EP1338861A1 - Munition explosive et procédé de neutralisation d'une telle munition explosive - Google Patents
Munition explosive et procédé de neutralisation d'une telle munition explosive Download PDFInfo
- Publication number
- EP1338861A1 EP1338861A1 EP03001897A EP03001897A EP1338861A1 EP 1338861 A1 EP1338861 A1 EP 1338861A1 EP 03001897 A EP03001897 A EP 03001897A EP 03001897 A EP03001897 A EP 03001897A EP 1338861 A1 EP1338861 A1 EP 1338861A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- relay
- combustion
- initiator
- explosive charge
- explosive
- 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
- 239000002360 explosive Substances 0.000 title claims abstract 16
- 238000000034 method Methods 0.000 title claims 3
- 238000009877 rendering Methods 0.000 title 1
- 238000002485 combustion reaction Methods 0.000 claims abstract 10
- 238000005474 detonation Methods 0.000 claims abstract 5
- 230000000977 initiatory effect Effects 0.000 claims abstract 4
- 230000004044 response Effects 0.000 claims abstract 2
- 239000003999 initiator Substances 0.000 claims 8
- 230000037452 priming Effects 0.000 claims 3
- 238000001514 detection method Methods 0.000 claims 2
- 230000004048 modification Effects 0.000 claims 2
- 238000012986 modification Methods 0.000 claims 2
- IDCPFAYURAQKDZ-UHFFFAOYSA-N 1-nitroguanidine Chemical compound NC(=N)N[N+]([O-])=O IDCPFAYURAQKDZ-UHFFFAOYSA-N 0.000 claims 1
- MKWKGRNINWTHMC-UHFFFAOYSA-N 4,5,6-trinitrobenzene-1,2,3-triamine Chemical compound NC1=C(N)C([N+]([O-])=O)=C([N+]([O-])=O)C([N+]([O-])=O)=C1N MKWKGRNINWTHMC-UHFFFAOYSA-N 0.000 claims 1
- 206010053159 Organ failure Diseases 0.000 claims 1
- 239000002131 composite material Substances 0.000 claims 1
- 238000006386 neutralization reaction Methods 0.000 claims 1
- 230000003472 neutralizing effect Effects 0.000 claims 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C9/00—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition
- F42C9/14—Double fuzes; Multiple fuzes
- F42C9/16—Double fuzes; Multiple fuzes for self-destruction of ammunition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C9/00—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition
- F42C9/14—Double fuzes; Multiple fuzes
Definitions
- the technical field of the invention is that of explosive ordnance, i.e. ammunition comprising an explosive charge capable of being initiated by a means boot.
- ammunition covers different products as needed operational: artillery shells, rockets, air / ground bombs, missiles, torpedoes, grenades, mines ...
- the ammunition according to the invention makes it possible to reduce the risk of collateral damage because it is automatically rendered inert when a certain failure is detected or again when a delay has passed.
- the subject of the invention is an explosive munition including an explosive charge capable of being initiated by means of ignition, ammunition characterized in that the explosive charge can have at least two modes of different operation, a detonation regime and a combustion regime, and in that the priming means is likely to control one or the other of the modes of operation in response to a selection order provided by a means of control.
- the priming means may include an initiator as well that at least two relays, a first relay or relay of detonation which is dimensioned so as to ensure a setting detonation of the explosive charge and a second relay or combustion relay, which is sized to ensure combustion of the explosive charge, the means priming also comprising a selection means actuated by the control means and allowing position the initiator next to the first or second relay.
- the explosive charge will for example be a charge composite or a load incorporating at least 10% in mass of a low vulnerability explosive such as oxynitrotriazol, triaminotrinitrobenzene or nitroguanidine.
- a low vulnerability explosive such as oxynitrotriazol, triaminotrinitrobenzene or nitroguanidine.
- the means of selection may include a mobile armament shutter interposed between the initiator and the explosive charge, flap carrying the first and the second relay and susceptible to occupy at least two positions, a priming position in which the shutter interposes the first relay between initiator and load, and a position of neutralization in which the flap interposes the second relay between the initiator and the load.
