EP2442065B1 - Charge active commutable - Google Patents

Charge active commutable Download PDF

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Publication number
EP2442065B1
EP2442065B1 EP11008289.8A EP11008289A EP2442065B1 EP 2442065 B1 EP2442065 B1 EP 2442065B1 EP 11008289 A EP11008289 A EP 11008289A EP 2442065 B1 EP2442065 B1 EP 2442065B1
Authority
EP
European Patent Office
Prior art keywords
explosive
charge
switchable
ignition
explosive 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.)
Active
Application number
EP11008289.8A
Other languages
German (de)
English (en)
Other versions
EP2442065A3 (fr
EP2442065A2 (fr
Inventor
Werner Dr. Arnold
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.)
TDW Gesellschaft fuer Verteidigungstechnische Wirksysteme mbH
Original Assignee
TDW Gesellschaft fuer Verteidigungstechnische Wirksysteme mbH
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
Priority claimed from DE201010048570 external-priority patent/DE102010048570B4/de
Priority claimed from DE201110010351 external-priority patent/DE102011010351A1/de
Application filed by TDW Gesellschaft fuer Verteidigungstechnische Wirksysteme mbH filed Critical TDW Gesellschaft fuer Verteidigungstechnische Wirksysteme mbH
Publication of EP2442065A2 publication Critical patent/EP2442065A2/fr
Publication of EP2442065A3 publication Critical patent/EP2442065A3/fr
Application granted granted Critical
Publication of EP2442065B1 publication Critical patent/EP2442065B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • F42B12/20—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type
    • F42B12/22—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type with fragmentation-hull construction
    • 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
    • F42C19/095—Arrangements of a multiplicity of primers or detonators, dispersed around a warhead, one of the primers or detonators being selected for directional detonation effects

