有限长均匀截面声波导管的等效T型网络研究

Study on the T-type Equivalent Network of Uniform Cross Section and Finite Long Acoustic Waveguide

依据电传输线理论和声电类比原理,讨论并推导出了管中为平面波时有限长均匀截面声波导管的等效T型网络,并通过等效电路分析法推导出了其阻抗转移公式,为声波导管阻抗分析提供了一种新方法,使声波导管的设计更简便。

Based on the theory of electric transmission line and the electroacoustic analogy method, the T_type equivalent network of the acoustic waveguide which is uniform and finitely long is derived in which plane wave propagate and the formula of its impedance transfer is obtained as well by means of the equivalent circuit analysis. It is proposed a new analytical method for the impedance of the waveguide, which make the designing of acoustic waveguide more easy and simple as well as convenient.