EP1000312A1 - Munition de contre mesure - Google Patents
Munition de contre mesureInfo
- Publication number
- EP1000312A1 EP1000312A1 EP99922246A EP99922246A EP1000312A1 EP 1000312 A1 EP1000312 A1 EP 1000312A1 EP 99922246 A EP99922246 A EP 99922246A EP 99922246 A EP99922246 A EP 99922246A EP 1000312 A1 EP1000312 A1 EP 1000312A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hollow
- charges
- ammunition according
- ammunition
- charge
- 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
Links
- 231100000518 lethal Toxicity 0.000 claims abstract description 15
- 230000001665 lethal effect Effects 0.000 claims abstract description 15
- 239000002360 explosive Substances 0.000 claims description 28
- 230000006378 damage Effects 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000011344 liquid material Substances 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 238000005474 detonation Methods 0.000 description 9
- 238000010304 firing Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000016571 aggressive behavior Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000251169 Alopias vulpinus Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000251729 Elasmobranchii Species 0.000 description 1
- 108010014172 Factor V Proteins 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000135 prohibitive effect Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G7/00—Mine-sweeping; Vessels characterised thereby
- B63G7/02—Mine-sweeping means, Means for destroying mines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
- F42B12/04—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type
- F42B12/10—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type with shaped or hollow charge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
- F42B12/04—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type
- F42B12/10—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type with shaped or hollow charge
- F42B12/16—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type with shaped or hollow charge in combination with an additional projectile or charge, acting successively on the target
- F42B12/18—Hollow charges in tandem arrangement
Definitions
- the invention relates to the field of countermeasures ammunition, in particular but not exclusively ammunition intended for the destruction or neutralization of weapons containing very insensitive explosives such as underwater mines.
- Such ammunition can be torpedoes, underwater vehicles, guided or autonomous, ammunition installed directly by deminers or more generally demining systems.
- SEAFOX An example of such a demining system is known under the designation of SEAFOX.
- This system consists of a wire-guided underwater vehicle which will be placed near the mine. It carries a hollow charge which through its perforation capacity will, with its jet, cross the mine. This aggression is generally likely to render the mine inoperative. This is a first level of efficiency, but we know that mine hunters want to see the sonar echo of the mine disappear, which means breaking up into small pieces. Such an effect is obtained when the jet of the hollow charge has the capacity during its penetration into the explosive charge of the mine, to create a shock whose energy is sufficient to cause the almost immediate detonation thereof.
- the object of the present invention is to increase the efficiency of a countermeasure munition at constant volume. It aims in particular:
- the invention relates to a countermeasure ammunition comprising a lethal system having an axis of attack, characterized in that it comprises at least three hollow charges whose longitudinal axes are concurrent and angularly distributed around the axis of attack, each hollow charge being intended to produce a jet of hollow charge acting concomitantly in an area of a target, the area being defined by the intersection with the target of the cone containing the concurrent axes of the hollow charges and centered on the axis of attack.
- the invention also relates to the use of ammunition as an underwater vehicle for the destruction of submerged mines.
- the simultaneous action of the jets of these hollow charges is intended to cause: - a perforation of the structures and envelopes of the target after crossing the medium separating the ammunition from the target at the time of operation, for example the medium can to be water,
- FIG. 1a shows a sectional view of an ammunition of the underwater vehicle type according to the prior art, equipped with a lethal system with a single hollow charge in the attack position with respect to a moored mine .
- Figure 1b is a sectional view of the mode of action of the jet of the hollow charge of the ammunition shown in Figure 1a on the explosive of a mine.
- FIG. 2a and 2b a first embodiment of a multi-charge hollow ammunition according to the invention.
- Figure 2c a sectional view of the mode of action of the jets of the hollow charges of the ammunition shown in Figures 2a and 2b.
- FIG. 3a and 3b a second embodiment of a hollow multi-charge munition according to the invention.
- FIG. 4a and 4b an embodiment of a synchronous pyrotechnic distributor usable for firing the embodiment of Figures 2a and 2b.
