EP1715287B1 - Tête de combat et projectile ou missile comprenant une telle tête de combat - Google Patents
Tête de combat et projectile ou missile comprenant une telle tête de combat Download PDFInfo
- Publication number
- EP1715287B1 EP1715287B1 EP05445022A EP05445022A EP1715287B1 EP 1715287 B1 EP1715287 B1 EP 1715287B1 EP 05445022 A EP05445022 A EP 05445022A EP 05445022 A EP05445022 A EP 05445022A EP 1715287 B1 EP1715287 B1 EP 1715287B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stopper
- warhead
- charge unit
- liner
- diameter
- 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
Links
- 239000002360 explosive Substances 0.000 claims abstract description 14
- 206010041662 Splinter Diseases 0.000 claims abstract description 11
- 239000012634 fragment Substances 0.000 claims abstract description 7
- 239000003999 initiator Substances 0.000 claims abstract description 4
- 229910001385 heavy metal Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- 238000013467 fragmentation Methods 0.000 abstract description 16
- 238000006062 fragmentation reaction Methods 0.000 abstract description 16
- 230000001133 acceleration Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000007903 penetration ability Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B1/00—Explosive charges characterised by form or shape but not dependent on shape of container
- F42B1/02—Shaped or hollow charges
- F42B1/024—Shaped or hollow charges provided with embedded bodies of inert material
-
- 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
- F42B12/04—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type
- F42B12/10—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type with shaped or hollow charge
Definitions
- the present invention relates to a warhead comprising a charge unit with an explosive charge, a liner, an initiator and a stopper provided in front of the charge unit to interfere with the liner of the charge unit, the providing of the stopper creating a splinter mode of operation of the warhead.
- the invention also refers to a projectile or missile comprising such a warhead.
- the charge unit may be constituted by a shaped charge or a charge unit explosively forming a projectile (EFP).
- EFP projectile
- a warhead according to the first paragraph based upon the shaped charge principle is previously known from DE 11 28 345 B , wherein a warhead according to the preamble of claim 1 is disclosed.
- a charge jet is generated.
- Such a jet is intended to generate small but deep holes in armour targets.
- By introducing a stopper the penetration ability is decreased and there is a material accumulation with a certain velocity forwards. This results in a wider effect, wider hole, at the target surface.
- no real splinter mode with fragments is obtained.
- a fragmentation capacity is identified.
- the warhead is provided with a splinter shell comprising heavy metal bullets.
- an additional explosive charge adapted to the available space is inserted.
- the fragmentation capacity is mainly due to the additional explosive charge and splinter shell inserted. Creating fragmentation capacity requires several additional rather complex and bulky components to be housed within the warhead.
- the creation of the fragmentation capacity is obtained by using the liner of the comprised charge unit.
- a stopper in front of the charge unit interfering with the liner a splinter mode is created spreading fragments.
- the features essentially characterizing the warhead is that the charge unit is embodied to explosively form a projectile and that the stopper is located at such a distance from the charge unit that the essential part of the acceleration of the liner under influences from explosive gases of the explosive charge has taken place before reaching the stopper creating a splinter mode with fragments spread in desired directions of space.
- Another way of creating fragmentation capacity and supposed to be known without any reference available is to use several initiation points within the explosive charge. This is considered an expensive and complicated method not expected to result in particular advantageous fragmentation.
- a favourable embodiment of the invention is characterized in that the stopper is exchangeable for different stopper embodiments.
- the warhead can be adapted for different requirements of fragmentation structures and spreading by change of stopper. By leaving out the stopper a complete standard charge unit effect is obtained.
- Another way of adapting the warhead to different requirements is to provide the stopper in front of the charge unit such that it can be folded-away to give free way for a projectile.
- the stopper For suitable dimensions of the stopper it is proposed by another preferred embodiment to provide the stopper at a distance in front of the charge unit that exceeds the length of the stopper.
- the embodiment admits the liner to be adequately accelerated before it reaches the stopper resulting in an advantageous fragmentation.
- Other preferred dimensioning of the warhead proposed are that the length of the stopper lies within 0.5 to 5 times the diameter of the warhead and preferably within 0.5 to 1 times the diameter and that the stopper is provided a distance in front of the liner of the charge unit that essentially corresponds to a travelling time of the liner within a time interval of 30 - 150 ⁇ s and preferably 50 - 60 ⁇ s.
- the diameter of the stopper is less than half the diameter of the charge unit. Such a dimensioning has turned out to result in adequate fragmentation and spreading.
