EP1635133B1 - Aktive Gegenmassnahmenvorrichtung - Google Patents

Aktive Gegenmassnahmenvorrichtung Download PDF

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Publication number
EP1635133B1
EP1635133B1 EP05466013A EP05466013A EP1635133B1 EP 1635133 B1 EP1635133 B1 EP 1635133B1 EP 05466013 A EP05466013 A EP 05466013A EP 05466013 A EP05466013 A EP 05466013A EP 1635133 B1 EP1635133 B1 EP 1635133B1
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EP
European Patent Office
Prior art keywords
metal liner
hardkill
thickness
initiatory
projectile
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
EP05466013A
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English (en)
French (fr)
Other versions
EP1635133A3 (de
EP1635133A2 (de
Inventor
Stanislav Rolc
Karel Soukup
Frantisek Pospisil
Miroslav Stancl
Zbynek Akstein
Ladislav Riha
Jaroslav Buchar
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.)
VOP-026 Sternberk sp
Original Assignee
VOP-026 Sternberk sp
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Publication date
Application filed by VOP-026 Sternberk sp filed Critical VOP-026 Sternberk sp
Publication of EP1635133A2 publication Critical patent/EP1635133A2/de
Publication of EP1635133A3 publication Critical patent/EP1635133A3/de
Application granted granted Critical
Publication of EP1635133B1 publication Critical patent/EP1635133B1/de
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B1/00Explosive charges characterised by form or shape but not dependent on shape of container
    • F42B1/02Shaped or hollow charges
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B1/00Explosive charges characterised by form or shape but not dependent on shape of container
    • F42B1/02Shaped or hollow charges
    • F42B1/032Shaped or hollow charges characterised by the material of the liner

