摘要
本文以单维波的波动方程及声传播的能量分析为基础,探讨声波在管道中的传播现象,在截面积变化的管道中声波的传播特性。从能量守恒及质量流守恒的观点,定量地分析计算膨胀腔抗性消声器的反射波与传导波,及扩张式消声器的传导损耗,为设计抗性消声器阐明了理论基础,给出了具体计算方法。
On the basis of the wave equation of one-dimensional wave and the analysis of the energy of acoustic propagation the phenomena of the sound wave in pipeline and the characteristics of the sound in the pipe with changing cross-sectional area are discussed. From the view point of conservative of energy and conservative of mass flow the reflective wave and transmitted wave of expansion chamber type reactive silencer have been quantitatively analyzed,then its transmissiom loss can be calculated. In this paper the theorectical fundamentals of a reactive silencer is clearly described and the design process is provided.
出处
《沈阳工业大学学报》
EI
CAS
1990年第3期19-24,共6页
Journal of Shenyang University of Technology
关键词
声波
传播
管道
消声器
膨胀腔
acoustic propagation
energy transfer
reactive muffler
pipe line
expansion chambers
