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Evaluation method for acoustic underwater propulsion systems
The Journal of the Acoustical Society of America, 2021Acoustic underwater propulsion systems based on bulk acoustic waves and surface acoustic waves have been studied. In this study, an acoustic propulsion system that consists of a 2.065-MHz thickness-vibration-mode lead-zirconate-titanate ultrasonic transducer is evaluated. A prototype swimmer is designed and fabricated.
Deqing Kong +3 more
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Hydropulse underwater propulsion system
The Journal of the Acoustical Society of America, 1983A propulsion motor for an underwater vehicle such as an anti-submarine weapon. The motor includes a propulsion chamber into which water is admitted and then rapidly expelled through an exhaust nozzle, developing thrust to propel the vehicle. Gas generators are used to develop the successive hydropulses to expel the water following each filling of the ...
Allen C. Hagelberg, Clark E. Allardt
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Analyses Of Underwater Magnetohydrodynamic Propulsion
Proceedings of the 25th Intersociety Energy Conversion Engineering Conference, 2005Sea Water Magnetohydrodynamic (MHD) Propulsion For marine vehicles offers many unique features. There is no need for propellers, and therefore no noise associated that. Gear reduction system for the shafts is thus no longer needed. It offers maneuverbility by directional thrusts along with quietness.
J.B. Gilbertt, T.F. Lint
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Magnetohydrodynamic Underwater Vehicular Propulsion Systems
Proceedings of the 25th Intersociety Energy Conversion Engineering Conference, 2005The development of magnetohydrodynamic propulsion systems for underwater vehicles is a high risk endeavor that offers the possibility of anumber of significant advantages over conventional propeller propulsion systems. These advantages may include the potential for greater stealth characteristics, increased maneuverability, enhanced survivability ...
D.W. Swallom +4 more
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Underwater glider propulsion using chemical hydrides
OCEANS'10 IEEE SYDNEY, 2010A novel buoyancy engine for the propulsion of underwater gliders is presented. The research explores the direct volume expansion of hydrogen gas from the reaction of lithium hydride with seawater. As a result the seawater is expelled from the reaction chamber creating buoyancy and consequently also propulsion.
Jo Borchsenius, Shane Pinder
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Multiphase Computations for Underwater Propulsive Flows
16th AIAA Computational Fluid Dynamics Conference, 2003An algorithm for modeling compressible phenomena in multi-phase, reacting flows is developed. Time-marching preconditioned methodology is used as the algorithmic framework because of its inherent capability of handling multiple flow regimes, such as the incompressible bulk liquid flow, low Mach number compressible vapor flow and transonic/supersonic ...
Jules Lindau +3 more
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Myometry-driven compliant-body design for underwater propulsion
2010 IEEE International Conference on Robotics and Automation, 2010Within the broader scope of underwater biomimetics, in this paper we address the relevance of factors such as shape and elasticity distribution in the ability of a compliant device to imitate the kinematic behaviour of a fish. We assess the viability of myometry as a tool to determine candidate mechanical parameters without relying solely on analytical
AKANYETI, Otar +9 more
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Stored chemical energy propulsion system for underwater applications
17th Joint Propulsion Conference, 1981An underwater propulsion system that couples a lithium fueled boiler with a standard Rankine cycle has been developed and demonstrated in an ocean environment. Although the demonstration vehicle was a small diameter axisymmetric body, other configurations have been subjected to study and experimentation.
T. G. Hughes, R. B. Smith, D. H. Kiely
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Developments in Underwater Electric Propulsion Motors
OCEANS '79, 1979A morphological analysis of a multiplicity of electric motors intended for undersea operation and a review of the influence of recent developments in magnetic materials and solid state commutation on their design and performance is presented. These developments now provide an opportunity to design submersible electric drives that are more reliable ...
G. Giannini, J. McCartney
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Numerical analysis of the self-propulsion performance of seawater MHD propulsion underwater vehicle
Magnetohydrodynamics, 2023Prediction of the self-propulsion performance of seawater MHD underwater vehicles is of great significance for the design and rapid optimization of the vehicle. Based on a typical advanced two-pole superconducting magnet (with a large warm hole of 260 mm and a high magnitude of the magnetic field of 6.5 T) which is close to practical application, this ...
Xiaoqiang Chen +3 more
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