EP0719702A1 - Tragflügel mit festen Hinterkantenflossen für Schiffe - Google Patents

Tragflügel mit festen Hinterkantenflossen für Schiffe Download PDF

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Publication number
EP0719702A1
EP0719702A1 EP95400981A EP95400981A EP0719702A1 EP 0719702 A1 EP0719702 A1 EP 0719702A1 EP 95400981 A EP95400981 A EP 95400981A EP 95400981 A EP95400981 A EP 95400981A EP 0719702 A1 EP0719702 A1 EP 0719702A1
Authority
EP
European Patent Office
Prior art keywords
aileron
fin
trailing edge
fixed
ships
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
EP95400981A
Other languages
English (en)
French (fr)
Other versions
EP0719702B1 (de
Inventor
Alain Tessandier
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.)
FOURE LAGADEC
Original Assignee
NOUVELLE DES ATELIERS ET CHANTIERS DU HAVRE Ste
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 NOUVELLE DES ATELIERS ET CHANTIERS DU HAVRE Ste filed Critical NOUVELLE DES ATELIERS ET CHANTIERS DU HAVRE Ste
Publication of EP0719702A1 publication Critical patent/EP0719702A1/de
Application granted granted Critical
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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 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water

Definitions

  • Anti-roll stabilizers for ships with folding fins or those not currently known are fitted with fins, the structure of which can be simple (single fin) or complex (curvature flaps articulated on a single main fin).
  • the force perpendicular to the plane of the fin which produces the stabilization effect is characterized by a lift coefficient commonly called Cz.
  • the Cz coefficient varies according to fig. 2 depending on the inclination of the fin in the water streams.
  • the Zo part of the curve corresponds to the drop zone corresponding to a loss of lift.
  • the surfaces of the fins determine the weights and therefore the prices of the stabilizers.
  • they determine what is known as the loss of additional buoyancy, that is to say the volumes of water contained in the hull housings in which the fins are folded in. time.
  • the articulation of the flap on the main fin is carried out by all known mechanisms (pinions, connecting rods, etc.).
  • the Cz is improved but the installation is complex and expensive due to the articulation continuously in seawater.
  • This articulation can in certain cases constitute a limit to the surface of the fin, because the deformations of the fin in operation due to bending may be incompatible with this joint.
  • the resistance to advancement is high and can have, like the "fish" profile, a characteristic of abrupt withdrawal. An example of this type of profile is given in fig. 5.
  • the invention has the effect of increasing the Cz to a value substantially greater than that of a profile with a curvature flap, while retaining a simple structure and a resistance to advancement less than or at most equal to that of a profile in "fish" or curvature flap and this regardless of the span / average rope use ratio.
  • the stabilization device consists of a main fin with which are associated one or more pairs of fixed and medium camber flaps.
  • Fig. 1 is an illustrative diagram of a simple fin.
  • Fig. 2 is a curve illustrating the action of the fin.
  • Fig. 3 is a cross section of a single fin.
  • Fig. 3a is a section illustrating for various positions of the fin of FIG. 1 the direction of the water streams.
  • Fig. 4 is a cross section of a fin called "fish”.
  • Fig. 4a is a section illustrating for various positions of the fin of FIG. 4 the direction of the water streams.
  • Fig. 5 is a cross section illustrating a fin said to have a curvature flap.
  • Fig. 5a is a section illustrating for various positions of the fin of FIG. 5 the direction of the water streams.
  • Fig. 6 is a schematic section of a complex fin according to the invention.
  • Fig. 6a is a diagram corresponding to FIG. 6 illustrating various hydrodynamic characteristics.
  • Fig. 7 is a schematic plan of a fin according to the invention.
  • Fig. 8 is a partial perspective of the fin of FIG. 7 and highlighting particular construction characteristics.
  • Fig. 9 is a schematic side elevation of a variant of a fin according to the invention.
  • Fig. 10 is a schematic side elevation of another variant of a fin according to the invention.
  • Fig. 11 represents a set of comparative curves.
  • the profile of the fin has a relatively flat unhooking characteristic which makes it possible to absorb without difficulty the disturbances in the direction of the streams of water due to the residual movement of the ship and to the orbital speed of the swell. Examples of this type of profile are given in Figs. 6, 7, 9 and 10 which reveal flaps of known general shape.
  • main fin 1 (fig. 6) of known conventional symmetrical profile which is associated with one or more pairs of flaps 2 a and 2 b with fixed arched profiles relative to the main fin and located near the trailing edge F of the main fin, respectively on the lower side 1 a and upper side 1 b of the main fin, the camber of the flaps being opposite and symmetrical.
  • a profile comprising a single pair of flaps 2 a , 2 b is described in FIGS. 6 and 6a.
  • the flaps 2 a and 2 b are arranged so that the tangents to the leading edge Ta and Tb at their mean profile Pa and Pb are parallel to the mean plane of the main fin, but other arrangements such as oblique tangents can be considered.
  • the camber Pa, Pb of the flaps, their distance Xv, Ya, Yb to the main fin and their chord Cv can be adjusted according to the characteristics of the speed of movement of the profile in the ambient medium, the average immersion of the profile in this medium and resistance to advancement acceptable or predictable.
  • the main flap and the flaps can also be made up of conventional profiles, known or not, symmetrical or not.
  • the shutters can be without average camber.
  • the main fin 1 is equipped at its end (side opposite to the vessel N) with a plate 3 which limits the circulation of the ambient fluid between the lower surface 1 a and the upper surface 1 b .
  • the shutters 2 a and 2 b are connected fig. 7 to the main fin 1, on the one hand, by the plates 3 and 4 at the end of the main fin and, on the other hand, by spacers 5 a , 5 b , 5 c ... 5 f arranged on along profiles 1, 2 a and 2 b .
  • This connection can be made by any known means (welding, bolting, ).
  • the spacers 5 a , 5 b , 5 c .. may not exist.
  • An axis 6 keyed to the main wing 1 rotates the main fin 1 with his or her flaps 2 pairs and 2b and the plates 3 and 4. This assembly is equivalent to a single fin.
  • the aileron with fixed shutters described can be implemented for all the steering devices and for stabilizing ship movements and in general for any surface and any folding or non-folding assembly, whatever the ratio of wingspan to average chord of the fin.
  • the fin is therefore suitable for any passive system or assembly (control surface stabilization plan, drift, etc.) or active or semi-active and whether it is foldable or not.

