摘要
本文在对管壁上有缝隙时管内声场的理论分析基础上得出为计算管内声波传播的等效线路。当缝隙的尺度远小于波长时缝隙用集总参数的阻抗表示。这阻抗包括缝隙本身的阻抗和局部声场扰动引起的质量抗。文中给出矩形缝隙的具体结果并讨论了声源的作用。
Theoretical analysis of sound field within a tube with an aperture on its wall is presencedin this peper. Equivalent circuit is obtained for calculation of sound waves propagating within the tube.The aperture on tube wall can be represented by a lumped circuit impedance in the eqaivalent circuit.The impedance is written in terms of aperture impedance and an inertance due to the disturbance ofsound field by the aperture. Expressions for caculation of the impedance are given for a rectangularaperture.The effect of sound source is also discussed
出处
《声学学报》
EI
CSCD
北大核心
1996年第3期236-240,共5页
Acta Acustica