- the means of selection may include a mobile stage bearing the initiator and allowing to position it opposite first or second relay.
- control means transmitting the selection order can be incorporated into a rocket electronic.
- the ammunition according to the invention may include means ensuring at least one modification of its trajectory, the electronic rocket then being defined to select a combustion operation if the modification order of the trajectory is absent after a predefined duration.
- the ammunition according to the invention may include means detection of a target, the electronic rocket then being set to select combustion operation if target is not detected after a preset time or if the detection means are faulty.
- the ammunition according to the invention may include means time delay, the electronic rocket then being defined to automatically select an operation in combustion at the end of a predefined duration by the means of delay.
- a munition 1 according to the invention comprises an explosive charge 2 placed in an envelope 3. This loading is likely to be initiated by a starting means 4 which comprises a control means 5 (constituted here by an electronic rocket) and a means of selection 6 incorporating at least two pyrotechnic relays 13 and 14.
- a starting means 4 which comprises a control means 5 (constituted here by an electronic rocket) and a means of selection 6 incorporating at least two pyrotechnic relays 13 and 14.
- the explosive charge 2 is chosen such that it may have minus two different operating regimes: one regime normal detonation and combustion regime.
- One could for example implement a loading in composite explosive i.e. a material combining a explosive, a binder (active or inert) and a polymerization.
- the binder represents at least 10% by mass of the explosive (preferably 15% by mass).
- MURAT MUnition at Risk Attenuated
- SURAT MUnition at Risk Attenuated
- ie whose vulnerability to attacks external, for example slow or rapid heating (fire fuel), or a projectile impact, or a shock caused by the detonation of a nearby munition, is strongly attenuated or even zero.
- Another type of explosive charge with a regime of detonation and a combustion regime is a charge incorporating a low vulnerability explosive such as oxynitrotriazol, triaminotrinitrobenzene or nitroguanidine.
- Such a slightly vulnerable explosive is associated in a loading in proportions of at least 10% (for example 25% to 60%) by mass to a fusible explosive for example a nitro aromatic such as TNT or 2,4,6-trinitro-N-Methyl Aniline as well as additives (fusable binder phlegmatizer, aluminum powder, emulsifier ).
- a fusible explosive for example a nitro aromatic such as TNT or 2,4,6-trinitro-N-Methyl Aniline
- additives fusible binder phlegmatizer, aluminum powder, emulsifier
- FR2750131 describes a number of explosives usable usable to achieve a loading having thus two operating regimes.
- the selection means 6 comprises at least two relays.
- a first relay or detonation relay is dimensioned in a conventional manner to ensure detonation of the explosive charge 2.
- a relay is well known. He will be for example consisting of a secondary explosive or a association of secondary explosives. We could for example implement a relay associating 50% by mass of Hexogen and 50% by mass of triaminotrinitrobenzene. We will be able to advantageously, if the initiator is sufficiently powerful (sprayed layer initiator for example, more commonly called "Slappers”), make the relay with an explosive same as loading 2.
- a second relay or combustion relay is dimensioned to ensure combustion of the explosive charge 2.
- a composition combining a MURAT explosive (oxynitrotriazol or ONTA), aluminum and wax (for example 60% by mass of ONTA, 20% aluminum and 20% wax).
- the selection means 6 is actuated by the means of command 5 and it allows to align an initiator (not shown in Figure 1) with the first or second relay and the explosive charge so as to constitute at at least two different pyrotechnic chains, which will lead, depending on the chain chosen, to a detonation or a combustion of the load.
- the control means will for example include a microprocessor. It will be connected to different sensors to detect the presence and / or absence of one or more several events leading to a risk of damage collateral.
- a clock 7 (which could also be integrated in the microprocessor).
- a confirmation sensor 8 detecting the deployment of a fin or a means of braking the ammunition.
- a target detector 9 We will be able to finally for the ammunition triggered by a target provide a target detector 9.
