EP2194354B1 - Tête militaire à fragmentation - Google Patents

Tête militaire à fragmentation Download PDF

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Publication number
EP2194354B1
EP2194354B1 EP09015024.4A EP09015024A EP2194354B1 EP 2194354 B1 EP2194354 B1 EP 2194354B1 EP 09015024 A EP09015024 A EP 09015024A EP 2194354 B1 EP2194354 B1 EP 2194354B1
Authority
EP
European Patent Office
Prior art keywords
explosive charge
splitter
initiating
shell
notches
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
EP09015024.4A
Other languages
German (de)
English (en)
Other versions
EP2194354A3 (fr
EP2194354A2 (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.)
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Publication date
Application filed by TDW Gesellschaft fuer Verteidigungstechnische Wirksysteme mbH filed Critical TDW Gesellschaft fuer Verteidigungstechnische Wirksysteme mbH
Publication of EP2194354A2 publication Critical patent/EP2194354A2/fr
Publication of EP2194354A3 publication Critical patent/EP2194354A3/fr
Application granted granted Critical
Publication of EP2194354B1 publication Critical patent/EP2194354B1/fr
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Classifications

    • 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
    • F42B12/24—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 with grooves, recesses or other wall weakenings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/22—Elements for controlling or guiding the detonation wave, e.g. tubes
    • 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
    • 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 warhead with an explosive charge with a splitter-forming shell and disposed within this inner shell, wherein the inner shell on its splinter-forming shell facing surface arranged a plurality distributed, with respect to a solder on the surface of the inner shell with respect to their cross-section asymmetric and with respect their position relative to the first initiator device similarly aligned and pointing in a preferred direction grooves, and wherein at least two diametrically provided on the longitudinal axis of the explosive charge initiating devices are provided in the field of explosive charge, which are individually and / or set with adjustable time interval.
  • the active body has a splinter-forming, unnotched shell, on the inside of a provided with various grooves inner shell rests. On its splinter-forming shell facing surface is arranged a plurality of distributed, with respect to a solder on the surface of the inner shell with respect to their cross-section asymmetric and with respect to the longitudinal axis of the active body two preferred directions exhibiting grooves arranged. Furthermore, the active body comprises two arranged on the longitudinal axis and diametrically opposite ignition devices, which are independently initiated, so that two different splitter types can be generated with the active body.
  • the inner shell which may also be referred to as a slot mesh or fragmentation template, creates notches upon detonation of the explosive charge in the shell of the warhead. Depending on the design of this groove grid, these notches are symmetrical or asymmetrical. Accordingly, the shell decomposes by the tensile stresses caused by the hoop stress upon expansion of the sheath into one or two splitter sizes. In this way it has become possible to dissect a not pre-notched shell controlled in two types of chips.
  • the groove grid determines the splitter size of the split chips in a controlled manner. In the document, however, no indication is given as to how a targeted switch to other different splitter sizes could be done with this method.
  • a warhead is described in which a further initiating device is arranged on the longitudinal axis.
  • the targeted fragmentation is based here on superposition of detonation fronts of a plurality of pellets, which are stored in a cylindrical holder within the explosive charge. Further information will not be given.
  • the US 2003/164109 A1 relates to a warhead with multiple initiators, the timing of which affects the direction of the radially emitted splitter. However, a control of the splitter sizes is not provided.
  • the invention is therefore based on the object of extending the possibility of the target-adapted switchability of the size of the splitter beyond the known method by a further possibility.
  • a third initiating device is fixed or slidably disposed on the longitudinal axis.
  • two different splitter sizes can be generated by adjusting the ignition times of the two initiating devices.
  • a third third initiating device which is either stationary or displaceably mounted on the longitudinal axis of the explosive charge, another possibility arises for producing a further splitter type or at least one selectable one Mixture of two splitter sizes, which, however, are usually smaller than the majority of natural splinters generated with the same configuration.
  • the setting options can be further extended by at least one initiating device being mounted longitudinally displaceable within the explosive charge.
  • at least one initiating device being mounted longitudinally displaceable within the explosive charge.
  • the aforementioned device is supplemented by the fact that at least one detonation shaft link is arranged in the explosive charge in the region of an initiating device. This ensures that there the detonation waves run approximately grazing along the inside of the inner shell, whereby the desired effects of the formation or non-formation of notches in the outer shell are again supported.
