EP2735837A1 - Process for controlling the effect of a warhead - Google Patents

Process for controlling the effect of a warhead Download PDF

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Publication number
EP2735837A1
EP2735837A1 EP14000584.4A EP14000584A EP2735837A1 EP 2735837 A1 EP2735837 A1 EP 2735837A1 EP 14000584 A EP14000584 A EP 14000584A EP 2735837 A1 EP2735837 A1 EP 2735837A1
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EP
European Patent Office
Prior art keywords
explosive charge
charge
explosive
liquid
warhead
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
EP14000584.4A
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German (de)
French (fr)
Other versions
EP2735837B1 (en
Inventor
Werner Dr. Arnold
Norbert Dr. Eisenreich
Gesa Langer
Armin Kessler
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
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TDW Gesellschaft fuer Verteidigungstechnische Wirksysteme mbH
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Publication of EP2735837A1 publication Critical patent/EP2735837A1/en
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Publication of EP2735837B1 publication Critical patent/EP2735837B1/en
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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
    • F42B12/207—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 characterised by the explosive material or the construction of the high explosive warhead, e.g. insensitive ammunition
    • 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
    • F42B12/208—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 characterised by a plurality of charges within a single high explosive warhead
    • 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
    • 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

Definitions

  • the invention relates to a method for power control of a warhead, the cylindrical explosive charge having a defined porosity, wherein the pore spaces are filled with a liquid, wherein a press-in pressure is applied controlled to the liquid.
  • the particular advantage of an explosive charge according to the invention is the high safety during storage and transport.
  • the porous explosive charge is very safe prior to pressurization because the explosive charge has a density well below the so-called critical density, which is the limit for detonation capability.
  • critical density which is the limit for detonation capability.
  • FIG. 1 shows another solution concept for the desired compaction of a porous charge PHE.
  • the porous explosive PHE is open-pore.
  • a liquid explosive reservoir LHE is separated from the porous charge PHE by an impermeable rupturable membrane M.
  • a plunger P which is slidably mounted in the metal shell MH of the charge, arranged.
  • the pressure piston is subjected to pressure D, whereby the membrane is destroyed.
  • the liquid explosive LHE is forced through the open pores into the free volume of the porous charge.
  • the area of the charge whose pores are filled is then the detonable explosive charge HE.
  • the initiation of this explosive charge takes place by means of a priming chain ZK 2 arranged opposite the original reservoir or by means of a separate ignition chain, not shown here, arranged inside the charge HE.
  • LHE liquid explosives have been known for a long time and can therefore be selected according to their parameters, which are particularly suitable for this application.
  • the loading of the plunger P with pressure D in the direction of the arrow can be done in the context of expert action in many ways. If high speed is required, pyrotechnic aids, such as propellants, can be used. Also the Engine pressure of a missile can be guided and used accordingly. With lower speed requirements, mechanical or electrical drives can also be used.
  • the condition applies that the complete compaction of the porous charge part PHE does not have to be awaited until initiation can take place via the further ignition charge ZK 2. Rather, a central detonation signal can also be brought to the already compressed part of the charge HE and ignited at the desired time from this detonating chain, for example via a further ignition or detonation cord. Thus, a further flexibility of the metering of the charge is achieved.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Air Bags (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Medicinal Preparation (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

The method involves compressing a part of an explosive charge (PHE) by application of pressure. The controlling begins from a side of the explosive charge, toward the centerline for effective compression of the explosive charge, which has a low density below the explosion border, and a consolidated higher density, which lies over the explosion border. An independent claim is included for a device for controlling power of a warhead.

Description

Die Erfindung betrifft ein Verfahren zur Leistungssteuerung eines Gefechtskopfes, dessen zylindrische Sprengladung eine definierte Porosität aufweist, wobei die Porenräume mit einer Flüssigkeit aufgefüllt werden, wobei ein Einpressdruck gesteuert auf die Flüssigkeit aufgebracht wird.The invention relates to a method for power control of a warhead, the cylindrical explosive charge having a defined porosity, wherein the pore spaces are filled with a liquid, wherein a press-in pressure is applied controlled to the liquid.