Definitions

  • the invention relates to a switchable active charge of a warhead with a splitter-forming shell and with an active charge, in which a tubular holder is arranged with a plurality of distributed arranged pellets, with a first end-side arranged ignition device, which corresponds to a plate-shaped fürtragerladung in the area Detonationswellenscher is arranged, and a further ignition device which is positioned in the region of the longitudinal axis of the active charge, wherein the ignition devices are independently initiated.
  • a cylindrical active charge has become known with a splinter-forming shell. This has a concentric within the charge arranged tubular support which carries a plurality of distributed arranged pellets. Furthermore, the effective charge is equipped with a first end-side arranged ignition device which corresponds to a plate-shaped fürtragerladung. In the area of the transformer charge is a detonation shaft link, by means of which the initiation starting from the first ignition device is guided via the transformer charge and then strikes the effective charge in the region of the shell. Furthermore, at least one further ignition device is provided in the region of the longitudinal axis of the active charge, which carries out the initiation of the effective charge from there.
  • the mode of operation of an active charge with a holder for pellets is such that when the further ignition device is ignited, the generated detonation wave passes through the explosive pellets in the holder and on to the casing.
  • the detonation wave is converted into a shock wave and thereby somewhat delayed (since its velocity is lower than that of a detonation wave), while the pellets ignite immediately and thereby form new punctiform detonation sources which overlap one another.
  • This interaction forms a pattern of detonation fronts. Therefore, disassembly of the envelope material according to the pattern of the pressure peaks occurs in the envelope.
  • This splitter can be generated in adjustable size.
  • the EP 2 133 654 A2 describes a switchable active charge of a warhead with a splitter-forming shell and a cylindrical active charge, as well as a frontally arranged ignition device, which corresponds to a plate-shaped transfer charge, in the region of a central detonation waveguide is arranged. Furthermore, this active charge has two coaxial parts of the charge whose explosives have different performance.
  • the charge located inside the holder (HU) has a first central part (SP) and a second part (SP1, SP2) immediately surrounding the central part, wherein the first part (SP) consists of a powerful central part Explosive exists and the second part (SP1, SP2) consists of a lower performance explosive than the explosive of the first part, and wherein the layer of the second explosive has a thickness in the range 5 to 25 mm, and that in the region of the tubular holder (PH) at least three ignition devices (Z3a, Z3b) are arranged distributed over the circumference.
  • the explosive of the second part contains metal powder and / or ammonium perchlorate.
  • the charge located inside the envelope (HU) has a first central part (SP) and a second part (SP2) directly surrounding the central part, the first part (SP) being made of a powerful explosive and the second part (SP2) consists of a lower power explosive than the explosive of the first part and wherein the layer of the second part has a thickness in the range of 5 - 25 mm, the second part (SP2) of the charge immediately a notched grid (KG) made of a material, which is itself arranged in contact with the casing (HU), and in that at least three ignition devices (Z3a, Z3b) are distributed over the circumference in the region of the tubular holder (PH).
  • SP central part
  • SP2 a second part directly surrounding the central part
  • the first part (SP) being made of a powerful explosive
  • the second part (SP2) consists of a lower power explosive than the explosive of the first part and wherein the layer of the second part has a thickness in the range of 5 - 25 mm
  • the second part (SP2) of the charge
  • the notched grid recesses or other suitable for the formation of splinters from the shell means are provided.
  • FIG. 1 The basic principle of the invention is in the FIG. 1 shown schematically simplified. This initially concerns that from the parent application DE 102010048570.5-15 known concept of a cylindrical holder for explosive pellets and two arranged on the longitudinal axis ignition Z1 (front side) and Z2 (center). According to the invention, additional peripheral ignition points Z3a, Z3b are added, which are arranged in the region of the holder PH and within the envelope H. At least three peripheral ignition points are provided, and more than 3 ignition points can be uniformly distributed over the circumference. Their number determines the directional accuracy in the direction of the target. The higher the number of firing points selected, the higher the aiming accuracy of the target.
  • peripheral ignition points is in the FIG. 1 only one ignition point per side provided, it can be provided in the longitudinal direction of the effective charge also several individual firing points or a peripheral initiating strip.
  • the aim of the invention is the up to 30% higher speed of the splitter generated from the envelope H by means of the peripheral ignition points 3a, 3b in conjunction with the in the holder PH filled with explosives pellets.
