WO1998001774A1 - Multipurpose anchoring piece for meteorological balloons - Google Patents

Multipurpose anchoring piece for meteorological balloons Download PDF

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Publication number
WO1998001774A1
WO1998001774A1 PCT/FR1997/000767 FR9700767W WO9801774A1 WO 1998001774 A1 WO1998001774 A1 WO 1998001774A1 FR 9700767 W FR9700767 W FR 9700767W WO 9801774 A1 WO9801774 A1 WO 9801774A1
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WO
WIPO (PCT)
Prior art keywords
balloon
envelope
main
main balloon
anchoring
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Application number
PCT/FR1997/000767
Other languages
French (fr)
Inventor
Nicolas Barat
Original Assignee
Societe Nouvelle D'aerostats Stabilises
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Publication date
Application filed by Societe Nouvelle D'aerostats Stabilises filed Critical Societe Nouvelle D'aerostats Stabilises
Publication of WO1998001774A1 publication Critical patent/WO1998001774A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64B—LIGHTER-THAN AIR AIRCRAFT
    • B64B1/00—Lighter-than-air aircraft
    • B64B1/40—Balloons
    • B64B1/50—Captive balloons
    • B64B1/54—Captive balloons connecting two or more balloons in superimposed relationship
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01W—METEOROLOGY
    • G01W1/00—Meteorology
    • G01W1/08—Adaptations of balloons, missiles, or aircraft for meteorological purposes; Radiosondes

Definitions

  • the present invention relates to a device for making the movement of balloons more stable during their ascent and it is more particularly intended for meteorological balloons of the closed type which are used to measure the wind in the earth's atmosphere and which are made with an expandable envelope. . It is well known that under the effect of vertical speed, this type of balloon exhibits during the rise significant parasitic movements which are due to the existence of vortex movements, said movements being able to seriously distort the measurements. It is therefore easily understood that if we want these balloons to reproduce the movements of the atmosphere as faithfully as possible, it is necessary to reduce the amplitude of these parasitic movements as much as possible and therefore to maximize their stability during the climb.
  • the device according to the invention makes it possible to achieve this result in the case of these closed weather balloons and of expandable material.
  • a secondary balloon which is also closed and fixed in a semi-rigid manner above the pole of the main balloon whose stability is to be improved, said secondary balloon being upstream from the main balloon and having one in it made of expandable material so that its volume increases with altitude in the same proportions as that of the main balloon.
  • an anchoring system is used to semi-rigidly fix one or more elements on the main balloon such that it is the envelope itself of the balloon which ensures by its elasticity the rigidity of the fixation.
  • This envelope is interposed between two cylindrical parts of the same axis and made of a rigid but deformable material of the foam type, said parts being able to slide relative to one another.
  • this anchoring system is used to semi-rigidly fix the secondary balloon on the upper pole of the main balloon, by means of a so-called connection system which is integral with the secondary balloon. and which comes to fit rigidly on the anchoring system.
  • connection system which is integral with the secondary balloon. and which comes to fit rigidly on the anchoring system.
  • the secondary balloon has a substantially spherical shape and it is fixed directly to a connection assembly made up of cylindrical parts, an assembly which comes to fit in the central cylinder of the part of the external anchoring system to the main ball.
  • FIG. 1 shows in section the device according to the invention using as a secondary balloon a balloon of substantially spherical shape.
  • the secondary balloon (5) whose envelope is (12) is, prior to release, inflated to a certain volume and it is made integral with the part (13) by means of a wire (20) which passes through the cylinder (14).
  • This wire (20) which is hooked by one end to the filling tube (24) of the balloon (5) passes through a disc (21) through an orifice (25). It ends with a knot (22) of diameter greater than that of the orifice (25).
  • the anchoring piece (3) can be used for the passage of electrical wires through the balloon between the upper pole and the lower measurement nacelle (2) which is hung below.
  • Figure 4 which shows in section the device according to the invention - electrical wires (29a) and (29b) coming from the nacelle (2) pass inside a cylindrical sheath (28) which first crosses the part (8) through a cylindrical conduit (29) pierced for this purpose and then the envelope (11) of the main balloon through a hole (30).

