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首页> 外文期刊>Chinese journal of aeronautics >Match-Mode method and its numerical simulation for rotor-stator interaction source modes and propagation modes in an annular duct with multi-treatments
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Match-Mode method and its numerical simulation for rotor-stator interaction source modes and propagation modes in an annular duct with multi-treatments

机译：多重处理的环形管道中转子-定子相互作用源模式和传播模式的匹配模式方法及其数值模拟

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摘要

The suppressing design of the engine nacelle in an aircraft can benefit from the develop- ment of the prediction system for the sound fields in engine ducts which includes the prediction of the source generation and that of sound propagation in ducts. First, the acoustic match-mode principle between the source modes of rotor-stator interaction noise and the propagation modes is presented in this paper. Second, by utilizing this principle, the theoretical prediction method for rotor-stator inter- action noise generation and its propagation and attenuation in an annular duct with multi-treatments is developed.
机译：飞机发动机舱的抑制设计可受益于发动机管道内声场预测系统的开发，该系统包括声源的产生和管道中声传播的预测。首先，提出了转子－定子相互作用噪声源模式与传播模式之间的声学​​匹配模式原理。其次，利用这一原理，开发了转子-定子相互作用噪声产生及其在环形管道中经过多次处理的传播和衰减的理论预测方法。

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