- Figure 2 corresponds to a munition which includes means ensuring at least one modification of its trajectory.
- Such ammunition may be an artillery shell with a means of braking on trajectory (such a shell is described by EP1045221).
- Such ammunition may also be a guided bomb with a means of correcting trajectory, for example a rudder controlled by the rocket electronic.
- the “Init” step corresponds to the initialization of the rocket. This step corresponds for example to a detection of the shell or bomb dropped. It includes a energizing the rocket (priming the batteries) and different stages of testing and lifting security e. Depending on the type of ammunition envisaged, the step “Init” is followed by other unrepresented steps which correspond to the rocket control of the organ of trajectory correction.
- step “A1” ie aligning the chain pyrotechnic commanding the detonation.
- the “CIB” test corresponds to the classic detection of a target or a firing condition, whether by impact, by an optical or radio electric detector or by proximity to the ground. This condition leads in a way classic at the “MaF” stage which corresponds to the triggering of the initiator. This trigger when provoked after an alignment of chain "A1" leads to the detonation ammunition.
- rocket 5 commands step "A2", ie aligning the chain pyrotechnic controlling combustion operation.
- Figure 3 corresponds to a munition whose trigger is caused by the detection of a target, by example a missile or a rocket equipped with means of target detection, or a land or naval mine or a submunition equipped with target sensors.
- the “Init” step again corresponds to initialization of the rocket. This step corresponds for example to a detection of the firing of the ammunition or the laying of the mine. It includes energizing the rocket (priming of batteries) and various stages of test and security clearance e.
- the “Init” step is followed here directly by step "A1", ie by aligning the chain pyrotechnic in its operating position in detonation.
- the “CIB” test corresponds to waiting by the rocket of the munition of target detection information.
- the test is followed by a "Verif” test which is a time check (preprogrammed) still available.
- rocket 5 controls the passage to the stage "A2" ie the alignment of the pyrotechnic chain controlling combustion operation.
- This variant is more particularly suitable for planing ammunition in which at least two modes of failures are likely to cause damage collateral: a defect in the guidance / control means (which will be checked by a first “Verif” test applied to control of these means) and a failure to locate a target which will be detected by a second "Verif” test which will be then applied to a time control still available.
- Figures 4 and 5 show a first mode of production of ammunition according to the invention.
- the selection means 6 comprises a movable cocking flap 10 which is interposed between initiator 11 (a command boot component electric) and the explosive charge 2.
- the flap 10 is pivotally mounted relative to an axis 12. It carries the first relay 13 or detonation relay as well than the second relay 14 or combustion relay.
- the flap has a peripheral ring gear 15 on which meshes with a pinion 16 driven by a geared motor 17 (the teeth of the crown and the pinion do not are not shown in Figure 5).
- the flap is shown in FIG. 5 in its position of rest in which it is interposed between the initiator 11 and explosive charge 2. It then ensures an interruption of pyrotechnic chain, therefore storage security.
- the geared motor 17 is controlled by the control means 5. Depending on the direction of rotation S1 or S2 of the gearmotor, the flap 10 is pivoted in either direction and it ensures the alignment of the initiator 11 with the first relay 13 or the second relay 14, so the choice of one or the other of the operating conditions of the explosive charge.
- the control means 5 will cause the shutter to pass in one or other of the positions depending on the information received from sensors 8, 9
- Figures 6 and 7 show ammunition according to a second embodiment.
- This ammunition differs from the previous one in that the relays 13 and 14 occupy fixed positions with respect to the envelope 3 of the explosive charge 2.
- the selection means 6 comprises a plate or drawer 18 mobile which carries the initiator 11 and makes it possible to position it opposite the first relay 13 or the second relay 14.
- the platinum translates in relation to fixed non-sliding represented.
