EP4141373A1 - System zur steuerung der geschossposition in einem waffenrohr und durch ein solches system durchgeführtes prüfverfahren - Google Patents

System zur steuerung der geschossposition in einem waffenrohr und durch ein solches system durchgeführtes prüfverfahren Download PDF

Info

Publication number
EP4141373A1
EP4141373A1 EP22191750.3A EP22191750A EP4141373A1 EP 4141373 A1 EP4141373 A1 EP 4141373A1 EP 22191750 A EP22191750 A EP 22191750A EP 4141373 A1 EP4141373 A1 EP 4141373A1
Authority
EP
European Patent Office
Prior art keywords
deformation
projectile
processing module
threshold value
tube
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.)
Pending
Application number
EP22191750.3A
Other languages
English (en)
French (fr)
Inventor
Nicolas Eches
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.)
Knds France
Original Assignee
Nexter Systems SA
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 Nexter Systems SA filed Critical Nexter Systems SA
Publication of EP4141373A1 publication Critical patent/EP4141373A1/de
Pending legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/53—Charged-condition indicators, i.e. indicating the presence of a cartridge in the cartridge chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A17/00—Safety arrangements, e.g. safeties
    • F41A17/06—Electric or electromechanical safeties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A17/00—Safety arrangements, e.g. safeties
    • F41A17/14—Double-loading prevention
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/37—Feeding two or more kinds of ammunition to the same gun; Feeding from two sides
    • F41A9/375—Feeding propellant charges and projectiles as separate units

