Hydrofoil vibration and noise reduction with leading edge isolation

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

Abstract

A technique for reducing the vibration and noise from hydrofoils experiencing unsteady hydrodynamic loads was demonstrated experimentally. Such unsteady loads are generated when hydrofoils interact with approach-flow disturbances and are concentrated in the vicinity of the leading edge. A single stage vibration isolation mount was incorporated into a hydrofoil at its 20% chord location to inhibit the unsteady loads generated near its leading edge from being transmitted to the remainder of the foil and any structures coupled to it. The hydrofoil was tested in a water tunnel facility with a wake generator placed upstream to produce the approach-flow disturbances. The reduction in the unsteady loading on the portion of the hydrofoil isolated from the leading edge was inferred from vibration measurements; 5 to 10 dB reductions were demonstrated.

Original languageEnglish (US)
Title of host publication19th National Conference on Noise Control Engineering 2005, Noise-Con 05
Pages623-629
Number of pages7
Volume1
StatePublished - 2005
Event19th National Conference on Noise Control Engineering 2005, Noise-Con 2005 - Minneapolis, MN, United States
Duration: Oct 15 2005Oct 17 2005

Other

Other19th National Conference on Noise Control Engineering 2005, Noise-Con 2005
CountryUnited States
CityMinneapolis, MN
Period10/15/0510/17/05

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

Fingerprint Dive into the research topics of 'Hydrofoil vibration and noise reduction with leading edge isolation'. Together they form a unique fingerprint.

Cite this