Definitions

  • the invention concerns a hardkill active protection countermeasure, in particular, the protection of tracked and wheeled armoured vehicles and stationary equipment and especially the protection against high velocity projectiles.
  • the reactive protection is usually applied as add on armouring in form of modules initiated at projectile impact.
  • the modules of reactive protection are commonly designed as a steel armour plate accelerated by explosive energy etc.
  • the active armouring (DAS - Defense Aid Suite or APS - Active Protection System) represents the systems of protection, which are able to detect and track the incoming threats with following avoidance of weapon hit or reduction of their effect.
  • the principle of so-called soft kill systems is based on the use of electromagnetic jamming, decoy and use of false signals. The goal of these techniques is avoiding the missile hit of the vehicle.
  • the function of hard kill systems of active protection is focused on destruction, deviation or eventual damage of the missile before its target impact.
  • active protection represents (further in text) the systems of hard kill type. Detection and tracking systems (microwave and infra-red) are components of the active protective system.
  • the counter-munition could have a form of high explosive charges - fragments, large number of small axial symmetrical EFP or shape charges, bars or "flying" plates accelerated explosively or electro-magnetically.
  • the document US 5625160 describes protective device fitted on the structure placed on the front side of protected armour vehicle.
  • the device consists of two parallel plates with accelerating device placed between them.
  • the plates are explosively or electromagnetically fired in mutually opposite directions against attacking projectiles.
  • the document US 6244156 describes another kind of protection based on firing the high explosive energy shell against the attacking threat, especially against KE projectile. Monitoring and control unit belonging to protected object determines an optimal timing for shell firing.
  • Another active protection consisting of at least one module equipped by shape charge and monitoring, control and firing unit is known from document US 6227955 .
  • the control system provides start reaction of given shape charges consequently destroying attacking projectile in the case of emergency.
  • Protective device formed from explosive charge intended for accelerating the metal block(s) against attacking projectile is known from document US 2003164087 .
  • the blocks are designed into the shape of long bars with length size equal or larger than 10x the smallest profile dimension.
  • the blocks are accelerated in accordance with signal from monitoring and control unit.
  • the countermeasure is formed from two main parts, container represents the first one with at least one launcher for fragmenting charge.
  • the second one consists of control and tracking unit. Fragments are defeating the incoming warhead.
  • the system consists of independent modules, which are formed from plates or tubes fitted with conductive strips.
  • the contact between the strip and attacking projectile is detected by the control unit, which provides appropriate countermeasure.
  • Such countermeasure can be performed by means of module plates motion or explosive acceleration of other elements against projectile.
  • the document EP 922924 describes object protection based on acceleration of elements of different shapes against incoming projectile.
  • the elements can be accelerated by chemical, mechanical, pneumatic or hybrid way with possibility of accelerating to different directions.
  • the system consists of boxes formed from two plates segregated by explosive.
  • the box also contains additional explosive and fuse for plate acceleration.
  • the monitoring system locates approaching projectile, the box is activated and plates accelerated against projectile.
  • the document DE 4122622 deals with protective system employing pyrotechnically or electromagnetically ejected armour plate against the incoming projectile after its detection.
  • This system consists of electromagnetic sandwich, which is composed of protective elements, device for protective elements activation and acceleration and sensor intended for tracking of attacking projectile.
  • the protected object is fitted with main and additional armour.
  • There is a space between armours and additional armour is equipped with acceleration device.
  • the armour is explosively accelerated in following matter. After the projectile impact, the additional armour is accelerated in the direction of main armour, which leads to decrease of relative velocity of impact to additional armour.
  • the explosion of initiatory elongated charge forms the metal liner into a profile of "axe-like" shape. This profile, when fired against the moving projectile, destroys, bends or diverts the projectile.
  • the metal liner is to advantage composed of appropriately shaped metal stripe.
  • the minimum density of the material is 7.8 g/cm3, which is density minimally equal or higher than density of iron.
  • the material must show high plasticity, proved by minimal ductility of 20%.
  • Such material could be represented by commercially pure iron, low carbon unalloyed steel, commercially pure tantalum and tantalum alloys, commercially pure molybdenum and molybdenum alloys, commercially pure wolfram and wolfram alloys, commercially pure copper and copper alloys or commercially pure nickel and nickel alloys.
  • the metal liner can be manufactured from material with lower density than density of iron. In such case the optimal or even the highest possible effect of the hard kill active protection countermeasure according to invention may not be reached.
  • the shaped stripe of the liner is to advantage created in the following way.
  • the rounding can be performed by way of cylindrical, oval or similar surface, the cranking by way of one or two bends (from 90 to 180°). Both forming, rounding and cranking, can be possibly combined.
  • the metal liner is thus open at the side en face the initiatory elongated charge. This fact supports explosive forming of linear projectile profile as a hard kill active protection countermeasure according to invention. Nevertheless, the metal liner could be in principle formed even by flat stripe.
  • the metal liner is in its standard design formed by stripe, which is at least 3x longer than wide.
  • the metal liner (or stripe, which is the liner formed from) can vary in its thickness along the cross section.
  • the metal liner is generally thickest in its middle part and the thickness is decreasing in the direction to longer edges. Thickness of the edges can vary from 0.1 to 1.0 multiple of the maximum liner thickness.
  • the elongated charge is often formed from disruptive plastic explosive with minimal hexogen (RDX) or oktogen (HMX) content of 80 % by weight and detonation velocity over 7000 m/s.
  • the amount of explosive is to be set according to final ballistic coefficient (the ratio between explosive weight and metal liner weight), which is supposed to be min. 1.2.
  • the explosive layer can vary in its thickness along the cross section.
  • the explosive layer is generally thickest in its middle part and the thickness is decreasing in the direction to longer edges.
  • the thickness of the edges can vary from 0.1 to 1.0 multiple of the maximum explosive thickness.
  • the hardkill active protection countermeasure according to invention is a powerful tool when protecting vehicles or stationary objects.
  • the explosively formed linear projectile profile can by means of interactions violate the integrity of long-rod projectile, missile with shaped charge or EFP or change their trajectory.
  • the hardkill active protection countermeasure ( Fig. 1 ), which does not form part of the claimed invention consists of linear projectile profile formed by explosion from metal liner 1 by means of initiatory plastic explosive elongated charge 2.
  • the initiatory elongated charge 2 is placed at the back of the metal liner 1.
  • the metal liner 1 is a flat stripe manufactured from plain low carbon steel with opening angle 180°.
  • the initiatory elongated charge 2 is made from plastic explosive with hexogen content of 88 % by weight and detonation velocity 7850 m/s.
  • the length of the metal liner stripe 1 is 250 mm, width 33 mm and thickness 3 mm.
  • the thickness of the initiatory charge 2 is 30 mm.
  • the hardkill active protection countermeasure ( Fig. 2 ) consists of linear projectile profile formed by explosion from metal liner 1 by means of initiatory plastic explosive elongated charge 2.
  • the initiatory elongated charge 2 is placed at the back of the metal liner 1.
  • the metal liner 1 is the shaped stripe manufactured from nickel alloy containing 72 % by weight of nickel, 15 % by weight of chromium, 8 % by weight of iron, 0.8 % by weight of manganese and usual accompanying elements and impurities.
  • the stripe is cranked in the direction of its longitudinal axis (90°).
  • the initiatory elongated charge 2 is made from plastic explosive with hexogen content of 88 % by weight.
  • the length of the metal liner stripe 1 is 250 mm, width 27 mm and thickness 2.5 mm.
  • the thickness of the initiatory charge 2 is 22 mm.
  • the hardkill active protection countermeasure ( Fig. 3 ) consists, same as previous examples, of linear projectile profile formed by explosion from metal liner 1 by means of initiatory plastic explosive elongated charge 2.
  • the initiatory elongated charge 2 is placed at the back of the metal liner 1.
  • the metal liner 1 is the shaped stripe manufactured from commercially pure copper of variable thickness.
  • the stripe is cranked in the direction of its longitudinal axis (angle 150°).
  • the initiatory elongated charge 2 is also made from plastic explosive with hexogen content of 88 % by weight and its thickness is variable.
  • the length of the metal liner stripe 1 is 250 mm, width 35 mm.
  • the thickness is maximal in the axis of the bend, where it reaches 3 mm and it is regularly reduced to 0.3 mm at the edges.
  • the thickness of the initiatory charge 2 is maximal in the axis of the bend, where it is 30 mm and it is regularly reduced to 3 mm at the edges.
  • the hardkill active protection countermeasure ( Fig. 4 ) is similar to previous examples.
  • the metal liner 1 consists of shaped stripe made from nickel alloy containing 65 % by weight of nickel, 31 % by weight of copper, 2 % by weight of iron, 1.5 % by weight of manganese and usual accompanying elements and impurities.
  • the stripe is doubly cranked in the direction of its longitudinal axis (150°).
  • the initiatory elongated charge 2 is made from plastic explosive with oktogen content of 88 % by weight and detonation velocity 8 100 m/s.
  • the length of the metal liner stripe 1 is 250 mm, width 36 mm and thickness 2 mm.
  • the length of the side wings, created by cranking, is 8 mm.
  • the thickness of the initiatory elongated charge 2 is 25 mm in the whole cross-section.
  • the hardkill active protection countermeasure ( Fig. 5 ) differs from the previous examples in its design.
  • the metal liner 1 consists of shaped stripe made from commercially pure tantalum, which is rounded in the direction of its longitudinal axis. The radius of rounding is 85 mm.
  • the initiatory elongated charge 2 is made from plastic explosive with oktogen content of 90 % by weight and detonation velocity 8 200 m/s.
  • the length of the metal liner stripe 1 is 250 mm, width 34 mm and thickness 1.5 mm.
  • the thickness of the initiatory elongated charge 2 is 28 mm in the whole cross-section.
  • the hardkill active protection countermeasure according to invention has a wide use, especially as an element of sensor operated systems intended for protection against moving missiles.

