FR2877311A1 - Submarine appendage for e.g. pleasure cruise and leisure sail boat, has function for generating vertical lift for sailboat when sailboat navigates, where appendage is disposed under wind of sailboat to control adjustment torque for sailboat - Google Patents

Submarine appendage for e.g. pleasure cruise and leisure sail boat, has function for generating vertical lift for sailboat when sailboat navigates, where appendage is disposed under wind of sailboat to control adjustment torque for sailboat Download PDF

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Publication number
FR2877311A1
FR2877311A1 FR0411680A FR0411680A FR2877311A1 FR 2877311 A1 FR2877311 A1 FR 2877311A1 FR 0411680 A FR0411680 A FR 0411680A FR 0411680 A FR0411680 A FR 0411680A FR 2877311 A1 FR2877311 A1 FR 2877311A1
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France
Prior art keywords
sailboat
appendage
submarine
boat
sail boat
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Granted
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FR0411680A
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French (fr)
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FR2877311B3 (en
Inventor
Francois Paul Louis Co Rougier
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EMIG MARC
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EMIG MARC
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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
    • B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H9/00—Marine propulsion provided directly by wind power
    • B63H9/04—Marine propulsion provided directly by wind power using sails or like wind-catching surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B34/00—Vessels specially adapted for water sports or leisure; Body-supporting devices specially adapted for water sports or leisure
    • B63B34/40—Body-supporting structures dynamically supported by foils under water
    • 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
    • B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
    • B63B1/24—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type
    • B63B1/28—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type with movable hydrofoils
    • B63B1/285—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type with movable hydrofoils changing the angle of attack or the lift of the foil
    • 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
    • B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
    • B63B1/24—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type
    • B63B1/28—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type with movable hydrofoils
    • B63B1/30—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type with movable hydrofoils retracting or folding

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

The appendage has a main function for generating a vertical lift for a sail boat when the sail boat navigates, where the appendage is disposed under wind of the sailboat for controlling adjustment torque for the sail boat and is retractable alternatively from one or two sides of the sail boat. The adjustment torque is varied depending on the speed of the sail boat and an immersed surface of foil of the appendage.

Description

La présente invention concerne une disposition architecturale permettantThe present invention relates to an architectural arrangement allowing

d'augmenter la stabilité des voiliers de type monocoque par des fous, qui selon l'invention, va permettre d'augmenter les performance en terme de vitesse dans le cadre strict des règlements internationaux de course à la voire ISAF (International SAiling Federation) et des principales  to increase the stability of the monohull sailing boats by crazy people, which according to the invention will make it possible to increase the performance in terms of speed in the strict framework of the international race rules to the even ISAF (International SAiling Federation) and of the main

règles des grandes courses à la voile dans le monde.  rules of the great sailing races in the world.

La présente invention concerne également directement l'amélioration des performances des carènes des voiliers de loisir et croisière qui ne sont pas directement soumis aux contraintes des règles de course mais bénéficient généralement des améliorations provenant des bateaux de compétition.  The present invention also relates directly to improving the performance of the hulls of recreational and cruising sailboats that are not directly subject to the constraints of the racing rules but generally benefit from improvements from competition boats.

On considère généralement pour les voiliers que la navigation au portant se fait à de faibles angles de gîte (les valeurs de 0 à 10 sont généralement admises). C'est souvent à ces allures comprises entre le vent de travers et le vent arrière que le voilier atteint le planning , c'est-à-dire qu'il dépasse la vague d'étrave du train d'onde qu'il génère. C'est la seule façon de dépasser une vitesse critique proportionnelle à la racine carrée de la longueur à la flottaison.  It is generally considered for sailboats that the navigation downwind is at low angles of heel (the values of 0 to 10 are generally accepted). It is often at these speeds between the crosswind and the tailwind that the yacht reaches the schedule, that is to say, it exceeds the wave wave of the wave train that it generates. This is the only way to exceed a critical speed proportional to the square root of the length at the waterline.

