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Monday, July 8 • 16:10 - 16:30
[NO-SHOW] UNDERWATER RADIATION NOISE PREDICTION OF POLAR SCIENTIFIC ICEBREAKER

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According to the underwater radiation noise requirements of the Polar Scientific Icebreaker, the finite element and statistical energy models were established to calculate the low-frequency and medium-high frequency radiation noise. The prediction and evaluation of underwater radiation noise under the condition of 11 knots speed were carried out. The results show that the underwater noise level of the Polar Scientific Icebreaker is mainly determined by two sets of pod propulsion devices, and the contribution of other mechanical is relatively little. Due to the excessive underwater radiation noise of the pod propeller, the requirements of ICES 209 cannot be met in the frequency range of 90 Hz~600 Hz. For the prediction result, the suggestions to optimize the tip of propeller is given.

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avatar for VENUGOPALAN PALLAYIL

VENUGOPALAN PALLAYIL

DEPUTY HEAD/SENIOR RESEARCH FELLOW, ACOUSTIC RESEARCH LAB, NATIONAL UNIVERSITY OF SINGAPORE
A senior researcher with 30 years of experience in underwater acoustics research. Senior member of IEEE, Member of IIAV, ASA and Society of Acoustics Singapore. IEEE OES AdCom and JOAB member, General Chair for OCEANS 2020 Singapore and co-Chair for ICSV 28 Singapore. See my technical... Read More →

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Monday July 8, 2019 16:10 - 16:30 EDT
Westmount 5
  T12 Underwater & marit. noise, RS01 Underwater sound