振動インテンシティ計測に関する基礎研究 : 第5報,二次元の実験的検討(機械力学,計測,自動制御)

概要

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Structural intensity measurement of a two-dimensional vibrational field is investigated numerically and experimentally. A method that uses five accelerometers (5-point method) and a wave decomposition method are discussed. First, the error of the intensity measurement using the 5-point method is numerically discussed. Second, the wave decomposition method in a two-dimensional field is applied to determine the vibrational field. The effectiveness of the wave decomposition method is numerically presented. Furthermore, these two methods are investigated experimentally. As a result, the structural intensity can be measured practically with high precision and the localization of source is possible using these methods. A technique for estimating the propagating power by measuring at a few points is also shown.
社団法人日本機械学会の論文
1997-04-25