EP0802390B1 - Verfahren zur Bestimmung einer korrigierten Zerlegungszeit eines programmierbar zerlegbaren Geschosses - Google Patents

Verfahren zur Bestimmung einer korrigierten Zerlegungszeit eines programmierbar zerlegbaren Geschosses Download PDF

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Publication number
EP0802390B1
EP0802390B1 EP96118039A EP96118039A EP0802390B1 EP 0802390 B1 EP0802390 B1 EP 0802390B1 EP 96118039 A EP96118039 A EP 96118039A EP 96118039 A EP96118039 A EP 96118039A EP 0802390 B1 EP0802390 B1 EP 0802390B1
Authority
EP
European Patent Office
Prior art keywords
projectile
velocity
equation
time
barrel
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
EP96118039A
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German (de)
English (en)
French (fr)
Other versions
EP0802390A1 (de
Inventor
André Boss
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.)
Rheinmetall Air Defence AG
Original Assignee
Oerlikon Contraves AG
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Filing date
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Application filed by Oerlikon Contraves AG filed Critical Oerlikon Contraves AG
Publication of EP0802390A1 publication Critical patent/EP0802390A1/de
Application granted granted Critical
Publication of EP0802390B1 publication Critical patent/EP0802390B1/de
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
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C17/00—Fuze-setting apparatus
    • F42C17/04—Fuze-setting apparatus for electric fuzes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C11/00—Electric fuzes
    • F42C11/06—Electric fuzes with time delay by electric circuitry