Definitions

  • the technical field of the invention is that of systems making it possible to control the positioning of a projectile in the barrel of a weapon.
  • the projectile is first introduced into a chamber of the weapon and pushed up to a so-called forcing cone which is an area where the diameter of the chamber is reduced to the diameter of the tube.
  • This forcing cone therefore forms the junction between the combustion chamber of the weapon, which has a diameter greater than that of the projectile, and the rifled part of the weapon.
  • the projectile is pushed until it is jammed at the level of the forcing cone by its belt or a bead of its body and it then seals off the barrel of the weapon at the level of this zone.
  • the device as described by this patent does not detect whether the projectile is correctly loaded, it is say correctly stuck or snagged in the forcing cone of the weapon.
  • the projectile risks falling towards the chamber of the weapon, and this all the more so when the weapon is pointed in positive elevation, in particular beyond thirty degrees.
  • the invention proposes to solve this security problem by ensuring quality control of the positioning of the projectile in the forcing cone of the weapon and by informing the operators and/or the weapon system of the quality of this posting.
  • the subject of the invention is thus a system for controlling the positioning of a projectile in a barrel of a weapon comprising a forcing cone intended to jam the projectile radially, which control system comprises a measuring device intended to be placed against the barrel of the weapon, in line with the forcing cone, the measuring device being connected to a processing module capable of receiving and processing a signal from the measuring device, the monitoring system being characterized in that the measuring device is a strain measuring device configured to measure a strain of the barrel of the weapon at at least one measuring location in line with the forcing cone after the projectile has been loaded into the tube, in that the processing module is configured to compare the deformation measured by the measuring device at the at least one measurement location with a deformation threshold value of the tube in memory in the processing module, and in that the processing module is connected to means for indicating the state of being set so as to cause the indicating means to indicate to a user that the positioning is correct if the deformation measured at the at least one measurement location is equal to or greater than the deformation threshold value and there is a risk of the
  • the solution proposed by the present invention is based on the use of a deformation measuring device capable of measuring a deformation of the barrel of the weapon at the level of the forcing cone and on the comparison of the measured deformation with a value deformation threshold which corresponds to the deformation expected for the tube for correct positioning.
  • the indicating means make it possible to inform the user that the loading is correct or that a stall has appeared or is likely to occur.
  • the deformation measuring device comprises at least one deformation gauge and a measurement box receiving measurement electronics to which the at least one deformation gauge is connected.
  • the deformation measuring device comprises several, for example three, deformation gauges intended to be distributed around the tube of the weapon, equidistant or not from each other, in line with the forcing cone, each deformation gauge being configured to measure a deformation of the tube at a location of deformation respective, the processing module being further configured to compare with the deformation threshold value a deformation measured by each of the deformation gauges and to cause the indicating means to indicate that the positioning is correct if all the deformations measured by the deformation gauges are equal to or greater than the deformation threshold value and that there is a risk of the projectile stalling if at least one of the deformations measured is less than the deformation threshold value.
  • the distribution of the strain gauges around the weapon may take account of any limits imposed by the size of the immediate environment of the weapon.
  • the system comprises a power supply device, by induction, of the measuring device, the power supply device being intended to be connected to a power supply remote from the weapon, where appropriate the power supply device being intended to be mounted on the weapon against the measurement box so as to supply the at least one strain gauge and the measurement electronics.
  • Such an inductive power supply makes it possible to limit the quantity of equipment subjected to stresses by shot.
  • only the strain gauges and the processing module are integral with the weapon and are subject to the recoil of the weapon.
  • the power supply device is connected, on the one hand, by induction to the processing module, the latter being received in the measurement box, and, on the other hand, to the indicating means so as to allow the module processing to cause the indicating means to indicate to the user the stationing status of the projectile.
  • the system comprises a central unit, intended to be remote from the weapon, comprising the processing module or connected to the processing module, where appropriate via the power supply device, and configured to store in memory a history of the cases of risk of stalling and/or to order the prohibition of firing by a firing control in the event that the processing module determines that there is a risk of stalling of the projectile.
  • a central unit intended to be remote from the weapon, comprising the processing module or connected to the processing module, where appropriate via the power supply device, and configured to store in memory a history of the cases of risk of stalling and/or to order the prohibition of firing by a firing control in the event that the processing module determines that there is a risk of stalling of the projectile.
  • the indicating means can be a light, a buzzer and/or a screen.
  • correct loading can be signaled by a simple green light, and stalling of the projectile can be signaled by a simple red light, with or without an alarm.
  • the conditions of discretion necessary for carrying out a shot, in particular a first shot involve the use and installation of means of indication adapted to this constraint, in particular visible from a single point of view, for example with a reduced emissive radius.
  • the invention also relates to a method for controlling the positioning of a projectile in the barrel of a weapon, implemented by a system as defined above and characterized in that: after loading the projectile in the tube, the deformation measuring device measures a deformation of the tube at at least one measurement location in line with the forcing cone and transmits it to the processing module; and the processing module compares the deformation measured at the at least one measurement location with a deformation threshold value of the tube, and causes the indicating means to indicate to a user that the positioning is correct if the measured deformation at the at least one measurement location is equal to or greater than the deformation threshold value and that there is a risk of the projectile stalling if the deformation measured at the at least one measurement location is less than the threshold value of deformation.
  • the method is implemented by a control system comprising several strain gauges as described above, method in which the processing module compares to the deformation threshold value a deformation measured by each of the gauges deformation and causes the indicating means to indicate that positioning is correct if all the deformations measured by the deformation gauges are equal to or greater than the deformation threshold value and that there is a risk of the projectile stalling if at least one of the deformations measured is less than the deformation threshold value.
