EP0105976A1 - Einpunktverankerungseinrichtung mit starrem Arm - Google Patents

Einpunktverankerungseinrichtung mit starrem Arm Download PDF

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Publication number
EP0105976A1
EP0105976A1 EP82201300A EP82201300A EP0105976A1 EP 0105976 A1 EP0105976 A1 EP 0105976A1 EP 82201300 A EP82201300 A EP 82201300A EP 82201300 A EP82201300 A EP 82201300A EP 0105976 A1 EP0105976 A1 EP 0105976A1
Authority
EP
European Patent Office
Prior art keywords
vessel
rigid arm
arm assembly
tower structure
tension members
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.)
Withdrawn
Application number
EP82201300A
Other languages
English (en)
French (fr)
Inventor
Willem Jan Van Heijst
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.)
Bluewater Terminal Systems NV
Original Assignee
Bluewater Terminal Systems NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bluewater Terminal Systems NV filed Critical Bluewater Terminal Systems NV
Priority to EP82201300A priority Critical patent/EP0105976A1/de
Publication of EP0105976A1 publication Critical patent/EP0105976A1/de
Withdrawn legal-status Critical Current

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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 
    • B63B22/00—Buoys
    • B63B22/02—Buoys specially adapted for mooring a vessel
    • B63B22/021—Buoys specially adapted for mooring a vessel and for transferring fluids, e.g. liquids
    • B63B22/025—Buoys specially adapted for mooring a vessel and for transferring fluids, e.g. liquids and comprising a restoring force in the mooring connection provided by means of weight, float or spring devices

Definitions

  • the invention relates to a single point mooring structure for a vessel floating on the surface of a body of water and permanently to be moored to it.
  • the single point mooring is a tower structure fixedly installed on the floor of the body of water, while the vessel is coupled to the tower by a rigid arm assembly which serves to hold the vessel away from the tower.
  • This assembly is at one end pivotably hinged around a horizontal axis affixed to the bow of the vessel, and at the other end it is coupled to the tower structure in such a manner that the vessel is free to swing about the vertical axis of the structure by means of a turntable on top of the tower structure and two suspension members fixed to the rigid arm assembly.
  • a tower structure fixed to the floor of said body of water, the vessel to be connected to said tower by means of a rigid arm assembly which is connected at its vesselend in an "in principle" horizontally pivotable manner to the vessel, said tower structure having a turntable rotatable around a vertical axis and the rigid arm assembly being connected to said turntable by means of pivotable tension members which are attached to the towerends of the rigid arm assembly, the tension members being separated by a certain distance and the rigid arm'assembly and/or the tension members being tensioned by means of ballast to provide an all-directional restoring force on the mooring system.
  • the weight of the rigid arm assembly provides a restoring force and a restoring moment when the vessel moves towards, away or out-of-line with the tower's central point.
  • the restoring force is proportional to the weight of the rigid arm inclusive of its ballast weight, the sine of the angle of inclination from the vertical of the tension members, and the length of the tension members.
  • the value of the restoring moment is also proportional to the distance between the two tension members. The restoring moment can be altered by changing the length of the 'vertical' pivotable tension members, or by changing the weight of the rigid arm using ballast, depending on the demands imposed by the dimensions of the mooring arrangement, the expected weather and storm conditions, etc.
  • the rigid arm assembly consists of two triangular structures, each pivotally coupled with its basis to the vessel and with its apex to both a tension member and a ballast weight.
  • the figures show a vessel 1 floating upon a body of water 2, the surface of which is denoted by reference numeral 3.
  • the vessel 1 is moored to a single point mooring structure comprising a tower structure 4 having a foundation structure 5 anchored by means of one or more anchor piles 6 to the floor 7 of the water 2.
  • the tower carries a turntable 8 which is free to rotate about its vertical axis 9.
  • the mooring structure uses a rigid arm assembly 10 comprising two triangular structures 11, 12 each with their basis lla, 12a respectively by means of hinges 13, 14 on the one hand and 15, 16 on the other hand connected to a supporting structure 17 carried by the bow 18 of the vessel 1.
  • the axes of the hinges 11, 12 and 13, 14 are in principle horizontal.
  • the apexes 19, 20 of the structures 11, 12 respectively are connected to ballast weights 21, 22 and to tension members 23, 24 which are with their other ends 25, 26 connected to the turntable 8.
  • These tension members can be chains but the figures show an embodiment in which they are tubular members and their interconnections comprise hinges of which only the hinges for tension member 14 are shown and denoted with reference numerals 27, 28, 29.
  • Hinges 27 and 29 have horizontal, mutually parallel axes, the axe of hinge 27 is also horizontal but perpendicular to the other two.
  • the described arrangement allows for all movements of the vessel with respect to the tower structure and produces a restoring force and moment preventing the vessel from moving away or from riding up to the tower structure or from jack-knifing.
  • the shearforce levels in the rigid arm assembly can be lowered by inclining the axes of the hinges 13, 14 on the one hand and 15, 16 on the other hand slightly towards each other, depending on the width of the vessel.
EP82201300A 1982-10-15 1982-10-15 Einpunktverankerungseinrichtung mit starrem Arm Withdrawn EP0105976A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP82201300A EP0105976A1 (de) 1982-10-15 1982-10-15 Einpunktverankerungseinrichtung mit starrem Arm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82201300A EP0105976A1 (de) 1982-10-15 1982-10-15 Einpunktverankerungseinrichtung mit starrem Arm

Publications (1)

