Marine thruster
This article provides insufficient context for those unfamiliar with the subject.(July 2016) |
A marine thruster is a device for producing directed
Positioning Thrusters
Positioning thrusters come in applications,
Propulsion Thrusters
Propulsion thrusters are those thrusters which provide longitudinal motion for vessels as an alternative to traditional propellers. There are a variety of types of propulsion thrusters but the most common form is the azimuth thruster, that can rotate 360 degrees on a vertical axis to optionally produce thrust for maneuvering. (Lindborg, 1997).[4][1] The amount of thrust produced is controllable. There are variants of azimuth thrusters such as CRP thrusters which have two contra-rotating Azimuth thrusters or Swing-Up Azimuth thrusters that can be retracted when not in use to reduce drag on the vessel (Wartsila Encyclopedia).[5] Other propulsion thrusters like outboard thrusters which can be easily put in and out of service, rim drive thrusters that are driven via the external ring with the blades mounted on the inner face of the ring with their tips towards the center, or tilted thrusters pointed away from the hull to minimize interaction with the ship and increase thruster efficiency.[clarification needed] The choice between using thrusters or traditional propellers to propel marine vessels is a compromise between versatility and efficiency. Propellers are designed to work in-line with a propulsion plant and produce one-directional thrust while thrusters are more customizable and have a more versatile application. They have this versatility at the cost of complexity and lower efficiency – they are not as robust as propellers and typically have applications on smaller vessels that don't require as much power.
Reference List
- ^ a b c "Azimuth thrusters". www.kongsberg.com. Retrieved 2020-04-23.
- ^ "Bow Thrusters: Construction and Working". www.marineinsight.com. Retrieved 2020-04-23.
- PMID 29673224.
- )
- ^ "Thrusters". Wärtsilä Encyclopedia of Marine Technology. Retrieved 2020-04-23.