EP2316721A1 - Verfahren zum Stabilisieren eines Fahrzeugs gegen ein unverändertes Objekt - Google Patents

Verfahren zum Stabilisieren eines Fahrzeugs gegen ein unverändertes Objekt Download PDF

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Publication number
EP2316721A1
EP2316721A1 EP10189291A EP10189291A EP2316721A1 EP 2316721 A1 EP2316721 A1 EP 2316721A1 EP 10189291 A EP10189291 A EP 10189291A EP 10189291 A EP10189291 A EP 10189291A EP 2316721 A1 EP2316721 A1 EP 2316721A1
Authority
EP
European Patent Office
Prior art keywords
engagement
vessel
stationary object
buffer body
engagement arm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10189291A
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English (en)
French (fr)
Other versions
EP2316721B1 (de
Inventor
Reinout Klaar Norfolc Jaap Prins
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Z Knowledge BV
Original Assignee
Presign Holding BV
P&R Systems
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Filing date
Publication date
Application filed by Presign Holding BV, P&R Systems filed Critical Presign Holding BV
Publication of EP2316721A1 publication Critical patent/EP2316721A1/de
Application granted granted Critical
Publication of EP2316721B1 publication Critical patent/EP2316721B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/14—Arrangement of ship-based loading or unloading equipment for cargo or passengers of ramps, gangways or outboard ladders ; Pilot lifts
    • B63B27/143—Ramps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/14—Arrangement of ship-based loading or unloading equipment for cargo or passengers of ramps, gangways or outboard ladders ; Pilot lifts
    • B63B2027/141—Arrangement of ship-based loading or unloading equipment for cargo or passengers of ramps, gangways or outboard ladders ; Pilot lifts telescopically extendable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/30—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures

Definitions

  • the invention relates to a method for stabilizing a floating vessel against a stationary object, such as a mast of an offshore wind turbine.
  • the stationary object is sited in open water, for example, the vessel being stabilized against it for the transfer of persons or goods.
  • a windmill park at sea persons and goods are repeatedly transferred to offshore wind turbines under construction.
  • installed wind turbines are regularly visited for maintenance activities.
  • Other stationary objects at sea are also frequently visited with vessels for transfer of crew or equipment.
  • EP 1695902 discloses a method for stabilizing a floating vessel against an offshore construction.
  • the vessel has a motor for the propulsion of the vessel. With the motor, a fender on the bow of the vessel is pushed firmly against the offshore construction. The force applied by the motor and the friction between the fender and the offshore construction prevent the fender from sliding down along the offshore construction. As long as the fender is stabilized against the offshore construction, crew or equipment can be transferred between the vessel and the offshore construction.
  • the significant wave height Hs is a term which is commonly known within shipping.
  • the significant wave height is the average height of the highest 1/3 of the waves.
  • the significant wave height can be determined visually or by measurements. If the significant wave height is less than 1.5 metres, waves will therefore still come past which are higher. It is impossible to predict when precisely this will happen and what the height of the wave will then be. In principle, each successive wave can create a hazardous situation in connection with the transfer of persons or goods. If, as a result of the wave motion, the propeller of the motor emerges above the water surface, even if only briefly, then the friction between the fender and the offshore construction is lost immediately.
  • the bow of the vessel breaks free from the offshore construction and can move up or down depending on the wave situation.
  • the random wind and current conditions which are unpredictable or scarcely predictable, also play a part in this.
  • the unforeseen wave patterns and other conditions offshore adversely affect safety in the transfer of persons or goods.
  • the motor will misfire or cut, for example as a result of contaminated fuel, mechanical or electrical defects, whereby a dangerous situation directly arises. It must here be borne in mind that the transfer of persons or goods to an offshore wind turbine can last, for example, 20 minutes or more.
  • An object of the invention is to provide an improved method for stabilizing a floating vessel against a stationary object.
  • This object is achieved according to the invention by a method for stabilizing a floating vessel against a stationary object, wherein the vessel is provided with:
  • the buffer body of the floating vessel is first pushed against the stationary object, for example a mast of an offshore wind turbine, by means of the motor.
