WO2005079163A2 - Munition de rattrapage - Google Patents

Munition de rattrapage Download PDF

Info

Publication number
WO2005079163A2
WO2005079163A2 PCT/IL2005/000098 IL2005000098W WO2005079163A2 WO 2005079163 A2 WO2005079163 A2 WO 2005079163A2 IL 2005000098 W IL2005000098 W IL 2005000098W WO 2005079163 A2 WO2005079163 A2 WO 2005079163A2
Authority
WO
WIPO (PCT)
Prior art keywords
munition
cavity
disposing
fragment
processing
Prior art date
Application number
PCT/IL2005/000098
Other languages
English (en)
Other versions
WO2005079163A3 (fr
Inventor
Gilad Peleg
Original Assignee
Rafael - Armament Development Authority Ltd.
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 Rafael - Armament Development Authority Ltd. filed Critical Rafael - Armament Development Authority Ltd.
Publication of WO2005079163A2 publication Critical patent/WO2005079163A2/fr
Publication of WO2005079163A3 publication Critical patent/WO2005079163A3/fr

Links

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
    • F42B12/22—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
    • 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
    • F42B12/24—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 with grooves, recesses or other wall weakenings
    • 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
    • F42B12/26—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 the projectile wall being formed by a spirally-wound element
    • 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
    • F42B12/28—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 the projectile wall being built from annular elements