Claims (4)

  1. Aktive Gegenmaßnahmenvorrichtung auf der Basis eines durch die Explosion errichtetes Projektils, die gegen den gefährdenden Schuß vor dessen Aufschlag auf das zu schützende Ziel abgefeuert wurde, die insbesondere für gepanzerte Raupen- und Räderfahrzeuge und eine stationäre Technik bestimmt ist, dadurch gekennzeichnet, daß es aus einem linearen Projektilprofil besteht, welches durch Explosion aus einer Metalleinlage (1) mittels einer auslösenden gestreckten Ladung (2) aus plastischem Sprengstoff mit minimalem Volumen an Hexogen oder Octogen von 80 Gew.-% erstellt wird, mit der Detonierungsgeschwindigkeit mehr als 7000 m/s und dem Wert des ballistischen Koeffizienten mindestens 1,2, der an hinterer Wand der Metalleinlage (1) angepasst ist, wobei die Metalleinlage (1) durch einen geformten Streifen aus einem metallischen Material mit der minimale Dichtigkeit von 7,8 g/cm3 und der hohe Plastizität, die durch die Dehnbarkeit von 20% oder mehr ausgedrückt wird, gebildet wird, und der geformte Streifen der Metalleinlage (1) ist in der Richtung seiner Längsachse mindestens einmal gerundet, oder mit rechtem oder stumpfem Winkel gebogen.
  2. Aktive Gegenmaßnahmenvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß in der Basisausführung die Länge des geformten Streifens der Metalleinlage (1) mindestens das Dreifache seiner Breite beträgt.
  3. Aktive Gegenmaßnahmenvorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Metalleinlage (1) von unterschiedlicher Stärke ist, die in der Richtung zu den Rändern hin sich vermindert, wobei die Dicke der Ränder im Ausmaß von 0,1- bis 1,0 des Vielfachen deren größten Dicke liegt.
  4. Aktive Gegenmaßnahmenvorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die auslösende gestreckte Ladung (2) von einer unterschiedlichen Stärke ist, die in der Richtung zu den Rändern hin sich vermindert, wobei die Dicke der Ränder im Ausmaß von 0,1- bis 1,0 des Vielfachen deren größten Dicke liegt.
EP05466013A 2004-09-10 2005-09-07 Aktive Gegenmassnahmenvorrichtung Active EP1635133B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CZ20040950A CZ300472B6 (cs) 2004-09-10 2004-09-10 Prostredek aktivní balistické ochrany