  • the method is activated following information that the projectile is in position and deactivated after firing, thus making it possible to verify that the projectile has departed, or indeed after unloading the projectile.
  • a control system 1 for positioning a projectile 100 in a weapon barrel 10 according to the present invention is connected to a weapon barrel 10 of large caliber (caliber greater than 75 mm ).
  • the weapon tube 10 comprises a bore 11 which is separated into two parts, on the one hand a chamber 12 intended to receive a projectile 100 and a propellant charge 101 and on the other hand a striped part 13 intended to impart a gyroscopic movement to the projectile 100 fired by this tube 10.
  • the chamber 12 has an internal diameter D2 greater than the internal diameter D1 of the striped part 13.
  • the progressive connection of the two diameters D1, D2 and between the chamber 12 and the striped part 13 takes place in a zone called the forcing cone 14.
  • This forcing cone 14 allows a belt 102 of the projectile 100, located between a base 103 and a warhead 104, to seal the propellant gases from the initiation of the charge 101.
  • the belt 102 consists for example of a malleable metal alloy capable of conforming by creep to the profile of the tube 10, in particular by occupying the scratches of the scratched part 13.
  • the projectile 100 may include one or more beads having satisfactory dimensional and material characteristics to ensure a seal between the forcing cone 14 and the projectile 100.
  • the control system 1 mainly comprises a device for measuring deformation 2, a processing module 3 and means 4 for indicating the position status.
  • the deformation measuring device 2 comprises several, here three, deformation gauges J1, J2, J3, namely a first gauge J1, a second gauge J2 and a third gauge J3.
  • the three strain gauges J1, J2, J3 are each fixed on the tube 10 at a respective measurement location facing the forcing cone 14.
  • the angular distribution of the three strain gauges J1, J2, J3 here is not equal .
  • the angular difference between the first gauge J1 and the second gauge J2 is less than the angular difference between the second gauge J2 and the third gauge J3. If we consider the weapon tube 10 oriented in a horizontal direction and if we divide the weapon tube 10 into two upper quarters and two opposite lower quarters, the first J1 and second J2 gauges are positioned in the same upper quarter of the weapon tube 10 and the third gauge J3 is positioned in a diametrically opposed lower quarter.
  • the three strain gauges J1, J2, J3 are connected to measurement electronics 20 received in a measurement box 5 mounted on the weapon tube 10.
  • the measurement electronics 20 compares the signal returned by each strain gauge J1, J2, J3 independently of each other with a stored deformation threshold value.
  • the measurement electronics 20 and the strain gauges J1, J2, J3 are well known per se and it therefore does not appear necessary to describe them in more detail.
  • the measurement electronics 20 is connected to the processing module 3 so as to be able to communicate to it the measurement signals coming from the strain gauges J1, J2, J3.
  • the processing module 3 is here also received in the measurement unit 5.
  • the processing module 3 is configured to interpret the signal provided by the measurement electronics 20. In particular, the processing module 3 checks that all the gauges J1, J2, J3 return a deformation signal greater than or equal to a threshold value of deformation, which is the value of the deformation, axisymmetric, measured at right angles to the forcing cone 14 when a projectile 100 is positioned correctly in the weapon barrel 10. This deformation threshold value has been determined by experiment and is stored in a memory of the processing module 3.
  • the latching is deemed satisfactory and a correct latching display command is sent to the stationing status indicating means 4, or user interface (green indicator light for example), with which the processing module 3 communicates.
  • the processing module 3 commands the indicating means 4 to present incorrect attachment (red light switching on for example). It is thus possible to provide a user with posting compliance information via the indicating means 4.
  • the processing module 3 can for example comprise at least one of a processor, a microprocessor, a microcontroller, a digital signal processor (DSP), or a programmable gate array type programmable logic device (FPGA).
  • a processor for example comprise at least one of a processor, a microprocessor, a microcontroller, a digital signal processor (DSP), or a programmable gate array type programmable logic device (FPGA).
  • DSP digital signal processor
  • FPGA programmable gate array type programmable logic device
  • the indication means 4 can be a screen and/or indicator lights with or without alarm and are arranged remotely from the weapon tube 10.
  • the communication between the processing module 3 and the indicating means 4 takes place here via a power supply device 6 ( Figure 2 ).
  • the power supply device 6 thus allows both data and energy transmission.
  • the power supply device 6 is an inductor box mounted on the weapon tube 10 against the measurement box 5 and connected to a power supply (not shown) remote from the weapon.
  • a power supply not shown
  • the transmission of data and energy takes place inductively, without contact.
  • Such a mode of transmission makes it possible to limit the quantity of equipment subject to firing constraints. Indeed, only the strain gauges J1, J2, J3, the processing module 3 and the inductor box are integral with the weapon and undergo the recoil of the weapon.
  • the system 1 will ensure continuous monitoring of the status of the positioning.
  • This monitoring will start with information on the positioning of the projectile 100, given for example by a fire control of the weapon or by the system controlling the loading of the projectile 100. It can stop after the shot, thus making it possible to check that the projectile 100 has left, or even it can be stopped after the possible unloading of the projectile 100 at the level of the chamber 12.
  • the detection of a non-compliant positioning may also, in addition to the display of the non-compliance information, order the prohibition of firing.
  • the processing module 3 communicates with a central unit 7 via the power supply device 6.
  • the deformation signal received by the processing module 3 can be transmitted to the central unit 7 in order to be exploited , in particular to establish a history of cases of projectile stall 100 or for controlling the fire control of the weapon.
  • the central unit 7 is also configured to communicate with the indication means 4 of the control system 1 or with another interface.
  • control system 1 is non-intrusive with respect to the weapon since the gauges J1, J2, J3 are positioned against the tube 10 without any machining being necessary.
  • the invention therefore allows adaptation to existing equipment without major modifications.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • User Interface Of Digital Computer (AREA)
EP22191750.3A 2021-08-30 2022-08-23 System zur steuerung der geschossposition in einem waffenrohr und durch ein solches system durchgeführtes prüfverfahren Pending EP4141373A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2108976A FR3126483B1 (fr) 2021-08-30 2021-08-30 Système de contrôle de la mise á poste d'un projectile dans un tube d'arme et procédé de contrôle mis en oeuvre par un tel système