Definitions

  • the present invention relates to munition and, in particular, it concerns the
  • GP design legacy munition typically exhibits natural fragmentation
  • design legacy munition has a low kill probability rate per unit of munition in most
  • munition poses a financial drain on the economy.
  • modern munition has become more effective than
  • legacy GP design munition due to inclusion of one or more of the following
  • bombs and projectiles Third, clusters of bomblets are included in a single munition.
  • warheads of munition are produced with controlled fragmentation means.
  • Upgrading of GP legacy weapons is known in the prior art. Upgrading of GP
  • legacy weapons currently includes two main methods. First, fitting navigation,
  • Patent No. 6,598,534 to Lloyd et al. teaches placement of projectiles in a hull
  • U.S. Patent No. 6,584,909 to Brede et al. teaches a manufacturing method of fragmentation by introducing a sealant in the gap between
  • munition is used as a basic component of a new and essentially different system
  • the new warhead is formed by adding an improved warhead to the legacy warhead thereby substantially changing the properties and form of the legacy
  • the present invention is a retrofit munition construction and method of
  • controlled fragmentation module including at least one preformed fragment. According to a further feature of the present invention, the controlled fragmentation module including at least one preformed fragment.
  • fragmentation module includes a plurality of preformed fragments. According to a further feature of the present invention, there is also provided
  • step of disposing is performed by disposing at least part of the
  • fragmentation module includes a plurality of preformed fragments.
  • the munition resulting from the step of processing is at least 50% of a mass increase
  • munition is substantially unchanged by the steps of processing and disposing.
  • processing and disposing are perfo ⁇ ned, such that aerodynamics of the munition are
  • the munition is a
  • munition selected from the group consisting of an air to surface general-purpose
  • the munition is removed from the munition in order to fonn at least part of the cavity.
  • the step of processing is a further feature of the present invention.
  • cavity is symmetrically disposed around an axis of the munition.
  • the cavity includes at
  • fragmentation module includes a filler material which is disposed between the at least
  • the filler material is a
  • step selected from the group consisting of: (i) casting the at least one fragment in
  • molded mixture is perfonned by disposing the molded mixture and the mold into the
  • the fragment is
  • the fragment includes
  • Fig. 1 is axial sectional view of a munition having a cavity fonned therein
  • Fig. 2 is an axial sectional view of the munition of Fig. 1 having a controlled
  • Fig. 3 is an isometric view of the munition of Fig. 2;
  • Figs. 4a to 4c are schematic views of controlled fragmentation modules for
  • Fig. 4d is a plan view of a segmented wire strand for disposing in the cavity
  • Fig. 4e is an isometric view of the segmented wire stand of Fig. 4d;
  • Fig. 4f is a plan view of a segmented and perforated ring for disposing in the
  • Fig. 4g is a side view of the segmented and perforated ring of Fig. 4f
  • Fig. 4h is an isometric view of a cut sheet for disposing in the cavity of the
  • Fig. 5 is a schematic view of a retrofit munition that is constructed
  • the present invention is a retrofit munition construction and method of
  • the retrofit process of the present invention results in munition having a
  • munition of the present invention has the shape of older munition but exhibits
  • Fig. 1 is axial sectional view of a
  • munition 10 having a cavity 12 formed therein that is constructed and operable in
  • method of the present invention includes the following steps. First, munition 10
  • an explosive 14 disposed therein is provided from an ordnance stockpile.
  • Munition 10 is generally a non-propelled type such as a bomb or a projectile
  • munition 10 is a
  • Munition 10 is typically, for
  • one or more elements such as an outer shell 18 of munition 10, are
  • Outer shell 18 typically includes the natural uncontrolled fragmentation element of
  • the volume of cavity 12 is defined as the volume enclosed by a remaining portion
  • cavity 12 may have a variety of shapes. Cavity 12 is typically performed by: a
  • cutting process for example, but not limited to lathing, milling or drilling; or an
  • etching process for example, but not limited to chemical etching, laser and electron
  • the step of fo ⁇ ning cavity 12 is performed while explosive 14 and fuze 16
  • this most preferred embodiment of the present invention cavity 12 is formed, such
  • fuze 16 In accordance with an alternate embodiment of the present invention, fuze 16
  • fuze 16 and a majority of explosive 14 are removed from munition 10 prior to
  • Fig. 2 is an axial sectional view of
  • munition 10 of Fig. 1 having a controlled fragmentation module 24 disposed in
  • Fig. 3 is an isometric view of
  • Controlled fragmentation module 24 is disposed, at least partially, in cavity 12.
  • Controlled fragmentation module 24 includes a plurality of metal spherically shaped preformed fragments 26.
  • fragments 26 can be of varying size, number and shape. Additionally, it will be
  • prefonned fragments 26 are coated for example, but not limited to a coating of a
  • controlled fragmentation module is defined, herein, to include an arrangement of
  • fragmentation legacy elements which have a predominantly random fragment
  • fragments 26 are, optionally, either inter-connected or non-interconnected.
  • prefonned fragments 26 are disposed in a dedicated sub-container (not
  • Controlled fragmentation module 24 also
  • a filler material 28 which is disposed between prefonned fragments 26 and
  • outer shell 18 in order to reduce air gaps between preformed fragments 26 and outer
  • Filler material 28 helps prevent perfonnance degradation of preformed fragments 26 on explosion of munition 10 due to pressure losses
  • Preformed fragments 26 and filler material 28 are generally disposed in
  • the first method includes
  • controlled fragmentation module 24 For example, but not limited to: (i) casting
  • preformed fragments 26 in filler material 28 (ii) adhesively attaching preformed
  • Controlled fragmentation module 24 is then
  • the second method includes disposing filler material 28 in
  • cavity 12 by: (i) injecting or casting filler material 28 into cavity 12 using a mold
  • third method includes disposing a mixture of prefonned fragments 26 and filler
  • material 28 in cavity 12 typically by injecting or casting prefonned fragments 26
  • fo ⁇ ning cavity 12 is at least 50%, preferably 100%, of the mass increase of
  • munition 10 Preferably, the mass distribution and aerodynamics of munition 10 are the mass distribution and aerodynamics of munition 10 are the mass distribution and aerodynamics of munition 10 are the mass distribution and aerodynamics of munition 10 are the mass distribution and aerodynamics of munition 10 are the mass distribution and aerodynamics of munition 10 are the mass distribution and aerodynamics of munition 10 are the mass distribution and aerodynamics of munition 10 are the mass distribution and aerodynamics of munition 10 are
  • munition 10 is defined herein as the aerodynamic coefficients of lift, drag and
  • Fig. 4a is a schematic view of a controlled vehicle
  • fragmentation module 30 including nails or darts 32, for disposing in cavity 12 of
  • Fig. 4b is a schematic view of a controlled device
  • fragmentation module 33 including a plurality of fragments 34 disposed on a
  • Fragments 34 are
  • Fig. 4c is a schematic view of a controlled
  • fragmentation module 35 having a plurality of fragments 38 arranged in a matrix
  • Controlled fragmentation module 35 includes a sheet liner 40 which acts as a filler material. Fragments 38 are
  • controlled fragmentation module 35 can be any one of those ordinarily skilled in the art.
  • preformed fragments including prefonned fragment modules known to
  • Fig. 5 is a schematic view of a retrofit munition 42
  • the method to produce retrofit munition 42 includes the
  • a plurality of cavities 44 is fonned in the outer shell 50 of
  • munition 42 typically using a drill or milling machine. Second, one or more
  • prefonned fragments 46 along with a filler material 48 are disposed in each
  • ⁇ can be fonned to include many shapes, for example, but not limited to a bore, a conical hollow, a hemispherical hollow, a hollow having an ogive or elliptic cross-
  • each cavity 44 can be orientated such that preformed fragments 46 are propelled in

