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

Marine Propulsion

MHI's Entity to Oversee Material Handling Equipment, Engine and Turbocharger Businesses

Today Mitsubishi Heavy Industries, Ltd. (MHI) decided in principle to launch a new wholly owned entity to integrally oversee its current businesses in material

VPS Raises Concerns Over Revised Rules for Fuels

Veritas Petroleum Services (VPS) expressed reservations about some of the proposed revisions to the international ISO 8217 specifications of marine fuels. Areas

China to Enforce Low Sulphur ECA in Yangtze River Delta

Vessels calling ports in China’s Yangtze River Delta, including Shanghai, will be required to burn low sulphur fuel while at berth from April 1 this year.   China’s

Offshore

Topaz Responder Saves Refugee Migrants

Topaz Energy and Marine has emerged as an unlikely player in the effort to save refugee migrants risking their lives on the sea crossing from Turkey to Greece’s islands in order to reach Europe.

Corima Acquires Damen ASD 2810 Tug

On 20 January 2016, Corima, part of the Italy-based Gesmar Group, held an official handover ceremony for a Damen ASD 2810 tug. The festivities were attended by

HHI to Localise Main Equipment for Offshore Plants

Hyundai Heavy Industries and Doosan Heavy Industries Collaborate in Localizing Main Equipment for Offshore Plants   Seoul, South Korea – February 4 – Hyundai Heavy Industries (HHI),

Navigation

New Autonomous Control System Launched

Sea Machines Robotics of Cambridge, Mass. announced the release of its Autonomous Control System (ACS), an advanced vessel control system which converts manually

Videotel, Safebridge JV for Onboard ECDIS Certification

Videotel, a provider of e-Learning maritime training solutions and a company of KVH Industries, has joined forces with online maritime training business Safebridge GmbH,

DNV GL, RS Ink Cooperation Deal

DNV GL’s Maritime CEO Knut Ørbeck-Nilssen recently met with Konstantin Palnikov, Director General of the Russian Maritime Register of Shipping (RS), at the RS head office in St.

Marine Power

Cyprus Shipping 'Navigates' the Country to Recovery

Cyprus shipping sector has evolved in the recent years as one of the leading sectors of the economy and “navigates” Cyprus to economic recovery, President of the

Indian Navy Shows Off Strength

India’s naval might was on full display off the coast of Visakhapatnam today (Saturday) as President Pranab Mukherjee reviewed the naval fleet.   Mukherjee,

VPS Raises Concerns Over Revised Rules for Fuels

Veritas Petroleum Services (VPS) expressed reservations about some of the proposed revisions to the international ISO 8217 specifications of marine fuels. Areas

Naval Architecture

VT Halter Delivers ATB Tug to Bouchard

VT Halter Marine, Inc. announced the delivery of the M/V Morton S. Bouchard Jr., the first of the two 6,000 horsepower Twin Screw Articulated Tug Barge (ATB) tugs to Bouchard Transportation Co.

Seafarers help Sought to Improve Onboard Design

The Nautical Institute and CIRM (the principal international association for marine electronics companies) today launched a joint initiative to improve the usability

Campaign for Webb at $28 Mln and Counting

Webb Institute’s Campaign Cabinet, led by President Keith Michel ’73 and Campaign Chair Joseph Cuneo ’57 announced that $28 million (70 percent) of the $40 million

 
 
Maritime Contracts Maritime Security Naval Architecture Navigation Pipelines Salvage Ship Electronics Ship Simulators Shipbuilding / Vessel Construction Sonar
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: 0.0885 sec (11 req/sec)