弾性浮体モデルのモード特性に関する実験

概要

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The dynamic properties of two kinds of floating structure model were studied experimentally. Each floating structure was categorized as elastic and rigid body models. The vibration tests were carried out by the impact hummer tests and the Sweep harmonic excitation method. The vertical acceleration responses are measured on upper surface of the floating Structure by arranging some piezoelectric type acceleration sensors on each model. The frequency response functions Defined by normalized input and output data are analyzed by mean of multi-channel experimental model analysis software. The model properties such as coupled natural frequencies, coupled modes and damping ratio are estimated by using the carve fitting off frequency response function. These experimental results are compared between the elastic model with the rigid model, and especially coupled modal properties of elastic model are made clear experimentally.
一般社団法人日本建築学会の論文
2011-03-25