Results 11 to 20 of about 3,835 (288)
Design and Control of an Underwater Robot Based on Hybrid Propulsion of Quadrotor and Bionic Undulating Fin [PDF]
Journal of Marine Science and Engineering, 2022 Stable, quiet, and efficient propulsion methods are essential for underwater robots to complete their tasks in a complex marine environment. However, with a single propulsion method, such as propeller propulsion and bionic propulsion, it is difficult to ...
Xiaofeng Zeng +5 more
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Avenues for Underwater Propulsion [PDF]
Defence Science Journal, 1992 This study reviews thermal propulsion systems related to underwater application, covering the conceptual idea, the technology and the mechanism. Some of the salient features of the stored chemical energy propulsion system (SCEPS) technology and the unconventional engines are discussed.
Ramanarayanan, C.P.
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Synthetic Jet Propulsion for Small Underwater Vehicles [PDF]
Proceedings of the 2005 IEEE International Conference on Robotics and Automation, 2006 This paper proposes a new synthetic jet actuation concept for small, low speed, highly maneuverable AUVs. Synthetic jet thrusters, which produce jets of vortex rings, are inspired by the pulsatile jet propulsion of salps, jellyfish, and squid. To assess the potential utility of this scheme, we developed synthetic jet actuator prototypes, and verified ...
Thomas, AnnMarie Polsenberg +4 more
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Analysis of the Propulsion Performance and Internal Flow Field of an Underwater Launcher [PDF]
Applied Sciences, 2022 The gas-curtain launch is designed to address the shortcomings of conventional underwater launchers, such as poor dependability and low muzzle velocity. In this paper, the influence of jet structures on the propulsion performance and internal flow field ...
Xinwei Zhang, Yonggang Yu
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Effect of Frequency–Amplitude Parameter and Aspect Ratio on Propulsion Performance of Underwater Flapping-Foil [PDF]
BiomimeticsThe propulsion system is the core component of unmanned underwater vehicles. The flapping propulsion method of marine animals’ flippers, which allows for flexibility, low noise, and high energy utilization at low speeds, can provide a new perspective for
Hao Ding +4 more
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MHz-Order Surface Acoustic Wave Thruster for Underwater Silent Propulsion [PDF]
Micromachines, 2020 High frequency (MHz-order) surface acoustic waves (SAW) are able to generate intense fluid flow from the attenuation of acoustic radiation in viscous fluids as acoustic streaming.
Naiqing Zhang, Yue Wen, James Friend
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UNIVPM BRAVe: A Hybrid Propulsion Underwater Research Vehicle [PDF]
International Journal of Automation Technology, 2017 In the last decade, the underwater activities performed by archaeologists and biologists have benefited from scientific research on the guidance, control, and sensory systems of unmanned vehicles. In fact, because underwater sites of interest are often difficult for divers to access, the use of unmanned vehicle technology to conduct surveys could be ...
David Scaradozzi +7 more
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A Study on the Propulsion Performance of Hybrid-Driven Underwater Glider Equipped with a Kappel Tip Rake Propeller [PDF]
Applied SciencesIn order to solve the problem of the lack of maneuverability of the conventional underwater glider, this paper proposes a hybrid-driven underwater glider equipped with a Kappel tip rake propeller, analyzes the propulsion performance of different types of
Chen-Wei Chen +3 more
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Biomimetic propulsion system efficiency for unmanned underwater vehicle. [PDF]
Sci RepAbstract This paper covers experimental research provided for Biomimetic Unmanned Underwater Vehicle (BUUV). The tests were conducted in a laboratory water tunnel equipped with a direct force-measured sensor and system for Particle Image Velocimetry (PIV) analysis.
Szymak P +4 more
europepmc +4 more sources
Development of a tentacle propulsion technique for underwater application [PDF]
IOP Conference Series: Materials Science and Engineering, 2013 As robotic technology matures and more platforms are fielded in unstructured real-world situations, the more new areas of applications are being thought for robotic deployment. After successes in industrial robots, researchers are now trying to explore new robots with biological features of different biological creatures like, snake, bird, and spider ...
T Alamgir, M M Rashid, M R Khan
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