Publications (1)

Publication Number Publication Date
EP4141373A1 true EP4141373A1 (de) 2023-03-01

Family

ID=78820668

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22191750.3A Pending EP4141373A1 (de) 2021-08-30 2022-08-23 System zur steuerung der geschossposition in einem waffenrohr und durch ein solches system durchgeführtes prüfverfahren

Country Status (2)

Country Link
EP (1) EP4141373A1 (de)
FR (1) FR3126483B1 (de)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19737078A1 (de) 1997-08-26 1999-03-18 Rheinmetall Ind Ag Vorrichtung zur Überwachung des Ladezustandes einer Rohrwaffe

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19737078A1 (de) 1997-08-26 1999-03-18 Rheinmetall Ind Ag Vorrichtung zur Überwachung des Ladezustandes einer Rohrwaffe

Also Published As

Publication number Publication date
FR3126483B1 (fr) 2023-07-21
FR3126483A1 (fr) 2023-03-03

Similar Documents

Publication Publication Date Title
EP2477020A1 (de) Vorrichtung zur Erfassung von Fluidentweichung
WO2007077376A2 (fr) Procede et dispositif de remplissage de conteneurs de gaz sous pression
EP3394559B1 (de) Peripheres stromversorgungsmodul für elektronischen detonator
FR2724716A1 (fr) Arme a tube.
CA2957217A1 (en) Device and method of control of a clutch between the engine and the main transmission of an aircraft
EP4141373A1 (de) System zur steuerung der geschossposition in einem waffenrohr und durch ein solches system durchgeführtes prüfverfahren
WO2017077228A9 (fr) Procédé de mise à feu d'un détonateur électronique et détonateur électronique
FR2864219A1 (fr) Dispositif de deconfinement d'une enveloppe de munition
EP0724504B1 (de) Verfahren und vorrichtung zum steuern eines druckmittelbetätigten doppeltwirkenden stellantriebs
WO2017216490A1 (fr) Surveillance de colmatage dans un circuit de purge d'injecteur de demarrage pour turbomachine
EP3421375A1 (de) Überwachungssystem eines turbotriebwerks eines luftfahrzeugs
EP4027098B1 (de) Vorrichtung zur kontrolle der positionierung eines projektils im rohr einer waffe und kontrollverfahren unter verwendung einer solchen vorrichtung
EP3771649A1 (de) System zur bewertung des verstopfungsgrads eines filters in einem luftfahrzeug, luftfahrzeug, das über ein solches bewertungssystem verfügt, und entsprechende methode
EP3910277B1 (de) Anti-doppelanlaufring
WO2014191652A2 (fr) Alimentation d'un dispositif de distribution pour charger en particules solides un reacteur de raffinage et/ou de petrochimie
CA1335165C (fr) Systeme de securite et d'armement pour projectile utilisant la pression des gaz de combustion
FR3074232B1 (fr) Procede de detection d'un defaut d'ecoulement de gaz dans une ligne de ventilation d'un dispositif de purge
EP2865985B1 (de) Feuerleitungsverfahren eine Gasdruckladende Feuerwaffe und Feuerleitungseinrichtung mit ein solches verfahren
FR2633339A1 (fr) Dispositif pour le controle du bon fonctionnement d'un accumulateur appartenant a un appareil ou circuit hydraulique
EP3997413B1 (de) System zum automatischen starten einer gegenmassnahme und gegenmassnahme mit einem solchen system
FR2984401A1 (fr) Dispositif motorise comprenant un carter de lubrifiant
FR2986318A1 (fr) Munition non letale
EP2437025B1 (de) Waffensystem mit Rohrverlängerung
FR2771807A1 (fr) Dispositif de programmation d'un projectile a l'interieur d'un tube d'arme
CH700272A2 (fr) Procede et dispositif de determination de parametres de tir.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20230901

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: KNDS FRANCE