Results 261 to 270 of about 3,835 (288)

Developments in Underwater Electric Propulsion Motors

OCEANS '79, 1979
A 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
openaire   +1 more source

Underwater soft jet propulsion based on a hoberman mechanism

2018 IEEE International Conference on Soft Robotics (RoboSoft), 2018
This paper presents the results of single pulsation tests aimed to evaluate the performance of a Hoberman sphere mechanism as an underwater jet propulsor. The tests were carried out in a fish tank and the position of the robot was visually tracked to estimate the speed and the contraction kinematic.
Saverio Iacoponi, Giacomo Picardi, Mrudul Chellapurath, Marcello Calisti, Cecilia Laschi   +4 more
openaire   +3 more sources

Development of flexible underwater robots with caudal fin propulsion

2010 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2010
Fish type underwater robots has a lot of possibilities such as good mobility and high efficiency. Most of the fish type robots developed up to now have complicated mechanisms with complicated motion control. It results in that the structure and the movement of robots are different from that of fishes. The purpose of our work is to develop creature-like
Jun Shintake, Aiguo Ming, Makoto Shimojo
openaire   +1 more source

Manufacture of Propulsion Systems for Micro Underwater Vehicles

Volume 4: Fatigue and Fracture, Heat Transfer, Internal Combustion Engines, Manufacturing, and Technology and Society, 2006
Underwater vehicles have been used in many ocean exploration and rescue applications. Recent researches are trending toward the vehicle’s application in smaller regions. As size of the parts decreases, challenges exist in the manufacturing of critical components which are hard to obtain commercially.
Yih-Lin Cheng, Yu-Shen Shen, Jiang-Hong Lin   +2 more
openaire   +1 more source

Optimization of man's energy during underwater paddle propulsion

Ergonomics, 1979
Abstract This study is an attempt to analyse man as a self-propelled underwater vehicle in order to define the optimum levels of his muscular work that would minimize the oxygen consumption needed for underwater paddle propulsion. Such an attempt is essential to the efficient operation of man in the sea. The optimum parameters namely: the travel speed,
openaire   +2 more sources

Liftable propulsion mechanisms in underwater robots

The Proceedings of the Dynamics & Design Conference, 2021
Teppei INOUE, Geunho LEE, Pwint Phoo Wai
openaire   +1 more source

Underwater self-sustaining combustion and micro-propulsion properties of Al@FAS-17/PTFE-based direct-writing nanothermite

Chemical Engineering Journal, 2023
Chuanhao Xu, Pengfei Tang, Hebin Bao
exaly  

Development of an underwater robot with undulation propulsion

Bioinspiration, Biomimetics, and Bioreplication XIII, 2023
Giovanni Bianchi, Lorenzo Maffi, Simone Cinquemani   +2 more
openaire   +1 more source

Effects of actuator-substrate ratio on hydrodynamic and propulsion performances of underwater oscillating flexible structure actuated by macro fiber composites

Mechanical Systems and Signal Processing, 2022
Junqiang Lou, Tehuan Chen, Yiling Yang   +2 more
exaly  

UNDERWATER PROPULSION

Symposium on Deep Submergence Propulsion and Marine Systems, 1966
openaire   +1 more source