基于波数谱法的潜艇模型声辐射特性分析

潜艇的声辐射模态为潜艇的噪声控制提供重要的依据,由于潜艇是非标准圆柱壳,基于圆柱壳的波数谱分析难以应用于不具备标准圆柱外形特征的实际潜艇结构,本文在潜艇模型外建立虚拟的圆柱面称作分析圆柱面,根据能量守恒定理,将潜艇声辐射问题转化为分析圆柱面上的声辐射问题,利用波数谱方法分析圆柱面的声辐射模式,从而给出潜艇结构的声辐射特性.

The acoustic radiation characteristics analysis of submarine by using wavenumber spectrum method

Submarine radiation modes provide an important basis for noise control.The submarine is a non-standard shell,wavenumber spectrum analysis based on cylindrical shell is difficult to be applied on the submarine which dose not have a standard cylindrical shape.A virtual cylindrical surface had been built outside the submarine in this article,which called the analysis cylindrical surface.According to the energy conservation theorem,the submarine acoustic radiation problem had transformed to the analysis cylindrical surface.The acoustic radiation characteristics of the submarine had been fond when wavenumber spectrum method had been used on analysis cylindrical surface.