- the plate 18 carries on one side a rack 19 on which meshes a pinion 20 driven by a geared motor 21 which is actuated by the control means 5. Next the amplitude of the rotation of the gear motor 21, the plate 18 translates in direction D by a length more or smaller, which makes it possible to position the initiator 11 in look of one or other of the relays.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Air Bags (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
Description
- la figure 1 est un schéma de principe d'une munition selon l'invention,
- la figure 2 est un logigramme d'un mode de mise en oeuvre du procédé de neutralisation selon l'invention,
- la figure 3 est un logigramme d'un autre mode de mise en oeuvre du procédé de neutralisation selon l'invention,
- la figure 4 est une vue schématique d'une munition suivant un premier mode de réalisation de l'invention,
- la figure 5 est une vue du volet mis en oeuvre dans la munition selon la figure 4,
- la figure 6 est une vue schématique d'une munition suivant un deuxième mode de réalisation de l'invention,
- la figure 7 est une vue de la platine mobile mise en oeuvre dans la munition selon la figure 6.
Claims (10)
- Munition explosive (1) comprenant un chargement explosif (2) susceptible d'être initié par un moyen d'amorçage (4), munition caractérisée en ce que le chargement explosif (2) peut avoir au moins deux régimes de fonctionnement différents, un régime de détonation et un régime de combustion, et en ce que le moyen d'amorçage (4) est susceptible de commander l'un ou l'autre des modes de fonctionnement en réponse à un ordre de sélection fourni par un moyen de commande (5).
- Munition selon la revendication 1, caractérisé en ce que le moyen d'amorçage (4) comporte un initiateur (11) ainsi qu'au moins deux relais, un premier relais (13) ou relais de détonation qui est dimensionné de façon à assurer une mise en détonation du chargement explosif (2) et un deuxième relais (14) ou relais de combustion, qui est dimensionné de façon à assurer une mise en combustion du chargement explosif (2), les moyens d'amorçage comprenant également un moyen de sélection (6) actionné par le moyen de commande (5) et permettant de positionner l'initiateur (11) en regard du premier ou du deuxième relais.
- Munition selon une des revendications 1 ou 2, caractérisé en ce que le chargement explosif (2) est un chargement composite ou bien un chargement incorporant au moins 10% en masse d'un explosif à faible vulnérabilité tel que l'oxynitrotriazol, le triaminotrinitrobenzène ou la nitroguanidine.
- Munition selon la revendication 2, caractérisé en ce que le moyen de sélection (6) comporte un volet d'armement (10) mobile interposé entre l'initiateur (11) et le chargement explosif (2), volet portant le premier (13) et le deuxième relais (14) et susceptible d'occuper au moins deux positions, une position d'amorçage dans laquelle le volet (10) interpose le premier relais (13) entre l'initiateur (11) et le chargement (2), et une position de neutralisation dans laquelle le volet (10) interpose le deuxième relais (14) entre l'initiateur (11) et le chargement (2).
- Munition selon la revendication 2, caractérisé en ce que le moyen de sélection (6) comporte une platine mobile (18) portant l'initiateur (11) et permettant de positionner celui ci en regard du premier (13) ou du deuxième relais (14).
- Munition selon une des revendications 1 à 5, caractérisé en ce que le moyen de commande (5) transmettant l'ordre de sélection est incorporé dans une fusée électronique.
- Munition selon la revendication 6, caractérisé en ce qu'elle comporte des moyens assurant au moins une modification de sa trajectoire, la fusée électronique (5) étant définie pour sélectionner un fonctionnement en combustion si l'ordre de modification de la trajectoire est absent à l'issue d'une durée prédéfinie.
- Munition selon la revendication 6, caractérisé en ce qu'elle comporte des moyens de détection (9) d'une cible, la fusée électronique (5) étant définie pour sélectionner un fonctionnement en combustion si la cible n'est pas détectée à l'issue d'une durée prédéfinie ou si les moyens de détection (9) sont défaillants.
- Munition selon la revendication 6, caractérisé en ce qu'elle comporte des moyens de temporisation, la fusée électronique étant définie pour sélectionner automatiquement un fonctionnement en combustion à l'issue d'une durée prédéfinie par les moyens de temporisation.
