EP0015177B1 - Bouée aéroportée largable à déclenchements aérodynamique et inertiel - Google Patents

Bouée aéroportée largable à déclenchements aérodynamique et inertiel Download PDF

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Publication number
EP0015177B1
EP0015177B1 EP80400140A EP80400140A EP0015177B1 EP 0015177 B1 EP0015177 B1 EP 0015177B1 EP 80400140 A EP80400140 A EP 80400140A EP 80400140 A EP80400140 A EP 80400140A EP 0015177 B1 EP0015177 B1 EP 0015177B1
Authority
EP
European Patent Office
Prior art keywords
buoy
mechanisms
float
hydrophone
shovels
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
Application number
EP80400140A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0015177A1 (fr
Inventor
Vito Suppa
Daniel Viallet
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Publication of EP0015177A1 publication Critical patent/EP0015177A1/fr
Application granted granted Critical
Publication of EP0015177B1 publication Critical patent/EP0015177B1/fr
Expired 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 
    • B63B22/00—Buoys
    • B63B22/003—Buoys adapted for being launched from an aircraft or water vehicle;, e.g. with brakes deployed in the water
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/004—Mounting transducers, e.g. provided with mechanical moving or orienting device
    • G10K11/006—Transducer mounting in underwater equipment, e.g. sonobuoys

Definitions

  • the present invention relates to buoys which are dropped from an aircraft and more particularly to sound radiobikes, which are intended once in the water, to transmit radio-electrically various parameters and underwater information, detected by acoustic receivers.
  • These radio buoys generally include a float provided with an antenna as well as a hydrophone which, attached to the float descends to a certain depth to detect acoustic noise. The hydrophone's electrical signals are processed and applied to the radio antenna.
  • the balloon Before the fall the balloon is contained in a cover, which must come off at the start of this fall.
  • a releasable airborne buoy comprising a balloon which inflates during the fall ensures the buoyancy of the buoy on the water.
  • the balloon inflates during the fall by a forced entry of air at the base of the balloon and inside the balloon there is a membrane of flexible material which can block the air inlet or outlet holes of the balloon , the pressure of the balloon thus being equal to the maximum dynamic pressure of the air during the fall.
  • the cover is not fixed to the device and it detaches at the start of the fall, which does not ensure certain operation, the cover being able to cause damage.
  • the descent is slow and therefore it takes quite a long time before the buoy is operational.
  • the descent is faster if the coil is faired, but the volume available for the cable is less, which reduces the depth that the hydrophone can reach.
  • the movement of the shovels is used according to the invention to release the cover and unlock a system for detaching the container in which the hydrophone and the cable reel is located, the buoy additionally comprising a device for inertial release to detach the container on impact with water, which quickly descends into the water thanks to its fairing.
  • the device according to the invention has the advantage that the lower part detaches entirely, which makes it possible to use a larger volume than in the prior art. As a result, it is possible to accommodate a length of cable for depths up to 2000 meters.
  • a radioelectric buoy comprising a hydrophone which can be dropped from an aircraft into the water, comprising two separable parts, an upper part containing the electronics associated with a transmission antenna and a hydrophone that detects sound waves in water and supports a floating balloon protected by a cover, the balloon inflating during the fall of the buoy by means of a forced air inlet established by the opening lift in shape of shovels, located at the base of the balloon, a lower part or "plunger” containing the hydrophone and its coil of wound suspension cable, the hydrophone can be submerged at depths up to 2000 meters, characterized in that the upper part of the buoy comprises first mechanisms, simultaneously for releasing the cover and unlocking the lower part, these mechanisms being controlled by the lifting of the shovels and second mechanics release smes of the lower part controlled by inertial triggering, the operation of these mechanisms not being simultaneous.
  • FIG 1 shows a general exterior view of the buoy according to the invention, which comprises mounted on the body of this buoy, the protective cover of balloon 5, articulated shovels 18 which allow the forced inflation of the balloon. On these shovels are mounted by a fixing 1, rods 2 whose role is to release the cover 5 and unlock the safety mechanism of the container 14, in which the hydrophone and the cable reel are located.
  • the container will be called a diver later.
  • Figure 2 shows the device in the rest position before dropping the buoy. According to a characteristic of the invention, the tilting of shovels upwards when the buoy is released, on the one hand unlocks an inertia flyweight 9, and on the other hand releases the protective cover 5.
  • the buoy being, for example, launched from an airplane, its fall causes the shovels 18 to lift under the action of air.
  • this lifting causes a downward movement of the rods 2 and by unlocking, an offset rods 3 under the action of the spring 16.
  • this offset simultaneously causes the axis 8 to be unlocked and the cover to be released by erasing the ends 4.
  • FIG. 3 represents the device in the state obtained which corresponds to the aerial descent of the buoy. With the cover released, the balloon 23 inflates through the holes 22, the air pressure having raised the membrane 21.
  • the radio antenna 20 which is in the balloon 23 is also shown in FIG. 3.
  • water shock is used to drop the plunger into the water.
  • This shock causes a rapid downward movement of the counterweight 9, due to its inertia and the disc 11 allows under the action of the springs 13 to release the plunger 14 by returning the rods 12, the disc being locked in the low position.
  • FIG. 4 represents the device at the time of the impact with water and FIG. 5 gives a transverse view which makes it possible to better understand these mechanisms.
  • inertial tripping movement is inhibited during handling as long as the shovels are not raised, which prevents accidental impacts on the plunger.
  • a jettable buoy comprising a hydrophone which can be submerged to depths of up to 2000 meters.
  • the device is very safe during handling, during the fall and impact, for the antenna, the electronics and the hydrophone part.