Abstract

The invention discloses a device for providing greater stability to the movement of closed meteorological balloons made of dilatable material. It concerns a device to increase both the vortex of the balloon boundary layer and its aerodynamic profile. It consists, besides the main balloon (1) whose stability is to be improved, of a second balloon (5) also closed and made of a dilatable material which is fixed semirigidly on the main balloon upper pole, the two balloons increasing in volume in the same proportion. The balloons are mutually fixed by an anchoring piece (3) which ensures the linking rigidity by using the resilient tension of the main balloon envelope.

Description

Pièce d'ancrage multi - usages pour ballons météorologiquesMulti-purpose anchor for weather balloons
La présente invention concerne un dispositif pour rendre plus stable le mouvement des ballons au cours de leur montée et elle est plus particulièrement destinée aux ballons météorologiques de type fermé qui servent à mesurer le vent dans 1 ' atmosphère terrestre et qui sont faits avec une enveloppe dilatable. Il est effet bien connu que sous 1 ' effet de la vitesse verticale ce type de ballon présente au cours de la montée des mouvements parasites importants qui sont dus à l'existence de mouvements tourbillonnaires , lesdits mouvements pouvant fausser gravement les mesures. On conçoit donc facilement que si on veut que ces ballons restituent le plus fidèlement possible les mouvements de 1 ' atmosphère il faille diminuer au maximum 1 ' amplitude de ces mouvements parasites et donc augmenter au maximum leur stabilité en cours de montée. De façon générale, il est nécessaire pour améliorer la réponse d'un ballon aux variations de la vitesse de 1 ' air de lui assurer simultanément un écoulement le plus turbulent possible dans sa couche limite et un profil aérodynamique très stable. Le dispositif suivant l'invention permet d' arriver à ce résultat dans le cas de ces ballons météorologiques fermés et en matériau dilatable. Il comporte en effet suivant une première caractéristique, un ballon secondaire lui aussi fermé et fixé de façon semi-rigide au dessus du pôle du ballon principal dont on veut améliorer la stabilité , ledit ballon secondaire étant en amont du ballon principal et ayant une en eloppe en matériau dilatable de telle sorte que son volume augmente avec 1 ' altitude dans les mêmes proportions que celui du ballon principal. L'effet du ballon secondaire qui est avantageusement pris de plus petite dimension que le ballon principal est,d'une part, de créer derrière lui, et donc sur la surface du ballon principal, un sillage turbulent favorisant sa réponse au vent et, d'autre part, de donner à l'ensemble des deux ballons un profil aérodynamique stable. Suivant une seconde caractéristique de l'invention, on utilise pour fixer de façon semi-rigide un ou plusieurs 5 éléments sur le ballon principal un système d'ancrage tel que c'est l'enveloppe elle même du ballon qui assure de par son élasticité la rigidité de la fixation. Pour ce faire cette enveloppe est interposée entre deux pièces cylindriques de même axe et faites en un matériau rigide mais deformable de type mousse, lesdites pièces pouvant coulisser l'une par rapport à l'autre. La première pièce qui est située à l'intérieur du ballon est plaquée sur la seconde qui est à 1 ' extérieur du ballon par les forces de tension de ladite enveloppe ce qui assure à la fois la rigidification de 1 ' ensemble des deux pièces avec le ballon principal et une répartition optimale des contraintes sur l'enveloppe. Suivant une troisième caractéristique de l'invention, ce système d'ancrage est utilisé pour fixer de façon semi-rigide le ballon secondaire sur le pôle supérieur du ballon principal et ce au moyen d'un système dit de liaison qui est solidaire du ballon secondaire et qui vient s ' emboiter de façon rigide sur le système d' ancrage. Selon des modes particuliers de réalisation: - Le ballon secondaire a une forme sensiblement sphérique et il est fixé directement sur un ensemble de liaison constitué de pièces cylindriques , ensemble qui vient s ' emboiter dans le cylindre central de la pièce du système d'ancrage extérieure au ballon principal. - Au voisinage de l'axe de symétrie du système d'ancrage l'enveloppe du ballon principal est percée d'un ou plusieurs orifices destinés à permettre le passage de fils électriques transmettant des informations entre les parties inférieures et supérieures du ballon - La pièce d ' ancrage du ballon principal est munie de un ou plsieurs mâts servant