EP2824414B1 - Procédé et dispositif destinés à contrôler la performance d'un système à principe actif - Google Patents

Procédé et dispositif destinés à contrôler la performance d'un système à principe actif Download PDF

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Publication number
EP2824414B1
EP2824414B1 EP14002293.0A EP14002293A EP2824414B1 EP 2824414 B1 EP2824414 B1 EP 2824414B1 EP 14002293 A EP14002293 A EP 14002293A EP 2824414 B1 EP2824414 B1 EP 2824414B1
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EP
European Patent Office
Prior art keywords
charge
igniting
explosive
initiation
active system
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.)
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EP14002293.0A
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German (de)
English (en)
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EP2824414A1 (fr
Inventor
Markus Graswald
Hans-Dieter Ackermann
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TDW Gesellschaft fuer Verteidigungstechnische Wirksysteme mbH
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TDW Gesellschaft fuer Verteidigungstechnische Wirksysteme mbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/08—Primers; Detonators
    • F42C19/0838—Primers or igniters for the initiation or the explosive charge in a warhead
    • F42C19/0842—Arrangements of a multiplicity of primers or detonators, dispersed within a warhead, for multiple mode selection

Definitions

  • the invention relates to a device for power control of an active system comprising at least one ignition system, a first ignition device for the detonative initiation of a first charge, wherein the first charge initiates the deflagration of a second charge, and a second igniter for the detonative initiation of the second charge,
  • the effect of flexible warhead systems is more precise and adaptable to the target, on the ground with the detonator setting or, if possible, in the field of use (e.g., cockpit selectable). This can at least reduce unintentional damage and, ideally, avoid it.
  • warheads or bombs with Blast horrin- and splinter effect are used primarily against soft and possibly also semi-hard targets, such as unarmoured vehicles, standing on the ground aircraft, radar positions and / or individuals or groups of people. Also, the effect on intrusion inside infrastructure buildings can be limited. Other applications exist in the coastal environment, especially in harbors where e.g. small, fast pirate boats to the target range to be added. These tasks are covered by previously known solutions only insufficient.
  • the DE 102 22 184 A1 shows a warhead with two adjacent arranged ignition devices, which is adjustable depending on the target to be combated.
  • the DE 10 2009 017 160 B3 deals with a warhead, which on the one hand has a detonative initiation that is locally displaceable around to be able to achieve different splitter sizes. Furthermore, the warhead has a subdetonative ignition device, which is usually spatially separated from the detonative initiation.
  • a subdetonative reaction e.g. a deflagration
  • a detonation for the purpose of power control and limitation of the effective areas to take over, while avoiding the mentioned weaknesses.
  • the principle should also be applicable to effective systems with a significantly larger form factor and increase their reliability.
  • the two initiation locations are spatially next to each other, can even be integrated in a detonator with two ignition points.
  • Charge at a second time e.g. according to calculated specifications or by means of an evaluation of the measurement of the reaction progress of the first charge.
  • the object is further achieved according to the invention by a device having a first ignition device for the initiation of a first charge, and a second ignition device for the detonative initiation of a second charge, wherein the arrangement of the first and the second ignition device is selected such that these ignition devices lie directly adjacent, and wherein the second ignition device is arranged directly at the rear end of the system enclosing the active system.
  • the first ignition device is ignited at a first time and the second ignition device at a second time, wherein t1 ⁇ t2 and wherein the time interval between t1 and t2 is decisive for the quantitative ratio of the subdetonatively converted explosive component to the detonatively converted explosive component.
  • the ignition times are controlled according to specifications or are spontaneously adjustable. It is equally possible to set one of the ignition times in dependence on the other ignition timing and the resulting measured reaction progress.
  • the first charge is designed as a detonating cord arranged in the region of the longitudinal axis of the active system. It is also possible to carry out the first charge as a plurality of detonating cords arranged parallel to the longitudinal axis of the active system.
  • the function of the first charge is designed as a shaped charge or as a charge forming several projectiles.
  • the hollow charge may be provided with an upstream plate.
  • a further alternative according to the invention is that the first charge is implemented by an explosive charge core with an explosive charge of higher sensitivity than the second charge.
  • This explosive charge core can also be sheathed, e.g. with a plastic jacket.
  • the device can also be designed so that the first charge L1 is designed as a multiplicity of explosive charge cores having a higher sensitivity arranged in the region of the longitudinal axis LA. These explosive charge cores can also be encased in plastic.
  • the initial velocity of the splinters is reduced in the first place, which (regardless of fragmentation masses and numbers) ultimately leads to a reduction in the effects and effects (Collateral) damage surfaces leads.
  • the blast pressure in particular the first peak overpressure, is significantly reduced. The latter also depends on the damming by a shell.
  • the scalability device described here initiates the detonating cord arranged centrally, for example, and the subsequent detonation by means of a detonator from the same side.
  • This has two main advantages.
  • the detonation velocity of detonating cord and explosive is approximately the same over the entire charge length, resulting in approximately the same superposition ratios of the two subdetonative reaction and detonation modes.