Definitions

  • the invention relates to a method for determining a corrected disassembly time one programmably disassembled from a gun barrel Projectile according to the preamble of claim 1.
  • a device which has a measuring device for the projectile velocity arranged at the mouth of a gun barrel.
  • the measuring device consists of two ring coils arranged at a certain distance from one another.
  • a pulse is generated in short succession in each ring coil due to the change in magnetic flux that occurs.
  • the pulses are fed to evaluation electronics, in which the projectile speed is calculated from the time interval between the pulses and the distance between the ring coils.
  • a transmitting coil is arranged behind the measuring device for the speed, which co-operates with a receiving coil provided in the projectile.
  • the receiving coil is connected to a counter via a high-pass filter, which is connected on the output side to a timer.
  • a disassembly time is formed from the calculated bullet speed and a target distance to a target object, which is transmitted inductively to the bullet immediately after the measuring device has flown through. With this disassembly time, the time fuse is set so that the projectile can be disassembled in the area of the target object.
  • Describe the ejected subprojectiles a spin-stabilized caused by the rotation of the projectile Trajectory and lie evenly distributed on approximately semicircular curves of Circular areas of a cone, so that there is a good chance of hitting or firing can be achieved.
  • the invention has for its object a method according to Propose generic term, by means of which avoiding the aforementioned Disadvantages an optimal hit or shot probability is achievable.
  • a given optimal disassembly distance between a disassembly point of the projectile and a meeting point of the target is kept constant by correcting the disassembly time of the projectile.
  • the correction is made by adding a correction factor multiplied by a speed difference to the disassembly time.
  • the speed difference is formed from the difference between the current measured floor speed and a lead speed of the projectile, the lead speed being calculated from the mean of a number of previous successive floor speeds.
  • the advantages achieved with the invention can be seen in the fact that a given disassembly distance independent of the current measured bullet speed is, so that a permanent optimal hit or shot probability is achieved can.
  • the proposed correction factor for correcting the disassembly time is based only on the shooting elements of the meeting point for controlling the Weapon, namely the gun angles ⁇ , ⁇ , the hit time Tf and the lead speed V0v of the floor. So the possibility of a simple, a minimal Integration into existing weapon control systems requiring effort given.
  • 1 denotes a fire control and 2 a gun.
  • the fire control system 1 consists of a search sensor 3 for the detection of a target 4 , a follow-up sensor 5 connected to the search sensor 3 for target detection, 3-D target tracking and 3-D target measurement, and a fire control computer 6 .
  • the fire control computer 6 has at least one main filter 7 and a lead computing unit 9 .
  • the main filter 7 is connected on the input side to the follow sensor 5 and on the output side to the lead computing unit 9 , the main filter 7 receiving the 3-D target data received from the follow sensor 5 in the form of estimated target data Z such as position, speed, acceleration, etc.
  • Computing unit 9 forwards. Meteorological data can be supplied to the lead computing unit 9 via a further input Me. The meaning of the designations on the individual connections or connections is explained in more detail below on the basis of the functional description.
  • a computer of the gun 2 has an evaluation circuit 10 , an update computing unit 11 and a correction computing unit 12 .
  • the evaluation circuit 10 is connected on the input side to a measuring device 14 for the projectile speed, which is arranged at the mouth of a gun barrel 13 and is described in greater detail below with reference to FIG . 2 , and is connected on the output side to the lead computing unit 9 and the update computing unit 11 .
  • the update computing unit 11 is connected on the input side to the reserve and to the correction computing unit 9, 12 and is connected on the output side to a programmer integrated in the measuring device 14 .
  • the correction computing unit 12 is connected on the input side to the lead computing unit 9 and on the output side to the updating computing unit 11 .
  • a gun servo 15 and a triggering device 16 responding to a fire command are also connected to the lead computing unit 9 .
  • the connections between the fire control 1 and the gun 2 are combined to form a data transmission, which is designated by 17 .
  • the meaning of the designations on the individual connections between the computing units 10, 11, 12 and between the fire control system 1 and the gun 2 is explained in more detail below on the basis of the functional description.
  • 18 and 18 ' denote a floor which is shown during a programming phase ( 18 ) and at the time of disassembly ( 18' ).
  • the projectile 18 is a programmable projectile with primary and secondary ballistics, which is equipped with an ejection charge and a time fuse and is filled with sub-projectiles 19 .
  • a support tube 20 attached to the muzzle of the gun barrel 13 consists of three parts 21, 22, 23 . Between the first part 21 and the second or third part 22, 23 , ring coils 24, 25 are arranged for measuring the projectile speed. On the third part 23 — also called the programming part — a transmission coil 27 held in a coil body 26 is fastened. The type of attachment of the support tube 20 and the three parts 21, 22, 23 to each other is not shown and described. Lines 28, 29 are provided for supplying the ring coils. Soft iron rods 30 are arranged on the circumference of the support tube 20 for the purpose of shielding against magnetic fields which interfere with the measurement.
  • the projectile 18 has a receiving coil 31 which is connected to a timer 34 via a filter 32 and a counter 33 .
  • a pulse is generated in short succession in each ring coil.
  • These pulses are fed to the evaluation circuit 10 ( FIG. 1 ), in which the projectile speed is calculated from the time interval of the pulses and a distance a between the ring coils 24, 25 .
  • a disassembly time is calculated, as described in more detail below, which is transmitted inductively to the receiving coil 31 in digital form when the bullet 18 passes through the transmitting coil 27 for the purpose of setting the counter 32 .
  • Pz denotes a point of disassembly of the projectile 18 .
  • the ejected subprojectiles are, depending on the distance from the point of decomposition Pz, evenly distributed on approximately semicircular curves of (in perspective) circular areas F1, F2, F3, F4 of a cone C.
  • F1, F2, F3, F4 of a cone C.
  • the distance from the point of decomposition Pz is plotted in meters m
  • the area sizes of the areas F1, F2, F3, F4 are plotted in square meters m 2 and their diameter in meters m.
  • the warded off target designates the preceding in a meeting place or firing position (4) and in one of the meeting place or position firing position (4' is 4, and 4) is shown.
  • the lead computation unit 9 calculates a target distance RT from a lead speed VOv and the target data Z, taking meteorological data into account for storeys with primary and secondary ballistics.
  • the lead speed VOv is formed, for example, from the mean value of a number of measured projectile speeds Vm supplied via the data transmission 17 , which immediately precede the current measured projectile speed Vm.
  • the lead computing unit 9 also determines a gun angle ⁇ of the azimuth and a gun angle I of the elevation.
  • the quantities ⁇ , ⁇ , Tf and VOv are referred to as shooting elements of the meeting point and are fed to the correction computing unit 12 via the data transmission 17 .
  • the shooting elements ⁇ and ⁇ are also fed to the gun servo 15 and the shooting elements VOv and Tf or Tz to the update computing unit 11 .
  • the current (running) time (t) is interpolated or extrapolated.
  • the correction arithmetic unit 12 calculates a correction actuator K at the beginning of each cycle i with the latest set of shooting elements ⁇ , ⁇ , Tz or Tf and VOv, for which purpose a determination equation for the correction factor K is developed as described in more detail below.
  • Equation Eq.17 the derivation of the flight time ⁇ TG / ⁇ t o ( t o ) from the fire control 1 can be calculated using various mathematical methods.
  • ⁇ 2 is a known function of ⁇ ⁇ ( t o ), ⁇ ( t o ) and ⁇ ⁇ ( t o ). These sizes can either be calculated or measured directly on gun 2.
  • the sizes p 2 G / ⁇ 2 G and ⁇ p G ⁇ O ⁇ G are given by ballistics. There are functions in the first order of flight time and in the second order of pipe elevation, which can be negligible. For example, a solution according to d'Antonio can be used to determine these variables.
  • equations Eq.18 and Eq.19 the correction factor K results where the sizes TG , ⁇ TG / ⁇ t o , ⁇ , ⁇ , ⁇ ⁇ , ⁇ ⁇ and ⁇ o refer to the time t o .
  • the corrected dismantling time Tz (Vm) is depending on the time validity for the current running time t is interpolated or extrapolated.
  • the new calculated disassembly time Tz (Vm, t) is the transmitter coil 27 of the Programming part 23 of the measuring device 14 supplied and how already described above with reference to FIG missile 18 transmitted.
  • the disassembly distance Dz (Fig. 3,4) regardless of the spread of the bullet speed be kept constant, so that an optimal meeting or Probability of shooting can be achieved.

