Vibration and Acoustic Radiation of Stiffened Plates Subjected to In-Plane Forces

This study is devoted to vibration and acoustic radiation of stiffened plates in the presence in-plane normal shear loads using finite element method. In structural modelling, plate stiffeners are treated as separate elements strain kinetic energies with an elastic boundary introduced. The results show good agreement those obtained other methods. Parametric studies that forces have obvious influences on efficiency sound power level structure. Furthermore, position warrants attention; e.g., farther from constraint are, greater effect performance is. However, edge loading has little influence structures.