Au contraire, la navigation au près (lorsqu'on navigue à un angle allant suivant les voiliers de 30 à 90 du sens contraire du vent) se fait à de forts angles du gîte (les valeurs de 10 à 30 sont généralement admises) car la composante des efforts générés par le gréement est très transversale au bateau. Pour cette même raison, la composante propulsive étant réduite, on ne peut généralement pas- planer et on est limité par la vitesse critique du bateau. Les formes des coques sont conçues afin de réduire au maximale la surface mouillée et l'énergie perdue en train d'onde à forte gîte lorsque la coque ne navigue plus que sur cette ce petit morceau ce coque long et étroit déporté sous le vent.  On the other hand, sailing upwind (when sailing at an angle between 30 to 90 yachts in the opposite direction of the wind) is done at high angles of the list (values of 10 to 30 are generally accepted) because the component of the efforts generated by the rig is very transversal to the boat. For the same reason, the propulsive component being reduced, it is generally not possible to hover and is limited by the critical speed of the boat. The shapes of the hulls are designed to minimize the wet surface and the energy lost in a wave train at high heels when the hull is sailing more than this small piece of the long hull and narrow deported leeward.

Seules les planches à voiles et quelques dériveurs peuvent à ce jour planer au près en raison de leur très faible poids comparé à la surface de toile que les équipages peuvent tenir.  Only sailboards and some dinghies can so far sail upwind because of their very low weight compared to the canvas surface that the crews can hold.

Pour les voiliers, pour augmenter la vitesse il est nécessaire d'augmenter la surface de voilure portée en réduisant le poids global. Cependant, pour augmenter ie surface de voilure il convient d'augmenter le stabilité des voiliers sans quoi ils se couchent et chavirent. Dans l'état actuel_ des techniques, plusieurs solutions existent et sont souvent utilisées ensembles dans te cas de monocoques.: Augmenter le poids du lest Allonger la quille afin de descendre le lest et le centre de gravité global Ajouter des ballasts latéraux remplis alternativement d'un bord ou de l'autre pour déplacer le centre de gravité latéralement au vent Faire penduler la. quille d'un bord ou de l'autre peur déplacer le centre de gravité latéralement au vent - Augmenter la largueur du bateau afin de décaler latéralement sous le vent le centre de la poussée d'Archimède flottaison lorsque le bateau gîte Actuellement les voiliers performants ont tous en commun une forte largeur associée à des ballasts ou une quille pendulaire, parfois les deux. Ces solutions ont les limites de leurs avantages.  For sailboats, to increase the speed it is necessary to increase the sail area carried by reducing the overall weight. However, to increase the sail area it is necessary to increase the stability of the sailboats otherwise they go to bed and capsize. In the current state of the art, several solutions exist and are often used together in the case of monohulls: Increase the weight of the ballast Lengthen the keel in order to lower the ballast and the overall center of gravity Add lateral ballasts filled alternately with one edge or the other to move the center of gravity sideways to the wind. keel from one side or the other fear move the center of gravity laterally to the wind - Increase the width of the boat in order to shift laterally downwind the center of the buoyancy buoyancy when the boat lodges Currently the high-performance sailboats have all in common a large width associated with ballasts or a pendulum keel, sometimes both. These solutions have the limits of their advantages.

Les ballasts s qui alourdissent { l'ensemble (prusiaulusi..ou_,a tonnes considérablement sur un voilier lier de moins de Il5 v tonnes S pour ceux du Vendée '.) vi globe par exemple) imposent a des efforts vlao très importants à la structure, notamment la résistance aux chocs dus a mer. Les quilles pendulaires sont des dispositifs coûteux en mécanique et qui restent assez fragiles. En plus ce ces limitations qui imposent souvent des renforts globaux de ta structure, les coques larges sont par définition plus lourdes que les coques étroites du simple fait de Leur surface développée plus importante.  The ballasts, which weigh on the whole (prusiaulusi, or tons, considerably on a sailboat to bind less than 15 tons for those of the Vendee.), For example, require a great deal of The pendulum keels are expensive devices in mechanics and remain quite fragile. In addition to these limitations that often require overall reinforcements of your structure, the wide hulls are by definition heavier than the narrow hulls simply because of their larger surface area.

