... with different numbers of stiffeners, stiffener depth, and plate thickness to investigate the dependence on the most important parameters. Differences between the radiation efficiency of stiffened plates and unstiffened panels are seen. In the monopole region, the result depends on the mode that dominates...

...Tian Ran Lin; Chris Mechefske; Peter O’Shea Characteristics of modal sound radiation of finite cylindrical shells are studied using finite element and boundary element methods in this paper. In the low frequency range, modal radiation efficiencies of finite cylindrical shells are found...

... with the fact that induced coupling between discrete modes of vibration becomes significant as flow velocity increases. Work in this area has been confined to flows in air, over unloaded structures, with the effects on sound radiation efficiency, kinetic energy, and sound power radiation quantified and compared...