  • the buffer body is then substantially stabilized against the stationary object by continued pushing by the motor of the buffer body against the stationary object.
  • the stabilization of the buffer body against the stationary object takes place by virtue of friction between the buffer body and the stationary object.
  • the buffer body is in this case unable or scarcely able to slide downwards or upwards along the stationary object.
  • the buffer body therefore forms a friction body - in this patent application, the term buffer body can be replaced by the term friction body. While the buffer body remains stabilized against the stationary object by the pushing, the engagement member of the engagement arm next engages on the stationary object.
  • the vessel and the stationary object are then connected to each other by the engagement arm.
  • the engagement arm pulls the vessel more firmly against the stationary object, or the vessel is pushed away from the stationary object.
  • the engagement arm is subjected to tensile load in the longitudinal direction thereof.
  • the buffer body is hereupon clamped firmly against the stationary object.
  • the buffer body and the tensile-loaded engagement arm provide a stable connection between the vessel and the stationary object. Once this stable connection is established, the vessel no longer needs to be stabilized by the pushing with the motor. If the motor force, as a result of an unforeseen high wave, suddenly decreases or even totally falls away, the stable connection between the vessel and the stationary object remains guaranteed. According to the invention, crew and equipment can hence be transferred in a safe and guaranteed manner even if an unforeseen high wave comes past.
  • a vessel having a gangway is known. One part thereof is pivotally connected about a horizontal axis to a platform at the upper end of a column which is mounted on the deck of the vessel rotatably about a vertical axis. A second part of the gangway may be retracted or extended with respect to the first part of the gangway. The second part has a crossover platform and a coupling device in order to establish a connection to a vertical bar of a pile in open water.
  • a buffer body which is pushed against the pile by means of the propulsion motor of the vessel is not known, however. Nor is the buffer body substantially stabilized against the vertical bar of the pile. And nor, therefore, can the engagement of the coupling jaws on the vertical bar take place while the buffer body and the vertical bar are mutually stabilized by the pushing.
  • the coupling of a vessel to a stationary object by means of a gangway fastened to the vessel is known.
  • the gangway comprises a first gangway part and a second gangway part which telescopes into said first gangway part.
  • a bumper strip on the side edge of the gangway is placed against a support of the stationary object.
  • the bumper strip is not, however, substantially stabilized against the support, nor is the engagement of clamps on a coupling pipe of the stationary object conducted while the bumper strip and the coupling pipe are mutually stabilized by the pushing of the vessel by means of the propulsion motor.
  • a first connection between the vessel and the stationary object by the substantial stabilization of the buffer body against the stationary object by the pushing of the buffer body of the vessel against the stationary object by the propulsion of the vessel by means of the motor.
  • the stabilization of the buffer body against the stationary object is realized by means of friction between the buffer body and the stationary object, so that the buffer body is unable or scarcely able to slide downwards or upwards along the stationary object.
  • a second connection between the vessel and the stationary object is formed by the engagement of the engagement member on the stationary object. The second connection guarantees that the vessel and the stationary object are mutually coupled.
  • the stationary object is provided with at least two substantially vertical bumper bars, wherein the engagement member of the first engagement arm engages on a first bumper bar, and wherein the vessel is provided with at least a second engagement arm, which at one end is provided with an engagement member for engaging on a second bumper bar, and wherein both engagement members engage on the bumper bars while the buffer body and the stationary object are mutually stabilized by the pushing, and wherein both engagement arms are subjected to tensile load while the engagement members thereof engage on the bumper bars.
  • the bumper bars of the stationary object are placed parallel to each other and at a distance apart. If the vessel is connected to both bumper bars by the engagement arms, the vessel can be prevented from pivoting in a horizontal plane about the stationary object. This increases safety in the transfer of persons or goods.
  • the or each engagement arm is displaceable between an engagement position, in which the engagement member thereof engages on the stationary object, and a release position, in which the engagement member thereof releases the stationary object, and wherein the or each engagement arm is in the release position prior to the pushing, and wherein the or each engagement arm is displaced from the release position to the engagement position after the buffer body has been stabilized against the stationary object by the pushing.