La présente invention va permettre de solutionner 'ses limitations décrites ci dessus tout en apportant un ensemble améliorations significatives sur te comportement marin du voilier. Le dispositif 'f architecturai proposé repose d'équiper i le voilier d'un,,,,li'un ou i nouveau V.prepose sur le fait pFi.iSfeuTs- folle, rattachés à la coque, orientables et pilotabies ou non, qui, grâce à la portance qu'ils génèrent lorsque te voilier avance vont participer au couple 4.. .! de redressement de celui-ci (fini 1 p, Cette technologie bien connue dans les domaines de la navigation de commerce (transports de passagers, paquebots, moto yachts) et des navires militaires (stabilisation des frégates lors des phases de tir ou des portes avions) n'a jamais été appliquée aux voiliers monocoques. Le fait que ces derniers naviguent gîtés et que les besoins de stabilité dépendent de leur route par rapport au vent, de la force de ce dernier et de leur vitesse, d'une énergie électrique ou hydraulique disponible limitée, impose en outre des contraintes supplémentaires. Cette  The present invention will make it possible to solve its limitations described above while providing a set of significant improvements on the marine behavior of the sailboat. The proposed architectural scheme consists of equipping the sailboat with a new, or new, prototype on the basis of the foolproof, attached to the hull, orientable and pilotable or not, which , thanks to the lift that they generate when you sail ahead will participate in the couple 4 ..! straightening it (finished 1 p, This technology well known in the fields of commercial shipping (passenger transport, cruise ships, motorcycle yachts) and military vessels (stabilization of frigates during firing phases or aircraft gates ) has never been applied to monohulls, the fact that they sail sited and the stability requirements depend on their wind direction, wind speed and strength, electrical or limited available hydraulics, imposes additional constraints.

nouvelle llE$ disposition architecturale Se aSr Sait le principe que pour obtenir un i n fort 'base Éa couple de redressement, ., au lieu de déplacer le centre de gau vent (déplacement quille, gravité -... ..i ajout de poids), il est plus efficace de déplacer le centre de poussée résultante hydrostatique (flottabilité de la coque et des appendices) et hydrodynamique (portance de la coque et des appendices) sous te vent. L'ajout d'un flotteur étant impossible dans la définition d'un monocoque, un (des) foif(s) prévu(s) pour travailler proche de la position horizontale et sous la surface de ['eau sous te vent est (sont) choisi(s). La portance de ce(s) dernier(s) sous l'effet du déplacement du voilier va, en plus d'augmenter le couple de redressement, alléger le voilier qui naviguera plus haut sur l'eau, réduisais' ta traînée globale (traitas d'ondes vénérés et frottement avec l'eau) de la coque et facilitant le départ au planning. II est prévu que ces gains de traînée sont plus importants que la traînée du (des) foil(s).  new architectural layout will be the principle that to obtain a strong base of rectifying torque, instead of moving the center of the wind (displacement keel, gravity -... ..i added weight) it is more efficient to move the resulting hydrostatic thrust center (buoyancy of the hull and appendages) and hydrodynamic (lift of the hull and appendages) under wind. The addition of a float being impossible in the definition of a monohull, one (of) foif (s) planned (s) to work close to the horizontal position and under the surface of the water under wind is (are ) choose). The lift of this (s) last (s) under the effect of the displacement of the sailboat will, in addition to increase the torque of recovery, alleviate the sailboat which will sail higher on the water, reduced 'your overall drag (traitas revered waves and friction with the water) of the hull and facilitating the departure to the planning. It is expected that these drag gains are greater than the drag of the foil (s).

Ainsi, pour un angle de gîte donné, le couple de redressement sera dépendant de la vitesse du voilier, de ta surface immergée du fois et de l'incidence du (des) foit(s).  Thus, for a given angle of heel, the righting torque will be dependent on the speed of the sailboat, the immersed surface of the time and the incidence of (the) foit (s).

Cette nouvelle disposition architecturale permet de rentrer le(s) foil(s) dans la coque afin de pouvoir accoster dans les ports et les escamoter lorsque les conditions de navigations rendent leur effet néfaste pour ia vitesse (vent très faible).  This new architectural arrangement allows to enter the foil (s) in the hull in order to dock in ports and retract them when the conditions of navigation make their adverse effect for speed (very low wind).

