平板の面内振動特性
1997 年 45 巻 519 号 p. 238-240
詳細
1997 年 45 巻 519 号 p. 238-240
In sandwich plates, the strong demand of both lightweight and high bending rigidity makes its face sheet very thin and core very high. In such plates, resonance frequencies of in-plane vibration become very low. Consequently it is necessary to consider in-plane vibration as well as bending vibration. But there are few studies related to in-plane vibration problems. In this paper, the in-plane vibration characteristic of the flat plate which is made of the thick Al honeycomb core and thin Al face is evaluated by both the finite element method analysis and the experiment. Both results are compared with each other and both natural frequencies and vibration modes by the analysis coincides very well with those by the experiment.
