EP2382437A1 - Protection d'objet contre des charges creuses et procédé de fabrication - Google Patents

Protection d'objet contre des charges creuses et procédé de fabrication

Info

Publication number
EP2382437A1
EP2382437A1 EP09775088A EP09775088A EP2382437A1 EP 2382437 A1 EP2382437 A1 EP 2382437A1 EP 09775088 A EP09775088 A EP 09775088A EP 09775088 A EP09775088 A EP 09775088A EP 2382437 A1 EP2382437 A1 EP 2382437A1
Authority
EP
European Patent Office
Prior art keywords
protective layer
rods
layer according
protected
bars
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
EP09775088A
Other languages
German (de)
English (en)
Other versions
EP2382437B1 (fr
Inventor
Marc Radstake
Hanspeter Kaufmann
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.)
RUAG Schweiz AG
Original Assignee
RUAG Land Systems AG
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 RUAG Land Systems AG filed Critical RUAG Land Systems AG
Priority to PL09775088T priority Critical patent/PL2382437T3/pl
Priority to EP09775088A priority patent/EP2382437B1/fr
Priority to EP12000856.0A priority patent/EP2455702B1/fr
Priority to EP12000857.8A priority patent/EP2455703B1/fr
Priority to EP12000855.2A priority patent/EP2455701B1/fr
Publication of EP2382437A1 publication Critical patent/EP2382437A1/fr
Application granted granted Critical
Publication of EP2382437B1 publication Critical patent/EP2382437B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/023—Armour plate, or auxiliary armour plate mounted at a distance of the main armour plate, having cavities at its outer impact surface, or holes, for deflecting the projectile
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0492—Layered armour containing hard elements, e.g. plates, spheres, rods, separated from each other, the elements being connected to a further flexible layer or being embedded in a plastics or an elastomer matrix
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24058—Structurally defined web or sheet [e.g., overall dimension, etc.] including grain, strips, or filamentary elements in respective layers or components in angular relation

