Journal of Vibration and Acoustics

Knuth C., Squicciarini G. & Thompson D.

Owing to their high strength-to-weight ratio, stiffened plates are used in many engineering applications. However, adding stiffeners to a plate alters its ability to vibrate and radiate sound. The radiation efficiency of stiffened plates was modelled numerically for a wide range of configurations combining a finite element model with the Rayleigh integral. From the results we derived a new engineering approach which allows calculating the radiation efficiency of stiffened plates at a low computational cost.

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