Publications (3)

Publication Number Publication Date
EP1635133A2 EP1635133A2 (de) 2006-03-15
EP1635133A3 EP1635133A3 (de) 2006-04-12
EP1635133B1 true EP1635133B1 (de) 2010-03-03

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Application Number Title Priority Date Filing Date
EP05466013A Active EP1635133B1 (de) 2004-09-10 2005-09-07 Aktive Gegenmassnahmenvorrichtung

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EP (1) EP1635133B1 (de)
AT (1) ATE459853T1 (de)
CZ (1) CZ300472B6 (de)
DE (1) DE602005019663D1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0604408D0 (en) * 2006-03-04 2006-07-12 Alford Res Ltd An explosive charge
US9702668B2 (en) * 2015-01-08 2017-07-11 National Technology & Engineering Solutions Of Sandia, Llc Linear shaped charge

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2031658C3 (de) * 1970-06-26 1979-07-12 Krauss-Maffei Ag, 8000 Muenchen Panzerungswand mit schottähnlichen Kammern
GB2234334B (en) 1980-03-07 1991-06-26 Helmut Nussbaum An apparatus for protecting a moving or stationary object against an approaching projectile.
FR2498312A1 (fr) * 1981-01-22 1982-07-23 Bruge Jean Blindage dynamique
DE4122622C2 (de) 1991-07-09 1994-04-21 Diehl Gmbh & Co Auslöse-Sensor für aktive Schutzeinrichtung
CZ256993A3 (cs) * 1993-11-29 1995-06-14 Hlavni Urad Materialne Technic Aktivní prvek dynamické ochrany
DE4426014B4 (de) 1994-07-22 2004-09-30 Diehl Stiftung & Co.Kg System zum Schutz eines Zieles gegen Flugkörper
DE4440120C2 (de) 1994-11-10 1998-03-19 Rheinmetall Ind Ag Schutzvorrichtung mit einer reaktiven Panzerung
JPH08178597A (ja) * 1994-12-28 1996-07-12 Nissan Motor Co Ltd 防御弾
DE19505629B4 (de) 1995-02-18 2004-04-29 Diehl Stiftung & Co.Kg Schutzeinrichtung gegen ein anfliegendes Projektil
CZ4129U1 (cs) * 1995-05-05 1995-11-28 Odbor Správy Majetku Mo Sestava dynamické ochrany
CZ213496A3 (cs) * 1996-07-18 1998-03-18 Synthesia A. S. Aktivní prvek dynamické ochrany pancéřové techniky
DE19640991B4 (de) * 1996-10-04 2004-02-26 Diehl Stiftung & Co.Kg Schutzvorrichtung für ein gepanzertes Fahrzeug
DE19754936A1 (de) 1997-12-10 1999-07-01 Wegmann & Co Gmbh Dicht- und Führungseinrichtung für hochdynamisch beschleunigte, abstandswirksame Schutzelemente
DE19847091A1 (de) 1998-10-13 2000-04-20 Diehl Stiftung & Co Verfahren zum Schützen eines Objektes gegen die Einwirkung eines schnellen Projektiles
US6227955B1 (en) 1999-04-20 2001-05-08 Micron Technology, Inc. Carrier heads, planarizing machines and methods for mechanical or chemical-mechanical planarization of microelectronic-device substrate assemblies

Also Published As

Publication number Publication date
CZ2004950A3 (cs) 2006-04-12
CZ300472B6 (cs) 2009-05-27
DE602005019663D1 (de) 2010-04-15
EP1635133A3 (de) 2006-04-12
EP1635133A2 (de) 2006-03-15
ATE459853T1 (de) 2010-03-15

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