Experimental investigation of the effect of propeller characteristic parameters on propeller singing

Propeller singing is always a kind of perplexing ship noise. Although it has been widely accepted that shedding vortex stimulates singing, the dominant mechanism determining propeller singing remains unknown. In this work, to quantitatively investigate the effect of propeller's primary characteristic parameters (i.e., rotation speed and advance coefficient) on singing, the authors quantified propeller singing using a set of spectrum variables, and measured and analyzed the acoustic signal of the DTMB4381 propeller under a variety of test conditions. Theoretical analysis is conducted first to explore flow features surrounding the blade element that are closely associated to singing, as well as to estimate singing frequencies under various test conditions. Then, by comparing acoustic spectra of no-singing and singing conditions, the features of singing spectrum and the high frequency range dominated by singing are deduced, and the effect of propeller characteristic parameters on singing is further investigated separately from aspects of whole band, broadband, and narrowband. Results show that rotation speed has substantial effect on the singing features such as dominant frequencies, sound pressure level (SPL) and the spectrum shape of narrowband. Only low advance coefficient can result in a fall in SPL and an increase in the number of narrow bands in the singing acoustic spectrum. This work provides comprehensive insight into the singing phenomenon and contributes to the quantitative foundation for exploring the detail generation mechanism of singing.

• Record URL:
  • https://doi.org/10.1016/j.oceaneng.2022.111538
• Record URL:
  • http://www.sciencedirect.com/science/article/pii/S0029801822009052
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00298018
• Supplemental Notes:
  • © 2022 Elsevier Ltd. All rights reserved. Abstract reprinted with permission of Elsevier.
• Authors:
  • Wang, Ying
  • Cao, Linlin
  • Zhao, Guoshou
  • Liang, Ning
  • Wu, Rui
  • Wu, Dazhuan
• Publication Date: 2022-7-15

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References; Tables;
• Pagination: 111538
• Serial:
  • Ocean Engineering
  • Volume: 256
  • Issue Number: 0
  • Publisher: Pergamon
  • ISSN: 0029-8018
  • EISSN: 1873-5258
  • Serial URL: http://www.sciencedirect.com/science/journal/00298018

Subject/Index Terms

• TRT Terms: Acoustic radiation; Acoustics; Experiments; Propellers; Quantitative analysis; Ships
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 01850517
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 28 2022 1:33PM