  • the groove grid creates symmetrical or asymmetrical notches in the outer shell of the warhead. In the subsequent expansion of the shell, this decomposes at the notches, which act as predetermined breaking points, in the desired splitter sizes.
  • a switchability to two or more different splitter sizes can be realized in the manner described below.
  • notches through the groove grid of the inner shell IH depends on various design parameters. These are to be optimized so that the notch depth in the envelope MH of the warhead is sufficient for proper disassembly. Now, if a significant design parameter is changed in a direction in which the notch effect is greatly affected, the controlled decomposition is insufficient or not given.
  • FIG. 1 The principle of this procedure is in FIG. 1 shown schematically simplified.
  • a significant parameter is the orientation of the detonation front 1, 2, 3 after the initiation of one of the initiation sites, represented by the igniter chains ZK1, ZK2, relative to the orientation of the groove grating NG.
  • the reference numerals 1, 2, 3 are snapshots of the movement of the detonation front in the temporal sequence designated.
  • the groove grid NG is constructed asymmetrically. It should generate deep notches in the envelope MH as soon as the detonation front of "left to right" runs (ignition chain ZK1). The notches obtained in this way allow the shell MH to be broken down into controlled fragments.
  • the groove grid NG is specially designed for the needs of switchability.
  • FIG. 2 shows various examples of slot grid variants NG.
  • Other variants derived therefrom in an advantageous manner are possible, but should not be discussed further here. That in the FIGS. 2a, 2d shown symmetrical groove system is used for the implementation of the invention in an asymmetric groove system according to the FIGS. 2b, 2c transferred. In this case, the effect of accelerated metal webs, the asymmetric inflow of detonation swaths or a spike formation analogously to shaped charges are utilized for the production of notches.
  • roof sheeting DF as in FIG. 3 are sketched out.
  • roof sheeting DF can, for example, with so-called roof sheeting DF, as in FIG. 3 are sketched out.
  • These in turn can be made of plastic films or metal foils such as copper in suitable forms. Accordingly, after the ignition of the explosive charge HE, the notches in the envelope MH are generated more by inflowing swaths or more by impacting metal particles.
  • the notch effect in certain groove grids depends in a particular way on the orientation of the detonation front, as for example in the case of the hollow charge effect exploiting roof sheeting FIG. 3 the case is.
  • symmetrical notches After ignition of the explosive charge HE symmetrical notches produce two shear bands and asymmetrical notches only one in tensile load. This is in FIG. 4 indicated. In this way, asymmetric notches KA result in only one type of splitter A ( FIG. 4a ), with symmetrical notches KU with two shear bands, however, two types of splitter A and B ( FIG. 4b ).
  • a third mode results in "false" orientation of the detonation front with insufficient notch effect KK.
  • the shell decomposes neither into A nor B splinters, but into natural splinters ( Figure 4c ).
  • the notch depth t must be in a certain ratio to the shell thickness d in order to ensure sufficient fragmentation.
  • the notch depth t must be at least 10 - 20% of the shell thickness d.
  • the distances a of the notches must be sufficiently large in relation to the shell thickness. It should be approximately: d ⁇ a ⁇ 5d.
  • FIG. 6 exemplified another embodiment.
  • the detonation front 1, 2, 3 is formed by detonation waveguide DWL so that it strikes the inner shell IH grazing.
  • the groove grid NG is designed (asymmetrically) to favor one of these grazing directions (ignition of ZK1: from "left to right"), thus causing particularly deep notches in the sleeve MH.
  • the notch effect is only insufficient. This is indicated by corresponding arrows running diagonally through the groove.
  • FIG. 7 Finally, the inventive design of the active charge is sketched.
  • ZK1 generates asymmetric notches and thus only A-splitter
  • ZK3 generates symmetrical notches and thus A and B splitter according to FIG. 4b
  • ZK2 is so unfavorably positioned that only insufficient notches are created during the detonation of the explosive charge HE. In this mode natural splinters are generated.
  • a target-adapted selection of the producible fragments is possible.
  • the above-mentioned time delays in the initiation of the individual ignition chains can additionally be used to control the splitter sizes.
  • FIG. 7 already three ignition chains are shown with correspondingly three different types of splitters.
  • any time-initiating delays within the three ignition chains can be generated according to any but exactly defined mixtures in the respective splitter locations. This allows an exceptionally high flexibility and thus adaptation to the target structure and hardness.
  • Another possibility for influencing would be the displaceability of one or more ignition chains along the longitudinal axis of the explosive charge indicated by dashed lines, which in turn makes it possible to adjust the mixing ratio of different splitter sizes.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Die Bonding (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (3)