  • the pellets only become detonatively effective when the detonation front from the ignition point Z3a, Z3b coming approximately perpendicular to the bracket PH.
  • the ignition Z3a shown on the left is initiated.
  • the detonation front which is represented by the reference numerals 1, 2 and 3 according to their development stages, hits the holder PH head-on.
  • the pellets become detonatively effective and generate behind the holder PH local detonation waves, which overlap and lead to a modulated detonation front 4, which in turn strikes the envelope H and disassembles it according to the pressure maxima and minima.
  • the detonation front also extends in the direction of the holder PH. However, it only strikes the pellets stored in the holder so that they do not detonate effectively, and thus none form modulated detonation front. With increasing distance from the ignition point there is a transition from the grazing to the frontal incidence of the detonation front on the holder PH. Thus, the pellets themselves are increasingly detonative effect.
  • FIGS. 2 and 3 The embodiments of the active charge according to the invention are the following description of FIGS. 2 and 3 refer to.
  • a further explosive layer is arranged either in the region of the holder PH or in the region of a notched grid or the casing itself.
  • this additional explosive charge SP1, SP2 or SP3 can be identical to the explosive charge SP of the previously described variants.
  • an explosive type which differs greatly from the explosive charge SP.
  • a blast type and splitter acceleration effect type may be used, while the external explosive charge SP1, SP2 or SP3 is of the type that accelerates well only when strongly initiated via the explosive charge SP.
  • these metal casings are accelerated only insufficiently if the explosive is not strongly initiated by suitably weak ignition points (eg Z3a).
  • the inner explosive charge SP can consist of a conventional high-performance explosive with so-called ideal detonation, in which the entire explosive charge is converted in the detonation front and releases its energy.
  • the outer explosive charge layer consists of a non-ideal explosive charge, in which only a small proportion is converted in the detonation front and the detonation pressures and power output are correspondingly lower. In such explosive charges, it often comes at later times to post-reactions.
  • the inner explosive charge SP has a powerful detonation with high detonation velocity after initiation. If this detonation front now encounters the further non-ideal explosive charge SP1, SP2 or SP3, it largely assumes the detonation behavior of the ideal explosive charge, as a result of which the shell is split up in a controlled manner and accelerated to high speeds.
  • the transition layer depends on individual explosive-type detonative parameters and is thus variably adjustable within limits. It is usually several millimeters thick (eg 10 to 20 mm).
  • the non-ideal explosive charge SP1, SP2, or SP3 is only weakly initiated, thereby disassembling the shell in a controlled manner and not accelerating at high speeds. In this way, this explosive charge behavior according to the present invention is exploited in conjunction with the fragmentation methods known per se.
  • the FIG. 2 shows a first example of the embodiment with two different explosives.
  • the inner explosive charge SP consists of a conventional high-performance explosive, on the other hand, it surrounds on the outer surface of a layer of non-ideal explosive SP1.
  • the detonation front 1, 2, 3 strikes the layer SP1 on the opposite side, which assumes the detonative properties of SP and then activates the pellets P.
  • the igniter side however, only a weak detonation occurs in the layer SP1, moreover, the pellets are not effective and the shell is only slightly accelerated. The effect thus proceeds as in the exemplary embodiment FIG. 4 , only that the difference in performance is even more pronounced.
  • FIG. 3 shows a similar structure as that FIG. 2 , but with the difference that instead of the explosive layer SPA between the holder PH and the shell HU now an inert notched grid KG is provided.
  • This is preferably a hollow cylinder made of plastic or Metal in which grooves are milled. If the detonation front 1, 2, 3 perpendicular to this notch KG, so the broken webs between the grooves N act like flying plates and then burst of detonation streams at high speed into the grooves. As a result, notches are struck in the continuous shell, so that the shell breaks at these points.
  • the situation is different on the side of the ignition Z3a.
  • the detonation front falls there preferably grazing on the notch KG and the grooves are closed by the plastic deformation due to the high pressure effect.
  • the shell is accelerated much less, since the explosive layer SP2 forms only a weak detonation.
  • FIG. 4 Another reversible active charge of a warhead, which is not the subject of the present invention, is in the FIG. 4 shown.
  • the explosive layer SP3 has a multiplicity of notches K in the area of the separating surface of the envelope HU. Also in this case, the locally different angle of incidence of the propagating detonation front 1, 2, 3 is used in the same way.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Generation Of Surge Voltage And Current (AREA)
  • Disintegrating Or Milling (AREA)

