113 渦型振動インテンシティの生成と伝達パワーの抑制(振動制御技術)

概要

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This paper is one report of a series of trying to develop a new method for reducing structure-borne sound by using structural intensity technique. We are studying the use of the modal form of structural intensity on plate to control the intensity distribution by changing the excitation conditions or/and designing structure. In this paper, it is shown that the modal form of the intensity on plate can be also effective to analyze the intensity on plate compound structure composed of three flat plates. It is also confirmed that the vortex cross-modal functions on the structure have no contribution to transmitted power on a plate and between plates. Next, we report one example as the structural design considering structural intensity. In the example, we make vortex type structural intensity by setting one reinforcement beam on plate under the excitation condition without vortex type intensity distribution on the plate.
一般社団法人日本機械学会の論文
2010-06-26