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

L'invention concerne un procédé permettant d'améliorer l'efficacité des munitions préexistantes. Ce procédé consiste à fournir une munition comprenant un explosif, et à disposer une partie du module de fragmentation contrôlé sur la munition. Le module de fragmentation contrôlé comprend un ou plusieurs fragments préformés.
PCT/IL2005/000098 2004-02-20 2005-01-27 Munition de rattrapage WO2005079163A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL16050004A IL160500A (en) 2004-02-20 2004-02-20 Method of retrofiting a munition for enhancing fragmentation effectiveness
IL160500 2004-02-20

Publications (2)

Publication Number Publication Date
WO2005079163A2 true WO2005079163A2 (fr) 2005-09-01
WO2005079163A3 WO2005079163A3 (fr) 2006-03-02

Family

ID=34878573

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2005/000098 WO2005079163A2 (fr) 2004-02-20 2005-01-27 Munition de rattrapage

Country Status (2)

Country Link
IL (1) IL160500A (fr)
WO (1) WO2005079163A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015102001A1 (fr) * 2014-01-01 2015-07-09 Israel Aerospace Industries Ltd. Missile d'interception et ogive pour ce dernier
AT515209A4 (de) * 2014-03-14 2015-07-15 Hirtenberger Defence Systems Gmbh & Co Kg Geschoss
US9329009B1 (en) 2013-03-15 2016-05-03 Vista Outdoor Operations Llc Manufacturing process to produce programmed terminal performance projectiles
FR3070484A1 (fr) * 2015-06-17 2019-03-01 Bae Systems Bofors Ab Prefragmentation d'une ogive

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4516501A (en) * 1980-05-02 1985-05-14 Messerschmitt-Bolkow-Blohm Gmbh Ammunition construction with selection means for controlling fragmentation size
US5095821A (en) * 1987-10-14 1992-03-17 Hug Interlizenz Ag Fragmentation casing and method of making
US5119730A (en) * 1991-08-05 1992-06-09 The United States Of America As Represented By The Secretary Of The Navy Composite sheet stringer ordnance section

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4516501A (en) * 1980-05-02 1985-05-14 Messerschmitt-Bolkow-Blohm Gmbh Ammunition construction with selection means for controlling fragmentation size
US5095821A (en) * 1987-10-14 1992-03-17 Hug Interlizenz Ag Fragmentation casing and method of making
US5119730A (en) * 1991-08-05 1992-06-09 The United States Of America As Represented By The Secretary Of The Navy Composite sheet stringer ordnance section

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9329009B1 (en) 2013-03-15 2016-05-03 Vista Outdoor Operations Llc Manufacturing process to produce programmed terminal performance projectiles
US9360284B1 (en) 2013-03-15 2016-06-07 Vista Outdoor Operations Llc Manufacturing process to produce metalurgically programmed terminal performance projectiles
WO2015102001A1 (fr) * 2014-01-01 2015-07-09 Israel Aerospace Industries Ltd. Missile d'interception et ogive pour ce dernier
US10627198B2 (en) 2014-01-01 2020-04-21 Israel Aerospace Industries Ltd. Interception missle and warhead therefor
US11187507B2 (en) 2014-01-01 2021-11-30 Israel Aerospace Industries Ltd. Interception missile and warhead therefor
AT515209A4 (de) * 2014-03-14 2015-07-15 Hirtenberger Defence Systems Gmbh & Co Kg Geschoss
AT515209B1 (de) * 2014-03-14 2015-07-15 Hirtenberger Defence Systems Gmbh & Co Kg Geschoss
FR3070484A1 (fr) * 2015-06-17 2019-03-01 Bae Systems Bofors Ab Prefragmentation d'une ogive
DE102016007976B4 (de) 2015-06-17 2024-06-06 Bae Systems Bofors Ab Vorfragmentierung eines Sprengkopfes

Also Published As

Publication number Publication date
IL160500A (en) 2009-02-11
WO2005079163A3 (fr) 2006-03-02

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