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  • General Engineering & Computer Science (AREA)
  • Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Paper (AREA)
  • Electrotherapy Devices (AREA)
  • Crushing And Grinding (AREA)
  • Toys (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Fishing Rods (AREA)
  • Testing Of Balance (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Debugging And Monitoring (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
EP96118039A 1996-04-19 1996-11-11 Verfahren zur Bestimmung einer korrigierten Zerlegungszeit eines programmierbar zerlegbaren Geschosses Expired - Lifetime EP0802390B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH100096 1996-04-19
CH1000/96 1996-04-19
CH100096 1996-04-19

Publications (2)

Publication Number Publication Date
EP0802390A1 EP0802390A1 (de) 1997-10-22
EP0802390B1 true EP0802390B1 (de) 2000-10-18

Family

ID=4200121

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96118039A Expired - Lifetime EP0802390B1 (de) 1996-04-19 1996-11-11 Verfahren zur Bestimmung einer korrigierten Zerlegungszeit eines programmierbar zerlegbaren Geschosses

Country Status (12)

Country Link
US (1) US5814755A (ja)
EP (1) EP0802390B1 (ja)
JP (1) JP4008520B2 (ja)
KR (1) KR100410719B1 (ja)
AT (1) ATE197090T1 (ja)
AU (1) AU716344B2 (ja)
CA (1) CA2190386C (ja)
DE (1) DE59606025D1 (ja)
NO (1) NO312143B1 (ja)
SG (1) SG83657A1 (ja)
TR (1) TR199600939A1 (ja)
ZA (1) ZA969543B (ja)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2761767B1 (fr) * 1997-04-03 1999-05-14 Giat Ind Sa Procede de programmation en vol d'un instant de declenchement d'un element de projectile, conduite de tir et fusee mettant en oeuvre un tel procede
DE59914323D1 (de) 1998-10-08 2007-06-14 Contraves Ag Verfahren und Vorrichtung zur Korrektur der Zerlegungszeit bzw. der Zerlegungsumdrehungszahl eines drallstabilisierten programmierbaren Geschosses
ATE214154T1 (de) 1998-10-08 2002-03-15 Contraves Ag Verfahren und vorrichtung zur übertragung von informationen auf programmierbare geschosse
ES2185285T3 (es) 1998-10-08 2003-04-16 Contraves Pyrotec Ag Procedimiento para corregir una activacion previamente programada de un proceso en un proyectil estabilizado por rotacion, dispositivo para la realizacion del procedimiento y utilizacion del dispositivo.
DE102009011447B9 (de) * 2009-03-03 2012-08-16 Diehl Bgt Defence Gmbh & Co. Kg Verfahren zum Zünden eines Gefechtskopfs einer Granate und Fahrzeug
DE102010006528B4 (de) * 2010-02-01 2013-12-12 Rheinmetall Air Defence Ag Verfahren und Vorrichtung zur Programmierung eines Projektils
DE102010006530B4 (de) * 2010-02-01 2013-12-19 Rheinmetall Air Defence Ag Programmierbare Munition
US11047663B1 (en) * 2010-11-10 2021-06-29 True Velocity Ip Holdings, Llc Method of coding polymer ammunition cartridges
DE102011018248B3 (de) 2011-04-19 2012-03-29 Rheinmetall Air Defence Ag Vorrichtung und Verfahren zur Programmierung eines Geschosses
DE102011106198B3 (de) 2011-06-07 2012-03-15 Rheinmetall Air Defence Ag Verfahren zur Bestimmung der Mündungsaustrittsgeschwindigkeit eines Projektils
DE102013007229A1 (de) * 2013-04-26 2014-10-30 Rheinmetall Waffe Munition Gmbh Verfahren zum Betrieb eines Waffensystems
US10883809B1 (en) * 2019-05-07 2021-01-05 U.S. Government As Represented By The Secretary Of The Army Muzzle velocity correction

