DE3360459D1 - Heave compensating device for a submerged load suspended from a vessel - Google Patents

Heave compensating device for a submerged load suspended from a vessel

Info

Publication number
DE3360459D1
DE3360459D1 DE8383400651T DE3360459T DE3360459D1 DE 3360459 D1 DE3360459 D1 DE 3360459D1 DE 8383400651 T DE8383400651 T DE 8383400651T DE 3360459 T DE3360459 T DE 3360459T DE 3360459 D1 DE3360459 D1 DE 3360459D1
Authority
DE
Germany
Prior art keywords
jack
vessel
pulleys
fixed
cylinder
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.)
Expired
Application number
DE8383400651T
Other languages
German (de)
Inventor
Richard Eteki
Daniel Fleury
Jean-Pierre Manesse
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.)
Alstom SA
Original Assignee
Alsthom Atlantique SA
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 Alsthom Atlantique SA filed Critical Alsthom Atlantique SA
Application granted granted Critical
Publication of DE3360459D1 publication Critical patent/DE3360459D1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/02—Devices for facilitating retrieval of floating objects, e.g. for recovering crafts from water

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Electric Cable Installation (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Supports For Pipes And Cables (AREA)

Abstract

1. Device for the compensation of the pitch whereto a submerged load (2) is exposed which is suspended from a vessel (1) through a cable (3) one end of which is fixed to said load and the other end of which is wound on a winch (4) placed on the vessel, the cable, between the winch and the load, being wound on a tackle having first (6) and second (7) sets of pulleys, the tackle being associated with means (8) for causing the distance between the two sets of pulleys to vary in response to signals generated by a control chain receiving the results of inertial measurements at said load and/or of force measurements on said cable, said means comprising at least one jack (22) of a first type (active jack) the cylinder (22B) of which is fixed with respect to the vessel, the first set (6) of pulleys being rigidly connected to the cylinder, the second set (7) of pulleys being fixed to the end of the rod (22A) of the jack, said jack being actuated by a servo-valve (41) receiving said signals, the second set (7) of pulleys being further fixed to the rod (21A) of at least one jack (21) of a second type (passive jack), said jack having a cylinder (21B) which is fixed with respect to the vessel, said cylinder being connected to at least one hydraulic accumulator (26A) of the oil-gas type, characterized in that the accumulator (26A) is connected to a compressed gas source (35) through release means (36) having an output pressure which is adjustable in function of the length of the unwound cable in a manner to render the system substantially astatic.
DE8383400651T 1982-03-29 1983-03-29 Heave compensating device for a submerged load suspended from a vessel Expired DE3360459D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8205309A FR2523918A1 (en) 1982-03-29 1982-03-29 DEVICE FOR COMPENSATING FOR THE PILKING SUFFERED BY A SUBMERSIBLE LOAD SUSPENDED FROM A SHIP

Publications (1)

Publication Number Publication Date
DE3360459D1 true DE3360459D1 (en) 1985-09-05

Family

ID=9272494

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383400651T Expired DE3360459D1 (en) 1982-03-29 1983-03-29 Heave compensating device for a submerged load suspended from a vessel

Country Status (5)

Country Link
EP (1) EP0090741B1 (en)
AT (1) ATE14558T1 (en)
DE (1) DE3360459D1 (en)
FR (1) FR2523918A1 (en)
NO (1) NO831079L (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1280726A4 (en) * 2000-04-05 2006-12-13 Cooper Cameron Corp Active deployment system and method
NO336258B1 (en) 2007-09-19 2015-07-06 Nat Oilwell Varco Norway As Method and device for lift compensation.
CN101746493B (en) * 2010-01-29 2012-06-27 纪建阳 Submarine sightseeing diving system
CN106364630B (en) * 2016-09-22 2018-07-24 华中科技大学 One kind having half Active Heave Compensation System of cable underwater robot
CN110186648B (en) * 2019-06-19 2020-10-30 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） Wave load self-propelled ship model test protection device and use method thereof
CN111039177A (en) * 2019-12-24 2020-04-21 攀钢集团西昌钢钒有限公司 Bridge crane wire rope length measuring device
CN112097734B (en) * 2020-08-06 2022-05-27 中海石油(中国)有限公司深圳分公司 Semi-submersible platform heave measuring device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1511428A (en) * 1976-07-21 1978-05-17 British Columbia Res Council Heave compensating cranes
NO770299L (en) * 1977-01-28 1978-07-31 Stroemmen Staal A S SYSTEM FOR ACTIVE COMPENSATION OF UNDESIRED RELATIVE MOVEMENTS, PREFERREDLY DURING TRANSFER OF LOAD
FR2383876A2 (en) * 1977-03-17 1978-10-13 Elf Aquitaine Stabilisation system for barge anchored at sea - compensates for variation of distance between barge and sea bottom
US4179233A (en) * 1977-07-14 1979-12-18 National Advanced Drilling Machines, Inc. Vertical motion compensated crane apparatus
FR2418193A1 (en) * 1978-02-23 1979-09-21 Simon Francois Marine hoist control system - has rope stress detector with comparator to control secondary winch and prevent jerking
US4268013A (en) * 1978-06-12 1981-05-19 Nl Industries, Inc. Crane motion compensator
GB2045196B (en) * 1979-03-31 1982-12-08 Ferranti Ltd Cable tensioning device
GB2053127B (en) * 1979-06-19 1983-02-02 Gec Elliott Mech Handling Motion compensating system
WO1981001402A1 (en) * 1979-11-17 1981-05-28 Caley Hydraulics Ltd Heave compensator

Also Published As

Publication number Publication date
FR2523918B1 (en) 1985-05-03
ATE14558T1 (en) 1985-08-15
EP0090741A1 (en) 1983-10-05
FR2523918A1 (en) 1983-09-30
EP0090741B1 (en) 1985-07-31
NO831079L (en) 1983-09-30

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee