抄録
Dynamic earthquake proofness of a vibrating body in the atmosphere can be evaluated by the state of attenuation of the free vibration of the vibrating body. This study deals with the actual measurement of the values of the attenuation coefficent of vibration due to atmospheric resistance which consists the principal cause of this attenuation on the theoretical reduced scale models which have relations with various shapes, states of vibration (periodic times, amplitudes, vibration curves, etc.), as well as masses and volumes (or the direction of the vibration and projection area). And the results obtained are arranged on this paper.