Definitions

  • the present invention relates to an object contactor against unguided and / or subsonic mid-caliber projectiles with axially arranged electrical impact detonators with surface-shaped connecting lines to the detonating chain, wherein the object to be protected has a protective layer with a matrix-shaped protruding from a surface having metallic bodies.
  • Asymmetric warfare area type RPG-7, with various shaped charges. While the early systems had mechanical impact igniters, the newer ones are equipped with front piezoelectric igniters and have flat, electrically conductive interconnections between the igniter and the igniter. These relatively simple, mostly rocket-propelled medium caliber projectiles are distributed worldwide and represent a huge potential for danger; They are cheap to buy, easy to handle and are used in many different ways and mobile objects, especially used against lightly armored vehicles.
  • the bodies are formed as rods or pins, wherein at least their surfaces in the end region remote from the object to be protected are electrically conductive, that these rods or pins protrude beyond an upper inner surface of the protective layer that the diagonal distance between the bars smaller than the caliber of the active projectile and greater than the top of the projectile.
  • the surface mentioned in the claim may be flat or any space surface.
  • the support of the rods or pins can be done in the area and / or the rods can be fixed behind it in a solid plate.
  • the characteristics of the arrangement of the rods or pins allow the projectile a partial penetration of the hood into the matrix. Surprisingly, the ignition function is disturbed so massively immediate that in most cases no initiation of the charge takes place. If in some cases an ignition takes place, the optimum distance (stand-off) of the shaped charge to the target is exceeded in the case of precision charges, which is known to result in a considerable reduction of their jet power and / or only a mere burnup. In conjunction with conventional protective measures (passive and / or active armor), the object is sufficiently protected even in such cases.
  • Prerequisites for the prevention of initiation of the ignition are rods or pins that are galvanically conductive at least in the part directly acted upon by the projectile.
  • the threat situation and the probable trajectory of a projectile for projecting the bars is taken into account, in which the bars are arranged at an angle to the surface which corresponds to the probable presumptive direction of flight on the object to be protected.
  • the rods are particularly easy to fix in a solid plate, from which they protrude.
  • a massive plate is very easy to equip with rods and also has the advantage that it is an effective protection against small-caliber ammunition.
  • crumple layer which is preceded by the inner surface mentioned in claim 1 and absorbs part of the kinetic energy of an impinging projectile.
  • a crimped perforated plate made of sheet steel or a multilayer composite plate has proven successful. Particularly advantageous are crush layers in combination with massive deposits, which have a high dispersion effect for a shaped charge jet. This includes the presence of a layer of a metallic sponge.
  • the rods of a non or only slightly electrically conductive material and have in their end a galvanically conductive Coating on.
  • blast processing laser, water jet, etc.
  • flat material sheet metal
  • a method for the particularly economical production of a protective layer is that are cut out of a metal strip at equal intervals surfaces with a U-shaped contour, so that rods remain with a web. For this purpose, punching tools can be used.
  • the rod-shaped metal strips are protective; the webs are only the support and take over the task of a plate.
  • the cut-out metal strips are placed with their web on support and connected to these non-positively.
  • cutouts are also cut at equal intervals.
  • FIG. 1 shows the principle for preventing the initiation of a shaped charge by means of a protective layer, wherein as a variant, a galvanically conductive rod is present only in one end region,
  • Fig. 3 is another illustration of an obliquely flying
  • FIG. 6 shows a modular protective layer with internal crumple layer and outer cladding
  • 7 shows a variant of a protective layer with external clothing
  • 8 shows the principle of a visible and adjustable protective layer in front of the windshield of an armored vehicle
  • Fig.10 a protective layer consisting of a steel net with rods inserted into the nodes of the network and
  • Fig. 11 is a lightweight protective layer made of metal strips, which are cut out by means of beam processing.
  • 1 designates a protective layer.
  • rods 3 are used in a matrix-like manner and are fixed on the back side with flanges 4 on the base plate 2.
  • the rods 3 project beyond an inner surface 2 'by a length II.
  • An object 100 striking the object O to be protected in the direction of flight F penetrates between the bars 3 with its impact fuze 102.
  • a thin-walled double hood 101 of the projectile 100 is thereby perforated and electrically short-circuited by the end portions 3b of the rods 3, so that the front-side impact fuse 102 with its piezoelectric sensor can no longer be effective.
  • the double hood 101 is, physically considered, a two-wire planar line for the ignition energy.
  • the diagonal distance a between the bars 3, 3a, 3b of a matrix of a plurality of bars 3 is at a maximum smaller than the caliber K of the active projectile.
  • the double hood 101 is thereby "impaled” and short-circuited, but at least compressed;
  • the entire length Io of the hood 101, measured from the tip of the Auftschzünders 102 to the largest diameter of a lining 104 of a shaped charge 103 is shorter than the free length Ii of the rods 3. This ensures that a hood 101 penetrated into the protective layer 1 is damaged before the impact fuze 102 can be activated.
  • the tips 3 'of the rods 3 are sharp-edged and made of hardened steel and / or have a galvanically conductive coating.
  • Fig. 2 shows the unfavorable case of an obliquely striking the bars 3 projectile, with only the hood 101 and the impact fuze 102 are drawn.
  • the piezo generator may be activated before the Hood 101 is pierced, so that further protective measures imposing in the protective layer 1.
  • Fig. 3 shows a similar situation, but here the probability of ignition of the shaped charge is already much smaller, since a rod 3, the hood 101 has already pierced and shorted before touching the Aufschlagzünders 102 with another rod.
  • FIGS. 4a and 4b show measures to improve the protective effect. It has been shown that piezoelectric impact detonators directly striking the tips 3 'of the bars 3 directly on the front are often completely destroyed before they generate a sufficiently high ignition voltage. The prerequisite for such destruction are extremely high surface pressures, i. Pulses as shown by a blunt cone 5 with a sharp-edged tip 6 (Fig.
  • the rods 3 are inserted into the base plate 2 at an angle of inclination ⁇ , assuming here a fictitious direction of flight F f , which corresponds to the threat situation.
  • the inner surface of the base plate 2 is again denoted by 2 '. This allows, as shown in FIG. 5, also optimally protect inclined surfaces.
  • Fig. 6 shows a protective layer 1 with an inner
  • Crumple layer 8 made of a corrugated perforated metal sheet, which can absorb kinetic energy if the projectile penetrates obliquely and / or its charge is ignited. In this case, even then, the effect of a hollow Reduced charge beam, because the optimal distance to the target, ie the object to be protected O, from 2 to 3 times the caliber (Stand off) is exceeded. So that the effective length li (see FIG. 1) of the bars 3 is not undershot, the highest position of the surface 2 ', ie the "wave peaks" of the layer 8, is selected as the measuring basis. To prevent accidental injury and contamination and before getting caught with any objects (branches, etc.), the bars 3 are covered by a lightweight foam 9 (commercially available polymer). Covers 10 are made of thin-walled aluminum plates on the side.
  • the article is constructed analogously to FIG. 7, wherein here the crush layer 8 consists of a composite plate of metal and plastics. Again, here is the measuring base, the area 2 ', for the length of the rods Ii 3 marked. In contrast to Fig. 6 here is an all-round coverage of the modular protective layer 1 with UV-resistant plastic plates.
  • the in rows Rl to Rn, in side bearings 13 'tiltably arranged rods 3 can be adjusted by a drive 13 with joints 12 on the current threat situation.
  • the drive 13 is installed in a known roof protection 16 and therefore shown in dashed lines.
  • a rod 3a is made of a rigid composite with carbon fibers. To improve the conductivity of this is metallized at its threat facing surface 3a to one third of the total length Ii and wear metallic tips 3 '.
  • the most hardcoat possible is a galvanically conductive layer m, which optionally consists of titanium carbonitride (TiCN) or titanium nitride (TiN) in the present case.
  • TiCN titanium carbonitride
  • TiN titanium nitride
  • the color of the coating is chosen according to the camouflage color of the object.
  • Another advantage of this embodiment is the small “Radarquerexcellent", ie it contributes little to the radar detection and does not affect the other means for "camouflage".
  • Rods in this embodiment are mainly intended for movable protective layers, analogously to FIG. 8.
  • An armed tracked vehicle FIG. 9, an infantry fighting vehicle 111 for a protected troop transport, is equipped with modular protective layers 1 according to FIG.
  • FIGS. 6 and 7 are not shown.
  • Such protective layers 10 are recommended for all inputs and outputs, such as for air inlets and exhaust openings on vehicles or stationary systems.
  • side air inlets 17 are provided with rods 3 and thus protected.
  • Another variant of a protective layer I 1 consists of a known steel net Fig. 10, in the node
  • rods 3 are used.
  • the rods 3 are protected by means of a respective gusset plate 15 from twisting.
  • the measurement basis for the length of the bars 3 is the area 2 ', which is the maximum height of the gusset plates
  • the height of the metal strips 50 corresponds to the length li plus a web width 51 adapted to the construction
  • recesses A were cut out.
  • the parts fitted together in a form-fitting manner are non-positively welded to one another, not shown in Figure 11.
  • the sheet used for the bars 3 " is steel sheet of a few millimeters thickness high-strength aluminum sheets are used.
  • a jet processing also known per se by means of high-pressure water jet application.
  • the webs take over the function of the plate (Fig. 1 to Fig. 7). This variant allows you to equip a property protection at very short notice. With appropriate dimensioning of the webs (bendable Quechanginge) and curved surfaces can be occupied by a protective layer without gaps.
  • the protective layers realized according to FIG. 11 are characterized by a relatively low basis weight of 40 kg / m 2 (average value) compared to conventional protective measures.
  • the subject invention can be adapted within wide limits to the threat situation.
  • the materials and technologies used are conventional and can be substituted by new and better materials, including composites.
  • the article can be in an analogous manner to be protected on
  • the subject of the invention is not limited to projectiles with hollow charges. It can be used against all Geschose whose ignition process is disturbed by an electrically short-circuited or connected to ground, flat connection line. It can be assumed that the nominal ignition energy of an impact fuze on the Initiation of an active charge is necessary and that any remaining partial flows are not sufficient.

