Determination of Modal Constant for Fundamental Frequency of Perforated Plate by Rayleigh's Method using Experimental Values of Natural Frequency

In the present work, an expression for the modal constant of the fundamental frequency of the perforated plate was determined experimentally. Rayleigh’s formulation was used to calculate the modal constant. The displacement solution was considered to be a linear combination of cosines. In Rayleigh’s formulation, fundamental frequency values were taken from experimental analysis. This problem was solved in reverse order by considering known experimental values of the fundamental frequency. Thus, the modal constant expression for fundamental frequency was discovered.

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