- the stopper preferably has a rotational symmetrical shape. This i. a. makes it easier to obtain a balanced embodiment when introducing the stopper into a projectile or missile.
- the stopper may assume many different shapes.
- the stopper is shaped as a circular cylinder.
- the stopper is shaped as a rotation symmetrical body having a first section with a first diameter and a second section with a second diameter different from the first diameter.
- the stopper is shaped as a frustum of a cone.
- the stopper is funnel shaped having its tip directed towards the charge unit.
- the stopper is shaped essentially as a spherical body.
- Advantageous materials to be used for the stopper are i. a. steel and heavy metals such as tungsten.
- the warhead has a charge unit embodied to explosively form a projectile. Interferences between such charge units and stoppers to create fragmentation are easy to arrange for within the envelope of a projectile or missile and it has turned out that such a charge unit in cooperation with the stopper results in an effective fragmentation generation.
- the projectile shown in figure 1 comprises a warhead 2 within its envelope 3 and is provided with fins 4.1, 4.2.
- the warhead 2 includes a charge unit 5 and a stopper 6.
- the charge unit 5 is built up of an explosive charge 7, a liner 8 and an initiator 9.
- the stopper 6, see figure 4 is arranged in the centre of an annular element 10 having branches 11, 12, 13 connecting the periphery of the annular element with the stopper 6.
- the envelope 3 of the projectile is embodied to receive and keep the annular element 10 in position by some kind of conventional locking means and thus not show.
- Dashed lines 23, 24 and 25 in figure 4 indicate how the stopper 6 can be divided into sections in case that the stopper 6 is to be folded away to create free space for a projectile. In such a case the stopper could be rotated around schematically indicated hinge elements 26, 27 and 28 of any suitable known construction.
- Figure 3a-3e shows five different embodiments of the stopper 6 that have been found advantageous with respect to the fragmentation procedure.
- the stopper 6 consists of two circular cylinders 16, 17 having different diameters but a common symmetry axis 18. As indicated in figure 3a the circular cylinder having the shortest diameter is intended to be positioned closest to the charge unit 5. In figure 3b the circular cylinders have changed positions mutually.
- the stopper 6 has the shape of a frustum of a cone 19 turned such that the bottom 20 of the cone is facing the liner 8.
- the stopper 6 is funnel shaped having its tip 21 directed towards the charge unit.
- Figure 3e shows an embodiment of the stopper having an essentially spherical shape 22.
- the shape of the stopper can vary within wide limits and that the particular shape is dependent on i. a. the kind of fragmentation and directions of spreading wanted.
- the simple shape of the circular cylinder of the stopper 6 of figure 1 it is realised that diameter and length can be varied.
- the material used for the stopper such as steel and heavy metals, may be homogenous or non-homogenous in some way. It is also possible to mix different materials.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Radar Systems Or Details Thereof (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Claims (17)
- Ogive (2) comprenant une unité de charge (5) avec une charge explosive (7), un inhibiteur (8), un initiateur (9) et une butée (6) prévus devant l'unité de charge (5) pour interférer avec l'inhibiteur (8) de l'unité de charge (5), la fourniture de la butée (6) créant un mode de fonctionnement par éclatement de l'ogive (2), caractérisée en ce que l'unité de charge (5) est réalisée pour former un projectile par explosion, dit EFP, et en ce que la butée (6) se trouve à une distance devant l'unité de charge (5) qui dépasse la longueur de la butée (6), où ladite butée (6) a une longueur comprise entre 0,5 à 5 fois le diamètre de l'ogive (2), créant un mode à éclatement avec des fragments (14, 15) dispersés dans des directions souhaitées dans l'espace.
- Ogive de la revendication 1, caractérisée en ce que la longueur de la butée (6) est comprise entre 0,5 à 1 fois le diamètre de l'ogive (2).
- Ogive selon l'une quelconque des revendications précédentes, caractérisée en ce que la butée (6) peut être échangée pour des formes de réalisation différentes de la butée.
- Ogive selon l'une quelconque des revendications précédentes, caractérisée en ce que la butée (6) est prévue devant l'unité de charge (5) de sorte à pouvoir se rabattre pour que la trajectoire du projectile soit dégagée.
- Ogive selon l'une quelconque des revendications précédentes, caractérisée en ce que le diamètre de la butée (6) est inférieur à la moitié du diamètre de l'unité de charge (5).
- Ogive selon l'une quelconque des revendications précédentes, caractérisée en ce que la butée (6) est prévue à une distance devant l'inhibiteur (8) de l'unité de charge (5) qui correspond essentiellement à un temps de déplacement de l'inhibiteur dans une période comprise entre 30 et 150 µs et de préférence entre 50 et 60 µs.
