外形为教堂用钟的非圆形钟的振动方式
Vibrational modes of a non-circular bell with a church bell profile
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摘要: 本文用全息干涉法研究了外形为教堂用钟的扁形钟的振动方式。钟的非圆形导致振动方式成对出现,其中一个方式为节线的子午线部位是另一方式的腹线。方式对的频率比在0.94至1.21之间。Abstract: The vibrational modes of an almond-shape bell,having the profile of a church bell,were studied using holographic interferomtry The non-circular shape results in mode pairs,one pair member having a node at the end of the bell the other an antinode.Frequency ratios between the mode pairs range from 0.94 to 1.21.