  • the or each engagement arm is rotatably connected to the vessel about a substantially vertical rotational axis.
  • the or each engagement arm is first pivoted against the stationary object, for example against the bumper bars, so that the engagement member can engage on the stationary object. Then tensile load is applied to the or each engagement arm. This is favourable, for example, if the engagement arms are fitted to a pointed bow of the vessel.
  • the or each engagement arm is fitted to a trolley which is displaceable in the transverse direction of the vessel.
  • the trolley with engagement arm can in this case slide from the outside inwards against the stationary object, for example against the bumper bars, after which the engagement member engages on the stationary object. Then the or each engagement arm is subjected to tensile load.
  • This can be used, for example, where there are one or more engagement arms fitted to a flat bow or stern of the vessel.
  • the or each engagement arm comprises an elongated supporting portion and an elongated engagement portion, wherein the supporting portion is connected to the vessel, and wherein the engagement portion is displaceable in the longitudinal direction with respect to the supporting portion, and wherein the engagement portion, at the end facing away from the supporting portion, is provided with the engagement member.
  • the engagement portion forms a boom which is fitted to the supporting portion such that it can be moved to and fro.
  • the engagement portion is in a retracted position with respect to the supporting portion.
  • the engagement member of the engagement portion is movable from the hull of the vessel into an extended position, in which the engagement member can engage on the stationary object while the buffer body rests against the stationary object.
  • the supporting portion is tubular, for example, the engagement portion being accommodated telescopically in the tubular supporting portion.
  • the or each engagement arm is provided with a drive member for driving the engagement portion with respect to the supporting portion, and wherein the or each engagement arm is subjected to tensile load by the drive member of the said engagement arm.
  • the drive member comprises, for example, a hydraulic cylinder, which is fitted to the engagement portion. The hydraulic cylinder can move the engagement portion to and fro with respect to the supporting portion.
  • the drive member of the or each engagement arm enables a displacement of the engagement portion in the longitudinal direction with respect to the supporting portion as the engagement arm is subjected to tensile load.
  • the buffer body and the tensile-loaded engagement arm or engagement arms provide a stable connection between the vessel and the stationary object.
  • the buffer body is fixedly fastened to the hull of the vessel. If the stable connection has been established, the vessel can still rotate about a transverse axis determined by the buffer body.
  • the or each engagement arm is located at a distance above the said transverse axis. If the vessel, for example as the result of a wave, rotates downwards about the said transverse axis, the engagement portion moves outwards with respect to the supporting portion.
  • the length of the engagement arm increases. The fact that the engagement arm is here kept at a substantially constant pressure and remains under tensile load means that the stable connection can be guaranteed.
  • the length of the displacement of the engagement portion with respect to the supporting portion is less than the length of the engagement arm, for instance no greater than about 25% of the length of the engagement arm.
  • the length of the said displacement is, for example, less than 70 cm, in particular less than about 50 cm.
  • Tensile load can be applied to the engagement arm by the application of tensile load from the vessel to the engagement arm. It is also possible that the engagement arm is subjected to tensile load by a thrust from the vessel onto the stationary object. The thrust is applied to the stationary object, for example, by the buffer body.
  • the buffer body is displaceable with respect to the hull of the vessel, wherein the buffer body is provided with a drive member for driving the buffer body with respect to the hull of the vessel, and wherein the or each engagement arm is subjected to tensile load by the drive member of the buffer body.
  • the drive member of the buffer body comprises, for example, a hydraulic cylinder.
  • the hydraulic cylinder is connected to the vessel. The hydraulic cylinder can move the buffer body to and fro with respect to the hull of the vessel and can abut the buffer body under pressure against the stationary object.
  • the drive member of the buffer body enables a displacement of the buffer body with respect to the hull as the or each engagement arm is subjected to tensile load.
  • the buffer body and the tensile-loaded engagement arm or engagement arms provide a stable connection between the vessel and the stationary object.
