What is a mode
What is a mode
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什么是模式
DOI：
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发表时间：
1994
期刊：
影响因子：
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通讯作者：
D. Crighton
中科院分区：
文献类型：
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作者：
P. Barbone;D. Crighton
讨论了弹性体淹没在无限声流体中的振动模态的意义。特别是，研究表明，水下物体比真空中的同一物体具有更多的模态，流体/固体系统的各个模态通常对应于“流体”模态或“固体”模态的扰动，并且模态是不完整的。最后，结果表明，当构成不同模态的波类型之间的相互作用很强时，可能不可能确定一种模态是起源于流体还是固体。本研究结果在统计能量分析（SEA）、奇点展开法（SEM）和散射共振理论（RTS）等领域具有广泛的应用价值。[ONR支持的工作。]
The meaning of modes of vibration are discussed for elastic bodies submerged in an infinite acoustic fluid. In particular, it is shown that a submerged body has more modes than does the same body in vacuo, that the individual modes of the fluid/solid system correspond generally to perturbations of either ‘‘fluid’’ modes or ‘‘solid’’ modes, and that the modes are not complete. Finally, it is shown that when the interaction between the wave types that comprise the different modes are strong, it may be impossible to identify a mode as originating with either the fluid or the solid. The results of this study have great general relevance, especially in the areas of statistical energy analysis (SEA), the singularity expansion method (SEM), and the resonance theory of scattering (RTS). [Work supported by ONR.]