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Fluid-Structure-Sound Interactions and Control pp 63–68Cite as

Fan Noise Control by a Flexible Casing Structure

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Part of the book series: Lecture Notes in Mechanical Engineering ((LNME))

Abstract

The work presented here examines the performance and effectiveness of fan noise control in a duct by using light panels with backing cavity. The method aims to suppress the low-frequency noise by destructive interference between the acoustic field in the duct and sound radiation from the panel. A three-dimensional numerical model is established to investigate the details of flow-structure interaction and its influence on the fan noise suppression. The aerodynamic characteristics near the fan blades and the vibration of the flexible structure also plays an important role in the noise suppression. The findings of this study will provide an alternative method of fan noise abatement focusing on the source.

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References

  • Choy YS, Huang LX (2002) Experimental studies of a drumlike silencer. J Acoust Soc Am 112:2026–2035

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  • Liu Y et al (2012) Noise suppression of a dipole source by tensioned membrane with side-branch cavities. J Acoust Soc Am 132:1392–1402

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  • Liu Y et al (2014) Reactive control of subsonic axial fan noise in a duct. J Acoust Soc Am 136:1619–1630

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Acknowledgments

The authors wish to acknowledge the funding support from NSFC-2012,51205337, the Research Grants Council of the Hong Kong SAR (BQ33E) and The Hong Kong Polytechnic University for the research studentship.

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Authors and Affiliations

  1. Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hong Kong, China

    Z. B. Wang, Y. S. Choy & Q. Xi

Authors
  1. Z. B. Wang
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  2. Y. S. Choy
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  3. Q. Xi
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Corresponding author

Correspondence to Y. S. Choy .

Editor information

Editors and Affiliations

  1. Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen, China

    Yu Zhou

  2. Curtin University, Bentley, Australia

    A.D. Lucey

  3. The Hong Kong Polytechnic University, Hong Kong, China

    Yang Liu

  4. The University of Hong Kong, Hong Kong, China

    Lixi Huang

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© 2016 Springer-Verlag Berlin Heidelberg

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Cite this paper

Wang, Z.B., Choy, Y.S., Xi, Q. (2016). Fan Noise Control by a Flexible Casing Structure. In: Zhou, Y., Lucey, A., Liu, Y., Huang, L. (eds) Fluid-Structure-Sound Interactions and Control. Lecture Notes in Mechanical Engineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-48868-3_10

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  • DOI: https://doi.org/10.1007/978-3-662-48868-3_10

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-662-48866-9

  • Online ISBN: 978-3-662-48868-3

  • eBook Packages: EngineeringEngineering (R0)

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