EP2455702B1 - Protection d'un objet contre les charges creuses - Google Patents

Protection d'un objet contre les charges creuses Download PDF

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Publication number
EP2455702B1
EP2455702B1 EP12000856.0A EP12000856A EP2455702B1 EP 2455702 B1 EP2455702 B1 EP 2455702B1 EP 12000856 A EP12000856 A EP 12000856A EP 2455702 B1 EP2455702 B1 EP 2455702B1
Authority
EP
European Patent Office
Prior art keywords
rods
projectile
object protection
protective layer
protection according
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
EP12000856.0A
Other languages
German (de)
English (en)
Other versions
EP2455702A1 (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 Schweiz 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 Schweiz AG filed Critical RUAG Schweiz AG
Priority to EP12000856.0A priority Critical patent/EP2455702B1/fr
Publication of EP2455702A1 publication Critical patent/EP2455702A1/fr
Application granted granted Critical
Publication of EP2455702B1 publication Critical patent/EP2455702B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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 a property protection against unguided and / or flying in the subsonic area, shaped charges having medium caliber bullets with front axially arranged electric Aufzungszündern with surface-shaped connecting lines to Zündkette, the object protection having a protective layer arranged in a matrix, protruding from a surface rods, said diagonal distance (a) between the bars is smaller than the caliber (K) of the active bullet and greater than the top of the bullet.
  • Both of the aforementioned protective arrangements have the disadvantage that they probably reduce the destructive effect of the projectiles, for example an impinging and ignited hollow charge, to some degree, but can not prevent their initiation.
  • the rods are made of steel, that the tips of the rods are sharp-edged for penetration into the hood of the Mittelkalibergeunteres and made of hardened steel, that these rods protrude over an area of the protective layer, wherein the free length of the Rods is greater than the entire length of a hood of the projectile, measured from the tip of the impact fuze to the largest diameter of a lining of the hollow charge of the central caliber 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 individual 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, as is known, leads to a considerable reduction of their jet power and / or only to 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.
  • end faces of the rods are provided with obtuse-angled cones which terminate in sharp points, or if these end faces are provided with a central, sharp-edged pin, this in many cases also leads to a direct, vertical impact of the projectile nose on a rod an immediate destruction of the piezocrystal in the impact fuze.
  • fragmentation of the crystal means that the necessary ignition voltage is undershot, so that the initiation of the charge does not occur.
  • 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.
  • blast processing laser, water jet, etc.
  • flat material sheet metal
  • FIG. 1 1 is 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 l 1 .
  • a bullet 100 in the direction of flight F impinging on an object O to be protected penetrates with its impact fuze 102 between the rods 3.
  • 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 piezo 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; see partial section illustration in Fig. 1 ,
  • the total length l 0 of the hood 101 measured from the tip of the impact fuze 102 to the largest diameter of a lining 104 of a shaped charge 103 is shorter than the free length l 1 of the rods 3.
  • 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 can be activated before the hood 101 is pierced, so that further protective measures in the protective layer 1 are imposed.
  • Fig. 3 shows a similar situation, but here the probability of ignition of the shaped charge is already much smaller, since a rod 3 has already pierced the hood 101 before touching the Auftschzünders 102 with another rod and shorted.
  • Fig. 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 a destruction are extremely high surface pressures, ie pulses such as those caused by a blunt cone 5 with a sharp-edged tip 6 (FIG. Fig. 4a ) or by a sharp-edged pin 7 of 1 to 2 mm in diameter ( Fig. 4b ) be achieved.
  • ie pulses such as those caused by a blunt cone 5 with a sharp-edged tip 6 (FIG. Fig. 4a ) or by a sharp-edged pin 7 of 1 to 2 mm in diameter ( Fig. 4b ) be achieved.
  • Fig. 5 Based on the knowledge from the FIGS. 2 and 3 are according to Fig. 5 the rods 3 at an inclination angle ⁇ inserted into the base plate 2, in which case a fictitious flight direction F f was assumed, which corresponds to the threat situation.
