Abstract

In this paper, we describe a method for solving the problem for calculating the acoustic radiation of a deformable solid oscillating in a compressible fluid by using the mode analysis procedures found in mechanoacoustic systems. The method is based on an approximate representation of the acoustic radiation loss function and modifications of the Lanczos method. This allows constructing an efficient computational algorithm for finding sound-emitting forms of resonant oscillations and the corresponding complex values of eigenfrequencies. The developed method was tested using a model problem as an example.

中文翻译：

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机械声学系统的模式分析方法

摘要

在本文中，我们描述了一种通过使用机械声学系统中的模式分析程序来解决计算可压缩流体中可变形固体振荡的声辐射的方法。该方法基于声辐射损失函数的近似表示和Lanczos方法的修改。这允许构造一种有效的计算算法，以找到共振振荡的发声形式和本征频率的相应复数值。以模型问题为例对开发的方法进行了测试。