Abstract

Des véhicules faiblement blindés et des objets stationnaires sont souvent la cible d'attaques au moyen de projectiles à charge creuse. Contre de telles attaques, on a mis au point de nombreuses variantes de blindage qui se soldent par un poids supplémentaire et requièrent une fabrication complexe. Une couche de protection (1) légère et simple à fabriquer contient des tiges (3) disposées en forme de matrice qui font saillie de l'objet à protéger. Si un projectile à charge creuse correspondant heurte une telle couche de protection (1), sa chemise (101) est endommagée et dans la plupart des cas, l'amorçage de la charge creuse n'a pas lieu. Les tiges (3) sont de préférence recouvertes extérieurement par des couches de polymère (9, 10) et une couche déformable (8) est en plus disposée devant l'objet à protéger.
EP09775088A 2008-12-29 2009-12-19 Protection d'objet contre des charges creuses et procédé de fabrication Active EP2382437B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PL09775088T PL2382437T3 (pl) 2008-12-29 2009-12-19 Zabezpieczenie obiektów przed ładunkami kumulacyjnymi oraz sposób jego wytwarzania
EP09775088A EP2382437B1 (fr) 2008-12-29 2009-12-19 Protection d'objet contre des charges creuses et procédé de fabrication
EP12000856.0A EP2455702B1 (fr) 2008-12-29 2009-12-19 Protection d'un objet contre les charges creuses
EP12000857.8A EP2455703B1 (fr) 2008-12-29 2009-12-19 Protection d'un objet contre les charges creuses
EP12000855.2A EP2455701B1 (fr) 2008-12-29 2009-12-19 Protection d'un objet contre les charges creuses

