Efforts continue to improve the Modeling of Thrusters

Thursday, September 19, 2013
Robert Heerkink is project manager at the Ships department of MARIN, the Maritime Research Institute Netherlands.

MARIN uses thrusters in many projects. For a typical model scale, around 1:50 to 1:60, relatively small thrusters are required. Thrusters for these models are available ranging from 50 mm to 80 mm nozzle diameters.  In the past these thrusters were always modelled with a horizontal shaft.
By tilting the nozzle, the closest possible match was achieved between the client specifications and the modelled thruster for the basin tests.
Due to the ever-evolving process in improving the models, new thrusters were built witha 7-degree tilted thruster shaft.
Special gears were made for a reliable and durable thruster model and with these new thrusters it is still possible to mount nozzles with a slightly different angle. See figures for examples.
The newly built thrusters give clients the ability to choose a more accurate representation of the thrusters used during model testing.

Robert Heerkink is project manager at the Ships department of MARIN, the Maritime Research Institute Netherlands. MARIN offers simulation, model testing, full-scale measurements and training programs, to the shipbuilding and offshore industry and governments.

 

(As published in the September edition of Maritime Reporter & Engineering News - www.marinelink.com)
 

  • 7 deg. tilted axis,  5 deg. tilted nozzle

    7 deg. tilted axis, 5 deg. tilted nozzle

  • Model with mounted thrusters

    Model with mounted thrusters

Maritime Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter February 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Marine Propulsion

BRP Wins Industry Award for Rotax Innovation

BRP’s Rotax Intelligent Shift and Throttle (iST) system was recognized by the National Marine Manufacturers Association (NMMA) with an Innovation Award in the Jet

Cummins Expands Marine Tier 3 Product Line

Cummins Inc., a manufacturer of diesel engines and generator sets for the marine industry, has launched a new Onan marine U.S. Environmental Protection Agency (EPA) Tier 3-certified generator,

James Troop Supplies Engines for 3 Naval Vessels

Liverpool City Region (UK) based ship engine specialist James Troop & Co has won an order to supply Volvo Penta diesel engines for three European naval vessels being built on Merseyside.

Offshore

Premier Oil and Rockhopper Abandon Ocean Rig Contract

Two of the major British players in Falkland Islands offshore oil development, Premier Oil and Rockhopper Exploration, cancelled a joint venture contract with Ocean Rig UDW.

US Oil Drillers Cut Rigs to Least in 6 Years

U.S. energy firms this week cut oil rigs for an eighth week in a row to the lowest levels since January 2010, data showed on Friday, as energy firms continue to

Eni, Exxon, Statoil Win Irish Offshore O&G Licences

The Irish government said on Thursday it had awarded oil and gas licences to companies including oil majors Eni, Exxon and Statoil , allowing them to explore for hydrocarbons off the coast of Ireland.

Navigation

N.E. Fishermen Warned of Extreme Cold, Wind Chills

The Coast Guard is urging the Massachusetts and Rhode Island fishing fleet to take caution heading into the weekend when life threatening temperatures and wind chills are forecasted.

Ice Condition 3 for Delaware Bay

The Captain of the Port (COTP), Delaware Bay is notifying mariners that Ice Condition 3 has been set for the Port which includes the Delaware Bay and River, the C&D Canal,

Volvo Penta Debuts Innovative Glass Cockpit

The new generation of Glass Cockpit expands Volvo Penta’s collaboration with Garmin for an advanced monitoring and control system that makes boating easier. And its clever application,

Marine Power

DARPA All Set To Launch Submarine Hunting Drone

The Defense Advanced Research Projects Agency (DARPA) will launch in April a sleek, 132-foot warship from Portland, OR, testing its abilities over a succeeding period of 18 months.

Cummins Expands Marine Tier 3 Product Line

Cummins Inc., a manufacturer of diesel engines and generator sets for the marine industry, has launched a new Onan marine U.S. Environmental Protection Agency (EPA) Tier 3-certified generator,

James Troop Supplies Engines for 3 Naval Vessels

Liverpool City Region (UK) based ship engine specialist James Troop & Co has won an order to supply Volvo Penta diesel engines for three European naval vessels being built on Merseyside.

Naval Architecture

BAE Systems Awarded £201m to Advance Successor Sub Design

The U.K. Ministry of Defence (MoD) has awarded BAE Systems £201 million to further the design of a successor to the Royal Navy's Vanguard class submarines.   The

The Next Generation of Hull Performance Management

Hull performance monitoring solutions can offer significant fuel savings potential, a fact that is prompting growing interest from the maritime industry. To spur

GTT, DSME Partner for NO96 Max Development

GTT signs a cooperation agreement with Daewoo Shipbuilding & Marine Engineering aiming at the industrialization of its NO96 Max technology   GTT, a designer of

Dynamic Positioning

Neptune Awarded Kitan Contract

Neptune has been awarded an air diving services contract by Technip Oceania Pty Ltd (“Technip”) for the Kitan disconnection project. The project is offshore

Maersk Line Shifts Asia HQ from Singapore to Hong Kong

As part of the organisational changes announced last year, Maersk Line has shifted its Asia head office to Hong Kong from Singapore, reducing the number of regional offices to seven from eight.

 
 
Maritime Security Maritime Standards Naval Architecture Navigation Offshore Oil Pod Propulsion Salvage Ship Electronics Shipbuilding / Vessel Construction Winch
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.0747 sec (13 req/sec)