EP1540264B1 - Dispositif de freinage pour projectile d'artillerie stabilisee par rotation a correction de trajectoire - Google Patents

Dispositif de freinage pour projectile d'artillerie stabilisee par rotation a correction de trajectoire Download PDF

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Publication number
EP1540264B1
EP1540264B1 EP03775150A EP03775150A EP1540264B1 EP 1540264 B1 EP1540264 B1 EP 1540264B1 EP 03775150 A EP03775150 A EP 03775150A EP 03775150 A EP03775150 A EP 03775150A EP 1540264 B1 EP1540264 B1 EP 1540264B1
Authority
EP
European Patent Office
Prior art keywords
braking device
holding ring
projectile
braking
screen
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.)
Expired - Lifetime
Application number
EP03775150A
Other languages
German (de)
English (en)
Other versions
EP1540264A1 (fr
Inventor
Klaus Bär
Karl Kautzsch
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.)
Diehl Defence GmbH and Co KG
Original Assignee
Diehl BGT Defence GmbH and Co KG
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
Priority claimed from DE2002142588 external-priority patent/DE10242588B4/de
Application filed by Diehl BGT Defence GmbH and Co KG filed Critical Diehl BGT Defence GmbH and Co KG
Publication of EP1540264A1 publication Critical patent/EP1540264A1/fr
Application granted granted Critical
Publication of EP1540264B1 publication Critical patent/EP1540264B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/32—Range-reducing or range-increasing arrangements; Fall-retarding means
    • F42B10/48—Range-reducing, destabilising or braking arrangements, e.g. impact-braking arrangements; Fall-retarding means, e.g. balloons, rockets for braking or fall-retarding
    • F42B10/50—Brake flaps, e.g. inflatable

Definitions

  • the invention relates to a braking device according to the preamble of claim 1.
  • a braking device is known from DE 100 23 345 A1 known.
  • the present invention is based on the technical problem of developing a braking device of the generic type in such a way that, on the one hand, a noticeably increased braking effect results on the other hand in stable ballistics during the initiation of the braking device.
  • This task is based on the finding that a star-shaped arrangement of radially expandable brake segments, despite the formation of vortices in the gaps between the brake segments, does not yet provide the desirable brake coefficients for the fastest possible and more defined transition from the ballistic transfer path to a steepened descent path.
  • the braking effect can be improved if the free gussets between the individual brake segments are spanned by acute-angled triangular wipes, which are initially folded together with the brake segments in the storage space under a support hood when moving out of the gun and then with the blasting of Hood to be released for centrifugal assisted erection; but the combination of hinge-hinged brake segments and textiles clamped therebetween is extremely difficult to install and also has the disadvantage that local mechanical stresses due to the compact pressure in the storage space to the area Damage to the textile gap filler can lead.
  • an igniter 11 which is designed for screwing into the ogive of an artillery projectile 12, in its frustoconical lateral surface 13 on a circumferentially radially recessed storage space 14.
  • This carries its rear wall 25 axially opposite, so in the direction of travel before the storage space 14, a ring 15 to which the inner circumference 31 of a coaxial in operative position circular disk-shaped braking element is hinged in the form of a flight direction against the stretchable textile screen 16.
  • This textile brake element is folded in its depot and transfer position from the ring 15 forth uniformly around the projectile longitudinal axis 17 around in the storage space 14 and overlapped by a hood until it is released by the blowing off of the hood for centrifugal radial issuing in the umbrella shape ,
  • Corrioliskraft in the articulation of the brake element can be selectively reduced to the ring 15
  • the thus located on the inner periphery of the hollow cylinder force elements 19 are used to radially ceremoniessprengen when stored on the receptacle 18 hollow cylinder of the hood and thus disassemble this cover disassembled into defined pieces of storage space 14.
  • This centrifugal force issuing of the annular disc brake screen 16 is further promoted by the fact that - the shield at least by seam seams, but optionally also by sewing reinforcements compared to the cloth surface with a defined mass accumulation 29 is equipped with the moment of inertia for To increase a rapid and stable issuing from the folded position in the final shape given from the cut in the interest of a fast-acting large, symmetrical inflow surface for maximum braking effect.
  • braking screen 16 which, however, flows against its outer circumferential surface, essentially a textile structure surrounding the fastening ring 15 in the form of an annular disk.
  • this is designed from the cut, under the influence of centrifugal forces not to be clamped in a substantially flat and therefore flatter end textile disc, but only up to a relatively large angle relative to the projectile axis 17, in the maximum issued state without fluttering along the Edge always the same frusto-conical geometry stable to be able to comply.
  • a circular cut cloth 33 is equipped by radially extending dart so with a reduced outer circumference 32, characterized in that the clamping movement to the shape of a flat obtuse-angled hollow truncated cone is limited, by means of longitudinal generatrix of the conical surface applied reinforcing ribbons 34 on the inner circumference 31 of the forwardly pointing small base a radial distance bridging to the retaining ring 15 is hinged and rearwardly, along the outer periphery 32, with a circumferential mass accumulation 29 for reinforcement equipped with centrifugal release forces; wherein the ring 15 in the front end region of the storage space 14, temporarily slipping relative to the projectile twist, is axially clamped in the contour of the igniter 12.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Braking Arrangements (AREA)
  • Toys (AREA)

Claims (4)