  • the engagement arm or engagement arms possess a fixed length. If the stable connection has been established, the vessel can still rotate about a transverse axis which is determined by the engagement member of the engagement arm connected to the stationary object.
  • the buffer body is placed at a height below the engagement arm or engagement arms, i.e. below the said transverse axis.
  • the buffer portion moves outwards with respect to the hull of the vessel.
  • the length of the displacement of the buffer body with respect to the hull of the vessel is less than the length of the engagement arm, for instance no greater than about 25% of the length of the engagement arm.
  • the length of the said displacement is, for example, less than 70 cm, in particular less than about 50 cm.
  • the drive member of the or each engagement arm and/or the drive member of the buffer body each comprises a hydraulic cylinder and a collecting container, wherein the collecting container is provided with a movable partition wall, wherein the partition wall divides the collecting container into two chambers, wherein the first chamber is closed off and comprises a compressible fluid, and wherein the second chamber comprises hydraulic fluid and is connected to the hydraulic cylinder.
  • the movable partition wall such as a bellows-shaped partition wall, divides the interior of the collecting container into two chambers.
  • the second chamber is filled with hydraulic fluid and is connected to the hydraulic cylinder.
  • the or each engagement arm is hence kept at a substantially constant pressure as tensile load is applied to the said engagement arm, while a displacement of the engagement portion with respect to the supporting portion remains possible by the displacement of the movable partition wall in the collecting container.
  • the pushing of the buffer body of the vessel against the stationary object by means of the motor can substantially be halted.
  • the buffer body remains stabilized against the stationary object by the buffer body and the tensile-loaded engagement arm.
  • the motor can even be switched off, which saves on fuel.
  • the invention additionally relates to a vessel, comprising:
  • the engagement member of the first engagement arm is designed to engage on a first, substantially vertical bumper bar of the stationary object
  • the vessel is provided with at least a second engagement arm, which at one end is provided with an engagement member for engaging on a second, substantially vertical bumper bar of the stationary object
  • both engagement members are designed to engage on the bumper bars while the buffer body and the stationary object are mutually stabilized by the pushing
  • the actuating device is designed to apply tensile load to both engagement arms when they engage on the bumper bars.
  • each engagement arm is displaceable between an engagement position, in which the stationary object is engageable by the engagement member, and a release position, in which the stationary object has been released by the engagement member.
  • the engagement arm or engagement arms are adjustable they can adapt to the position of the vessel with respect to the stationary object.
  • the or each engagement arm comprises an elongated supporting portion and an elongated engagement portion, wherein the supporting portion is connected to the vessel, and wherein the engagement portion is displaceable in the longitudinal direction with respect to the supporting portion, and wherein the engagement portion, at the end facing away from the supporting portion, is provided with the engagement member.
  • the length of the or each engagement arm is hereby variable.
  • the actuating device comprises one or more drive members, wherein the or each engagement arm is provided with the drive member or a respective drive member, wherein the or each drive member is designed to drive the engagement portion with respect to the supporting portion of the engagement arm, and wherein the drive member of the or each engagement arm is designed to apply tensile load to the said engagement arm when this engages on the stationary object.
  • the drive member of the or each engagement arm is designed to enable a displacement of the engagement portion in the longitudinal direction with respect to the supporting portion as the engagement arm is subjected to tensile load. If a buffer body is fixedly fastened to the hull, the vessel can rotate about that buffer body, whereupon the engagement arm becomes to some extent longer or shorter, while the said engagement arm is kept at pressure.
  • the actuating device can be designed to apply tensile load to the engagement arm by the application of a tensile load from the vessel to the engagement arm. It is also possible that the actuating device is designed to apply tensile load to the engagement arm by the application of a thrust from the vessel to the stationary object. For example, the actuating device is designed to apply tensile load to the engagement arm by the application of a thrust to the stationary object by the buffer body.
