Abstract
Dutch navy ships are designed and built to have a low underwater signature. For low frequencies
however, tonal vibrations of a gearbox can occur, which might lead to increased
acoustic signatures. These vibrations are hard to reduce by passive means. To investigate the
possibilities of active vibration control to reduce the underwater signature, a full scale experiment
was performed with an active vibration control system on board of a navy ship. For
this purpose six special, high efficiency, actuators were built and mounted on the gearbox. A
MIMO adaptive feedforward control system was used to reduce the tonal vibrations of the
gearbox which were excited by the diesel engine. Vibrations onboard and underwater acoustic
pressures were used to monitor the performance of the system during full scale runs on the
underwater acoustic range in Bergen, Norway. It can be concluded that the system is able to
reduce the vibration and the acoustic signature significantly.
Original language | Undefined |
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Title of host publication | Proceedings of the 17th International Congress on Sound and Vibration, ICSV17 |
Place of Publication | Auburn, USA |
Publisher | International Institute of Acoustics and Vibration (IIAV) |
Pages | 1-8 |
Number of pages | 8 |
ISBN (Print) | not assigned |
Publication status | Published - 18 Jul 2010 |
Event | 17th International Congress on Sound & Vibration, ICSV 2010 - Cairo, Egypt Duration: 18 Jul 2010 → 22 Jul 2010 Conference number: 17 |
Publication series
Name | |
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Publisher | International Institute of Acoustics and Vibration |
Conference
Conference | 17th International Congress on Sound & Vibration, ICSV 2010 |
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Abbreviated title | ICSV 2010 |
Country/Territory | Egypt |
City | Cairo |
Period | 18/07/10 → 22/07/10 |
Keywords
- METIS-275906
- IR-76427
- EWI-19524
- Active vibration control
- Adaptive control