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JPS57121993A - Semi-submerged off-shore structure - Google Patents

Semi-submerged off-shore structure

Info

Publication number
JPS57121993A
JPS57121993A JP56008359A JP835981A JPS57121993A JP S57121993 A JPS57121993 A JP S57121993A JP 56008359 A JP56008359 A JP 56008359A JP 835981 A JP835981 A JP 835981A JP S57121993 A JPS57121993 A JP S57121993A
Authority
JP
Japan
Prior art keywords
hull
struts
water
sea
under
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.)
Pending
Application number
JP56008359A
Other languages
Japanese (ja)
Inventor
Yoshio Otagaki
Masabumi Kamifuji
Yasushi Fukui
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.)
IHI Corp
Original Assignee
Ishikawajima Harima Heavy Industries Co Ltd
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 Ishikawajima Harima Heavy Industries Co Ltd filed Critical Ishikawajima Harima Heavy Industries Co Ltd
Priority to JP56008359A priority Critical patent/JPS57121993A/en
Publication of JPS57121993A publication Critical patent/JPS57121993A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B35/4413—Floating drilling platforms, e.g. carrying water-oil separating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
    • B63B1/107—Semi-submersibles; Small waterline area multiple hull vessels and the like, e.g. SWATH
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
    • B63B1/14—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected resiliently or having means for actively varying hull shape or configuration
    • B63B2001/145—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected resiliently or having means for actively varying hull shape or configuration having means for actively varying hull shape or configuration

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)

Abstract

PURPOSE:To restrain oscillation of an off-shore structure to the least minimum under various sea conditions, by enabling an under-water hull to ascend and descend with respect to a hull above the water so that the under-water hull is held at a suitable depth, depending upon sea condition. CONSTITUTION:Upper hull struts 3 each formed with a vertical hollow portion are planted to an upper hull which is above the water, at predetermined positions of the upper hull. Struts 4 of a lower hull 5 which is under the water, are slidably fitted into the hollow portions of the upper hull struts 3 so that the lower hull 5 may be ascend and descend with respect to the upper hull 1. Accordingly, the lower hull 5 is elevated as shown in Fig. (a) when the sea is calm, while the lower hull 5 is held at a predetermined depth, as shown in Fig. (b), by charging ballast into the upper hull struts 3, the lower hull struts 4 and the lower hull 5, when the sea is restless.
JP56008359A 1981-01-22 1981-01-22 Semi-submerged off-shore structure Pending JPS57121993A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56008359A JPS57121993A (en) 1981-01-22 1981-01-22 Semi-submerged off-shore structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56008359A JPS57121993A (en) 1981-01-22 1981-01-22 Semi-submerged off-shore structure

Publications (1)

Publication Number Publication Date
JPS57121993A true JPS57121993A (en) 1982-07-29

Family

ID=11691031

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56008359A Pending JPS57121993A (en) 1981-01-22 1981-01-22 Semi-submerged off-shore structure

Country Status (1)

Country Link
JP (1) JPS57121993A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1339922A1 (en) * 2000-10-10 2003-09-03 Coflexip Heave suppressed offshore drilling and production platform
JP2015147573A (en) * 2015-03-20 2015-08-20 嘉義 辻本 Tsunami measure floating body building
JP2017137051A (en) * 2017-03-17 2017-08-10 嘉義 辻本 Marine floating structure or offshore floating structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1339922A1 (en) * 2000-10-10 2003-09-03 Coflexip Heave suppressed offshore drilling and production platform
EP1339922A4 (en) * 2000-10-10 2006-08-02 Technip France Heave suppressed offshore drilling and production platform
JP2015147573A (en) * 2015-03-20 2015-08-20 嘉義 辻本 Tsunami measure floating body building
JP2017137051A (en) * 2017-03-17 2017-08-10 嘉義 辻本 Marine floating structure or offshore floating structure

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