  • the installation of a compact ignition system instead of spatially distributed ignition points offers advantages in terms of installation, cost and reliability as well as impact surfaces against military targets on the ground and damage surfaces against non-military targets or objects on the ground. No cable ducts / connections, neither inside nor outside, need to be routed from the rear part to the front side.
  • the initiation of the subdetonative reaction here, for example, the centrally arranged detonating cord
  • the initiation of the subdetonative reaction here, for example, the centrally arranged detonating cord
  • one or more, also curved, eccentrically arranged detonating cords or a combination of several subdetonation triggers can be effected.
  • the detonation cord can basically also be replaced by a hollow charge, the effect being set by the design of the hollow charge and possibly by additional ballasts so that the explosive charge L2 is only excited to a subdetonative conversion.
  • the spike tip speed (possibly after the ballast plate) is then designed to be on a similar order of magnitude as the detonation rate of the explosive charge.
  • the subdetonator triggers a subdetonative reaction called deflagration or low velocity detonation (LVD).
  • deflagration low velocity detonation
  • the pressure and flame front of the multiphase reaction zone are spatially separated and can propagate at different rates. The speeds also depend on the damming, i. Thickness and strength of the metal shell, from.
  • the speed of the pressure front is in the range of the speed of sound of the explosive, i. at a deflagration just below the speed of sound and at an LVD up to 1.4 times the speed of sound.
  • This deflagration is e.g. initiated by the detonating cord and then propagates radially outward from the warhead center. Since the speed of this deflagration reaction is in the order of magnitude of the speed of the explosive and thus much slower than a detonation (the detonating cord is detonated), the reaction front of the deflagration is similar to a Mach cone.
  • the in FIG. 3 schematically simplified, results in a superimposed effect, which lies between the effects of a subdetonative reaction and a detonation. It can be done by initiation of the subdetonator (deflagrator) and later time-delayed initiation of the detonator.
  • the reduction of the effect compared to a pure detonation becomes greater, the greater the time interval between the intions of the subdetonator and the detonator.
  • the firing interval must be at least so long that, depending on the length of the warhead or the bomb, the subdetonative reaction is in no case overtaken, especially if the detonation speed of the detonating cord is smaller than that of the explosive itself.
  • the other limit results from the period of time after the subdetonative reaction reaches the charge edge and thus the explosive charge is implemented radially completely subdetonatively.
  • the time delay of the detonator determines the pyrotechnic scaling factor.
  • the ignition system is programmable on it.
  • the ignition delay time ⁇ t can be determined in several ways: once from continuously measuring the progress of the reaction (e.g., through one or more corresponding probes in the explosive charge) or as a fixed value determined from known quantities such as reaction rates of e.g. Detonating cord and radial velocity of the subdetonative reaction front.
  • the sub-detonator is not ignited at all or the sub-detonator and detonator are ignited simultaneously (the time delay is set to zero). Then the power of the active part corresponds to the classic ignition with a high order detonation of the entire explosive charge including the charge L1, e.g. the detonating cord.
  • FIG. 1 An embodiment is exemplary in the Fig, 1 the drawing shown.
  • This shows a schematically simplified longitudinal section through an active system, each equipped with an ignition device for an I1 initiation of the charge L1 and for a detonative initiation I2 of the charge L2.
  • Both igniters are located not only on the same side of the active system, but they are also arranged as close to each other as possible.
  • the subdetonative reaction emanating from the centrally located detonating cord SP in this case a deflagration, which is similar to a Mach cone due to its typical reaction rates in the axial and in the radial direction.
  • the Fig.2 shows an arrangement for measuring the course of a subdetonative reaction of an explosive, which was triggered by means disposed in the region of the longitudinal axis detonating cord.
  • the structure of the measuring arrangement is shown in the upper left half of the diagram.
  • Good to see is the coated explosive charge L1, which surrounds the centrally arranged detonating cord SP.
  • two probes are provided parallel to the detonating cord SP.
  • the first probe VOD 1 is located close to the detonating cord SP and senses the reaction in the immediate vicinity of the detonating cord, the other is located in the vicinity of the envelope HU and senses the delayed reaction process near the envelope.
  • the signal of the outer probe VOD 3 also shows a steeper increase in speed at the beginning of the measurement than in the further course. This can be explained by the fact that at the edge of the charge, the reaction and an associated increase in pressure start later (geometric start-up effects). At the other charge end, i. At the end of the measurement, the reaction at the edge of the charge already subsides after approximately 200 mm of charge length. This is due to the lack of detonating cord in the lower charge segment, which leads to the reaction initially igniting and finally dying out altogether. Thus, sufficient pressure is not generated to cause a short circuit of the probe, which can then be measured indirectly by a measuring device.
  • FIG. 3 is simplified, the intermediate mode for the reduced detonative implementation of the explosive charge L2 shown.
  • the central bright part DFU is the representation of the subdetonatively converted part and the darker part DTU surrounding the lighter one is the representation of the detonatively converted part of the explosive charge.
  • the section AA clarifies the concentric arrangement of the two parts DFU and DTU.
  • the described principle of action is not limited to this bomb, but applicable to almost all active bodies with blast / splinter effect.

