General information
The primary purpose of Tugs is the towing or escorting of other ships. Other tasks are salvage, anchor handling or fire fighting. To fulfil its tasks, the tug should be capable of generating large towing or pushing forces and should be highly manoeuvrable. A large number of modern tugs is equipped with highly loaded azimuthing thrusters or Voith Schneider Vertical propellers in order to be able to generate the thrust required for the towing or escorting.
The primary purpose of Tugs is the towing or escorting of other ships. Other tasks are salvage, anchor handling or fire fighting. To fulfil its tasks, the tug should be capable of generating large towing or pushing forces and should be highly manoeuvrable. A large number of modern tugs is equipped with highly loaded azimuthing thrusters or Voith Schneider Vertical propellers in order to be able to generate the thrust required for the towing or escorting.
Services & Activities
MARIN is involved in the development of the hull form optimisation , the speed/power performance and studies cavitation and noise & vibration.
The seakeeping performance, the rollstability, the motions and the loads & responses are investigated in our Seakeeping and Manoeuvrin Basin(SMB). Here we also verifie the manoeuvring performance and investigates the escorting capability of tugs and the towing stability of towed subjects. Captive tests can be conducted to obtain mathematical manoeuvring models for simulation or training purposes.
The Nautical Centre MSCN offers training of the crew and the simulation of special situations.
The Trials & Monitoring Department is involved in full-scale measurements of ship performance, cavitation observation, noise & vibration and loads & responses measurements.
MARIN is involved in the development of the hull form optimisation , the speed/power performance and studies cavitation and noise & vibration.
The seakeeping performance, the rollstability, the motions and the loads & responses are investigated in our Seakeeping and Manoeuvrin Basin(SMB). Here we also verifie the manoeuvring performance and investigates the escorting capability of tugs and the towing stability of towed subjects. Captive tests can be conducted to obtain mathematical manoeuvring models for simulation or training purposes.
The Nautical Centre MSCN offers training of the crew and the simulation of special situations.
The Trials & Monitoring Department is involved in full-scale measurements of ship performance, cavitation observation, noise & vibration and loads & responses measurements.
Facilities & Tools
Tugs are tested in the following MARIN facilities:
Tugs are tested in the following MARIN facilities:
- Deep Water Tank: resistance and propulsion tests, PMM tests
- Depressurised Towing Tank: cavitation, noise and erosion observation
- Seakeeping and Manoeuvring Basin: seakeeping and manoeuvring behaviour and escorting and towing tests
Tug behaviour is simulated with the following tools: (SHIPMO and FREDYN for MARIN internal use only)
RAPID: Calculation of wave resistance and potential flow
PARNASSOS: Calculation of the viscous flow around ships hulls
DESP: Prediction of propulsive performance
DPCAP: Analysis of thruster capacity in dynamic positioning
SHIPMO: Motions and seakeeping of ships
FREDYN: Seakeeping and Manoeuvring behaviour of ships in wind and waves
PARNASSOS: Calculation of the viscous flow around ships hulls
DESP: Prediction of propulsive performance
DPCAP: Analysis of thruster capacity in dynamic positioning
SHIPMO: Motions and seakeeping of ships
FREDYN: Seakeeping and Manoeuvring behaviour of ships in wind and waves
Software Sales
Some software tools are available for commercial use outside MARIN. A complete overview of these software tools for sale can be found under Software Sales.
Some software tools are available for commercial use outside MARIN. A complete overview of these software tools for sale can be found under Software Sales.
Experience
The list below gives a review of Tug model tests carried out at MARIN:
The list below gives a review of Tug model tests carried out at MARIN:
- Standard tug (Damen), 2006
- Computer prediction program for escorting with tugs (Schottel), 2005-2006
- Computer prediction program for tugs (Damen), 2003
- Full scale trials on Caroussel tug (Multraship/IMC), 2003
- Standard tug (Damen), 2002
- Escort tug (Wijsmuller Engineering), 2001
- Stern drive tug (IHC Delta Shipyard), 2001
- Anchor Handling tug (Volkswerft Stralsund), 1998
- Twin-screw stern drive tug (Burness Corlett), 1998
- Rotor tractor tug (Padmos Machinefabriek), 1997
- Escort tugs (Wijsmuller Engineering) 1997
- Safetug JIP, 2005-2006
Most recent tug papers presented by MARIN:
(complete overview of papers can be found under Publications)
(complete overview of papers can be found under Publications)
Damen ATD Tug 2412 Twin Fin Concept
Boudesteijn; Mathot; de Jong Quadvlieg, ITS, 2010
Research into the Effects of Motion Simulation on Tugboat Captain Training and Performance in Bridge Simulators
D. ten Hove and M. Roza, HPAS2010: Human Performance At Sea, 2010
Ship Assist in Fully Exposed Conditions - Joint Industry Project SAFETUG
Johan H de Jong, Tugnology, 2007
Development of a calculation program for escort forces of stern drive tug boats
Quadvlieg, F.H.H.A. and Kaul, S., ITS2006 The 19th International Tug & Salvage Convention and Exhibition, 2006
The Behaviour of Tugs in Waves Assisting LNG Carriers During Berthing Along Offshore LNG Terminals
Bas Buchner, Pieter Dierx and Olaf Waals, OMAE Conference, Halkidiki, 2005
Boudesteijn; Mathot; de Jong Quadvlieg, ITS, 2010
Research into the Effects of Motion Simulation on Tugboat Captain Training and Performance in Bridge Simulators
D. ten Hove and M. Roza, HPAS2010: Human Performance At Sea, 2010
Ship Assist in Fully Exposed Conditions - Joint Industry Project SAFETUG
Johan H de Jong, Tugnology, 2007
Development of a calculation program for escort forces of stern drive tug boats
Quadvlieg, F.H.H.A. and Kaul, S., ITS2006 The 19th International Tug & Salvage Convention and Exhibition, 2006
The Behaviour of Tugs in Waves Assisting LNG Carriers During Berthing Along Offshore LNG Terminals
Bas Buchner, Pieter Dierx and Olaf Waals, OMAE Conference, Halkidiki, 2005
Most recent tug articles written for MARIN Report:
(complete overview of articles can be found under Publications)
(complete overview of articles can be found under Publications)
Extensive bollard pull & escort trials
Henk van den Boom, MARIN Report, 2011
World-class deepwater Anchor Handling Simulator
MARIN Report, 2011
Safetug: a unique €3 million JIP concludes
MARIN Report, 2010
Bridge simulator training for the Munin FPSO
Dimitri van Heel, MARIN report, 2010
New initiatives probe thruster interaction effects
Hans Cozijn, MARIN report, 2010
Henk van den Boom, MARIN Report, 2011
World-class deepwater Anchor Handling Simulator
MARIN Report, 2011
Safetug: a unique €3 million JIP concludes
MARIN Report, 2010
Bridge simulator training for the Munin FPSO
Dimitri van Heel, MARIN report, 2010
New initiatives probe thruster interaction effects
Hans Cozijn, MARIN report, 2010
Contact
For more information on how MARIN can help your organisation with any hydrodynamic questions on Tugs, please contact Merchant Vessel & Work Boat team at MerchantVessel@marin.nl
For more information on how MARIN can help your organisation with any hydrodynamic questions on Tugs, please contact Merchant Vessel & Work Boat team at MerchantVessel@marin.nl