SOUND-TRANSMISSION INTO AN ORTHOTROPIC SHELL

被引：58

作者：

KOVAL, LR

机构：

[1] Department of Mechanical and Aerospace Engineering, University of Missouri-Rolla, Rolla

来源：

JOURNAL OF SOUND AND VIBRATION | 1979年 / 63卷 / 01期

基金：

美国国家航空航天局;

关键词：

D O I：

10.1016/0022-460X(79)90376-6

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A mathematical model is presented for the transmission of airborne noise through the walls of an orthotropic cylindrical shell. Parameters were varied to see how orthotropicity affected noise transmission. When compared to that for an isotropic shell, the cylinder transmission loss was found to be quite sensitive to the ratio of circumferential to axial modulus of elasticity. A modulus ratio greater than unity appears to enhance transmission loss in the mass-controlled region, while a ratio less than unity degrades it. Below the ring frequency, the trends appear to be reversed. The cylinder transmission loss appears to be relatively insensitive to changes in the shear modulus. © 1979.

引用

页码：51 / 59

页数：9

共 7 条

[1] EFFECT OF STIFFENING ON SOUND-TRANSMISSION INTO A CYLINDRICAL-SHELL IN FLIGHT [J].