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Asymmetric Thruster

Detailed Technology Description

Technology: Woods Hole Oceanographic Institution has developed an asymmetric propulsion mechanism capable of both axial thrust and lateral maneuverability from a single axis of rotation. The mechanism is comprised of one or more propeller blades distributed asymmetrically around a rotating hub. The mechanism is operated under the guidance of a control system capable of sensing the radial position of at least one of the blades, and further capable of executing various radial blade speeds throughout the course of a single revolution as a means to maneuver the vehicle. The thruster is intended for use on aquatic vehicles to minimize cost and maximize reliability and endurance

*Abstract

Overview: Traditionally, propulsion mechanisms are comprised of two or more blades distributed symmetrically around a central hub, built into or mounted to a marine craft. Aquatic vehicles generally employ one or more thrusters for propulsion and one or more actuators for maneuverability and propulsion with variable rotational speed that can be set to a specific constant. The number of components comprising traditional aquatic vehicle propulsion mechanisms can lead to greater risk of failure modes as well as increased manufacturing and maintenance costs. Given these disincentives, there is a need for a simplified marine thruster with fewer components and greater control over radial blade speed.

*Principal Investigator

Name: Ben Allen

Department:

Name: Thomas Austin

Department:

Name: Frederic Jaffre

Department:

Name: Jeffrey Kaeli

Department:

Name: Robin Littlefield

Department:

Name: Michael Purcell

Department:

Country/Region

USA