à la fixation de capteurs aérologiques tels que ceux de température ou d'humidité. Les dessins annexés illustrent l'invention : La figure 1 représente en coupe, le dispositif suivant 1 ' invention utilisant comme ballon secondaire un ballon de forme sensiblement sphérique.The present invention relates to a device for making the movement of balloons more stable during their ascent and it is more particularly intended for meteorological balloons of the closed type which are used to measure the wind in the earth's atmosphere and which are made with an expandable envelope. . It is well known that under the effect of vertical speed, this type of balloon exhibits during the rise significant parasitic movements which are due to the existence of vortex movements, said movements being able to seriously distort the measurements. It is therefore easily understood that if we want these balloons to reproduce the movements of the atmosphere as faithfully as possible, it is necessary to reduce the amplitude of these parasitic movements as much as possible and therefore to maximize their stability during the climb. In general, it is necessary to improve the response of a balloon to variations in air speed to simultaneously provide it with the most turbulent flow possible in its boundary layer and a very stable aerodynamic profile. The device according to the invention makes it possible to achieve this result in the case of these closed weather balloons and of expandable material. According to a first characteristic, it also has a secondary balloon which is also closed and fixed in a semi-rigid manner above the pole of the main balloon whose stability is to be improved, said secondary balloon being upstream from the main balloon and having one in it made of expandable material so that its volume increases with altitude in the same proportions as that of the main balloon. The effect of the secondary balloon which is advantageously taken in a smaller dimension than the main balloon is, on the one hand, to create behind it, and therefore on the surface of the main balloon, a turbulent wake promoting its response to wind and, on the other hand, to give the set of two balloons a stable aerodynamic profile. According to a second characteristic of the invention, an anchoring system is used to semi-rigidly fix one or more elements on the main balloon such that it is the envelope itself of the balloon which ensures by its elasticity the rigidity of the fixation. To do this envelope is interposed between two cylindrical parts of the same axis and made of a rigid but deformable material of the foam type, said parts being able to slide relative to one another. The first part which is situated inside the balloon is pressed against the second which is outside the balloon by the tension forces of said envelope which ensures both the stiffening of the assembly of the two parts with the main balloon and an optimal distribution of the stresses on the envelope. According to a third characteristic of the invention, this anchoring system is used to semi-rigidly fix the secondary balloon on the upper pole of the main balloon, by means of a so-called connection system which is integral with the secondary balloon. and which comes to fit rigidly on the anchoring system. According to particular embodiments: - The secondary balloon has a substantially spherical shape and it is fixed directly to a connection assembly made up of cylindrical parts, an assembly which comes to fit in the central cylinder of the part of the external anchoring system to the main ball. - In the vicinity of the axis of symmetry of the anchoring system, the envelope of the main balloon is pierced with one or more orifices intended to allow the passage of electrical wires transmitting information between the lower and upper parts of the balloon - The anchoring part of the main balloon is provided with one or more masts used to fix aerological sensors such as those of temperature or humidity. The accompanying drawings illustrate the invention: FIG. 1 shows in section the device according to the invention using as a secondary balloon a balloon of substantially spherical shape.