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Claims (7)

  1. Système de commande de la puissance d'un système actif, comprenant :
    - au moins un système d'allumage,
    - un premier dispositif d'allumage (Z1) pour l'amorçage en détonation (I1) d'une première charge (L1), la première charge (L1) étant réalisée sous la forme d'au moins un cordon détonant (SP) disposé dans la zone de l'axe longitudinal et amorçant la déflagration d'une deuxième charge (L2),
    - un deuxième dispositif d'allumage (Z2) pour l'amorçage en détonation (I2) de la deuxième charge (L2),
    caractérisé par
    un arrangement du premier et du deuxième dispositif d'allumage (Z1, Z2) de telle sorte que ces dispositifs d'allumage (Z1, Z2) soient disposés directement adjacents, le deuxième dispositif d'allumage (Z2) étant disposé directement à l'extrémité côté arrière (EH) d'une gaine (HU) qui entoure le système actif.
  2. Système selon la revendication 1, caractérisé en ce que le premier dispositif d'allumage (Z1) peut être allumé à un premier instant (t1) et le deuxième dispositif d'allumage (Z2) à un deuxième instant (t2), avec (t1) ≤ (t2) et l'écart temporel entre (t1) et (t2) pouvant être réglé conformément au rapport quantitatif entre la part de substance explosive convertie en part sub-détonative et la part de substance explosive convertie en part dénotative en fonction de la cible à combattre.
  3. Système selon la revendication 1 ou 2, caractérisé en ce qu'après le déclenchement de l'amorçage (I1) de la première charge (L1) à un premier instant (t1), l'amorçage en détonation (I2) de la deuxième charge (L2) peut ensuite être initié à un deuxième instant (t2), lequel peut être calculé d'après des indications ou peut être déterminé au moyen d'une interprétation de la mesure de la progression de la réaction de la première charge (L1).
  4. Système de commande de la puissance d'un système actif, comprenant :
    - au moins un système d'allumage,
    - un premier dispositif d'allumage (Z1) pour l'amorçage en détonation (I1) d'une première charge (L1), la première charge (L1) étant réalisée sous la forme d'une charge creuse (HL) ou d'une charge (PL) formant plusieurs projectiles et amorçant la déflagration d'une deuxième charge (L2),
    - un deuxième dispositif d'allumage (Z2) pour l'amorçage en détonation (12) de la deuxième charge (L2),
    caractérisé par
    un arrangement du premier et du deuxième dispositif d'allumage (Z1, Z2) de telle sorte que ces dispositifs d'allumage (Z1, Z2) soient disposés directement adjacents, le deuxième dispositif d'allumage (Z2) étant disposé directement à l'extrémité côté arrière (EH) d'une gaine (HU) qui entoure le système actif .
  5. Système selon la revendication 4, caractérisé en ce que la charge creuse (HL) est pourvue d'une plaque placée en amont (PV).
  6. Système de commande de la puissance d'un système actif, comprenant :
    - au moins un système d'allumage,
    - un premier dispositif d'allumage (Z1) pour l'amorçage en détonation (I1) d'une première charge (L1), la première charge (L1) amorçant la déflagration d'une deuxième charge (L2),
    - un deuxième dispositif d'allumage (Z2) pour l'amorçage en détonation (12) de la deuxième charge (L2),
    caractérisé par
    un arrangement du premier et du deuxième dispositif d'allumage (Z1, Z2) de telle sorte que ces dispositifs d'allumage (Z1, Z2) soient disposés directement adjacents, le deuxième dispositif d'allumage (Z2) étant disposé directement à l'extrémité côté arrière (EH) d'une gaine (HU) qui entoure le système actif,
    - la première charge (L1), qui est réalisée sous la forme d'une âme de charge explosive disposée dans la zone de l'axe longitudinal (LA) ou sous la forme d'une pluralité d'âmes de charge explosive disposées dans la zone de l'axe longitudinal (LA), la charge explosive possédant respectivement une sensibilité plus élevée.
  7. Système selon la revendication 6, caractérisé en ce que l'âme de charge explosive ou les âmes de charge explosive sont enrobées de matière plastique.
EP14002293.0A 2013-07-09 2014-07-04 Procédé et dispositif destinés à contrôler la performance d'un système à principe actif Active EP2824414B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201310011404 DE102013011404B4 (de) 2013-07-09 2013-07-09 Verfahren und Vorrichtung zur Leistungssteuerung eines Wirksystems

