is validated through numerous time history analyses over a wide range of mass ratio (added mass/main mass), and phases and spectrum characteristics of earthquakes.