EP0281653B1 - Eisbrechendes Schiff - Google Patents

Eisbrechendes Schiff Download PDF

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Publication number
EP0281653B1
EP0281653B1 EP87103459A EP87103459A EP0281653B1 EP 0281653 B1 EP0281653 B1 EP 0281653B1 EP 87103459 A EP87103459 A EP 87103459A EP 87103459 A EP87103459 A EP 87103459A EP 0281653 B1 EP0281653 B1 EP 0281653B1
Authority
EP
European Patent Office
Prior art keywords
icebreaking
ship
ice
hull
stern
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 - Lifetime
Application number
EP87103459A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0281653A1 (de
Inventor
Günter Dipl.-Ing. Varges
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.)
Thyssen Nordseewerke GmbH
Original Assignee
Thyssen Nordseewerke GmbH
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 Thyssen Nordseewerke GmbH filed Critical Thyssen Nordseewerke GmbH
Priority to DE8787103459T priority Critical patent/DE3776785D1/de
Priority to EP87103459A priority patent/EP0281653B1/de
Priority to FI871559A priority patent/FI85967C/fi
Priority to SU874202445A priority patent/SU1612994A3/ru
Priority to NO874068A priority patent/NO172335C/no
Priority to CA000547942A priority patent/CA1311968C/en
Priority to PL1987268169A priority patent/PL161224B1/pl
Priority to JP62271574A priority patent/JPS63222996A/ja
Priority to CN87107200.9A priority patent/CN1004130B/zh
Publication of EP0281653A1 publication Critical patent/EP0281653A1/de
Priority to US07/320,897 priority patent/US5038695A/en
Application granted granted Critical
Publication of EP0281653B1 publication Critical patent/EP0281653B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/08—Ice-breakers or other vessels or floating structures for operation in ice-infested waters; Ice-breakers, or other vessels or floating structures having equipment specially adapted therefor
    • 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
    • B63B1/04—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull
    • B63B1/06—Shape of fore part