- the ammunition is placed in the attack position in front of a ruddy mine 1.
- the rut mine 1 is kept immersed in water by a rope 2 attached to a toad or base 3.
- a shell 4 often made of steel, constitutes the float of the mine and inside, a tank 5 contains the explosive charge 6.
- the mine also includes detection means 7 connected to a firing device 8.
- the munition which bears the reference 9 in FIG. 1 a consists of a vehicle 10 and a lethal system in the form of a hollow charge comprising a coating 11, an explosive charge 12, a lateral confinement 13, a safety and ignition system 14.
- a dead volume 15 is generally necessary for the proper functioning of the hollow charge.
- the ammunition 9 can operate the shaped charge without being in contact with the mine.
- the firing of the hollow charge causes, schematically in FIG. 1b, the explosion of the explosive charge 12 which transforms the coating 11 into a jet 16 animated at a speed of several km / s. This speed allows the jet to hydrodynamically pass through the steel walls of the shell 4 and of the reservoir 5 to reach the explosive charge 6.
- the jet 16 by creating a crater in the explosive charge 6 of the mine 1 generates a shock wave which develops zone 17 under very strong pressure. If the pressure in the zone 17 is high enough over a sufficient area, the criterion V 2 d is satisfied and the explosive charge 6 is detonated, which pulverizes the mine 1.
- the lethal system is composed of three hollow charges 18a, 18b, 18c equally distributed around the axis of attack (00 ') of the lethal system.
- These hollow charges are arranged in the directions of three planes at 120 ° and their longitudinal axes X'X, are concurrent forward at a point ⁇ of the axis 00 'whose adjustment is predetermined according to the distance d ammunition attack.
- the three hollow charges are identical, they are constituted in a similar manner to that shown in FIG. 1a, of a coating 11, of an explosive charge 12, of a confinement 13 and of a system.
- the coating 11 is for example made of copper, but other types of material such as aluminum or synthetic products (teflon, etc.) or liquid products (water, etc.) are of interest for the application. It is important that the ignition system 19 guarantees good simultaneity of operation of the hollow charges to allow the effects sought by the invention as described.
- the firing system 19 can be a known electronic device which simultaneously initiates three detonator primers with a projected layer 20.
- Another embodiment can consist of a pyrotechnic distributor which from a single detonator will simultaneously propagate the detonation towards the hollow charges.
- Figure 2c shows after the explosion of the shaped charges 18a, 18b, 18c, the interaction of the jets 16 on the mine explosive.
- Each of the jets develops around the crater which it creates, a zone 17 of overpressure, the zone 17 being defined by the intersection with the target 14 of the cone containing the concurrent axes XX 'of the hollow charges and centered on the axis of attack 00 '.
- the zones of overpressure by joining together confine each other and create a surface, subjected to a significant pressure, greater than the sum of the three individual surfaces.
- FIGs 3a and 3b show a second embodiment of the lethal system according to the invention.
- the hollow charges are placed one behind the other slightly offset in 3 planes at 120 ° and their axes of revolution X'X are concurrent at a point ⁇ , located at the front of the system , whose position is predetermined according to the attack conditions of the munition.
- the firing system 19 controls the initiator of the detonator primers with projected layers 20 of each hollow charge according to a chronology such that the heads of the jets, preferably homokinetic, simultaneously attack the explosive charge of the mine.
- the ignition systems 19 of each of the shaped charges can be advantageously replaced by a single firing system produced in the form of the synchronous pyrotechnic distributor shown in FIGS. 4a and 4b.
- This comprises an input pyrotechnic relay 21 which is placed in communication with each of the explosive charges by relays 22 through conduits 23.
- the relay 21 is initialized by a primer, the detonation produced propagates through a pyrotechnic network formed by the conduits 23 into which is injected for example an explosive with thermosetting binder.
