AN INVESTIGATION OF CAVITATION NOISE (2ND REPORT) - ANALYSIS OF CAVITATION NOISE DATA USING TIME HISTORY OF NOISE SPECTRA

The paper deals with data analysis of cavitation noise emitted from a marine propeller using Time History of Noise Spectra (THNS), which consists of the spectra of the blade frequency and its harmonic spectra of a propeller printed on a paper using fount developed by the authors. Describability of THNS was tested using data of a model propeller working in a non-uniform flow in the cavitation tunnel and invaluable data recorded in the experiments on the actual and model ships. The authors conclude that THNS patterns depend on the characteristics of the blade frequency noise of an individual propeller and that, at least, the method may be used to estimate cavitation conditions of a propeller after many actual and model ship experiments and capture the relationship between the blade frequency noise and its spectra.

• Supplemental Notes:
  • Ship Res. Inst. Japan Papers, 26 (1989) p.1 (March) [17 p., 13 ref., 2 tab., 24 fig., 10 phot.]
• Authors:
  • Arai, C
  • TAKAHASHI, H
• Publication Date: 1989

Language

• Japanese

Subject/Index Terms

• Old TRIS Terms: Cavitation noise vibration analysis
• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00697099
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM