Simulation of Acoustic Radiation from Concrete Cylindrical Shell Based on the Finite Element Method

The fluid-structure coupled model was established by ANSYS in order to analyze the sound radiation of an enclosed cylindrical shell.On the basis of the original model,the concrete cylindrical shell structure was modified.Under the premise of not affecting structure bearing capacity,many holes were excavated on the appropriate locations to make the structure form get tiny change.Analysis results show that the frequency range of sound radiated from such structure can be changed effectively by this method.