航空发动机环形燃烧室噪声频谱分析及声激励源识别研究 |
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引用本文: | 盛元生,王克明,吴晓明.航空发动机环形燃烧室噪声频谱分析及声激励源识别研究[J].航空发动机,2003,29(2):38-43. |
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作者姓名: | 盛元生 王克明 吴晓明 |
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作者单位: | 沈阳航空工业学院,沈阳,110034 |
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基金项目: | 航空科学基金,航空发动机结构完整性预研资助项目(96C54002) |
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摘 要: | 论述了燃烧室的声激励源、环形燃烧室内高阶声模态及其截止频率。综合分析了燃烧室冷吹和热态各工况噪声测试结果。对声激励的高能量区、燃烧噪声主峰以及一些重要的离散频率分量进行了分析和识别。
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关 键 词: | 航空发动机 燃烧噪声 频谱分析 声源识别 |
修稿时间: | 2002年1月5日 |
Analysis of Noise Spectrum and Identification of Acoustic Excitation Sources in Annular Combustion Chamber of Aeroengine |
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Authors: | Shen Yuanshen Wang Kerning Wu Xiaoming |
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Abstract: | Acoustic excitation sources, high order modes and cutoff frequencies of noise were discussed for an annular combustion chamber. A comprehensive analysis of noise measurements was made at various operating conditions with/without burning. The high energy range of acoustic excitation, the peaks of combustion noise and major discrete frequencies are identified. |
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Keywords: | aeroengine combustion noise spectrum analysis noise source identification |
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