A model of an active, plane, sound-absorbing system

被引：0
|
作者：
Tyutekin, VV
机构：
来源：
ACOUSTICAL PHYSICS | 1997年 / 43卷 / 02期
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D O I：
暂无
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
A physico-mathematical model of an active, plane, sound-absorbing system composed of two sound-transparent planes (receiving and radiating) interconnected by identical electronic units (delay lines) is developed. Formulas for calculating reflection, transmission, and absorption coefficients as well as the delay line tranfer functions are obtained as functions of frequency and the angle of incidence for arbitrary directivity patterns of receivers and radiators. One class of receivers and radiators characterized by directivity patterns with small backlobes that make the system safe against self-excitation is considered and the relevant acoustic characteristics presented.
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页码：202 / 206
页数：5
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