EP2442066A2 - Charge active commutable - Google Patents

Charge active commutable Download PDF

Info

Publication number
EP2442066A2
EP2442066A2 EP11008290A EP11008290A EP2442066A2 EP 2442066 A2 EP2442066 A2 EP 2442066A2 EP 11008290 A EP11008290 A EP 11008290A EP 11008290 A EP11008290 A EP 11008290A EP 2442066 A2 EP2442066 A2 EP 2442066A2
Authority
EP
European Patent Office
Prior art keywords
pellets
charge
ignition device
diameter
splinter
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
Application number
EP11008290A
Other languages
German (de)
English (en)
Other versions
EP2442066B1 (fr
EP2442066A3 (fr
EP2442066B8 (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
Application filed by TDW Gesellschaft fuer Verteidigungstechnische Wirksysteme mbH filed Critical TDW Gesellschaft fuer Verteidigungstechnische Wirksysteme mbH
Publication of EP2442066A2 publication Critical patent/EP2442066A2/fr
Publication of EP2442066A3 publication Critical patent/EP2442066A3/fr
Publication of EP2442066B1 publication Critical patent/EP2442066B1/fr
Application granted granted Critical
Publication of EP2442066B8 publication Critical patent/EP2442066B8/fr
Not-in-force legal-status Critical Current
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

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 support with a plurality of distributed arranged pellets is arranged, with a first end-side arranged ignition device, which corresponds to a plate-shaped Mattertragerladung in the area Detonationswellenscher is arranged, and a further ignition device, which is positioned in the longitudinal axis of the active charge, the ignition devices are independently initiated, and a triggering method for a switchable active charge of a warhead, which has a splitter-forming shell and an active charge and a tubular Holder with a plurality of distributed arranged pellets, wherein the effective charge is triggered either with a first end side arranged ignition device korrespondi with a plate-shaped Kochtragerladung ert, in whose area a detonation waveguide is arranged, as well as alternatively with at least one further ignition device which is positioned in the region of the longitudinal axis of the active
  • the Applicant has already disclosed various concepts of metered or switchable active charges whose functionality has been recognized.
  • a cylindrical active charge with a splinter-forming shell has become known. This has a concentric within the charge arranged tubular support which carries a plurality of distributed arranged pellets.
  • the effective charge is equipped with a first end-side arranged ignition device which corresponds to a plate-shaped fürtragerladung.
  • a detonation shaft link In the area of the transformer charge there is a detonation shaft link, by means of which the initiation proceeding from the first ignition device is conducted via the transformer charge and then strikes the effective charge in the region of the shell.
  • 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.
  • an active charge with a holder for pellets is such that upon ignition of the further ignition device whose shock wave passes through the holder and on to the casing.
  • the shock wave is delayed somewhat while the pellets ignite immediately and form their own shock waves, which overlap with the shock wave from the further ignition device and form a pattern of detonation fronts. Therefore, disassembly of the envelope material according to the pattern of the pressure peaks occurs in the envelope. it produces splinters in adjustable size.
  • the diameters of the pellets are approximately 1 to 10 mm, and that the ratio of the distance between the centers of adjacent pellets to their diameter is greater than 1 but less than 5 (1 ⁇ a / d ⁇ 5).
  • the envelope is dimensioned with respect to the charge diameter, the curvature of the envelope, the fragment side length, the splinter thickness and the parameters typical for the material of the envelope such that the envelope properties are in the region of the limit curve (decomposition / non-decomposition) of the envelope Limit curve for the respective material of the envelope is defined by the ratios of fragment side length to the charge diameter and splinter side length to splinter thickness.
  • pellets are stochastically distributed with regard to their diameter and / or their mutual distances, or the pellets are arranged in a systematic manner on the holder.
  • Finest fragments are produced according to the invention if the ratio of the distance between the centers of adjacent pellets to their diameter is greater than 1 but smaller than 3 (1 ⁇ a / d ⁇ 3).
  • the object is also achieved in that upon initiation of the first ignition device, the detonation front over the Mattertragerladung radially outward, is deflected on the shell and then grazing along the holder and thus causes the production of large preformed or natural splitter, and that upon initiation the further ignition device by means of the radially propagating detonation front, which is arranged with the detonation waves of the small and spaced apart small pellets superimposed, in the shell of a detonation front with closely juxtaposed Druckmaximas and Druckminimas is present, which causes a disassembly of the shell in a variety of small and smallest splinters.
  • FIG. 1 is simplified one embodiment of a cylindrical warhead for fragmentation shown.
  • the main charge SP is surrounded by a metallic shell H, which may also be pre-stamped for the production of shaped fragments.
  • a first ignition device Z1 is provided for preferentially generating axial detonation fronts in the main charge, as well as a further ignition device Z2 for generating predominantly radial detonation fronts.
  • a detonation waveguide DL in the vicinity of the ignition Z1 prevents direct ignition to the main charge SP. Rather, the detonation front is guided to the envelope H via a transfer plate ÜL and then spreads along the envelope H in the axial direction.
  • the detonation waveguide DL can be designed, for example, layered. With alternate use of teflon and copper layers, a very compact design can be achieved.
  • the holder PH for the plurality of pellets P is disposed within the main charge.
  • Previously described applications of such pellet holders were dimensioned such that the superimposition of the detonation front arriving from the ignition device Z2 initiates the pellets P and then forms a new modulated detonation front by superimposing the fronts, which ultimately results in the controlled disassembly of the envelope H according to the location of the interferences the detonation front leads.
  • the object of the present invention is, however, to initiate the shell optionally in splinter mode by means of the ignition device Z1 or to break down the envelope H into fine and finest fragments in order to avoid collateral damage.
  • This development goal is achieved according to the invention not only by reducing the diameter and the mutual distances of the pellets P, but play the typical parameters of the shell material together with the dimensioning of the pellets a crucial role.
  • the detonation front runs from the ignition device Z2 through the pellet holder PH and after passing through this holder no longer forms a structured but a stochastic and thus a rough detonation front characterized by the narrow distribution of relative maxima and minima is. This stimulates the decomposition into very small fragments or fragments in suitable materials of the shell in these.
  • Necessary is a careful coordination between the roughness of the detonation front on the one hand and the specific choice of the material parameters of the envelope H on the other hand.
  • Certain types of steel have been found to work well in the practice of the invention, but materials such as molybdenum or tungsten have also shown good results.
  • Sintered materials can be tailored to suit their suitability by sintering and Sinterart specifically for this application and adapt.
  • the FIG. 2 shows a so-called limit curve of the material decomposition into fragments using the material chosen as an example tungsten heavy metal (WSM).
  • WSM tungsten heavy metal
  • the registered points are results from various tests of fragmentation charges.
  • the limit curve (dashed line) between the areas of splinter decomposition (above the limit curve) and non-decomposition (below the limit curve) can be set for each material typically below the choice of said parameters.
  • the ratios s / D, s / t of fragment side length s to the charge diameter D and of splitter side length s to the chip thickness t influence quite substantially.
  • the splitter parameters can also be selected so that they are in the range of FIG. 2 represented limit curve between the non-decomposition and the fragmentation decomposition come to lie.
  • material parameters such as, for example, the sintering parameter and / or the splitter geometries
  • the splitter parameters can also be selected so that they are in the range of FIG. 2 represented limit curve between the non-decomposition and the fragmentation decomposition come to lie.
  • pellet samples There are versatile designs of pellet samples conceivable. It is not compulsory to use stochastically distributed pellets; even tightly packed pellet structures with numerous stress peaks and thus pronounced pressure and stress gradients can be used.
  • the in FIG. 3 mode shown corresponds to the known type of initiation of such active charge.
  • the ignition device Z1 is activated.
  • the detonation front DFL runs - as shown in dashed lines - around the layered detonation wave guide to the hull H and is deflected at right angles.
  • the active charge can be switched to at least one further ignition device Z2.
  • further ignition devices Z3, Z4-not shown- may be provided, which are likewise arranged in the region of the longitudinal axis A.
  • the detonation front DFR spreads radially outward and passes through the pellet holder PH.
  • the numerous initiation points are superimposed, as a result of which the detonation front DF is forced to have the desired roughness in its structure.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Press Drives And Press Lines (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
EP11008290.6A 2010-10-18 2011-10-14 Charge active commutable Not-in-force EP2442066B8 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010048570 DE102010048570B4 (de) 2010-10-18 2010-10-18 Umschaltbare Wirkladung