Aus den Patentschriften DE 100 08 914 C2 und DE 102 27 002 B4 ist bereits ein Gefechtskopf bekannt geworden, bei dem die Leistung des Gefechtskopfes mittels mechanischer Zerlegung zumindest eines Teils der Sprengladung in einem weiten Bereich dosiert werden kann. Hierbei wird die Tatsache genutzt, dass eine Sprengladung nicht mehr zur Detonation fähig ist sobald die Dichte der Sprengladung eine kritische Grenze unterschritten hat. Die Sprengladung behält jedoch bis zur beschriebenen mechanischen Zerlegung ihre volle Leistungsfähigkeit.From the patents DE 100 08 914 C2 and DE 102 27 002 B4 is already known a warhead, in which the performance of the warhead can be metered by mechanical decomposition of at least a portion of the explosive charge in a wide range. Here, the fact is used that an explosive charge is no longer capable of detonation as soon as the density of the explosive charge has fallen below a critical limit. The explosive charge, however, retains its full capacity until the described mechanical disassembly.

Die US 5 067 995 A beschreibt ein Verfahren zur Leistungssteuerung eines Gefechtskopfes. Die Sprengladung des Gefechtskopfes weist eine definierte Porosität auf. Die Hohlräume der Poren werden mit einer Flüssigkeit gefüllt, wobei der Einpressen der Flüssigkeit aufgebrachte Druck gesteuert wird.The US 5 067 995 A describes a method for power control of a warhead. The explosive charge of the warhead has a defined porosity. The cavities of the pores are filled with a liquid, wherein the pressing of the liquid applied pressure is controlled.

Demgegenüber liegt der vorliegenden Erfindung die Aufgabe zugrunde, eine vorteilhafte Alternative zu entwickeln, welche sich vor der Initiierung quasi wie eine inerte Ladung verhält, bzw. bei ungewollter Zündung maximal eine niedrige deflagrative Leistung abgibt wobei die Leistung des Gefechtskopfes bis kurz vor der Detonation gesteuert werden kann.In contrast, the present invention has the object to develop an advantageous alternative, which behaves quasi like an inert charge prior to initiation or emits a maximum deflagration power at unwanted ignition while the performance of the warhead are controlled until shortly before detonation can.

Diese Aufgabe wird erfindungsgemäß durch das beschriebene Verfahren gelöst.This object is achieved by the method described.

Mit dem im Anspruch beschriebenen Verfahren kann in vorteilhafter Weise die poröse Sprengladung, die eine niedrige Dichte unterhalb der Detonationsgrenze aufweist, mittels gesteuertem axialem Einpressdruck wenigstens teilweise mittels des füssigen Sprengstoffes auf eine höhere Dichte verdichtet werden, die über der Detonationsgrenze liegt. Dieser Teil der Sprengladung lässt sich dann mittels einer weiteren Zündeinrichtung detonativ umsetzen. Im Ausgangszustand ist diese Sprengladung aufgrund ihrer Dichte nur deflagrativ initiierbar. Je weiter jedoch die Beaufschlagung mit Einpressdruck fortschreitet um so mehr Poren der Sprengladung werden über die Detonationsgrenze hinaus gefüllt. Durch geschickte Wahl des Zündzeitpunkts der Sprengladung ergibt sich daraus eine Steuerung der detonativen Wirkung der Sprengladung im Bereich von 0 bis 100 %. Im Fall eines splitterbildenden Gefechtskopfes kann somit die Splittererzeugung in weiten Grenzen eingestellt werden.With the method described in the claim can advantageously the porous explosive charge, which has a low density below the detonation limit has, by means of controlled axial injection pressure at least partially by means of the liquid explosive to be compressed to a higher density, which is above the detonation limit. This part of the explosive charge can then be implemented detonatively by means of another ignition device. In the initial state, this explosive charge due to their density can only be initiated deflagrativ. However, the further the application of pressure increases, the more pores of the explosive charge are filled beyond the detonation limit. By skillful choice of the ignition timing of the explosive charge, this results in a control of the detonative effect of the explosive charge in the range of 0 to 100%. In the case of a fragment-forming warhead thus splinter production can be adjusted within wide limits.