J Dette nouvelle disposition architecturale permet un pilotage du (des) foil(s) en terme de longu1eur sortie de la coque d'un bord ou de l'autre et de réglage dynamique de l'incidence de ce (ces) dernier(s). Que l'énergie nécessaire soit manuelle (équipage), mécanique (générateur, éolienne, solaire... ) ou récupérée sur une partie déformable de le structure du voilier conçue à cet effet (fig2).  J Dette new architectural layout allows control of (the) foil (s) in terms of length out of the shell of one edge or the other and dynamic adjustment of the incidence of (these) last (s) . Whether the energy required is manual (crew), mechanical (generator, wind, solar ...) or recovered on a deformable part of the sailboat structure designed for this purpose (fig2).

Claims (1)

4 REVENDICATIONS4 CLAIMS 1) A ndics sous marins caractérisés en ce que, lorsque ie voilier navigue, un (des) c appendice) dont t 71a fonction 2$t a de.i générer une portance verticale principale principalement a$ eest (sont) disposés) du coté sous le vent du voilier pour accroître le couple de redressement et/ou le faire déjauger plus rapidement.  (1) Submarine characteristics characterized in that, when the sailboat is sailing, one of the appendices, whose function is to generate a main vertical lift mainly at $ east (are) arranged on the underside side. the wind of the boat to increase the recovery torque and / or to plan ahead faster. 2) Appendices sous marins selon la revendication 1 caractérisé en ce que le couple de 10 redressement est, pour un ange de gîte donné, dépendant de a vitesse du voilier, de a surface immergée du toit et de 'incidence du (des) foi (s) du dispositif 3) Appendices sous marins selon la revendication 1 caractérisé en ce que lorsque le voilier navigue, cet (ces) appendice(s) est (sont) escamotable(s) partiellement ou totalement 15 dans la coque et réglable(s) en incidence.  2) submarine appendages according to claim 1 characterized in that the rectification torque is, for a given starter angel, dependent on the speed of the boat, the immersed surface of the roof and the incidence of (the) faith ( s) of the device 3) Submarine appendages according to claim 1 characterized in that when the sailboat sails, this (these) appendix (s) is (are) retractable (s) partially or completely 15 in the hull and adjustable (s) in incidence. 4) Appendices sous marins selon ta revendication I. caractérisé en ce que lorsque la voilier est au port ou à l'arrêt, cet (ces) appendice(s) est (sont) totalement escamotable(s) alternativement d'un coté ou des deux du voilier.  4) submarine appendages according to claim I, characterized in that when the sailboat is at the port or stop, this (these) appendix (s) is (are) completely retractable (s) alternately on one side or two of the sailboat. 5) Appendices sous marins selon la revendication 1 caractérisé en ce que, lorsque cette disposition fonctionne de manière asservie à l'assiette au bateau, l'énergie utilisée pour les actionneurs du système provienne d'un générateur embarqué (combustible classique, pile, éolien, solaire, diesel.  5) Underwater appendices according to claim 1 characterized in that, when this arrangement operates in a controlled manner to the trim to the boat, the energy used for the actuators of the system comes from an on-board generator (conventional fuel, battery, wind) , solar, diesel. ) ou de ia déformationd'une partie de la structure du voilier spécialement conçue à cet effet  ) or deformation of a part of the structure of the sailboat specially designed for that purpose
FR0411680A 2004-11-03 2004-11-03 ARCHITECTURAL ARRANGEMENT FOR INCREASING THE STABILITY OF MONOCOQUE-TYPE SAILBOATS BY FOOT Expired - Fee Related FR2877311B3 (en)

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FR0411680A FR2877311B3 (en) 2004-11-03 2004-11-03 ARCHITECTURAL ARRANGEMENT FOR INCREASING THE STABILITY OF MONOCOQUE-TYPE SAILBOATS BY FOOT

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FR0411680A FR2877311B3 (en) 2004-11-03 2004-11-03 ARCHITECTURAL ARRANGEMENT FOR INCREASING THE STABILITY OF MONOCOQUE-TYPE SAILBOATS BY FOOT

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FR2877311A1 true FR2877311A1 (en) 2006-05-05
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007116318A3 (en) * 2006-04-07 2008-01-24 Dynamic Stability Systems Ltd Hydrofoil system for mono-hull sailboats

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007116318A3 (en) * 2006-04-07 2008-01-24 Dynamic Stability Systems Ltd Hydrofoil system for mono-hull sailboats
US7644672B2 (en) 2006-04-07 2010-01-12 Dynamic Stability Systems Limited Monohull sailing vessel having a lifting hydrofoil

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