Definitions

  • the invention relates to an icebreaking ship with a hull with the widest width formed in the foredeck in the area of the icebreaking waterline and with devices for trimming and ballasting.
  • EP-A-00 97 002 is a ship according to the preamble of claim 1 for a trip in open or ice-covered water with a pontoon-shaped forecastle lying above the waterline, the side walls running parallel to one another and extending over the entire width of the ship and in the underwater hull has a flat and strongly forward-inclined end face, which merges backwards into a central keel, and with a stern and with drive devices housed in it, known, in which the side edges in the transition area of the fore-end sidewalls to the end face are curved and running in the side edge longitudinal direction are laterally protruding from the planes formed by the forecastle side walls in such a way that the distance the greatest width of the underwater hull forms between the side edges below the construction waterline, the undersides of the frames between the two side edges starting from the point of the length of the ship at which the end face merges with the center keel to the point at which it reaches the bottom of the ship , transversely ar
  • the conditions for the shear fracture of a one-piece floe from the solid ice sheet should be made even more favorable and the guidance of the floe under the water should be reduced with reduced risk of clod crushing to many fragments, so that the lateral placement of the floe under the solid Ice cover is achieved even more reliably.
  • DE-A-2 112 333 discloses a cargo ship for travel routes in ice, which is designed in such a way that ice build-up is to be avoided in the broken channel.
  • the cargo ship points to the front shoulder in the direction of travel in the area of the swimming water line swellings on both sides, which on the one hand are harmoniously traced into the shape of the ship constricting towards the stern in the water lines and whose discontinuous transition into the shape of the central aisle on the other hand is comparable in position and shape to an icebreaker stick.
  • the longitudinal cuts have a shape that is favorable for ice breaking, both for forward and backward travel, the water lines being harmoniously traced into the shape of the ship tapering towards the stem.
  • the swellings settle more or less abruptly.
  • a design results in a larger head width of the ship on the shoulder, ie at the point at the transition from the mostly parallel central aisle and the taper of the hull to the stern.
  • the width of the central aisle jumps back more or less abruptly in order to take on an ice-breaking function if necessary.
  • Such swellings that widen the bow can also be provided at the stern.
  • the swellings on both sides extend into the area of the flat keel, so that in cross-section these swellings have a wedge shape pointing downwards, the thickness of the wedge in the swimming water line leading to a widening that is larger compared to the hull width and compared to that Bow with swellings on both sides is larger. However, no width is obtained in the stern area that is larger than the width of the bow.
  • the position of these swellings in the stern area is determined by a swim line effective when reversing, which can differ from the normal swim water line in that the bow of the ship hits the solid ice has run up and is lifted out of the water or has assumed this position due to an intentional agreement.
  • the widening of the hull on the foredeck or in the stern area is a fixed training component of the hull.
  • the swellings continue to submerge, so that there is only a slight deviation of the swimming water line effective when reversing from the normal swimming water line. If no increased power is applied, then the ship's power and thus the cruising speed are reduced, since the widening of the hull lying in the swimming water line offers considerable resistance.
  • no significant improvements are achieved when reversing and especially when traveling in a turning circle, since even if the hull is trimmed and the stern is lowered, there is no significant widening compared to the forward width of the hull.
  • the invention solves the problem of creating an ice-breaking ship of the type mentioned at the outset with particular suitability for ice-breaking in reverse travel and for ice-breaking in a fart in a rotating circle, in which optimal forward travel with good reverse travel ice-breaking properties are combined with one another.
  • 1 is the normal water line
  • 2 is the direction of travel of an icebreaking ship 100
  • 3 is the trimmed icebreaking water line
  • 3a is the lowered icebreaking water line
  • 3 is the trimmed icebreaking water line for an icebreaking ship with crushing shoulders provided on the side of the stern 5 and 6 denotes the ice floes generated by the crushing shoulders 5.
  • the icebreaking ship 100 consists of the hull 10, the bow of which is indicated at 11 and the stern of which is indicated at 12; its bow is labeled 13.
  • Fig. 1 in conjunction with Fig. 2 shows the growing improvement in icebreaking performance from waterline form A as the worst form via waterline form B to waterline form C as the best waterline form of known hull designs.
  • 3 to 5 using the example of the known icebreaking ship described at the outset, the icebreaking process during forward travel (FIG. 4) is shown on the normal icebreaking water line 1 and when traveling backward (FIG. 5) on the trimmed icebreaking water line 3, wherein it can be seen that When moving forward in the ice cover, a smoothly cut ice-free break channel is generated and regularly shaped, approximately rectangular ice floes 4 are conveyed laterally under the unbroken ice cover and removed from the area of the ship's propeller. When reversing with the stern lowered onto the water line 3, a break channel is created in the ice, which allows the cutting edges at the bow, which form the widest point of the hull, to pass through the broken channel.
  • FIG. 6 shows, the stern ship 12 of the hull 10 of the icebreaking ship 100 is provided with crushing shoulders 5, which are formed on both sides of the hull 10 in the stern area on the hull.
  • the largest break channel width B1 obtained by the crushing shoulders 5 is larger than the largest foreship width B, so that a further breaking process, which widens the break channel and reduces the turning circle, is triggered by the breaking shoulders or the respective breaking shoulder with a well-adjusted stern ship 12.
  • the ice floes are indicated at 6.
  • the shape of the aft ship corresponds approximately to that as shown in FIG. 6.
  • the stern 12 can have a greater width than the width of the fore 11.
  • the waterline areas 14, 15 in the aft area 12 merge into laterally protruding, ie widening, sections 5a, so that the waterlines of the aft ship 12 have an approximately club-like widening, but the aft design is also different than how 6 may have the shape shown.
  • the transitions of the ship's side walls 14, 15 in the area of the sections 5a to the partially elliptical profile 5b can run in a straight line, but for fluidic reasons it will be advantageous to provide circular sections 5a which have a sliding surface-like effect.
  • the configuration of the stern aisle 12 of an icebreaking ship 100 shown in FIG. 6 is particularly favorable for forward turning circles in the ice.
  • the devices required for trimming and ballasting the hull 10 are designed in a manner known per se and are not shown in the drawings.
  • the deep immersion of the stern of the hull 10 to improve the backward breaking ability is achieved by quickly pumping over ballast water in the longitudinal direction of the ship or by additional ballast water absorption.
  • a rotor rudder 7 shows a high-performance rudder arranged in the jet of a propeller 9, by means of which the icebreaking effect of the crushing shoulder 5 at the stern of the hull 10 is increased.
  • Oars sensitive to ice contact are preferably used, e.g. a rotor rudder 7 with an integrated, rotationally driven cylinder 8, with which, as is known, transverse forces in the amount of 50 to 65% of the forward thrust of the main propellers can be generated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Prevention Of Electric Corrosion (AREA)
  • Production, Working, Storing, Or Distribution Of Ice (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
  • Toys (AREA)
  • Insulated Conductors (AREA)
  • Contacts (AREA)
  • Thermally Actuated Switches (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
EP87103459A 1987-03-10 1987-03-10 Eisbrechendes Schiff Expired - Lifetime EP0281653B1 (de)

Priority Applications (10)

Application Number Priority Date Filing Date Title
DE8787103459T DE3776785D1 (de) 1987-03-10 1987-03-10 Eisbrechendes schiff.
EP87103459A EP0281653B1 (de) 1987-03-10 1987-03-10 Eisbrechendes Schiff
FI871559A FI85967C (fi) 1987-03-10 1987-04-09 Isbrytare
SU874202445A SU1612994A3 (ru) 1987-03-10 1987-04-29 Ледокольное судно
CA000547942A CA1311968C (en) 1987-03-10 1987-09-28 Icebreaker
NO874068A NO172335C (no) 1987-03-10 1987-09-28 Isbryter
PL1987268169A PL161224B1 (pl) 1987-03-10 1987-10-12 Lodolamacz PL
JP62271574A JPS63222996A (ja) 1987-03-10 1987-10-27 砕氷船
CN87107200.9A CN1004130B (zh) 1987-03-10 1987-10-28 破冰船
US07/320,897 US5038695A (en) 1987-03-10 1989-03-09 Icebreaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP87103459A EP0281653B1 (de) 1987-03-10 1987-03-10 Eisbrechendes Schiff