Der besondere Vorteil einer erfindungsgemäßen Sprengladung ist die hohe Sicherheit bei Lagerung und Transport. Die poröse Sprengladung ist vor der Druckbeaufschlagung sehr sicher, weil die Sprengladung eine Dichte aufweist, die deutlich unterhalb der so genannten kritischen Dichte liegt, die die Grenze für die Detonationsfähigkeit darstellt. Somit können die Bedingungen für die Safety Tests ohne Probleme erfüllt werde und die Klassifikation einer solchen Sprengladung ist wesentlich unkritischer.The particular advantage of an explosive charge according to the invention is the high safety during storage and transport. The porous explosive charge is very safe prior to pressurization because the explosive charge has a density well below the so-called critical density, which is the limit for detonation capability. Thus, the conditions for the safety tests can be fulfilled without any problems and the classification of such an explosive charge is much less critical.

In vorteilhafter Weise erfolgt die Beaufschlagung mit Einpressdruck mit Hilfe einer an der Stirnseite der zylindrischen Ladung anliegenden inerten Platte, die beispielsweise mittels einer weiteren geeigneten Sprengladung in Richtung Sprengladung hin beschleunigt wird und letztere damit komprimiert.Advantageously, the application of pressure by means of a force applied to the end face of the cylindrical charge inert plate, which is accelerated for example by means of another suitable explosive charge in the direction of explosive charge and the latter thus compressed.

Verwendung findet hierbei ein Abteils mit flüssigem Sprengstoff, welches im Sprengladungsgehäuse zwischen der zu komprimierenden porösen Sprengladung und einer als Druckübertrager dienenden inerten Platte platziert ist. Die Platte wird zum geeigneten Zeitpunkt mit Druck beaufschlagt und presst den flüssigen Sprengstoff in die Poren der porösen Sprengladung.Use here is a compartment with liquid explosive, which is placed in the explosive charge housing between the porous explosive charge to be compressed and serving as a pressure transducer inert plate. The plate is pressurized at the appropriate time and forces the liquid explosive into the pores of the porous explosive charge.

Ausführungsbeispiele der Erfindung sind in den Figuren der Zeichnung schematisch vereinfacht dargestellt, wobei sich die Merkmale der Erfindung nicht auf die gezeigten Beispiele beschränken. Es zeigen:

Fig. 1:
eine Sprengladung mit offenporigem Sprengstoff und einem Reservoir mit flüssigem Sprengstoff,
Fig. 2:
eine Sprengladung nach Figur 1 in der Kompressionsphase.
Embodiments of the invention are shown schematically simplified in the figures of the drawing, wherein the features of the invention are not limited to the examples shown. Show it:
Fig. 1:
an explosive charge with open-pored explosive and a reservoir with liquid explosives,
Fig. 2:
an explosive charge after FIG. 1 in the compression phase.

In den Figuren der Zeichnung Anordnungen zur Durchführung des erfindungsgemäßen Verfahrens zur Leistungssteuerung eines Gefechtskopfes dargestellt und in der nachfolgenden Beschreibung erläutert. Aus der Darstellung in den Figuren ergibt sich jedoch keine Beschränkung auf genau diese Ausführungsformen.In the figures of the drawing arrangements for carrying out the method according to the invention for power control of a warhead shown and explained in the following description. From the illustration in the figures, however, there is no restriction to exactly these embodiments.