- the latter have a length which is determined to maintain symmetry in the paths of the detonation waves and lead to a simultaneous emergence of the detonation at the output of the relays 22.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Geophysics And Detection Of Objects (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Air Bags (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9807241A FR2779514B1 (fr) | 1998-06-09 | 1998-06-09 | Munition de contre mesure |
| FR9807241 | 1998-06-09 | ||
| PCT/FR1999/001283 WO1999064812A1 (fr) | 1998-06-09 | 1999-06-01 | Munition de contre mesure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1000312A1 true EP1000312A1 (fr) | 2000-05-17 |
| EP1000312B1 EP1000312B1 (fr) | 2003-10-08 |
Family
ID=9527183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99922246A Expired - Lifetime EP1000312B1 (fr) | 1998-06-09 | 1999-06-01 | Munition de contre mesure |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1000312B1 (fr) |
| DE (1) | DE69911884T2 (fr) |
| DK (1) | DK1000312T3 (fr) |
| ES (1) | ES2209435T3 (fr) |
| FR (1) | FR2779514B1 (fr) |
| WO (1) | WO1999064812A1 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6540175B1 (en) * | 2001-12-03 | 2003-04-01 | Lockheed Martin Corporation | System for clearing buried and surface mines |
| DE102010051491A1 (de) * | 2010-11-15 | 2012-05-16 | Atlas Elektronik Gmbh | Unterwasserfahrzeug und Unterwassersystem mit einem Unterwasserfahrzeug |
| DE102018214824A1 (de) * | 2018-08-31 | 2020-03-05 | Atlas Elektronik Gmbh | Räumgerät und Verfahren zum Neutralisieren eines Kampfmittels unter Wasser |
| DE102019213944A1 (de) | 2019-09-12 | 2021-03-18 | Atlas Elektronik Gmbh | Unterwasserfahrzeug mit zwei hintereinander angeordneten Hohlladungen |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3880103A (en) * | 1972-08-21 | 1975-04-29 | Us Navy | Tethered mine hunting system |
| DE2829002C2 (de) * | 1978-07-01 | 1985-04-04 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Gefechtskopf |
| DE2829001C2 (de) * | 1978-07-01 | 1983-09-22 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Gefechtskopf mit einem Hauptwirkkörper und einem oder mehreren Nebenwirkkörpern |
| DE3010917C2 (de) * | 1980-03-21 | 1984-03-01 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Gefechtskopf mit einer Haupthohlladung und mindestens einer Vorhohlladung |
| DE3626434C3 (de) * | 1986-08-05 | 1994-10-20 | Diehl Gmbh & Co | Verfahren und Einrichtung zum Vernichten großvolumiger Seegrundminen |
| DE3739370A1 (de) * | 1987-11-20 | 1989-06-01 | Diehl Gmbh & Co | Bomblet-gefechtskopf |
| DE19543757C2 (de) * | 1995-11-24 | 1997-09-04 | Diehl Gmbh & Co | Verfahren zur Bekämpfung von Seeminen |
-
1998
- 1998-06-09 FR FR9807241A patent/FR2779514B1/fr not_active Expired - Fee Related
-
1999
- 1999-06-01 DK DK99922246T patent/DK1000312T3/da active
- 1999-06-01 ES ES99922246T patent/ES2209435T3/es not_active Expired - Lifetime
- 1999-06-01 WO PCT/FR1999/001283 patent/WO1999064812A1/fr not_active Ceased
- 1999-06-01 EP EP99922246A patent/EP1000312B1/fr not_active Expired - Lifetime
- 1999-06-01 DE DE69911884T patent/DE69911884T2/de not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9964812A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2779514B1 (fr) | 2001-01-26 |
| DE69911884D1 (de) | 2003-11-13 |
| DK1000312T3 (da) | 2004-02-09 |
| DE69911884T2 (de) | 2004-09-09 |
| EP1000312B1 (fr) | 2003-10-08 |
| ES2209435T3 (es) | 2004-06-16 |
| WO1999064812A1 (fr) | 1999-12-16 |
| FR2779514A1 (fr) | 1999-12-10 |
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