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EP2824414A1 EP2824414A1 (fr) 2015-01-14
EP2824414B1 true EP2824414B1 (fr) 2017-11-22

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EP (1) EP2824414B1 (fr)
DE (1) DE102013011404B4 (fr)
ES (1) ES2654804T3 (fr)
NO (1) NO2951235T3 (fr)

Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
DE102014004003B3 (de) 2014-03-20 2014-10-30 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Zündsystem für ein skalierbares Wirksystem
DE102014014332B3 (de) 2014-10-01 2016-03-17 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Vorrichtung und Verfahren zur kontrollierten Splitterbildung mittels temperaturaktivierbarer Kerbladungen
DE102014018218B4 (de) 2014-12-06 2023-05-17 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Vorrichtung zur gesteuerten Initiierung der Deflagration einer Sprengladung
DE102015010855A1 (de) 2015-08-18 2017-02-23 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Vorrichtung zur Überwachung einer Zündeinrichtung
DE102021002470B4 (de) 2021-05-10 2023-09-21 TDW Gesellschaft für verteidigungstechnische Wirksysteme mit beschränkter Haftung Skalierbares Wirksystem und Gefechtskopf

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DE19961204C2 (de) * 1999-12-18 2003-06-26 Daimler Chrysler Ag Zündeinrichtung
DE10008914C2 (de) * 2000-02-25 2003-06-26 Tdw Verteidigungstech Wirksys Sprengladung für einen Gefechtskopf
DE10222184B4 (de) * 2002-05-18 2005-06-09 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Gefechtskopf
DE102009017160B3 (de) * 2009-04-09 2010-08-19 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Zerlegevorrichtung für die Sprengladung eines Gefechtskopfes
DE102012006044B3 (de) * 2012-03-27 2013-03-21 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Verfahren und Vorrichtung zur Messung des Verlaufs einer Deflagrationsfront in einem zylindrischen Gefechtskopf mit wenigstens zwei Zündeinrichtungen

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DE102013011404A1 (de) 2015-01-15
EP2824414A1 (fr) 2015-01-14
NO2951235T3 (fr) 2018-01-27
DE102013011404B4 (de) 2015-03-19
ES2654804T3 (es) 2018-02-15

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