  • the inner surface of the base plate 2 is again denoted by 2 '. This allows, like Fig. 5 shows, also optimally protect inclined surfaces.
  • Fig. 6 shows a protective layer 1 with an inner crush layer 8 made of a corrugated perforated steel sheet, which can absorb kinetic energy if the projectile obliquely penetrates and / or its charge is ignited.
  • the effect of a shaped charge jet is reduced even then, because the optimal distance to the target, ie the object to be protected O, is exceeded by 2 to 3 times the caliber (stand off). So that the effective length l 1 (see. Fig. 1 ) of the bars 3 is not exceeded, the highest position of the surface 2 ', ie the "wave peaks" of the layer 8 is selected as a measurement basis.
  • the rods are 3 by a Lightweight foam 9 (commercial polymer) covered. Covers 10 are made of thin-walled aluminum plates on the side.
  • the object is after Fig. 7 constructed, here the crush layer 8 consists of a composite plate of metal and plastics.
  • the measuring base, the surface 2 ', for the length l 1 of the rods 3 is marked here.
  • Fig. 6 is an all-round coverage of the modular protective layer 1 with UV-resistant plastic plates.
  • Fig. 8 are on an armored vehicle 110, the windscreens with a protective layer 1, which is transparent and adjustable.
  • the rods 3 which can be tilted in rows R1 to Rn and in lateral bearings 13 'can be adjusted to the current threat situation by means of a drive 13 with articulated connections 12.
  • the drive 13 is installed in a known roof protection 16 and therefore shown in dashed lines.
  • FIG. 1 is a particularly, weight-saving development drawn.
  • 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 l 1 length and wear metallic tips 3 '.
  • As a galvanically conductive layer offers a hard coating as possible m, which in present case optionally consists of titanium carbonitride (TiCN) or titanium nitride (TiN).
  • 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 “Radarquerites", ie it contributes little to the radar detection and does not affect the other means for "camouflage".
  • Rods in this embodiment are mainly for movable protective layers, analog Fig. 8 intended.
  • An armed tracked vehicle Fig. 9
  • an armored infantry fighting vehicle 111 for a protected troop transport is provided with modular protective layers 1 according to FIG Fig. 7 equipped.
  • the two movable optical sensors 112 are protected against direct bombardment by adapted side covers 10 (protective layers), with integrated rods 3.
  • adapted side covers 10 protection layers
  • integrated rods 3 for illustrative reasons here is also the existing lightweight foam layer, see. Fig. 6 and 7 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 intakes 17 are provided with rods 3 and thus protected.
  • a protective layer 1 ' consists of a steel net known per se Fig. 10 , in whose node 14 rods 3 are used.
  • the rods 3 are protected by means of a respective gusset plate 15 from twisting.
  • a respective gusset plate 15 is the measurement base for the length of the bars 3, the surface 2 ', which corresponds to the maximum height of the gusset plates 15.
  • Welding points are not shown the gusset plates 15, which give the rods 3 the necessary stability.
  • the node lobes 15 take over together with the mesh of the network 2a, the function of a plate 2, 2 '; see. Fig. 1 to Fig. 7 , In contrast to a plate, however, a net 2a can easily be adapted to the spatial forms of an object to be protected.
  • the bars 3 "of a protective layer are made of individual metal strips 50 which have been cut out by means of laser blasting (laser)
  • the height of the metal strips 50 corresponds to the length l 1 plus a web width 51 adapted to the construction, which determines depending on the base plate or carrier R1-Rn
  • recesses A were cut out FIG. 11 not shown - non-positively welded together.
  • the sheet metal used for the rods 3 " is steel sheet of a few millimeters in thickness, also high-strength aluminum sheets can be used.This is also a known beam processing 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 Quetene) and curved surfaces can be occupied by a protective layer without gaps.
  • the after Fig. 11 realized protective coatings are characterized - compared to conventional protective measures - by a relatively low basis weight of 40 kg / m 2 (average).
  • 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 adapted in an analogous manner to the object to be protected already existing means against the detection by means of electromagnetic radiation or it can be integrated.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Laminated Bodies (AREA)
  • Elimination Of Static Electricity (AREA)

