EP0015177A1 - Per Flugzeug abwerfbare Boje mit Aerodynamischer- und Trägheitsauslösung - Google Patents

Per Flugzeug abwerfbare Boje mit Aerodynamischer- und Trägheitsauslösung Download PDF

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Publication number
EP0015177A1
EP0015177A1 EP80400140A EP80400140A EP0015177A1 EP 0015177 A1 EP0015177 A1 EP 0015177A1 EP 80400140 A EP80400140 A EP 80400140A EP 80400140 A EP80400140 A EP 80400140A EP 0015177 A1 EP0015177 A1 EP 0015177A1
Authority
EP
European Patent Office
Prior art keywords
mechanisms
plunger
buoy
shovels
balloon
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
EP80400140A
Other languages
English (en)
French (fr)
Other versions
EP0015177B1 (de
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
Thomson CSF Scpi
Original Assignee
Thomson CSF Scpi
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 Scpi, Thomson CSF SA filed Critical Thomson CSF Scpi
Publication of EP0015177A1 publication Critical patent/EP0015177A1/de
Application granted granted Critical
Publication of EP0015177B1 publication Critical patent/EP0015177B1/de
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 specifically to sound radio buoys, which are intended, once in the water, to transmit various submarine parameters and information by radio, 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.
  • Z1 is known to use a balloon as a float. This balloon inflates during the fall and once arrived on the water, the air is trapped in the balloon and ensures the buoyancy of the buoy.
  • 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 comes off at the start of the fall, which does not guarantee 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 to lock a system for detaching the container in which the hydrophone and the cable reel, the buoy additionally comprising an inertia release device for detaching the container during water impact, which descends rapidly 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 hydraphane, dropable from an aircraft into the water, comprising two separable parts, an upper part containing the electronics associated with a transmission antenna and to a hydrophone capturing sound waves in water, and supporting 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 lifting of openings in the form of shovels located at the base of the balloon, a lower part or “plunger” containing the hydrophone and its coil of coiled 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 controlled by the lifting of the shovels and second mechanisms controlled by inertial triggering, the operation of these mechanisms not being simultaneous.
  • Figure 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 the balloon 5, articulated shovels 18 which allow the forced inflation of the balloon.
  • These shovels are mounted by a fastener 1, the rods 2 whose function is to release the cover 5 and to unlock the mechanism sé - rity of the container 14, which is the hydrophone and the cable reel.
  • 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 launched from an airplane, for example, 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 that can be submerged to depths of up to 2,000 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)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Catching Or Destruction (AREA)
  • Toys (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Insulated Conductors (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
EP80400140A 1979-02-27 1980-01-29 Per Flugzeug abwerfbare Boje mit Aerodynamischer- und Trägheitsauslösung Expired EP0015177B1 (de)

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 true EP0015177A1 (de) 1980-09-03
EP0015177B1 EP0015177B1 (de) 1982-09-29

Family

ID=9222498

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400140A Expired EP0015177B1 (de) 1979-02-27 1980-01-29 Per Flugzeug abwerfbare Boje mit Aerodynamischer- und Trägheitsauslösung

Country Status (10)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218950A (en) * 1988-05-26 1989-11-29 Secr Defence Brit An air descent control and flotation device
CN111362090A (zh) * 2020-04-03 2020-07-03 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

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2094667A5 (de) * 1970-06-29 1972-02-04 Cit Alcatel
US3646505A (en) * 1970-03-18 1972-02-29 Naval Air Systems Command Usa Automatically deployable sonobuoy
FR2315428A1 (fr) * 1975-06-26 1977-01-21 Cit Alcatel Bouee acoustique largable d'avion
US4029233A (en) * 1973-03-29 1977-06-14 Sparton Corporation Sonobuoy retainer plate
US4033529A (en) * 1976-02-27 1977-07-05 Sanders Associates, Inc. Drogue release apparatus
FR2431413A1 (fr) * 1978-07-17 1980-02-15 Deere & Co Tracteur a faible rayon de braquage

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3889224A (en) * 1974-03-08 1975-06-10 Us Navy Crown float/decelerator
US4186374A (en) * 1978-01-03 1980-01-29 Raytheon Company Transducer housing with release mechanism

Patent Citations (6)

* 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 (de) * 1970-06-29 1972-02-04 Cit Alcatel
US4029233A (en) * 1973-03-29 1977-06-14 Sparton Corporation Sonobuoy retainer plate
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
FR2431413A1 (fr) * 1978-07-17 1980-02-15 Deere & Co Tracteur a faible rayon de braquage

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218950A (en) * 1988-05-26 1989-11-29 Secr Defence Brit An air descent control and flotation device
GB2218950B (en) * 1988-05-26 1992-09-30 Secr Defence Brit An air descent control and flotation device
CN111362090A (zh) * 2020-04-03 2020-07-03 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

Also Published As

Publication number Publication date
US4295211A (en) 1981-10-13
FR2450193B1 (de) 1982-02-05
NO800543L (no) 1980-08-28
NO152203C (no) 1985-08-21
NO152203B (no) 1985-05-13
FR2450193A1 (fr) 1980-09-26
CA1130144A (en) 1982-08-24
EP0015177B1 (de) 1982-09-29
AU524817B2 (en) 1982-10-07
AU5488080A (en) 1980-09-04
ES8100192A1 (es) 1980-11-01
BR8001121A (pt) 1980-11-04
DE3060884D1 (en) 1982-11-11
ES488934A0 (es) 1980-11-01
AR226299A1 (es) 1982-06-30

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