Basic Investigation on Aseismic Properities of Fixed Ocean Structures (2nd Report:Experimental Approach)

摘要

Experimental studies on dynamic properties of a fixed ocean structure are presented by using vibration testing system. The purpose of the present paper is to check the accuracy of the analytical approach which neglects compressibility and internal viscosity of water. Three different experimental models are made to evaluate the effects of cross-sectional shape and mass of model. Calculated natural frequencies coincide with the experimental ones. This fact is not true for damping constant. It is necessary to consider damping effect due to surruonding water.