Claims (6)

  1. Protection d'objet contre des projectiles de calibre moyen (100) non guidés et/ou volant dans le domaine subsonique, comprenant des charges creuses (103), pourvue d'un capot (101) et de détonateurs à impact (102) électriques disposés de manière axiale côté avant et dotés de lignes de liaison de forme plane menant à la chaîne d'allumage, dans laquelle la protection d'objet comprend une couche de protection comprenant des tiges (3, 3") disposées en forme de matrice, faisant saillie d'une surface, dans laquelle la distance diagonale (a) entre les tiges (3) est plus petite sur le calibre (K) du projectile actif (100) et est plus grande que la pointe (102) du projectile (100), dans laquelle les tiges (3, 3") sont produites à partir d'acier, dans laquelle les pointes des tiges (3, 3") sont réalisées de manière à présenter des arêtes vives et sont constituées d'un acier durci de manière à parvenir à une pénétration dans le capot (101) du projectile de calibre moyen (100), dans laquelle lesdites tiges font saillie d'une surface (2') de la couche de protection (1), dans laquelle la longueur libre (l1) des tiges (3) est plus grande que la longueur totale (l0) d'un capot (101) du projectile (100) mesurée depuis la pointe du détonateur à impact (102) jusqu'au diamètre le plus grand d'un habillage (104) de la charge creuse (103) du projectile de calibre moyen (100).
  2. Protection d'objet selon la revendication 1, caractérisée en ce que les tiges (3) sont recouvertes de leur côté frontal (3') extérieur par au moins une couche (9 ; 10) extérieure plane et continue.
  3. Protection d'objet selon l'une quelconque des revendications 1 ou 2, caractérisée en ce que les côtés frontaux (3') des tiges (3) comprennent des cônes (5) à angle obtus, qui se terminent en des pointes (6) acérées.
  4. Protection d'objet selon l'une quelconque des revendications 1 à 3, caractérisée en ce que les côtés frontaux (3') des tiges (3) sont décalés et présentent un téton (7) central à arêtes vives.
  5. Protection d'objet selon l'une quelconque des revendications 1 à 4, caractérisée en ce que les tiges (3) font saillie d'une plaque (2) massive.
  6. Protection d'objet selon l'une quelconque des revendications 1 à 4, caractérisée en ce que les tiges (3) font saillie des noeuds (14 ; 15) d'un filet en acier (1').
EP12000856.0A 2008-12-29 2009-12-19 Protection d'un objet contre les charges creuses Active EP2455702B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12000856.0A EP2455702B1 (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
EP12000856.0A EP2455702B1 (fr) 2008-12-29 2009-12-19 Protection d'un objet contre les charges creuses
EP09775088A EP2382437B1 (fr) 2008-12-29 2009-12-19 Protection d'objet contre des charges creuses et procédé de fabrication

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP09775088A Division EP2382437B1 (fr) 2008-12-29 2009-12-19 Protection d'objet contre des charges creuses et procédé de fabrication
EP09775088.9 Division 2009-12-19

Publications (2)

Publication Number Publication Date
EP2455702A1 EP2455702A1 (fr) 2012-05-23
EP2455702B1 true EP2455702B1 (fr) 2014-12-31

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
EP12000856.0A Active EP2455702B1 (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
EP12000857.8A Active EP2455703B1 (fr) 2008-12-29 2009-12-19 Protection d'un objet contre les charges creuses
EP09775088A Active EP2382437B1 (fr) 2008-12-29 2009-12-19 Protection d'objet contre des charges creuses et procédé de fabrication

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
EP12000855.2A Active EP2455701B1 (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
EP09775088A Active EP2382437B1 (fr) 2008-12-29 2009-12-19 Protection d'objet contre des charges creuses et procédé de fabrication

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
ES2406759T3 (es) 2013-06-10
EP2202478A1 (fr) 2010-06-30
US8578833B2 (en) 2013-11-12
EP2455702A1 (fr) 2012-05-23
EP2455701B1 (fr) 2013-09-04
US20140190342A1 (en) 2014-07-10
EP2382437B1 (fr) 2013-02-20
EP2455703A1 (fr) 2012-05-23
US9074851B2 (en) 2015-07-07
EP2382437A1 (fr) 2011-11-02
DK2382437T3 (da) 2013-05-27
PL2382437T3 (pl) 2013-07-31
AU2009335617A1 (en) 2011-07-21
US8701541B2 (en) 2014-04-22
CA2747532A1 (fr) 2010-07-08
EP2455703B1 (fr) 2014-08-13
CA2747532C (fr) 2017-07-11
HRP20130435T1 (hr) 2013-06-30
US20110252955A1 (en) 2011-10-20
US20140041190A1 (en) 2014-02-13
WO2010075637A1 (fr) 2010-07-08
EP2455701A1 (fr) 2012-05-23

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