La figure 2 représente en coupe le détail de la pièce d'ancrage sur le ballon principal. La figure 3 représente toujours en coupe le détail de la fixation du ballon secondaire sur le système de liaison ainsi que sa fixation avec la pièce d'ancrage. La figure 4 enfin représente à titre d'exemple non limitatif une variante du dispositif dans lequel on utilise la pièce d'ancrage pour la fixation de capteurs au dessus du ballon principal et le passage à travers le ballon de fils électriques conduisant 1 ' information entre ces capteurs et la nacelle aérologique du bas.Figure 2 shows in section the detail of the anchor on the main balloon. FIG. 3 still shows in section the detail of the attachment of the secondary balloon to the connection system as well as its attachment to the anchoring part. FIG. 4 finally represents by way of nonlimiting example a variant of the device in which the anchoring part is used for fixing sensors above the main balloon and the passage through the balloon of electrical wires leading to the information between these sensors and the bottom aerological nacelle.
En référence à ces dessins la pièce d'ancrage (3) est fixée de façon semi-rigide sur le pôle supérieur du ballon principal (1) sous lequel est accrochée de manière classique par un fil (6) une nacelle de mesure aérologique (2 ) . Le ballon secondaire (5 ) est solidaire d'une pièce de liaison (4) qui est elle même fixée rigidement sur la pièce d'ancrage (3). Au cours de la montée suivant la flèche f le ballon principal (1) se trouve sous le vent du ballon secondaire (5) et donc dans son sillage turbulent. De plus le système des deux ballons présente une axe privilégié de symétrie favorisant la stabilité aérodynamique en montée. Au fur et à mesure que la pression diminue le volume des deux ballons augmente dans les mêmes proportions ce qui leur donne toujours la même configuration géométrique et aérodynamique à une homothétie près . La figure 2 représente le dispositif du système d' ancrage selon 1 ' invention. Les deux pièces le constituant sont avantageusement prises en matériau de type mousse à la fois rigide et deformable et elles sont notées (7) pour la pièce extérieure au ballon principal et ( 8) pour la pièce intérieure. L ' enveloppe (11) du ballon principal est interposée entre les deux. La pièce (7) a la forme d'un cylindre de diamètre extérieur D et elle est percée suivant son axe d'un cylindre de diamètre intérieur d. La pièce (8) a la forme d'un cylindre d'un diamètre très voisin de d de telle sorte qu'elle puisse coulisser dans le cylindre intérieur de (7). A l'extrémité inférieure de (7) un collier de serrage (10) placé dans une gorge (9) creusée dans (7) permet en jouant sur la déformation du matériau de (7) de diminuer le diamètre du cylindre intérieur de ( ) de telle sorte que la pièce cylindrique ( 8 ) vienne en butée à travers l'enveloppe (11) du ballon principal sur la partie inférieure de (7 ) . De façon pratique le montage se fait comme suit: la pièce (8) est d'abord introduite dans le ballon principal par son orifice de gonflage puis enfoncée dans (7 ) de telle sorte que 1 'enveloppe (11) du ballon s ' interpose entre les deux pièces . On serre alors le collier (10) de telle sorte que (8) qui est tirée vers 1 ' intérieur du ballon par les forces de tension élastiques de l'enveloppe (11) dès que le ballon principal est suffisamment rempli de gaz vienne se plaquer sur l'extrémité inférieure et retrécie de (7). Au fur et à mesure que le ballon principal augmente de volume en montant les forces de tension F de l'enveloppe (11) assurent d'une part la liaison entre les pièces (7) et (8) ainsi que d'autre part l'appui de (7) sur le pôle supérieur du ballon. Il sera judicieux de prévoir une embase S de (7) de surface suffisamment importante pour assurer à la fois la rigidité de l'ancrage sur le pôle du ballon et des contraintes mécaniques sur l'enveloppe faibles. La figure 3 représente à titre d'exemple non limitatif une coupe du système de liaison du ballon secondaire et de sa fixation sur le système d'ancrage. Il est constitué essentiellement de deux pièces en matériau rigide et deformable de type mousse.La première pièce(13) est un cylindre de diamètre extérieur D qui est percé suivant son axe d'un cylindre intérieur de diamètre d. Elle possède une gorge (15) dans laquelle se trouve un collier de serrage (16).Dans cette pièce peut coulisser la seconde pièce cylindrique (14) de diamètre 10 extérieur d. (14) peut être bloquée sur (13) par le collier de serrage (16). Le ballon secondaire (5) dont l'enveloppe est (12) est, préalablement au lâcher, gonflé à un certain volume et il est rendu solidaire de la pièce (13) au moyen d'un fil (20) qui passe à travers le cylindre (14). Ce fil (20) qui est accroché par une extrémité au tube de remplissage (24) du ballon (5) passe au travers d'un disque (21) par un orifice (25). Il se termine par un noeud (22) de diamètre supérieur à celui de l'orifice (25). Le disque (21) de