Prediction method for the ratio of maximum displacement between two structures within oil dampers

This paper analyzes the maximum relative displacement of adjacent structures in coupled vibration control structure. The ratio of the maximum relative displacement between two structures of damper connection and non-connection (reldR,) is focused and a reduction effect of the relative displacement by the connection of the oil damper is evaluated. Two mass models using coupled vibration control structure are analyzed and the trends ofreldR,based on the period and mass of two structures and performance of the damper are clarified. Thereafter, the method of prediction ofreldR,based on the least square method is presented and the accuracy of this method is verified by comparing the prediction results with the results of time history response analysis.