  • the buffer body is displaceable with respect to the hull of the vessel, wherein the actuating device is provided with a drive member for driving the buffer body with respect to the hull of the vessel, and wherein the drive member of the buffer body is designed to apply a tensile load to the or each engagement arm.
  • the drive member for driving the buffer body is designed to enable a displacement of the buffer body with respect to the hull as the or each engagement arm is subjected to tensile load.
  • the drive member of the or each engagement arm and/or the drive member of the buffer body each comprises at least one hydraulic cylinder and a collecting container, wherein the collecting container is provided with a movable partition wall, wherein the partition wall divides the collecting container into two chambers, wherein the first chamber is closed off and comprises a compressible fluid, and wherein the second chamber comprises hydraulic fluid and is connected to the hydraulic cylinder.
  • the invention likewise relates to a system comprising a vessel as described above and a stationary object, for example the mast of an offshore wind turbine or another offshore construction.
  • the stationary object can be provided with two substantially vertical bumper bars, which are placed substantially parallel to each other and at a distance apart.
  • the engagement members of the engagement arms can engage on the bumper bars.
  • a stationary object 3 is installed in a sea 2.
  • the stationary object 3 is an offshore wind turbine, which is provided with a mast.
  • To the mast of the wind turbine 3 are fitted two substantially vertical bumper bars 5, 6. Between the bumper bars 5, 6 there is a ladder 7, by which installation or maintenance crew can climb up and down the wind turbine 3.
  • the crew is brought to the offshore wind turbine 3 with a floating vessel 1 (a so-called "crew transport vessel”).
  • the floating vessel 1 comprises a motor 14 for the propulsion of the vessel 1.
  • the motor 14 drives a propeller.
  • the motor 14 can however drive some other propulsion member, such as a water jet, etc. (not shown).
  • the motor 14 has, for example, a power to deliver 4-8 tonnes of thrust.
  • the vessel 1 has a hull 9, which is provided with a bow 10, a middle body and a stern 11.
  • a supporting frame 17 is fixed (see Figures 1a-1d , 2 ).
  • the supporting frame 17 is located by the bow 10.
  • Fastened to the supporting frame 17 is a buffer body 16, which protrudes from the hull 9.
  • the buffer body 16 can otherwise also be fitted to the outer side of the hull 9 (not shown).
  • the supporting frame 17 comprises a landing 18, on which a person can stand.
  • two engagement arms 20, 21 are rotatably connected to the supporting frame 17 about a common vertical rotational axis 26.
  • the engagement arms 20, 21 are also pivotably connected to the supporting frame 17 about two respective horizontal axes.
  • Each engagement arm 20, 21 comprises a tubular supporting portion 22 and an engagement portion 23, which fits telescopically into the supporting portion 22.
  • the supporting portion 22 and the engagement portion 23 are each elongated. At the free end of the engagement portion 23 there is placed an engagement member 24.
  • the engagement members 24 of the engagement arms 20, 21 are designed to engage on the bumper bars 5, 6 of the offshore wind turbine 3.
  • the engagement members 24 are each hook-shaped.
  • Each engagement member 24 has a hook portion, which protrudes transversely from the engagement portion 23.
  • the hook portion can grip at least partially behind one of the bumper bars 5, 6.
  • the inner surface of the hook portion is provided with a resilient lining (not shown).
  • Each engagement arm 20, 21 is provided with a drive member for driving the engagement portion 23 with respect to the supporting portion 22.
  • the drive member of each engagement arm 20, 21 comprises a hydraulic cylinder (not shown).
  • the hydraulic cylinder is placed inside the tubular supporting portion 22.
  • the engagement portion 23 is connected to the supporting portion 22 by means of the hydraulic cylinder.
  • the hydraulic cylinder can move the engagement portion 23 to and fro with respect to the supporting portion 22. If the engagement arms 20, 21 with the engagement members 24 are connected to the bumper bars 5, 6 of the offshore wind turbine 3, tensile load can be applied to the engagement arms 20, 21 by the application of a tensile force into the hydraulic cylinders of the engagement arms 20, 21.