diamètre légèrement inférieur à d vient en butée sur le fond de ( 1 ) , la liaison se faisant à travers les forces d'élasticité du ballon et de son embout (24). Le montage s'effectue de la manière suivante: Les pièces (13) et (14) n'étant pas encore solidaires par le serrage de (16), on tire la pièce(14) vers le bas de manière à assurer, le fil (20) n'étant pas extensible, un bon appui élastique de l'enveloppe 30 (12) du ballon (5) sur la face supérieure (19) de (13) et on bloque ensuite (13) par rapport à (14) au moyen du collier de serrage (16). On fait alors pénétrer la pièce (14) dans le cylindre intérieur de (7) et on la bloque sur la pièce ( 7 ) au moyen d ' un collier de serrage (18) passant dans une gorge (17) faite sur la partie supérieure de (7 ) . Au moyen des pièces ( 7 ) et ( 8 ) formant le bloc d'ancrage 35 (3) et des pièces (13) et (14) formant le bloc de liaison (4) le ballon secondaire est alors solidaire de façon semi-rigide du 5 ballon principal à travers les forces élastiques de 1 ' enveloppe.With reference to these drawings, the anchoring piece (3) is fixed in a semi-rigid manner to the upper pole of the main balloon (1) under which is conventionally hung by a wire (6) an aerological measurement nacelle (2 ). The secondary balloon (5) is integral with a connecting piece (4) which is itself rigidly fixed on the anchoring piece (3). During the climb along arrow f the main balloon (1) is downwind of the secondary balloon (5) and therefore in its turbulent wake. In addition, the system of two balloons has a privileged axis of symmetry promoting aerodynamic stability when climbing. As the pressure decreases the volume of the two balloons increases in the same proportions which always gives them the same geometrical and aerodynamic configuration except for homothety. FIG. 2 represents the device of the anchoring system according to the invention. The two parts constituting it are advantageously made of foam-type material that is both rigid and deformable and they are noted (7) for the part external to the main balloon and (8) for the internal part. The envelope (11) of the main balloon is interposed between the two. The part (7) has the shape of a cylinder of outside diameter D and it is pierced along its axis with a cylinder of inside diameter d. The part (8) has the shape of a cylinder with a diameter very close to d so that it can slide in the inner cylinder of (7). At the lower end of (7) a clamp (10) placed in a groove (9) hollowed out in (7) allows by playing on the deformation of the material of (7) to reduce the diameter of the inner cylinder of () so that the cylindrical part (8) abuts through the casing (11) of the main balloon on the lower part of (7). In practice, the assembly is done as follows: the part (8) is first introduced into the main balloon through its inflation orifice then pressed into (7) so that the envelope (11) of the balloon is interposed between the two rooms. The collar (10) is then tightened so that (8) which is pulled towards the interior of the balloon by the elastic tension forces of the envelope (11) as soon as the main balloon is sufficiently filled with gas comes to be pressed on the lower end and shrunk from (7). As the main balloon increases in volume by mounting the tension forces F of the envelope (11) on the one hand ensure the connection between the parts (7) and (8) and on the other hand l 'support (7) on the upper pole of the ball. It will be wise to provide a base S of (7) with a sufficiently large surface area to ensure both the rigidity of the anchoring on the pole of the balloon and low mechanical stresses on the envelope. Figure 3 shows by way of non-limiting example a section of the secondary balloon connection system and its attachment to the anchoring system. It consists essentially of two parts made of rigid and deformable foam-type material. The first part (13) is a cylinder of outside diameter D which is pierced along its axis with an inside cylinder of diameter d. It has a groove (15) in which there is a clamp (16). In this part can slide the second cylindrical part (14) of outside diameter d. (14) can be locked on (13) by the clamp (16). The secondary balloon (5) whose envelope is (12) is, prior to release, inflated to a certain volume and it is made integral with the part (13) by means of a wire (20) which passes through the cylinder (14). This wire (20) which is hooked by one end to the filling tube (24) of the balloon (5) passes through a disc (21) through an orifice (25). It ends with a knot (22) of diameter greater than that of the