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.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
Choy YS, Huang LX (2002) Experimental studies of a drumlike silencer. J Acoust Soc Am 112:2026–2035
Choy YS, Hung LX (2005) Effect of flow on the drumlike silencer. J Acoust Soc Am 118:3077–3085
Huang LX (2002) Modal analysis of a drumlike silencer. J Acoust Soc Am 112:2014–2025
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
Liu Y et al (2014) Reactive control of subsonic axial fan noise in a duct. J Acoust Soc Am 136:1619–1630
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.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2016 Springer-Verlag Berlin Heidelberg
About this paper
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
Download citation
DOI: https://doi.org/10.1007/978-3-662-48868-3_10
Published:
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-662-48866-9
Online ISBN: 978-3-662-48868-3
eBook Packages: EngineeringEngineering (R0)