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首页> 外文期刊>Acoustical physics >Experimental Confirmation of an Analytical Model of the Sound Propagation in a Rectangular Duct in the Presence of Impedance Transitions and Development of an Impedance Eduction Method Based on it
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Experimental Confirmation of an Analytical Model of the Sound Propagation in a Rectangular Duct in the Presence of Impedance Transitions and Development of an Impedance Eduction Method Based on it

机译：基于IT的阻抗过渡存在下矩形管道中声音传播分析模型的实验证据

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摘要

The authors have carried out a systematic study of the accuracy in the impedance eduction of liners in "interferometer with flow" rigs in the absence of grazing flow. A method is proposed for determining the confidence interval of sound pressure measurements for such a rig. The analytical model of sound propagation in a rectangular duct in the presence of impedance transitions, previously proposed by the authors and described with the Wiener-Hopf method, is experimentally confirmed. A method is developed and implemented for impedance eduction of liners in the absence of flow, based on an analytical method that takes into account the passage of sound modes through the impedance transition.
机译：作者对在没有放牧流动的情况下，对“干涉仪的流动仪的流动仪的阻抗”精度进行了系统研究。 提出了一种用于确定这种钻机声压测量的置信区间的方法。 实验证实，在提出的阻抗过渡存在下，在存在阻抗过渡存在下的矩形繁殖中的分析模型，并用Wiener-Hopf方法进行了实验证实。 基于通过阻抗转换的分析方法，在没有流动的情况下开发和实施一种方法，用于衬里的阻抗。

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