Structure-borne noise reduction for an infinite, elastic cylindrical shell

被引：15

作者：

Ko, SH ^{[1
]}

Seong, W ^{[1
]}

Pyo, S ^{[1
]}

机构：

[1] Seoul Natl Univ, Dept Naval Architecture & Ocean Engn, Coll Engn, Seoul 151742, South Korea

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2001年 / 109卷 / 04期

关键词：

Acoustic noise - Acoustic waves - Air - Boundary conditions - Elasticity - Elastomers - Mathematical models - Noise abatement - Vibrations (mechanical) - Water;

D O I：

10.1121/1.1349540

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A theoretical model was developed to evaluate the reduction of structure-borne noise generated by an axially symmetric ring force which is applied on the interior of the cylindrical shell. The vibrating cylindrical shell is coated with a microvoided elastomer that is acoustically soft material designed for the reduction of the generated noise. The analytical model is a two-layer shell structure comprised of a cylindrical shell and an outer layer (coating) that is perfectly bonded to the cylindrical shell. The outer and inner surfaces of the coated shell are in contact with water and air, respectively, The analysis for this problem is based on the theory of elasticity, acoustic wave equations, and pertinent boundary conditions. Effects of various parameters such as coating thickness and material properties on the noise reductions are presented. (C) 2001 Acoustical Society of America.

引用

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页码：1483 / 1495

页数：13

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