Light-weight silencer for suppressing propeller noise

Zhenbo Lu, Zhi Ming Tay, Wee Beng Tay, Yongdong Cui, Xiang Yu, Boo Cheong Khoo, Heow Pueh Lee, Gih Keong Lau

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In propeller-based electrical propulsion systems, the main source of noise is from the propeller. Noise suppression can also be achieved during noise propagation in the surrounding space. In the present paper, a duct with aerodynamic geometry is fabricated using 3D printing technology, and then the aerodynamic performance of such light-weight duct is experimentally evaluated. Furthermore, by combining with micro-perforated holes on the duct wall and a compact back cavity, it acts as a light-weight duct silencer which can be used for reducing propeller noise. Several different configurations are designed and experimentally investigated for seeking the optimized design.

Original languageEnglish
Title of host publication25th International Congress on Sound and Vibration 2018, ICSV 2018
Subtitle of host publicationHiroshima Calling
PublisherInternational Institute of Acoustics and Vibration, IIAV
Pages1391-1398
Number of pages8
ISBN (Electronic)9781510868458
StatePublished - 1 Jan 2018
Event25th International Congress on Sound and Vibration 2018: Hiroshima Calling, ICSV 2018 - Hiroshima, Japan
Duration: 8 Jul 201812 Jul 2018

Publication series

Name25th International Congress on Sound and Vibration 2018, ICSV 2018: Hiroshima Calling
Volume3

Conference

Conference25th International Congress on Sound and Vibration 2018: Hiroshima Calling, ICSV 2018
CountryJapan
CityHiroshima
Period8/07/1812/07/18

Keywords

  • Micro-perforated panel (MPP)
  • Propeller noise
  • Silencer

Fingerprint Dive into the research topics of 'Light-weight silencer for suppressing propeller noise'. Together they form a unique fingerprint.

  • Cite this

    Lu, Z., Tay, Z. M., Tay, W. B., Cui, Y., Yu, X., Khoo, B. C., Lee, H. P., & Lau, G. K. (2018). Light-weight silencer for suppressing propeller noise. In 25th International Congress on Sound and Vibration 2018, ICSV 2018: Hiroshima Calling (pp. 1391-1398). (25th International Congress on Sound and Vibration 2018, ICSV 2018: Hiroshima Calling; Vol. 3). International Institute of Acoustics and Vibration, IIAV.