Landscapes

  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Toys (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Vibration Prevention Devices (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Vehicle Body Suspensions (AREA)
  • Steroid Compounds (AREA)
  • Air Bags (AREA)
  • Paper (AREA)
  • Cookers (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Fats And Perfumes (AREA)
EP95400981A 1994-12-29 1995-04-28 Tragflügel mit festen Hinterkantenflossen für Schiffe Expired - Lifetime EP0719702B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9415881 1994-12-29
FR9415881A FR2728864B1 (fr) 1994-12-29 1994-12-29 Dispositif de stabilisation a volets au bord de fuite pour stabilisateurs anti-roulis de navire

Publications (2)

Publication Number Publication Date
EP0719702A1 true EP0719702A1 (de) 1996-07-03
EP0719702B1 EP0719702B1 (de) 2000-01-05

Family

ID=9470421

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95400981A Expired - Lifetime EP0719702B1 (de) 1994-12-29 1995-04-28 Tragflügel mit festen Hinterkantenflossen für Schiffe

Country Status (12)

Country Link
US (1) US5588391A (de)
EP (1) EP0719702B1 (de)
JP (1) JPH0924893A (de)
KR (1) KR100412927B1 (de)
AT (1) ATE188426T1 (de)
DE (1) DE69514322T2 (de)
DK (1) DK0719702T3 (de)
ES (1) ES2144586T3 (de)
FI (1) FI110421B (de)
FR (1) FR2728864B1 (de)
GR (1) GR3033139T3 (de)
NO (1) NO309080B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5768945A (en) * 1996-02-14 1998-06-23 Shimano, Inc. Extension handle for a bicycle shifting device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009010904U1 (de) * 2009-08-17 2010-12-30 Becker Marine Systems Gmbh & Co. Kg Tragflügel für Wasserfahrzeuge
JP2020172153A (ja) * 2019-04-09 2020-10-22 ヤマハ発動機株式会社 船舶用のトリムタブ、及びトリムタブを備える船舶

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB174019A (en) * 1920-07-07 1922-01-09 Anton Flettner Improvements in steering devices for ships and the like
US1661114A (en) * 1917-06-16 1928-02-28 Flettner Anton Method and device for the steering of ships
WO1992012046A1 (en) * 1991-01-04 1992-07-23 Vickers Plc Hydrodynamic fin for water-borne craft

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2142123A (en) * 1938-01-05 1939-01-03 Delmer S Fahrney Extension wing flap
US4172574A (en) * 1976-06-16 1979-10-30 National Research Development Corporation Fluid stream deflecting members for aircraft bodies or the like
NL9100048A (nl) * 1991-01-11 1992-08-03 Scheepswerf Damen B V Vaartuig, dat is voorzien van stabilisatievinnen.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1661114A (en) * 1917-06-16 1928-02-28 Flettner Anton Method and device for the steering of ships
GB174019A (en) * 1920-07-07 1922-01-09 Anton Flettner Improvements in steering devices for ships and the like
WO1992012046A1 (en) * 1991-01-04 1992-07-23 Vickers Plc Hydrodynamic fin for water-borne craft

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Using the rudders as stabilisers", MARINE ENGINEERS REVIEW, August 1992 (1992-08-01), LONDON, pages 32, XP000293250 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5768945A (en) * 1996-02-14 1998-06-23 Shimano, Inc. Extension handle for a bicycle shifting device

Also Published As

Publication number Publication date
FR2728864B1 (fr) 1997-03-14
JPH0924893A (ja) 1997-01-28
FI110421B (fi) 2003-01-31
NO309080B1 (no) 2000-12-11
KR960022155A (ko) 1996-07-18
DK0719702T3 (da) 2000-06-26
GR3033139T3 (en) 2000-08-31
NO951776L (no) 1996-01-02
KR100412927B1 (ko) 2004-03-20
FR2728864A1 (fr) 1996-07-05
ATE188426T1 (de) 2000-01-15
US5588391A (en) 1996-12-31
EP0719702B1 (de) 2000-01-05
DE69514322T2 (de) 2001-01-25
FI952369A0 (fi) 1995-05-16
ES2144586T3 (es) 2000-06-16
NO951776D0 (no) 1995-05-05
DE69514322D1 (de) 2000-02-10
FI952369L (fi) 1996-06-30

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