Family Cites Families (17)

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Publication number Priority date Publication date Assignee Title
US3575085A (en) * 1968-08-21 1971-04-13 Hughes Aircraft Co Advanced fire control system
US4142442A (en) * 1971-12-08 1979-03-06 Avco Corporation Digital fuze
US4267776A (en) * 1979-06-29 1981-05-19 Motorola, Inc. Muzzle velocity compensating apparatus and method for a remote set fuze
US4283989A (en) * 1979-07-31 1981-08-18 Ares, Inc. Doppler-type projectile velocity measurement and communication apparatus, and method
US4449041A (en) * 1980-10-03 1984-05-15 Raytheon Company Method of controlling antiaircraft fire
FR2514884B1 (fr) * 1981-10-20 1985-07-12 Sfim Procede et dispositif pour corriger globalement, d'un tir au suivant, le tir d'une arme a tir tendu
DE3309147A1 (de) * 1983-03-15 1984-09-20 Rainer Dipl.-Phys. 6901 Gaiberg Berthold Verfahren und anordnung zur korrektur eines zuendzeitpunktes
US4750423A (en) * 1986-01-31 1988-06-14 Loral Corporation Method and system for dispensing sub-units to achieve a selected target impact pattern
FR2609165A1 (fr) * 1986-12-31 1988-07-01 Thomson Brandt Armements Projectile comportant des sous-projectiles a zone d'efficacite predefinie
ES2022539B3 (es) * 1987-07-20 1991-12-01 Werkzeugmaschinenfabrik Oerlikon-Buhrle Ag Dispositivo para el ajuste digital de un contador para el desembrague de una espoleta graduada en un proyectil.
GB2226624B (en) * 1987-12-12 1991-07-03 Thorn Emi Electronics Ltd Projectile
DE3830518A1 (de) * 1988-09-08 1990-03-22 Rheinmetall Gmbh Vorrichtung zur einstellung eines geschosszeitzuenders
DE59100529D1 (de) * 1990-07-19 1993-12-02 Contraves Ag Empfangsspule für einen programmierbaren Geschosszünder.
US5140329A (en) * 1991-04-24 1992-08-18 Lear Astronics Corporation Trajectory analysis radar system for artillery piece
US5267502A (en) * 1991-05-08 1993-12-07 Sd-Scicon Uk Limited Weapons systems future muzzle velocity neural network
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US5497704A (en) * 1993-12-30 1996-03-12 Alliant Techsystems Inc. Multifunctional magnetic fuze

Also Published As

Publication number Publication date
EP0802390A1 (de) 1997-10-22
CA2190386A1 (en) 1997-10-20
DE59606025D1 (de) 2000-11-23
TR199600939A1 (xx) 1997-11-21
AU7172896A (en) 1997-10-23
ATE197090T1 (de) 2000-11-15
NO312143B1 (no) 2002-03-25
US5814755A (en) 1998-09-29
KR970070942A (ko) 1997-11-07
SG83657A1 (en) 2001-10-16
CA2190386C (en) 2003-09-16
NO964756D0 (no) 1996-11-08
AU716344B2 (en) 2000-02-24
ZA969543B (en) 1997-06-17
JP4008520B2 (ja) 2007-11-14
NO964756L (no) 1997-10-20
JPH09280798A (ja) 1997-10-31
KR100410719B1 (ko) 2004-05-06

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