- Procédé de neutralisation d'une munition explosive comprenant un chargement explosif (2) susceptible d'être initié par un initiateur (11), chargement ayant au moins deux régimes de fonctionnement différents, un régime de détonation et un régime de combustion, procédé caractérisé en ce que :on détecte au moins une défaillance d'un organe et/ou au moins un intervalle de temps prédéfini,on commande comme suite à cette détection le positionnement d'un relais de combustion (14) entre l'initiateur (11) et le chargement explosif (2), relais dont les caractéristiques sont choisies de façon à ce que son initiation soit susceptible de commander la combustion du chargement explosif.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0202322A FR2836547B1 (fr) | 2002-02-22 | 2002-02-22 | Munition explosive et procede de neutralisation d'une telle munition explosive |
FR0202322 | 2002-02-22 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1338861A1 true EP1338861A1 (fr) | 2003-08-27 |
EP1338861B1 EP1338861B1 (fr) | 2007-03-07 |
EP1338861B8 EP1338861B8 (fr) | 2007-07-11 |
Family
ID=27636427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20030001897 Expired - Lifetime EP1338861B8 (fr) | 2002-02-22 | 2003-01-30 | Munition explosive et procédé de neutralisation d'une telle munition explosive |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1338861B8 (fr) |
DE (1) | DE60312243T2 (fr) |
FR (1) | FR2836547B1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2827091A1 (fr) | 2013-07-19 | 2015-01-21 | Nexter Munitions | Initiateur électrique ayant deux modes de fonctionnement |
US20220090886A1 (en) * | 2019-01-30 | 2022-03-24 | Atlas Elektronik Gmbh | Weapon having a deflagration igniter and method for operating such a weapon |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3667387A (en) * | 1971-01-19 | 1972-06-06 | Us Army | Self-destruct land mine |
FR2290022A1 (fr) * | 1974-10-25 | 1976-05-28 | Motorola Inc | Dispositif de selection de modes de fonctionnement mis en oeuvre par un choc |
US4553482A (en) * | 1980-12-20 | 1985-11-19 | Diehl Gmbh & Co. | Practice projectile |
-
2002
- 2002-02-22 FR FR0202322A patent/FR2836547B1/fr not_active Expired - Fee Related
-
2003
- 2003-01-30 EP EP20030001897 patent/EP1338861B8/fr not_active Expired - Lifetime
- 2003-01-30 DE DE2003612243 patent/DE60312243T2/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3667387A (en) * | 1971-01-19 | 1972-06-06 | Us Army | Self-destruct land mine |
FR2290022A1 (fr) * | 1974-10-25 | 1976-05-28 | Motorola Inc | Dispositif de selection de modes de fonctionnement mis en oeuvre par un choc |
US4553482A (en) * | 1980-12-20 | 1985-11-19 | Diehl Gmbh & Co. | Practice projectile |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2827091A1 (fr) | 2013-07-19 | 2015-01-21 | Nexter Munitions | Initiateur électrique ayant deux modes de fonctionnement |
FR3008785A1 (fr) * | 2013-07-19 | 2015-01-23 | Nexter Munitions | Initiateur electrique ayant deux modes de fonctionnement |
US20220090886A1 (en) * | 2019-01-30 | 2022-03-24 | Atlas Elektronik Gmbh | Weapon having a deflagration igniter and method for operating such a weapon |
US12169120B2 (en) * | 2019-01-30 | 2024-12-17 | Atlas Elektronik Gmbh | Weapon having a deflagration igniter and method for operating such a weapon |
Also Published As
Publication number | Publication date |
---|---|
EP1338861B8 (fr) | 2007-07-11 |
DE60312243T2 (de) | 2007-11-22 |
EP1338861B1 (fr) | 2007-03-07 |
FR2836547A1 (fr) | 2003-08-29 |
FR2836547B1 (fr) | 2005-10-21 |
DE60312243D1 (de) | 2007-04-19 |
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