Structural Acoustic Design Auralization Technology

Acoustics assistant designing has been an effective way to improve structure with acquaintance of its acoustical character. Noise control can be well actualized with understanding of the acoustics characters of thin plate, cylindrical shell, stiffened plate and stiffened shell in liquid medium, which are the most common structure of car, aircraft and ship. Therefore, researches of acoustics prediction and designing should be carried out with high demand.The vibration of plate and shell has been highly concerned. Currently, most work has been put on numerical value analyzing and theoretical research, which has the character of concision results and easily being digitalized. However, it seems not so intuitionistic for nonprofessional people. In this paper, a study has been made of analyzing the acoustics and vibration characters of the plate & shell and stiffened plate & shell structures with FEA (Finite Element Analysis) and basic theories of structural vibration and acoustic radiation, which, to some extent, helps the nonprofessional people understand the acoustical characters of these structures through acoustical means.In this paper, a redevelopment of ANSYS has been carried out using APDL language with a plate roof of VC language. Meanwhile, a software package has been compiled with MATLAB language, which makes structure acoustics designing audibly. This software package is easy to use, which owes to its friendly interface. It provides experienced researchers much convenience for noise prediction and estimation. Even for those designers who are not familiar with ANSYS, it offers assistance to them for structure acoustics and vibration analyzing as well.