orifice (25). The disc (21) of diameter slightly less than d abuts on the bottom of (1), the connection being made through the elastic forces of the balloon and its end piece (24). The assembly is carried out in the following manner: The parts (13) and (14) not yet being integral by the tightening of (16), the part (14) is pulled down so as to ensure, the wire (20) not being extensible, a good elastic support of the envelope 30 (12) of the balloon (5) on the upper face (19) of (13) and then we block (13) relative to (14) by means of the clamp (16). The part (14) is then made to penetrate into the internal cylinder of (7) and it is blocked on the part (7) by means of a clamp (18) passing through a groove (17) made on the part. superior of (7). By means of parts (7) and (8) forming the anchor block 35 (3) and parts (13) and (14) forming the connection block (4) the secondary balloon is then rigidly secured of the main balloon through the elastic forces of the envelope.
Selon une variante de 1 ' invention la pièce d'ancrage (3) peut être utilisée pour le passage de fils électriques à travers le ballon entre le pôle supérieur et la nacelle de mesure inférieure (2) qui est accrochée en dessous . A cette fin et suivant la figure 4 qui représente en coupe le dispositif suivant l'invention- des fils électriques (29a) et (29b) en provenance de la nacelle (2) passent à l'intérieur d'une gaine cylindrique (28) qui traverse d'abord la pièce (8) à travers un conduit cylindrique (29) percé à cet effet et ensuite l'enveloppe (11) du ballon principal à travers un trou (30). Le diamètre du trou (30) a été choisi suffisamment petit pour que l'enveloppe (11), 20 qui n'est pratiquement pas soumise aux forces de tension liées à l'augmentation du volume du ballon en raison du serrage de (11) entre (7) et (8) dans la région resserrée par le collier (10), adhère parfaitement sur le conduit (28) de manière à minimiser les fuites à 1 ' extérieur du gaz contenu dans le ballon principal. Toujours pour minimiser ces fuites un matériau souple assurant 1 ' étanchéite sera intercalé entre les fils (29a) et (29b) et la paroi intérieure de (28) . Le conduit (28) est ensuite fixé rigidement à un cylindre (26) de diamètre extérieur d qui est solidaire de la pièce (7). Les fils (29a) et (29b) passent ensuite à travers des mâts (31) et (32) et arrivent à des capteurs de température (33) et d'humidité (34). Les mats sont fixés à la pièce (7) et leur longueur sera 35 choisie assez grande pour que les capteurs (33) et (34) ne se trouvent pas dans le sillage du ballon secondaire. Il reste bien évident qu'au moyen d'un collier (18) et suivant la figure 3 , la pièce (7 ) peut en même temps être rendue solidaire d'un bloc de liaison fixé à un 5 ballon secondaire servant à augmenter la stabilité du ballon principal. According to a variant of the invention, the anchoring piece (3) can be used for the passage of electrical wires through the balloon between the upper pole and the lower measurement nacelle (2) which is hung below. To this end and according to Figure 4 which shows in section the device according to the invention - electrical wires (29a) and (29b) coming from the nacelle (2) pass inside a cylindrical sheath (28) which first crosses the part (8) through a cylindrical conduit (29) pierced for this purpose and then the envelope (11) of the main balloon through a hole (30). The diameter of the hole (30) was chosen small enough for the envelope (11), which is practically not subjected to the tension forces linked to the increase in the volume of the balloon due to the tightening of (11) between (7) and (8) in the region constricted by the collar (10), adheres perfectly to the conduit (28) so as to minimize leaks to one outside of the gas contained in the main balloon. Always to minimize these leaks, a flexible material ensuring the seal will be interposed between the wires (29a) and (29b) and the interior wall of (28). The conduit (28) is then rigidly fixed to a cylinder (26) of outside diameter d which is integral with the part (7). The wires (29a) and (29b) then pass through masts (31) and (32) and arrive at temperature (33) and humidity (34) sensors. The masts are fixed to the part (7) and their length will be chosen large enough for the sensors (33) and (34) are not in the wake of the secondary balloon. It remains quite obvious that by means of a collar (18) and according to FIG. 3, the part (7) can at the same time be made integral with a connection block fixed to a secondary balloon serving to increase the stability of the main balloon.

