This paper investigates the use of inertial actuators to reduce the sound radiated by a submarine hull under excitation from the propeller. The axial forces from the propeller are tonal at the blade passing frequency. The hull is modeled as a fluid-loaded cylindrical shell with ring stiffeners and equally spaced bulkheads. The cylinder is closed at each end by circular plates and conical end caps. The forces from the propeller are transmitted to the hull by a rigid foundation connected to the propeller shaft. Inertial actuators are used as the structural control inputs. The actuators are arranged in circumferential arrays and attached to the internal end plates of the hull. Two active control techniques corresponding to active vibration control and discrete structural acoustic sensing are implemented to attenuate the structural and acoustic responses of the submarine. In the latter technique, error information on the radiated sound fields is provided by a discrete structural acoustic sensor. An acoustic transfer function is defined to estimate the far field sound pressure from a single point measurement on the hull. The inertial actuators are shown to provide control forces with a magnitude large enough to reduce the sound due to hull vibration.
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February 2012
Research Papers
Active Control of Sound Radiated by a Submarine Hull in Axisymmetric Vibration Using Inertial Actuators
Mauro Caresta,
Mauro Caresta
School of Mechanical and Manufacturing Engineering,
e-mail: mcaresta@yahoo.it
The University of New South Wales
, Sydney NSW 2052, Australia
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Nicole Kessissoglou
Nicole Kessissoglou
School of Mechanical and Manufacturing Engineering,
The University of New South Wales
, Sydney NSW 2052, Australia
Search for other works by this author on:
Mauro Caresta
School of Mechanical and Manufacturing Engineering,
The University of New South Wales
, Sydney NSW 2052, Australia
e-mail: mcaresta@yahoo.it
Nicole Kessissoglou
School of Mechanical and Manufacturing Engineering,
The University of New South Wales
, Sydney NSW 2052, Australia
J. Vib. Acoust. Feb 2012, 134(1): 011002 (8 pages)
Published Online: December 22, 2011
Article history
Received:
October 13, 2010
Revised:
May 23, 2011
Online:
December 22, 2011
Published:
December 22, 2011
Citation
Caresta, M., and Kessissoglou, N. (December 22, 2011). "Active Control of Sound Radiated by a Submarine Hull in Axisymmetric Vibration Using Inertial Actuators." ASME. J. Vib. Acoust. February 2012; 134(1): 011002. https://doi.org/10.1115/1.4004673
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