Landscapes

  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Multimedia (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Insulated Conductors (AREA)
  • Catching Or Destruction (AREA)
  • Toys (AREA)
EP80400140A 1979-02-27 1980-01-29 Bouée aéroportée largable à déclenchements aérodynamique et inertiel Expired EP0015177B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7905002 1979-02-27
FR7905002A FR2450193A1 (fr) 1979-02-27 1979-02-27 Bouee aeroportee largable a declenchement inertiel

Publications (2)

Publication Number Publication Date
EP0015177A1 EP0015177A1 (fr) 1980-09-03
EP0015177B1 true EP0015177B1 (fr) 1982-09-29

Family

ID=9222498

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400140A Expired EP0015177B1 (fr) 1979-02-27 1980-01-29 Bouée aéroportée largable à déclenchements aérodynamique et inertiel

Country Status (10)

Country Link
US (1) US4295211A (enrdf_load_stackoverflow)
EP (1) EP0015177B1 (enrdf_load_stackoverflow)
AR (1) AR226299A1 (enrdf_load_stackoverflow)
AU (1) AU524817B2 (enrdf_load_stackoverflow)
BR (1) BR8001121A (enrdf_load_stackoverflow)
CA (1) CA1130144A (enrdf_load_stackoverflow)
DE (1) DE3060884D1 (enrdf_load_stackoverflow)
ES (1) ES488934A0 (enrdf_load_stackoverflow)
FR (1) FR2450193A1 (enrdf_load_stackoverflow)
NO (1) NO152203C (enrdf_load_stackoverflow)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218950B (en) * 1988-05-26 1992-09-30 Secr Defence Brit An air descent control and flotation device
FR2725684A1 (fr) * 1994-10-18 1996-04-19 Thomson Csf Bouee aeroportee largable
FR2744870B1 (fr) * 1996-02-13 1998-03-06 Thomson Csf Procede pour controler la navigation d'une antenne acoustique lineaire remorquee, et dispositifs pour la mise en oeuvre d'un tel procede
FR2764160B1 (fr) * 1997-05-27 1999-08-27 Thomson Marconi Sonar Sas Transducteur electrodynamique pour acoustique sous-marine
FR2776161B1 (fr) 1998-03-10 2000-05-26 Thomson Marconi Sonar Sas Antenne d'emission acoustique annulaire demontable
FR2800229B1 (fr) 1999-10-22 2002-04-05 Thomson Marconi Sonar Sas Transducteur acoustique sous-marin a large bande
FR2809580B1 (fr) 2000-05-26 2002-08-30 Thomson Marconi Sonar Sas Transducteur electrodynamique pour acoustique sous-marine
CN101857069B (zh) * 2010-02-24 2012-11-28 中国船舶重工集团公司第七一○研究所 惯性分离接头
FR2995588B1 (fr) 2012-09-18 2015-12-11 Dcns Systeme fonctionnel a changement de milieu air/eau tel que notamment de contre mesure sous marine destine a etre lance notamment a partir d'un batiment de surface
FR3015785B1 (fr) * 2013-12-20 2015-12-25 Thales Sa Antenne omnidirectionnelle compacte pour sonar trempe
CN111362090B (zh) * 2020-04-03 2022-01-14 南京高立工程机械有限公司 一种用于施工升降机的安全系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3646505A (en) * 1970-03-18 1972-02-29 Naval Air Systems Command Usa Automatically deployable sonobuoy
FR2094667A5 (enrdf_load_stackoverflow) * 1970-06-29 1972-02-04 Cit Alcatel
US4029233A (en) * 1973-03-29 1977-06-14 Sparton Corporation Sonobuoy retainer plate
US3889224A (en) * 1974-03-08 1975-06-10 Us Navy Crown float/decelerator
FR2315428A1 (fr) * 1975-06-26 1977-01-21 Cit Alcatel Bouee acoustique largable d'avion
US4033529A (en) * 1976-02-27 1977-07-05 Sanders Associates, Inc. Drogue release apparatus
US4186374A (en) * 1978-01-03 1980-01-29 Raytheon Company Transducer housing with release mechanism
US4225151A (en) * 1978-07-17 1980-09-30 Deere & Company Tractor with large caster angle to improve steering clearance

Also Published As

Publication number Publication date
EP0015177A1 (fr) 1980-09-03
ES8100192A1 (es) 1980-11-01
NO152203C (no) 1985-08-21
CA1130144A (en) 1982-08-24
FR2450193B1 (enrdf_load_stackoverflow) 1982-02-05
ES488934A0 (es) 1980-11-01
AU524817B2 (en) 1982-10-07
US4295211A (en) 1981-10-13
AU5488080A (en) 1980-09-04
DE3060884D1 (en) 1982-11-11
AR226299A1 (es) 1982-06-30
NO152203B (no) 1985-05-13
FR2450193A1 (fr) 1980-09-26
BR8001121A (pt) 1980-11-04
NO800543L (no) 1980-08-28

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