Die Figur 1 zeigt ein weiteres Lösungskonzept für die gewünschte Verdichtung einer porösen Ladung PHE. Es wird hierbei vorausgesetzt, dass der poröse Sprengstoff PHE offenporig ist. Im Ausgangszustand der Ladung ist ein Reservoir mit flüssigen Sprengstoff LHE von der porösen Ladung PHE durch eine undurchlässige zerreißbare Membran M getrennt. Auf der der Membran gegenüberliegenden Seite des Reservoirs ist ein Druckstempel P, der in der Metallhülle MH der Ladung verschiebbar gelagert ist, angeordnet. Gemäß Figur 2 wird der Druckstempel mit Druck D beaufschlagt, wodurch die Membran zerstört wird. Gleichzeitig wird der flüssige Sprengstoff LHE durch die offenen Poren in das freie Volumen der porösen Ladung gedrückt. Der Bereich der Ladung, dessen Poren gefüllt sind, ist dann die detonationsfähige Sprengladung HE. Die Initiierung dieser Sprengladung erfolgt mittels einer dem ursprünglichen Reservoir gegenüber angeordneten Zündkette ZK 2 oder mit Hilfe einer innerhalb der Ladung HE angeordneten, hier nicht dargestellten eigenen Zündkette.The FIG. 1 shows another solution concept for the desired compaction of a porous charge PHE. It is assumed here that the porous explosive PHE is open-pore. In the initial state of the charge, a liquid explosive reservoir LHE is separated from the porous charge PHE by an impermeable rupturable membrane M. On the opposite side of the membrane of the reservoir, a plunger P, which is slidably mounted in the metal shell MH of the charge, arranged. According to FIG. 2 the pressure piston is subjected to pressure D, whereby the membrane is destroyed. At the same time, the liquid explosive LHE is forced through the open pores into the free volume of the porous charge. The area of the charge whose pores are filled is then the detonable explosive charge HE. The initiation of this explosive charge takes place by means of a priming chain ZK 2 arranged opposite the original reservoir or by means of a separate ignition chain, not shown here, arranged inside the charge HE.

Flüssige Sprengstoffe LHE sind seit langem bekannt und können deshalb anhand ihrer für diese Anwendung besonders geeigneten Parameter ausgewählt werden.LHE liquid explosives have been known for a long time and can therefore be selected according to their parameters, which are particularly suitable for this application.

Die Beaufschlagung des Druckstempels P mit Druck D in der gezeichneten Pfeilrichtung kann im Rahmen des fachmännischen Handelns auf vielfältige Weise erfolgen. Falls eine hohe Geschwindigkeit erforderlich ist, können pyrotechnische Hilfsmittel, wie beispielsweise Treibladungen, eingesetzt werden. Auch der Triebwerksdruck eines Flugkörpers kann entsprechend geführt und eingesetzt werden. Bei geringeren Anforderungen hinsichtlich der Geschwindigkeit können auch mechanische oder elektrische Antriebe eingesetzt werden.The loading of the plunger P with pressure D in the direction of the arrow can be done in the context of expert action in many ways. If high speed is required, pyrotechnic aids, such as propellants, can be used. Also the Engine pressure of a missile can be guided and used accordingly. With lower speed requirements, mechanical or electrical drives can also be used.

Für alle hier beschriebenen Beispiele beziehungsweise die gleichartig wirkenden Ausführungsformen gilt die Bedingung, dass nicht die vollständige Verdichtung des porösen Ladungsteils PHE abgewartet werden muss, bis über die weitere Zündkette ZK 2 die Initiierung erfolgen kann. Vielmehr kann auch von dieser Zündkette beispielsweise über eine weitere Zünd- oder Detonationsschnur ein zentrales Detonationssignal an den bereits verdichteten Teil der Ladung HE herangeführt und zum gewünschten Zeitpunkt gezündet werden. Damit wird eine weitere Flexibilität der Dosierbarkeit der Ladung erreicht.For all examples described here or the embodiments having the same effect, the condition applies that the complete compaction of the porous charge part PHE does not have to be awaited until initiation can take place via the further ignition charge ZK 2. Rather, a central detonation signal can also be brought to the already compressed part of the charge HE and ignited at the desired time from this detonating chain, for example via a further ignition or detonation cord. Thus, a further flexibility of the metering of the charge is achieved.

Claims (1)

Verfahren zur Leistungssteuerung eines Gefechtskopfes, dessen zylindrische Sprengladung eine definierte Porosität aufweist, wobei die Porenräume mit einer Flüssigkeit aufgefüllt werden, wobei ein Einpressdruck gesteuert auf die Flüssigkeit aufgebracht wird, dadurch gekennzeichnet, dass - die Flüssigkeit ein flüssiger Sprengstoff (LHE) ist, - der im Sprengladungsgehäuse angeordnet ist und der auf der einen Seite über eine Membran (M) an der zu komprimierenden Sprengladung (PHE) und - auf der anderen Seite an einer beweglich gelagerten inerten Platte (P) anliegt. A method for power control of a warhead, the cylindrical explosive charge having a defined porosity, wherein the pore spaces are filled with a liquid, wherein a press-in pressure controlled on the liquid is applied, characterized in that - the liquid is a liquid explosive (LHE), - Is arranged in the explosive charge housing and on the one hand via a membrane (M) on the explosive charge to be compressed (PHE) and - On the other side of a movably mounted inert plate (P) is applied.
EP14000584.4A 2008-06-11 2009-06-04 Process for controlling the effect of a warhead Active EP2735837B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810027900 DE102008027900B4 (en) 2008-06-11 2008-06-11 Method and device for power control of a warhead
EP20090007372 EP2133654B1 (en) 2008-06-11 2009-06-04 Process for controlling the effect of a warhead