Publication Number Publication Date
EP0105976A1 true EP0105976A1 (de) 1984-04-25

Family

ID=8189524

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82201300A Withdrawn EP0105976A1 (de) 1982-10-15 1982-10-15 Einpunktverankerungseinrichtung mit starrem Arm

Country Status (1)

Country Link
EP (1) EP0105976A1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0188840A1 (de) * 1984-12-31 1986-07-30 Single Buoy Moorings Inc. Ankersystem
US4665856A (en) * 1985-10-03 1987-05-19 Sofec, Inc. Mooring apparatus
AU574289B2 (en) * 1986-07-01 1988-06-30 Single Buoy Moorings Inc. Mooring device
AU585760B2 (en) * 1984-02-06 1989-06-22 Bluewater Terminal Systems N.V. Mooring device
US5333340A (en) * 1993-02-09 1994-08-02 Moseley John F Mobile truck freight dock with impact and restraint means
EP1283159A1 (de) * 2001-08-06 2003-02-12 Single Buoy Moorings Inc. Übergabesystem für Kohlenwasserstoffe
GB2399329A (en) * 2003-03-13 2004-09-15 Bluewater Energy Services Bv Mooring apparatus incorporating a semi-submersible floating dock
GB2424404A (en) * 2005-03-21 2006-09-27 Bluewater Energy Services Bv Mooring apparatus with moveable balast weight
EP1826116A1 (de) * 2006-02-23 2007-08-29 Bluewater Energy Services B.V. Verankerungssystem für eine schwimmende Struktur

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2420475A1 (fr) * 1978-03-24 1979-10-19 Emh Systeme d'amarrage d'un corps flottant tel qu'un navire
NL8202335A (nl) * 1982-06-09 1982-08-02 Single Buoy Moorings Inrichting voor het op de plaats vasthouden van een lichaam met drijfvermogen ten opzichte van een ander lichaam.
NL8202334A (nl) * 1982-06-09 1982-08-02 Single Buoy Moorings Inrichting voor het op de plaats houden van een lichaam met drijfvermogen ten opzichte van een ander lichaam.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2420475A1 (fr) * 1978-03-24 1979-10-19 Emh Systeme d'amarrage d'un corps flottant tel qu'un navire
NL8202335A (nl) * 1982-06-09 1982-08-02 Single Buoy Moorings Inrichting voor het op de plaats vasthouden van een lichaam met drijfvermogen ten opzichte van een ander lichaam.
NL8202334A (nl) * 1982-06-09 1982-08-02 Single Buoy Moorings Inrichting voor het op de plaats houden van een lichaam met drijfvermogen ten opzichte van een ander lichaam.

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU585760B2 (en) * 1984-02-06 1989-06-22 Bluewater Terminal Systems N.V. Mooring device
US4694771A (en) * 1984-12-31 1987-09-22 Single Buoy Moorings Inc. Mooring device
EP0188840A1 (de) * 1984-12-31 1986-07-30 Single Buoy Moorings Inc. Ankersystem
US4665856A (en) * 1985-10-03 1987-05-19 Sofec, Inc. Mooring apparatus
AU574289B2 (en) * 1986-07-01 1988-06-30 Single Buoy Moorings Inc. Mooring device
US4802432A (en) * 1986-07-01 1989-02-07 Single Buoy Moorings Inc. Mooring device
US5333340A (en) * 1993-02-09 1994-08-02 Moseley John F Mobile truck freight dock with impact and restraint means
US6923225B2 (en) 2001-08-06 2005-08-02 Single Buoy Moorings, Inc. Hydrocarbon fluid transfer system
EP1283159A1 (de) * 2001-08-06 2003-02-12 Single Buoy Moorings Inc. Übergabesystem für Kohlenwasserstoffe
WO2003016128A1 (en) * 2001-08-06 2003-02-27 Single Buoy Moorings Inc Hydrocarbon fluid transfer system
US7066219B2 (en) 2001-08-06 2006-06-27 Single Buoy Moorings Inc. Hydrocarbon fluid transfer system
GB2399329B (en) * 2003-03-13 2005-02-02 Bluewater Energy Services Bv Mooring apparatus
US6915753B1 (en) 2003-03-13 2005-07-12 Bluewater Energy Services Bv Mooring apparatus
GB2399329A (en) * 2003-03-13 2004-09-15 Bluewater Energy Services Bv Mooring apparatus incorporating a semi-submersible floating dock
GB2424404A (en) * 2005-03-21 2006-09-27 Bluewater Energy Services Bv Mooring apparatus with moveable balast weight
GB2424404B (en) * 2005-03-21 2007-02-28 Bluewater Energy Services Bv Mooring apparatus with moveable ballast weight
US7322308B2 (en) 2005-03-21 2008-01-29 Bluewater Energy Services Bv Mooring apparatus with moveable ballast weight
EP1826116A1 (de) * 2006-02-23 2007-08-29 Bluewater Energy Services B.V. Verankerungssystem für eine schwimmende Struktur
WO2007096019A1 (en) * 2006-02-23 2007-08-30 Bluewater Energy Services B.V. Mooring system for a floating structure
CN101384474B (zh) * 2006-02-23 2011-11-23 蓝水能源服务有限公司 用于浮动结构的系泊系统

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE DE FR GB IT NL SE

17P Request for examination filed

Effective date: 19841008

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19851112

RIN1 Information on inventor provided before grant (corrected)

Inventor name: VAN HEIJST, WILLEM JAN