面内に単純支持点のある片持正方形板の振動 : 支持点数1,2個の場合

概要

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In this paper natural vibration of cantilever plates restrained at several points are treated. Numerical analyses are carried out with FEM (Finite Element Method) using "NASTRAN" program. As the result, a good agreement between numerically analyzed values and experimental data is found. The natural frequencies of those plates increase as the number of the simply supported points on the plates increases. And within the limits of lower frequencies (such as 1st and 2nd mode) the natural frequency is two or three times as high as the frequency that has no simply supported points on the plates. In the case which restraining points are disposed symmetrically, the natural frequency shows much higher. For higher frequency mode (such as 3rd and 4th mode)the variation of the natural frequency is shown small.