  • the vessel 1 is stabilized against the bumper bars 5, 6 of the offshore wind turbine 3 as follows. First, by means of the motor 14, the buffer body 16 of the vessel 1 is pushed against the bumper bars 5, 6. The thrust of the motor 14 continues to push the buffer body 16, whereby the buffer body 16 is stabilized against the bumper bars 5, 6. The bumper body 16 is in this case unable or scarcely able to slide upwards or downwards along the bumper bars 5, 6.
  • the engagement arms 20, 21 are here in a release position (see Figures 1a and 1b ).
  • the engagement arms 20, 21 are subjected to tensile load.
  • the engagement arms 20, 21 hereby draw the bumper body 14 of the vessel 1 more firmly against the bumper bars 5, 6.
  • the buffer body 14 and the bumper bars 5, 6 are hereby clamped stably together.
  • the buffer body 14 and the tensile-loaded engagement arms 20, 21 then provide a stable connection between the vessel 1 and the offshore wind turbine 3.
  • the thrust of the motor 14 is no longer necessary to hold the vessel 1 stably against the offshore wind turbine 3. Crew can hence safely cross from the landing 18 to the ladder 7 and back.
  • the drive members in the engagement arms 20, 21 are designed to enable a telescopic displacement of the engagement portion 23 with respect to the supporting portion 22, while at the same time tensile load continues to be applied to the engagement arms 20, 21.
  • the drive member of each engagement arm 20, 21 comprises an accumulator (not shown).
  • the accumulator is provided with a collecting container, in which a movable partition wall is accommodated.
  • the partition wall divides the interior of the collecting container into two chambers, the volume of which can vary through the displacement of the partition wall.
  • the first chamber is closed off by the movable partition wall, while the second chamber is connected to the hydraulic cylinder of the associated engagement arm 20, 21.
  • a compressible fluid under pressure for example air or another gas.
  • the second chamber is filled with hydraulic fluid, which can flow to and from the hydraulic cylinder.
  • the buffer body 16 is fixedly fastened to the bow 10 of the vessel 1.
  • the vessel 1 can still rotate about a transverse axis 27 which is determined by the buffer body 16.
  • the engagement arms 20, 21 are situated above the transverse axis 27. If the vessel 1 rotates downwards about the transverse axis 27, for example as the result of a wave, the engagement portion 23 shifts outwards with respect to the supporting portion 22 of the engagement arms 20, 21.
  • the length of the displacement of the engagement portion with respect to the supporting portion is, for example, no greater than about 30 cm.
  • the engagement arms 20, 21 are subjected to tensile load by the application of a thrust from the vessel 1 to the bumper bars 5, 6 of the offshore wind turbine 3.
  • the supporting frame with engagement arms which is shown in Figure 2 can be replaced, for example, by the embodiment of the supporting frame with engagement arms which is shown in Figure 4 .
  • the same or similar components are here denoted with the same reference numerals.
  • the supporting frame 17 is guided displaceably on a base frame 32 placed on the deck of the vessel. Since the buffer body 16 is fastened to the supporting frame 17, the buffer body 16 is displaceable with respect to the hull 9 of the vessel 1.
  • the buffer body 16 and the engagement member 24 are mutually displaceable.
  • One or more hydraulic cylinders 30, which can move the buffer body 16 to and fro with respect to the hull 9, are connected between the supporting frame 17 and the base frame 32. By means of the hydraulic cylinders 30, a thrust can be applied by the buffer body 16. The buffer body 16 can then rest under pressure against the bumper bars 5, 6.
  • the engagement arms 20, 21 are of rigid construction, i.e. the engagement arms 20, 21 possess a fixed length.
  • the vessel 1 can still rotate about a transverse axis 28 which is determined by the rigid engagement arms 20, 21 (see Figure 5 ).
  • the buffer body 16 is situated below the transverse axis 28. If the vessel 1 rotates upwards about the transverse axis 27, for example as the result of a wave, the buffer body 16 shifts outwards with respect to the hull 9.
  • the length of the displacement of the buffer body 16 with respect to the hull 9 is, for example, no greater than about 30 cm.
