Mampaey Dynamic Oval Towing (DOT®) System

Dynamic Oval Towing System by: P.P.A. Snijders MSc. B.Eng. DOT ® is a registered trademark of Mampaey Offshore Industries B.V. The DOT system is protected by patents.

Agenda: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Mampaey Offshore Industries B.V. ,[object Object],[object Object],[object Object],[object Object],Early Mampaey Towing Hook

Quick Release Disk Type Towing Hook ,[object Object],[object Object]

Radial support ,[object Object],[object Object],[object Object],[object Object]

Mampaey DOT ® System 360° all around towing platform

A Tug equipped with a DOT ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Safety ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Stability increases Safety ,[object Object],[object Object],[object Object],[object Object],[object Object]

Stability Fixed Towing Point ,[object Object],[object Object],[object Object],[object Object],[object Object],Reasonable risk of capsizing due to towline forces is unlikely!

Stability with 360° towing Likeliness of capsizing due to towline forces is unlikely! ,[object Object],[object Object],[object Object],[object Object],[object Object]

Efficiency ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Hydrodynamic Forces Since the tug can not capsize anymore…. ,[object Object],[object Object],[object Object],[object Object],[object Object]

Full Flexibility ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Conversion to a DOT-tug ,[object Object],[object Object],[object Object],[object Object],[object Object]

Remember, a tug equipped with a DOT Can do anything a conventional tug can! ,[object Object],[object Object],[object Object],[object Object],[object Object]

And much more, like dynamic breaking and steering from the sides ,[object Object],[object Object],[object Object],[object Object],[object Object]

and dynamic escorting over the bow ,[object Object],[object Object],[object Object],[object Object],[object Object]

Full Controllability ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Full Controllability ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

When towline forces are not aligned Tug will rotate…. ,[object Object],[object Object],[object Object],[object Object],[object Object]

When towline forces are not aligned until the forces are aligned Tug will rotate…. ,[object Object],[object Object],[object Object],[object Object],[object Object]

Controlling direction of tug Option 1: Conventional “Solving” Solution; Engine Power ,[object Object],[object Object],[object Object],[object Object],[object Object],limited to a certain speed and propulsion power!

Controlling direction of tug Option 2: “Dissolving” the Problem; Aligning Towline Force ,[object Object],[object Object],[object Object],[object Object],[object Object],In control without engine power at any speed!

Controllability when: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

That’s why current tugs have two towing installations: 1 2 ,[object Object],[object Object],[object Object],[object Object],[object Object]

The changing of the hull forces How to align the towline with the forces acting upon the hull for all directions into one towing system? Only an OVAL can do this! ,[object Object],[object Object],[object Object],[object Object],[object Object]

An oval with moving carriages ,[object Object],[object Object],[object Object],[object Object],[object Object],is always matching the towline with the hydrodynamic forces!

That’s why an Oval ,[object Object],[object Object],[object Object],[object Object]

DOT Rail system ,[object Object],[object Object],[object Object]

Rail system ,[object Object],[object Object],[object Object],[object Object]

Development ,[object Object],[object Object]

Testing ,[object Object],[object Object]

First DOT15-system Sold 8,5 tons April 2008 Bollard Pull: Delivery: 2 x 300 bhp Scania Engines 13 m x 5,40 m x 2,80 m Dimensions: Macduff Ship Design Designer: Peterhead Port Authority Owner:

How can we facilitate the integration? ,[object Object],[object Object],[object Object],[object Object]

Awards ,[object Object],[object Object],[object Object],[object Object],[object Object]

Conclusion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Mampaey Dynamic Oval Towing (DOT®) System

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Mampaey Dynamic Oval Towing (DOT®) System