  1. Dispositif de freinage comprenant, dans la zone du détonateur de l'ogive d'un projectile d'artillerie (12) à correction de trajectoire, sous un capot éjectable, un élément pouvant sortir dans le sens radial d'un espace de rangement (14), caractérisé en ce qu'il est prévu un élément de freinage périphérique ininterrompu sous la forme d'un écran en textile (16) qui, du fait de son pourtour extérieur (32) raccourci au niveau de son rayon, ne peut pas être déployé en un disque en textile essentiellement plan, mais ne peut être sorti au maximum que jusqu'à une forme tronconique creuse à angle obtus qui est fixée de manière articulée par sa base plus petite, dirigée vers l'avant dans le sens du vol, dans la zone avant de l'espace de rangement (14) à une bague de maintien (15).
  2. Dispositif de freinage selon la revendication 1, caractérisé en ce que l'écran (16) est occupé par des bandes de renforcement (34) qui s'étendent dans le sens radial et qui sont enroulées autour de la bague de maintien (15) en recouvrant un écart radial libre entre le pourtour intérieur (31) et la bague de maintien (15).
  3. Dispositif de freinage selon la revendication 1 ou 2, caractérisé en ce que la bague de maintien (15) est serrée dans le sens axial dans le contour du détonateur (11) de manière à pouvoir effectuer une rotation par rapport au mouvement angulaire du projectile (12).
  4. Dispositif de freinage selon l'une des revendications précédentes, caractérisé en ce que le pourtour extérieur (32) de l'écran (16) est occupé avec une accumulation de masse (29) supplémentaire.
EP03775150A 2002-09-13 2003-09-10 Dispositif de freinage pour projectile d'artillerie stabilisee par rotation a correction de trajectoire Expired - Lifetime EP1540264B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10242588 2002-09-13
DE2002142588 DE10242588B4 (de) 2001-09-04 2002-09-13 Bremseinrichtung für ein bahnkorrigierbares drallstabilisiertes Artillerieprojektil
PCT/EP2003/010021 WO2004031682A1 (fr) 2002-09-13 2003-09-10 Dispositif de freinage pour projectile d'artillerie stabilisee par rotation a correction de trajectoire

Publications (2)

Publication Number Publication Date
EP1540264A1 EP1540264A1 (fr) 2005-06-15
EP1540264B1 true EP1540264B1 (fr) 2010-06-09

Family

ID=32049157

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03775150A Expired - Lifetime EP1540264B1 (fr) 2002-09-13 2003-09-10 Dispositif de freinage pour projectile d'artillerie stabilisee par rotation a correction de trajectoire

Country Status (6)

Country Link
US (1) US7347147B2 (fr)
EP (1) EP1540264B1 (fr)
KR (1) KR100676453B1 (fr)
AU (1) AU2003283241A1 (fr)
DE (1) DE50312805D1 (fr)
WO (1) WO2004031682A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005044390A (ja) * 2003-07-22 2005-02-17 Tdk Corp 磁気記録媒体の製造方法、磁気記録媒体用スタンパーおよび磁気記録媒体用中間体
DE102005052474B3 (de) 2005-11-03 2007-07-12 Junghans Feinwerktechnik Gmbh & Co. Kg Drallstbilisiertes Artillerieprojektil
US7800032B1 (en) * 2006-11-30 2010-09-21 Raytheon Company Detachable aerodynamic missile stabilizing system
US9677234B2 (en) * 2011-11-23 2017-06-13 Engineered Arresting Systems Corporation Vehicle catch systems and methods
SE1230014A1 (sv) * 2012-02-06 2013-07-23 Bae Systems Bofors Ab Bromspanel för ett tändrör eller en projektil
US9174738B1 (en) * 2013-04-14 2015-11-03 Google Inc. Drag disk, small
US9849961B2 (en) * 2015-09-23 2017-12-26 Northrop Grumman Systems Corporation High altitude balloon with a payload separation assembly
US20190016469A1 (en) * 2017-07-13 2019-01-17 Thomas C. Wilkes Deceleration Apparatus
SE543876C2 (sv) * 2019-12-20 2021-08-17 Bae Systems Bofors Ab Broms för projektil

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3047259A (en) * 1959-11-25 1962-07-31 George J Tatnall Speed brake retarding mechanism for an air-dropped store
US3114315A (en) * 1961-09-26 1963-12-17 William E Trump Dive brake
DE3608109A1 (de) * 1986-03-12 1987-09-17 Diehl Gmbh & Co Bremseinrichtung fuer ein drallstabilisiertes projektil
DE3643294A1 (de) * 1986-12-18 1988-06-23 Rheinmetall Gmbh Geschoss
DE3909902A1 (de) * 1989-03-25 1990-09-27 Diehl Gmbh & Co Am boden eines submunitionen enthaltenden traegerprojektils befestigtes bremstuch
FR2660908B1 (fr) * 1990-04-13 1994-09-09 Dassault Avions Dispositif de freinage aerodynamique.
DE4120027C2 (de) * 1991-06-18 1996-08-01 Rheinmetall Ind Gmbh Bremselement
DE19824288C2 (de) * 1998-05-29 2002-11-14 Rheinmetall W & M Gmbh Artilleriegeschoß
DE10023345C2 (de) * 2000-05-12 2002-03-28 Diehl Munitionssysteme Gmbh Drallstabilisiertes Projektil mit Bremseinrichtung
DE10143312C1 (de) * 2001-09-04 2003-06-18 Diehl Munitionssysteme Gmbh Bremseinrichtung für ein bahnkorrigierbares drallstabilisiertes Artillerieprojektil

Also Published As

Publication number Publication date
WO2004031682A1 (fr) 2004-04-15
US7347147B2 (en) 2008-03-25
KR100676453B1 (ko) 2007-01-30
US20050258308A1 (en) 2005-11-24
KR20050043953A (ko) 2005-05-11
DE50312805D1 (de) 2010-07-22
AU2003283241A1 (en) 2004-04-23
EP1540264A1 (fr) 2005-06-15

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