- Ogive selon l'une quelconque des revendications 1 à 6 précédentes, caractérisée en ce que la butée (6) présente une symétrie de rotation.
- Ogive selon l'une quelconque des revendications 1 à 7 précédentes, caractérisée en ce que la butée (6) a la forme d'un cylindre circulaire.
- Ogive selon l'une quelconque des revendications 1 à 7 précédentes, caractérisée en que la butée (6) a la forme d'un corps à symétrie de rotation ayant une première section (16) avec un premier diamètre et une deuxième section (17) avec un deuxième diamètre différent du premier diamètre.
- Ogive selon l'une quelconque des revendications 1 à 7 précédentes, caractérisée en ce que la butée (6) a la forme d'un tronc d'un cône (19).
- Ogive selon l'une quelconque des revendications 1 à 7 précédentes, caractérisée en ce que la butée (16) a la forme d'un entonnoir ayant une extrémité (21) dirigée vers l'unité de charge (5).
- Ogive selon l'une quelconque des revendications 1 à 7 précédentes, caractérisée en ce que la butée (6) est essentiellement formée comme un corps sphérique.
- Ogive selon l'une quelconque des revendications précédentes, caractérisée en ce que la butée (6) est réalisée en acier.
- ogive selon l'une quelconque des revendications 1 à 12 précédentes, caractérisée en ce que la butée (6) est réalisée en métal lourd.
- Ogive tel que revendiquée dans la revendication 14, caractérisée en ce que la butée (6) est réalisée en tungstène.
- Projectile comprenant une ogive selon l'une quelconque des revendications précédentes.
- Missile comprenant une ogive selon l'une quelconque des revendications précédentes 1-15.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT05445022T ATE538357T1 (de) | 2005-04-19 | 2005-04-19 | Gefechtskopf und einen solchen enthaltendes geschoss oder projektil |
EP05445022A EP1715287B1 (fr) | 2005-04-19 | 2005-04-19 | Tête de combat et projectile ou missile comprenant une telle tête de combat |
ES05445022T ES2375713T3 (es) | 2005-04-19 | 2005-04-19 | Cabeza de combate y proyectil, o misil que comprende dicha cabeza de combate. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05445022A EP1715287B1 (fr) | 2005-04-19 | 2005-04-19 | Tête de combat et projectile ou missile comprenant une telle tête de combat |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1715287A1 EP1715287A1 (fr) | 2006-10-25 |
EP1715287B1 true EP1715287B1 (fr) | 2011-12-21 |
Family
ID=34977033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05445022A Active EP1715287B1 (fr) | 2005-04-19 | 2005-04-19 | Tête de combat et projectile ou missile comprenant une telle tête de combat |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1715287B1 (fr) |
AT (1) | ATE538357T1 (fr) |
ES (1) | ES2375713T3 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2531660C1 (ru) * | 2013-09-10 | 2014-10-27 | Открытое акционерное общество "Научно-производственное объединение "СПЛАВ" | Боевая часть |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1128345B (de) | 1960-03-05 | 1962-04-19 | Boelkow Entwicklungen Kg | Hohlsprengladung |
FR1283683A (fr) * | 1960-03-19 | 1962-02-02 | Bolkow Entwicklungen Kg | Charge creuse avec revêtement |
DE3616249C1 (de) * | 1986-05-14 | 1997-01-30 | Daimler Benz Aerospace Ag | Hohlladungsgeschoß |
US5337673A (en) | 1993-12-17 | 1994-08-16 | The United States Of America As Represented By The Secretary Of The Navy | Controlled fragmentation warhead case |
US5753850A (en) * | 1996-07-01 | 1998-05-19 | Western Atlas International, Inc. | Shaped charge for creating large perforations |
SE519365C2 (sv) | 2000-07-03 | 2003-02-18 | Bofors Defence Ab | Arrangemang vid uppskjutbar ammunitionsenhet med modulärt uppbyggda stridsdelar |
-
2005
- 2005-04-19 ES ES05445022T patent/ES2375713T3/es active Active
- 2005-04-19 AT AT05445022T patent/ATE538357T1/de active
- 2005-04-19 EP EP05445022A patent/EP1715287B1/fr active Active
Also Published As
Publication number | Publication date |
---|---|
ES2375713T3 (es) | 2012-03-05 |
ATE538357T1 (de) | 2012-01-15 |
EP1715287A1 (fr) | 2006-10-25 |
ES2375713T8 (es) | 2012-03-23 |
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