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP08405315A EP2202478A1 (fr) 2008-12-29 2008-12-29 Protection d'objets contre des charges creuses et procédé de réalisation associé
PCT/CH2009/000407 WO2010075637A1 (fr) 2008-12-29 2009-12-19 Protection d'objet contre des charges creuses et procédé de fabrication
EP09775088A EP2382437B1 (fr) 2008-12-29 2009-12-19 Protection d'objet contre des charges creuses et procédé de fabrication

Related Child Applications (5)

Application Number Title Priority Date Filing Date
EP12000857.8A Division EP2455703B1 (fr) 2008-12-29 2009-12-19 Protection d'un objet contre les charges creuses
EP12000856.0A Division EP2455702B1 (fr) 2008-12-29 2009-12-19 Protection d'un objet contre les charges creuses
EP12000856.0 Division-Into 2012-02-10
EP12000857.8 Division-Into 2012-02-10
EP12000855.2 Division-Into 2012-02-10

Publications (2)

Publication Number Publication Date
EP2382437A1 true EP2382437A1 (fr) 2011-11-02
EP2382437B1 EP2382437B1 (fr) 2013-02-20

Family

ID=40790351

Family Applications (5)

Application Number Title Priority Date Filing Date
EP08405315A Withdrawn EP2202478A1 (fr) 2008-12-29 2008-12-29 Protection d'objets contre des charges creuses et procédé de réalisation associé
EP09775088A Active EP2382437B1 (fr) 2008-12-29 2009-12-19 Protection d'objet contre des charges creuses et procédé de fabrication
EP12000856.0A Active EP2455702B1 (fr) 2008-12-29 2009-12-19 Protection d'un objet contre les charges creuses
EP12000857.8A Active EP2455703B1 (fr) 2008-12-29 2009-12-19 Protection d'un objet contre les charges creuses
EP12000855.2A Active EP2455701B1 (fr) 2008-12-29 2009-12-19 Protection d'un objet contre les charges creuses

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP08405315A Withdrawn EP2202478A1 (fr) 2008-12-29 2008-12-29 Protection d'objets contre des charges creuses et procédé de réalisation associé

Family Applications After (3)

Application Number Title Priority Date Filing Date
EP12000856.0A Active EP2455702B1 (fr) 2008-12-29 2009-12-19 Protection d'un objet contre les charges creuses
EP12000857.8A Active EP2455703B1 (fr) 2008-12-29 2009-12-19 Protection d'un objet contre les charges creuses
EP12000855.2A Active EP2455701B1 (fr) 2008-12-29 2009-12-19 Protection d'un objet contre les charges creuses

Country Status (9)

Country Link
US (3) US8578833B2 (fr)
EP (5) EP2202478A1 (fr)
AU (1) AU2009335617A1 (fr)
CA (1) CA2747532C (fr)
DK (1) DK2382437T3 (fr)
ES (1) ES2406759T3 (fr)
HR (1) HRP20130435T1 (fr)
PL (1) PL2382437T3 (fr)
WO (1) WO2010075637A1 (fr)

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Also Published As

Publication number Publication date
HRP20130435T1 (hr) 2013-06-30
US20140041190A1 (en) 2014-02-13
WO2010075637A1 (fr) 2010-07-08
PL2382437T3 (pl) 2013-07-31
US9074851B2 (en) 2015-07-07
EP2455703B1 (fr) 2014-08-13
US20140190342A1 (en) 2014-07-10
AU2009335617A1 (en) 2011-07-21
EP2455701B1 (fr) 2013-09-04
US8578833B2 (en) 2013-11-12
US20110252955A1 (en) 2011-10-20
EP2202478A1 (fr) 2010-06-30
EP2455702B1 (fr) 2014-12-31
EP2382437B1 (fr) 2013-02-20
EP2455701A1 (fr) 2012-05-23
EP2455703A1 (fr) 2012-05-23
EP2455702A1 (fr) 2012-05-23
US8701541B2 (en) 2014-04-22
DK2382437T3 (da) 2013-05-27
CA2747532C (fr) 2017-07-11
ES2406759T3 (es) 2013-06-10
CA2747532A1 (fr) 2010-07-08

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