  • tensile load continues to be applied to the engagement arms 20, 21 as the buffer body 14 is moved inwards and outwards by the use of an accumulator pertaining to each hydraulic cylinder 30.
  • FIGs 6a-6d a further embodiment of the vessel to be stabilized against a stationary object is represented.
  • the same or similar components are here denoted with the same reference numerals.
  • the vessel 1 according to Figures 6a-6d has a flat bow 10.
  • the engagement arms 20, 21 are each fastened to a trolley, which is fitted on the supporting frame 17 such that it is displaceable in the transverse direction of the vessel 1.
  • Figures 6a, b show the release position, in which the engagement arms 20, 21 have moved apart.
  • the engagement position is represented, in which the engagement members 20, 21 have moved closer together and clamp the bumper bars 5, 6.
  • the construction and working of the vessel is further substantially the same as described above.
  • the buffer body and the engagement arms can be fitted to the stern of the vessel. In that case, the vessel is stabilized against the stationary object stemwards.
  • the engagement arms can engage on the stationary object in another way.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Vibration Dampers (AREA)
EP10189291A 2009-10-30 2010-10-28 Verfahren zum Stabilisieren eines Fahrzeugs gegen ein unverändertes Objekt Not-in-force EP2316721B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2003728A NL2003728C2 (nl) 2009-10-30 2009-10-30 Werkwijze voor het stabiliseren van een drijvend vaartuig tegen een stationair object.

Publications (2)

Publication Number Publication Date
EP2316721A1 true EP2316721A1 (de) 2011-05-04
EP2316721B1 EP2316721B1 (de) 2013-03-20

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EP10189291A Not-in-force EP2316721B1 (de) 2009-10-30 2010-10-28 Verfahren zum Stabilisieren eines Fahrzeugs gegen ein unverändertes Objekt

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EP (1) EP2316721B1 (de)
DK (1) DK2316721T3 (de)
NL (1) NL2003728C2 (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2485556A (en) * 2010-11-18 2012-05-23 Robin Barnaby Mottram Stowell Toothed fender for offshore transfers at sea, eg to/from a wind turbine
WO2012066349A1 (en) * 2010-11-19 2012-05-24 Ronald Stephen Mattey Jaw apparatus for stabilising a floating craft against a stationary structure
GB2490252A (en) * 2011-04-20 2012-10-24 Bmt Nigel Gee Ltd A waterborne vessel with a carriage assembly for docking
NL2006710C2 (nl) * 2011-05-03 2012-11-06 Presign Holding B V Systeem en werkwijze voor het aanmeren van een drijvend vaartuig tegen een stationair object.
WO2013174886A1 (en) 2012-05-22 2013-11-28 Otso Limited Vessel gangway system
GB2510418A (en) * 2013-02-04 2014-08-06 Windcat Workboats Ltd Vessel fender structure with anchor points and draw mechanisms
EP2818396A1 (de) 2013-06-25 2014-12-31 Siemens Aktiengesellschaft Wasserfahrzeug, Andocksystem und Andockstruktur
GB2516487A (en) * 2013-07-04 2015-01-28 Akd Engineering Ltd Marine transfer system
FR3040682A1 (fr) * 2015-09-08 2017-03-10 Savoye Dispositif d'amarrage d'un navire a un poste d'amarrage d'un ponton et ponton correspondant
ES2716003A1 (es) * 2017-12-07 2019-06-07 Esteyco S A P Construccion marina con estructura de embarcadero de hormigon
NL2026010A (en) * 2019-07-12 2021-02-01 Damen 40 B V A system for charging a battery of an electrically driven ship
EP3915866A1 (de) 2020-05-27 2021-12-01 Offshore Windservice A/S System zur stabilisierung eines schiffs gegen ein stationäres objekt
NL2026396B1 (nl) * 2020-09-02 2022-05-04 Owl Heavy Lift B V Een koppelsysteem voor het afmeren en ontmeren van een zeevaartuig.

