WAVE PROPAGATION IN ELASTIC LAYERS WITH DAMPING

被引：0

作者：

Sorokin, Sergey ^{[1
]}

Darula, Radoslav ^{[1
]}

机构：

[1] Aalborg Univ, Dept Mech & Mfg Engn, Fibigerstr 16, DK-9220 Aalborg, Denmark

来源：

PROCEEDINGS OF THE 23RD INTERNATIONAL CONGRESS ON SOUND AND VIBRATION: FROM ANCIENT TO MODERN ACOUSTICS | 2016年

关键词：

HIERARCHY;

D O I：

暂无

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The conventional concepts of a loss factor and complex-valued elastic moduli are used to study wave attenuation in a visco-elastic layer. The hierarchy of reduced-order models is employed to assess attenuation levels in various situations. For the forcing problem, the attenuation levels are found for alternative excitation cases. The differences between two regimes, the low frequency one, when a waveguide supports only one propagating wave, and the high frequency one, when several waves are supported, are demonstrated and explained

引用

页数：8

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