  1. Tête de combat comprenant une charge explosive (HE) avec une enveloppe (MH) formant des éclats et une enveloppe intérieure (IH) disposée à l'intérieur de celle-ci, deux dispositifs d'initiation (ZK1, ZK2) diamétralement opposés sur l'axe longitudinal de la charge explosive (HE) se trouvant dans la zone de la charge explosive (HE), lesquels peuvent être mis à feu individuellement et/ou avec un intervalle de temps réglable, et l'enveloppe intérieure (IH) présentant sur sa surface faisant face à l'enveloppe (MH) formant des éclats une pluralité de rainures (N) disposées de manière distribuée, asymétriques en référence à leur section transversale du point de vue d'une verticale sur la surface de l'enveloppe intérieure et orientées de la même façon du point de vue de leur position par rapport au premier dispositif d'initiation (ZK1) et orientées dans une direction préférentielle, caractérisée en ce qu'un troisième dispositif d'initiation (ZK3) est disposé dans la zone entre les premier et deuxième dispositifs d'initiation (ZK1, ZK2), en position fixe ou de manière à pouvoir se déplacer sur l'axe longitudinal.
  2. Tête de combat selon la revendication 1, caractérisée en ce qu'au moins un dispositif d'initiation (ZK1, ZK2, ZK3) est monté à l'intérieur de la charge explosive (HE) de manière à pouvoir se déplacer dans le sens de la longueur.
  3. Dispositif selon la revendication 1, caractérisé en ce qu'au moins un dispositif de guidage des ondes de détonation (DWL) est disposé dans la charge explosive (HE) dans la zone des dispositifs d'initiation (ZK1, ZK2).
EP09015024.4A 2008-12-05 2009-12-04 Tête militaire à fragmentation Active EP2194354B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008060737A DE102008060737A1 (de) 2008-12-05 2008-12-05 Verfahren und Vorrichtung zur Erzeugung unterschiedlicher Splittergrößen

Publications (3)

Publication Number Publication Date
EP2194354A2 EP2194354A2 (fr) 2010-06-09
EP2194354A3 EP2194354A3 (fr) 2013-07-03
EP2194354B1 true EP2194354B1 (fr) 2015-06-03

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EP09015024.4A Active EP2194354B1 (fr) 2008-12-05 2009-12-04 Tête militaire à fragmentation

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EP (1) EP2194354B1 (fr)
DE (2) DE102008060737A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2651653C1 (ru) * 2017-03-01 2018-04-23 Владимир Владимирович Кореньков Осколочный модуль, осколочная облицовка и средство поражения с осколочным действием

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010048570B4 (de) * 2010-10-18 2014-10-30 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Umschaltbare Wirkladung
EP2442065B1 (fr) * 2010-10-18 2017-03-29 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Charge active commutable
IL222989A (en) * 2012-11-12 2016-02-29 Israel Aerospace Ind Ltd Combat head
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)
DE102014011702B3 (de) * 2014-08-07 2016-02-11 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Zündeinrichtung für eine Splitterladung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030164109A1 (en) * 2002-03-01 2003-09-04 Spivak Timothy L. Polar ejection angle control for fragmenting warheads

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4745864A (en) * 1970-12-21 1988-05-24 Ltv Aerospace & Defense Company Explosive fragmentation structure
US5040464A (en) * 1977-05-31 1991-08-20 The United States Of America As Represented By The Secretary Of The Navy Controlled fragmentation with fragment mix
DE10130324B4 (de) 2001-06-22 2005-03-24 TDW Gesellschaft für wehrtechnische Wirksysteme mbH Splittererzeugender Gefechtskopf
DE10151573B4 (de) * 2001-10-23 2004-04-29 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Splitterschutz zur Minimierung von Kollateralschäden
FR2868523B1 (fr) * 2004-03-30 2008-06-27 Giat Ind Sa Enveloppe de fragmentation pour charge explosive
DE102006048299B3 (de) * 2006-10-12 2008-09-25 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Zylindrische Wirkladung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030164109A1 (en) * 2002-03-01 2003-09-04 Spivak Timothy L. Polar ejection angle control for fragmenting warheads

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2651653C1 (ru) * 2017-03-01 2018-04-23 Владимир Владимирович Кореньков Осколочный модуль, осколочная облицовка и средство поражения с осколочным действием

Also Published As

Publication number Publication date
EP2194354A3 (fr) 2013-07-03
DE102008060737A1 (de) 2010-06-10
DE202008017750U1 (de) 2010-06-10
EP2194354A2 (fr) 2010-06-09

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