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US4005672A (en) * 1976-04-15 1977-02-01 Regal Tool & Rubber Co. Inc. Bumper with cushion pivot at bottom
WO2000015489A1 (en) * 1998-09-17 2000-03-23 Ägir Konsult AB Mooring device
WO2002020343A1 (en) 2000-09-06 2002-03-14 P & R Systems A vessel, provided with a gang plank for coupling to an offshore pole structure
WO2005097591A1 (en) 2004-04-09 2005-10-20 Fabricom Oil & Gas B.V. Device and method for coupling a vessel to a stationary object
EP1695902A2 (de) 2005-06-14 2006-08-30 Windcat Workboats Limited Verfahren zum Stabilisieren eines Bootes gegenüber einer stationären Struktur
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Cited By (21)

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GB2485556A (en) * 2010-11-18 2012-05-23 Robin Barnaby Mottram Stowell Toothed fender for offshore transfers at sea, eg to/from a wind turbine
WO2012066349A1 (en) * 2010-11-19 2012-05-24 Ronald Stephen Mattey Jaw apparatus for stabilising a floating craft against a stationary structure
GB2490252A (en) * 2011-04-20 2012-10-24 Bmt Nigel Gee Ltd A waterborne vessel with a carriage assembly for docking
GB2490252B (en) * 2011-04-20 2018-06-27 Bmt Nigel Gee Ltd Waterborne vessel
NL2006710C2 (nl) * 2011-05-03 2012-11-06 Presign Holding B V Systeem en werkwijze voor het aanmeren van een drijvend vaartuig tegen een stationair object.
EP2520485A1 (de) * 2011-05-03 2012-11-07 Presign Holding B.V. System und Verfahren zum Vertäuen eines schwimmenden Fahrzeugs an einem ortsfesten Objekt
WO2013174886A1 (en) 2012-05-22 2013-11-28 Otso Limited Vessel gangway system
GB2510418A (en) * 2013-02-04 2014-08-06 Windcat Workboats Ltd Vessel fender structure with anchor points and draw mechanisms
US9796453B2 (en) 2013-02-04 2017-10-24 Windcat Workboats Limited Mooring structure mounted on a vessel
GB2510418B (en) * 2013-02-04 2018-02-28 Windcat Workboats Ltd Vessel fender structure with anchor points and draw mechanisms
EP2818396A1 (de) 2013-06-25 2014-12-31 Siemens Aktiengesellschaft Wasserfahrzeug, Andocksystem und Andockstruktur
GB2516487A (en) * 2013-07-04 2015-01-28 Akd Engineering Ltd Marine transfer system
EP2829468A3 (de) * 2013-07-04 2015-08-05 AKD Engineering Ltd Marines Übertragungssystem
FR3040682A1 (fr) * 2015-09-08 2017-03-10 Savoye Dispositif d'amarrage d'un navire a un poste d'amarrage d'un ponton et ponton correspondant
US9926046B2 (en) 2015-09-08 2018-03-27 Savoye Device for mooring a water craft to a mooring berth of a pontoon, and corresponding pontoon
ES2716003A1 (es) * 2017-12-07 2019-06-07 Esteyco S A P Construccion marina con estructura de embarcadero de hormigon
WO2019110859A1 (es) * 2017-12-07 2019-06-13 Esteyco S.A.P. Construcción marina con estructura de embarcadero de hormigón
NL2026010A (en) * 2019-07-12 2021-02-01 Damen 40 B V A system for charging a battery of an electrically driven ship
EP3915866A1 (de) 2020-05-27 2021-12-01 Offshore Windservice A/S System zur stabilisierung eines schiffs gegen ein stationäres objekt
US11760447B2 (en) 2020-05-27 2023-09-19 Offshore Windservice A/S System for stabilizing a vessel against a stationary object
NL2026396B1 (nl) * 2020-09-02 2022-05-04 Owl Heavy Lift B V Een koppelsysteem voor het afmeren en ontmeren van een zeevaartuig.

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NL2003728C2 (nl) 2011-05-03
DK2316721T3 (da) 2013-06-17

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