Publications (2)

Publication Number Publication Date
EP0281653A1 EP0281653A1 (de) 1988-09-14
EP0281653B1 true EP0281653B1 (de) 1992-02-19

Family

ID=8196821

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87103459A Expired - Lifetime EP0281653B1 (de) 1987-03-10 1987-03-10 Eisbrechendes Schiff

Country Status (10)

Country Link
US (1) US5038695A (ja)
EP (1) EP0281653B1 (ja)
JP (1) JPS63222996A (ja)
CN (1) CN1004130B (ja)
CA (1) CA1311968C (ja)
DE (1) DE3776785D1 (ja)
FI (1) FI85967C (ja)
NO (1) NO172335C (ja)
PL (1) PL161224B1 (ja)
SU (1) SU1612994A3 (ja)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3910552A1 (de) * 1989-04-01 1990-10-04 Schueler Joerg Verfahren zur verringerung des drehkreises von eisbrechenden schiffen
AU662719B2 (en) * 1990-12-18 1995-09-14 United States Surgical Corporation Safety device for a surgical stapler cartridge
US5325803A (en) * 1991-01-16 1994-07-05 Thyssen Nordseewerke Gmbh Icebreaking ship
DE4101034A1 (de) * 1991-01-16 1992-07-23 Thyssen Nordseewerke Gmbh Eisbrechendes schiff
US5660131A (en) * 1996-05-10 1997-08-26 Marinette Marine Corp Icebreaker attachment
FI109783B (fi) * 1997-02-27 2002-10-15 Kvaerner Masa Yards Oy Menetelmä kulkutien avaamiseksi jääkentän läpi ja jäänmurtaja
JP3038324B2 (ja) * 1997-07-08 2000-05-08 ティーケイシッピングジャパン株式会社 バラスト水自動換水システム
RU2483967C2 (ru) * 2009-03-10 2013-06-10 ВЭРТСИЛЭ ШИП ДИЗАЙН ДЖЁМАНИ ГмбХ Ледокольная система для плавающих тел
CN103832569A (zh) * 2012-11-22 2014-06-04 中国舰船研究设计中心 一种船用抗冰型舵装置保护结构
CN103231780B (zh) * 2013-05-23 2015-08-12 中国船舶重工集团公司第七○二研究所 一种冰区工作船
UA117143C2 (uk) * 2013-10-11 2018-06-25 Ульстейн Дізайн Енд Солюшнз Ас Судно з покращеною формою корпусу
CN106939588B (zh) * 2017-03-06 2019-05-03 新昌县知行智能科技有限公司 一种燃烧吹融连续破冰机构
CN113602434B (zh) * 2021-10-11 2021-12-07 南通澳洋船务有限公司 一种带有破冰功能的船舶

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA948932A (en) * 1970-06-16 1974-06-11 Esso Research And Engineering Company Icebreaker hull construction
CA947582A (en) * 1970-06-22 1974-05-21 Esso Research And Engineering Company Wide beam forward construction for icebreaking ships
US3690281A (en) * 1970-12-21 1972-09-12 Exxon Research Engineering Co Stern construction for icebreaking vessels
DE2112333A1 (de) * 1971-03-15 1972-09-21 Weser Ag Frachtschiff fuer Fahrtrouten in Eis
JPS5825530B2 (ja) * 1977-11-18 1983-05-27 村田機械株式会社 パンチプレス機における切断片除去方法
DE2820355C2 (de) * 1978-05-10 1984-02-02 Jastram-Werke Gmbh Kg, 2050 Hamburg Ruder für Wasserfahrzeuge und schwimmendes Gerät
JPS60219193A (ja) * 1984-04-13 1985-11-01 Mitsubishi Heavy Ind Ltd 船体の耐氷補強構造

Also Published As

Publication number Publication date
NO874068D0 (no) 1987-09-28
NO172335B (no) 1993-03-29
FI85967C (fi) 1995-11-04
SU1612994A3 (ru) 1990-12-07
CA1311968C (en) 1992-12-29
NO172335C (no) 1993-07-07
PL268169A1 (en) 1988-09-01
US5038695A (en) 1991-08-13
FI85967B (fi) 1992-03-13
EP0281653A1 (de) 1988-09-14
JPS63222996A (ja) 1988-09-16
JPH0525716B2 (ja) 1993-04-13
FI871559A (fi) 1988-09-11
CN87107200A (zh) 1988-09-21
PL161224B1 (pl) 1993-06-30
DE3776785D1 (de) 1992-03-26
CN1004130B (zh) 1989-05-10
NO874068L (no) 1988-09-12
FI871559A0 (fi) 1987-04-09

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