Publications (4)

Publication Number Publication Date
EP2442066A2 true EP2442066A2 (fr) 2012-04-18
EP2442066A3 EP2442066A3 (fr) 2015-01-07
EP2442066B1 EP2442066B1 (fr) 2018-03-21
EP2442066B8 EP2442066B8 (fr) 2018-05-16

Family

ID=44872143

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11008290.6A Not-in-force EP2442066B8 (fr) 2010-10-18 2011-10-14 Charge active commutable

Country Status (3)

Country Link
EP (1) EP2442066B8 (fr)
DE (1) DE102010048570B4 (fr)
ES (1) ES2671221T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011010351A1 (de) 2011-02-04 2012-08-09 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Umschaltbare Wirkladung
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)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006048299B3 (de) 2006-10-12 2008-09-25 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Zylindrische Wirkladung

Family Cites Families (4)

* 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
DE102008037917B4 (de) * 2008-08-14 2014-04-30 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Umschaltbare zylindrische Wirkladung
DE202008017750U1 (de) * 2008-12-05 2010-06-10 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH 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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006048299B3 (de) 2006-10-12 2008-09-25 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Zylindrische Wirkladung

Also Published As

Publication number Publication date
DE102010048570B4 (de) 2014-10-30
EP2442066B1 (fr) 2018-03-21
DE102010048570A1 (de) 2012-04-19
ES2671221T3 (es) 2018-06-05
EP2442066A3 (fr) 2015-01-07
EP2442066B8 (fr) 2018-05-16

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