Claims (5)

  1. Charge active commutable d'une ogive, comprenant une enveloppe (HU) formant un projectile et comprenant une charge active (SP) cylindrique, dans laquelle un support tubulaire (PH) ayant une pluralité de granulés (P) distribués est disposé à l'intérieur de la charge explosive, comprenant un premier dispositif d'allumage (Z1) disposé côté frontal, lequel correspond à une charge de transmission (UL) en forme de plaque dans la zone de laquelle est disposé un élément de guidage d'ondes de détonation (DL) central, et un dispositif d'allumage supplémentaire (Z2) qui est positionné dans la zone de l'axe longitudinal de la charge active,
    les dispositifs d'allumage pouvant être initiés indépendamment l'un de l'autre,
    au moins trois dispositifs d'allumage (Z3a, Z3b) étant distribués sur le pourtour dans la zone du support tubulaire (PH),
    caractérisée en ce
    que la charge qui se trouve à l'intérieur du support (PH) possède une première partie centrale (SP) et une deuxième partie (SP1, SP2) qui entoure directement la partie centrale, la première partie (SP) se composant d'une matière explosive puissante et la deuxième partie (SP1, SP2) se composant d'une matière explosive ayant une puissance inférieure à la matière explosive de la première partie et la couche de la deuxième matière explosive possédant une épaisseur de 5 à 25 mm.
  2. Charge active commutable selon la revendication 1, caractérisée en ce que la matière explosive de la deuxième partie (SP1, SP2) contient de la poudre métallique et/ou du perchlorate d'ammonium.
  3. Charge active commutable d'une ogive, comprenant une enveloppe (HU) formant un projectile et comprenant une charge active cylindrique, comprenant un premier dispositif d'allumage (Z1) disposé du côté frontal, lequel correspond à une charge de transmission (UL) en forme de plaque dans la zone de laquelle est disposé un élément de guidage d'ondes de détonation (DL) central, et au moins un dispositif d'allumage supplémentaire, les dispositifs d'allumage pouvant être initiés indépendamment les uns des autres,
    caractérisée en ce
    que la charge qui se trouve à l'intérieur de l'enveloppe (HU) possède une première partie centrale (SP) et une deuxième partie (SP2) qui entoure directement la partie centrale, la première partie (SP) se composant d'une matière explosive puissante et la deuxième partie (SP2) se composant d'une matière explosive ayant une puissance inférieure à la matière explosive de la première partie et la couche de la deuxième partie possédant une épaisseur de 5 à 25 mm, en ce que la deuxième partie (SP2) de la charge repose directement contre une grille à encoches (KG) constituée d'un matériau et qui est elle-même disposée de façon à être en contact avec l'enveloppe (HU) et en ce qu'au moins trois dispositifs d'allumage (Z3a, Z3b) sont distribués sur le pourtour dans la zone de la grille à encoches (KG).
  4. Charge active commutable selon la revendication 3, caractérisée en ce que la grille à encoches (KG) possède des cavités ou d'autres dispositifs appropriés pour la formation d'éclats à partir de l'enveloppe (HU).
  5. Charge active commutable selon la revendication 3, caractérisée en ce que la grille à encoches (KG) se compose d'un matériau inerte.
EP11008289.8A 2010-10-18 2011-10-14 Charge active commutable Active EP2442065B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010048570 DE102010048570B4 (de) 2010-10-18 2010-10-18 Umschaltbare Wirkladung
DE201110010351 DE102011010351A1 (de) 2011-02-04 2011-02-04 Umschaltbare Wirkladung

Publications (3)

Publication Number Publication Date
EP2442065A2 EP2442065A2 (fr) 2012-04-18
EP2442065A3 EP2442065A3 (fr) 2015-04-22
EP2442065B1 true EP2442065B1 (fr) 2017-03-29

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ID=45003113

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11008289.8A Active EP2442065B1 (fr) 2010-10-18 2011-10-14 Charge active commutable

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EP (1) EP2442065B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014003893A1 (de) * 2014-03-19 2015-09-24 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Umschaltbare Ladungsvarianten mit Lochmuster-Einlagen und alternativ mit Reaktiven Struktur-Materialien (RSM)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006018687A1 (de) * 2006-04-21 2007-11-08 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Umschaltbare Ladung
DE102006048299B3 (de) * 2006-10-12 2008-09-25 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Zylindrische Wirkladung
DE102008027900B4 (de) * 2008-06-11 2013-07-04 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Verfahren und Vorrichtung zur Leistungssteuerung eines Gefechtskopfes
DE102008060737A1 (de) * 2008-12-05 2010-06-10 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Verfahren und Vorrichtung zur Erzeugung unterschiedlicher Splittergrößen
DE102009017160B3 (de) * 2009-04-09 2010-08-19 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Zerlegevorrichtung für die Sprengladung eines Gefechtskopfes

Also Published As

Publication number Publication date
EP2442065A3 (fr) 2015-04-22
EP2442065A2 (fr) 2012-04-18

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