| Inffuence of the near field of secondary source and the elasticity of pipe wall on active noise control performance of liquid-filled pipe |
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| 作者姓名： | GUO Gege SUN Hongling SUN Luyang CAO Shengnan YANG Jun |
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| 作者单位： | 1. Key Laboratory of Noise and Vibration, Institute of Acoustics, Chinese Academy of Sciences;2. University of Chinese Academy of Sciences |
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| 基金项目： | supported by the National Natural Science Foundation of China (12004412)； |
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| 摘 要： | The numerical models of liquid-filled straight pipe system with active silencers are established. The inffuence of the near field of secondary source in the active silencers and the elasticity of pipe wall on active noise control performance under sound excitation is analyzed.The results show that the near field of secondary source is non-uniform, and the active control effect of some frequencies is poor or even the sound pressure level will increase when the error points are located in this reg...
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