Related Parent Applications (2)

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EP20090007372 Division EP2133654B1 (en) 2008-06-11 2009-06-04 Process for controlling the effect of a warhead
EP20090007372 Division-Into EP2133654B1 (en) 2008-06-11 2009-06-04 Process for controlling the effect of a warhead

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EP2735837A1 true EP2735837A1 (en) 2014-05-28
EP2735837B1 EP2735837B1 (en) 2016-11-30

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GB0904929D0 (en) * 2009-03-23 2009-05-06 Qinetiq Ltd Novel munition
EP2442065B1 (en) * 2010-10-18 2017-03-29 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Switchable explosive charge
DE102014011702B3 (en) * 2014-08-07 2016-02-11 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Ignition device for a splinter charge
DE102014014332B3 (en) * 2014-10-01 2016-03-17 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Apparatus and method for the controlled fragmentation by means of temperature-activated Kerbladungen
DE102014018218B4 (en) 2014-12-06 2023-05-17 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Device for the controlled initiation of the deflagration of an explosive charge
DE102021002470B4 (en) 2021-05-10 2023-09-21 TDW Gesellschaft für verteidigungstechnische Wirksysteme mit beschränkter Haftung Scalable active system and warhead
BE1029150B1 (en) * 2021-07-26 2022-09-26 Univ Anhui Sci & Technology Cooperative explosive charge structure and method of loading the same

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DE3016861A1 (en) * 1980-05-02 1981-11-12 Messerschmitt-Bölkow-Blohm GmbH, 8000 München AMMUNITION WITH A SHELL FOR SPLITTERING
US5067995A (en) * 1989-06-15 1991-11-26 The United States Of America As Represented By The United States Department Of Energy Method for enhancing stability of high explosives, for purposes of transport or storage, and the stabilized high explosives
DE19821150C1 (en) 1998-05-12 1999-10-28 Daimler Chrysler Ag Detonative deformable bursting charge useful in guided war heads
WO2002003011A1 (en) * 2000-07-03 2002-01-10 Bofors Defence Ab A device for warhead charges for cargo ammunition units
DE102005031588B3 (en) 2005-07-06 2007-01-11 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Controllable charge of a warhead

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US4955939A (en) * 1983-03-02 1990-09-11 The United States Of America As Represented By The Secretary Of The Navy Shaped charge with explosively driven liquid follow through
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DE10227002B4 (en) * 2002-06-18 2005-06-16 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Decomposition charge for a warhead
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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3016861A1 (en) * 1980-05-02 1981-11-12 Messerschmitt-Bölkow-Blohm GmbH, 8000 München AMMUNITION WITH A SHELL FOR SPLITTERING
US5067995A (en) * 1989-06-15 1991-11-26 The United States Of America As Represented By The United States Department Of Energy Method for enhancing stability of high explosives, for purposes of transport or storage, and the stabilized high explosives
DE19821150C1 (en) 1998-05-12 1999-10-28 Daimler Chrysler Ag Detonative deformable bursting charge useful in guided war heads
WO2002003011A1 (en) * 2000-07-03 2002-01-10 Bofors Defence Ab A device for warhead charges for cargo ammunition units
DE102005031588B3 (en) 2005-07-06 2007-01-11 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Controllable charge of a warhead

Also Published As

Publication number Publication date
ES2537637T3 (en) 2015-06-10
ES2616132T3 (en) 2017-06-09
DE102008027900A1 (en) 2009-12-17
EP2133654A2 (en) 2009-12-16
EP2133654B1 (en) 2015-03-18
EP2735837B1 (en) 2016-11-30
DE102008027900B4 (en) 2013-07-04
EP2133654A3 (en) 2013-08-21

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