Claims

REVENDICATIONS
1-) Dispositif d'ancrage semi-rigide de un ou plusieurs éléments sur un ballon météorologique de type fermé et en matériau dilatable qui se caractérise par le fait que le système d'ancrage est constitué de deux pièces cylindriques de même axe en matériau de type mousse à la fois rigide et deformable, lesdites pièces cylindriques pouvant se déplacer l'une par rapport à l'autre et étant séparées par l'enveloppe du ballon, enveloppe qui de par sa tension élastique amène en butée sur un resserrement de la pièce cylindrique extérieure au ballon la pièce cylindrique intérieure et en même temps plaque la pièce cylindrique extérieure sur le pôle du ballon, le dispositif assurant en même temps 1 ' auto-limitation des contraintes mécaniques sur l'enveloppe du ballon.1-) Semi-rigid anchoring device of one or more elements on a meteorological balloon of the closed type and of expandable material which is characterized by the fact that the anchoring system consists of two cylindrical pieces of the same axis made of foam type which is both rigid and deformable, said cylindrical parts being able to move relative to one another and being separated by the envelope of the balloon, an envelope which by its elastic tension brings into abutment a tightening of the part cylindrical external to the balloon the internal cylindrical part and at the same time presses the external cylindrical part on the pole of the balloon, the device ensuring at the same time the self-limitation of the mechanical stresses on the envelope of the balloon.
2-) Dispositif suivant la revendication 1 servant à fixer sur un ballon de sondage météorologique dit ballon principal et au pôle supérieur de celui-ci un ballon secondaire lui aussi fermé de manière à augmenter la stabilité dynamique du ballon principal en cours de montée.2-) Device according to claim 1 for fixing on a meteorological survey balloon said main balloon and the upper pole thereof a secondary balloon also closed so as to increase the dynamic stability of the main balloon during climb.
3-) Dispositif suivant les revendications 1, et 2 caractérisé par le fait qu'il assure la fixation du ballon principal et celle du ballon secondaire aux deux extrémités d'une même pièce semi-rigide de manière à les rendre solidaires l'un de l'autre.3-) Device according to claims 1, and 2 characterized in that it ensures the fixing of the main balloon and that of the secondary balloon at the two ends of the same semi-rigid part so as to make them integral one of the other.
4-) Dispositif suivant les revendications 1, 2, 3, caractérisé par le fait que la pièce utilisant le système d'ancrage peut servir au passage de fils électriques à travers 1 ' enveloppe du ballon principal et ce dans la région où les contraintes de tension sur 1 ' enveloppe du-dit ballon sont les plus faibles .4-) Device according to claims 1, 2, 3, characterized in that the part using the anchoring system can be used for the passage of electrical son through one envelope of the main balloon and this in the region where the tension stresses on the envelope of said balloon are the lowest.
5-) Dispositif suivant les revendications 1, 2, 3, et 4 caractérisé par le fait que les fils électriques traversant 1 ' enveloppe au niveau de la pièce d'ancrage servent à transmettre les informations délivrées par des capteurs aérologiques tels que température ou humidité placés en amont du ballon principal et donc en dehors de toutes les perturbations dues au sillage aérodynamique. 5-) Device according to claims 1, 2, 3, and 4 characterized in that the electrical wires passing through the envelope at the level of the anchoring part serve to transmit the information delivered by aerological sensors such as temperature or humidity placed upstream of the main balloon and therefore outside of all disturbances due to the aerodynamic wake.
PCT/FR1997/000767 1996-07-10 1997-04-30 Multipurpose anchoring piece for meteorological balloons WO1998001774A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR96/08584 1996-07-10
FR9608584A FR2762400A1 (en) 1996-07-10 1996-07-10 MULTI-PURPOSE ANCHORING PIECE FOR WEATHER BALLOONS

Publications (1)

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WO1998001774A1 true WO1998001774A1 (en) 1998-01-15

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PCT/FR1997/000767 WO1998001774A1 (en) 1996-07-10 1997-04-30 Multipurpose anchoring piece for meteorological balloons

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FR (1) FR2762400A1 (en)
WO (1) WO1998001774A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106597572A (en) * 2016-12-07 2017-04-26 中国化工株洲橡胶研究设计院有限公司 Double-handled meteorological balloon and air sounding combination balloon

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475839A (en) * 1948-07-30 1949-07-12 Dewey And Almy Chem Comp Balloon for tandem flight and method of flying meteorological balloons
US2758803A (en) * 1954-08-19 1956-08-14 Winzen Res Inc Balloon
US2779554A (en) * 1954-11-03 1957-01-29 Gen Mills Inc Balloon and fitting for securing balloon ends
US2990147A (en) * 1956-03-21 1961-06-27 Gen Mills Inc Balloon load attachment fitting

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475839A (en) * 1948-07-30 1949-07-12 Dewey And Almy Chem Comp Balloon for tandem flight and method of flying meteorological balloons
US2758803A (en) * 1954-08-19 1956-08-14 Winzen Res Inc Balloon
US2779554A (en) * 1954-11-03 1957-01-29 Gen Mills Inc Balloon and fitting for securing balloon ends
US2990147A (en) * 1956-03-21 1961-06-27 Gen Mills Inc Balloon load attachment fitting

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106597572A (en) * 2016-12-07 2017-04-26 中国化工株洲橡胶研究设计院有限公司 Double-handled meteorological balloon and air sounding combination balloon
CN106597572B (en) * 2016-12-07 2019-12-13 中国化工株洲橡胶研究设计院有限公司 Double-handle meteorological balloon and high-altitude detection combined balloon

Also Published As

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