EP0600388B1 - Projectile à charge creux du type tandem ayant des dispositifs d'allumage piézo-électrique - Google Patents

Projectile à charge creux du type tandem ayant des dispositifs d'allumage piézo-électrique Download PDF

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Publication number
EP0600388B1
EP0600388B1 EP93119083A EP93119083A EP0600388B1 EP 0600388 B1 EP0600388 B1 EP 0600388B1 EP 93119083 A EP93119083 A EP 93119083A EP 93119083 A EP93119083 A EP 93119083A EP 0600388 B1 EP0600388 B1 EP 0600388B1
Authority
EP
European Patent Office
Prior art keywords
main charge
precharge
fuse
tandem warhead
housing
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
EP93119083A
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German (de)
English (en)
Other versions
EP0600388A1 (fr
Inventor
Alfred Voss
Wolfgang Poetes
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.)
Dynamit Nobel GmbH Explosivstoff und Systemtechnik
Original Assignee
Dynamit Nobel AG
Dynamit Nobel GmbH Explosivstoff und Systemtechnik
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 Dynamit Nobel AG, Dynamit Nobel GmbH Explosivstoff und Systemtechnik filed Critical Dynamit Nobel AG
Publication of EP0600388A1 publication Critical patent/EP0600388A1/fr
Application granted granted Critical
Publication of EP0600388B1 publication Critical patent/EP0600388B1/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
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C11/00—Electric fuzes
    • F42C11/02—Electric fuzes with piezo-crystal
    • 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
    • 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
    • F42B12/16—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 in combination with an additional projectile or charge, acting successively on the target
    • F42B12/18—Hollow charges in tandem arrangement

Definitions

  • the invention relates to a tandem warhead according to the preamble of claim 1.
  • Tandem warheads are primarily used to combat targets such as Tanks, which are equipped with so-called ERA boxes.
  • ERA boxes are explosive bodies which have the task of exploding when they hit a projectile, thereby minimizing the effect of the projectile.
  • a tandem warhead for example a a karooka
  • a tandem warhead for example a karooka
  • the pre-charge is ignited before the main charge and pre-damages the target, so that the delayed main charge is fully effective.
  • the main charge is ignited contactlessly by the precharge, specifically by light which is generated by the precharge when it detonates.
  • a photodiode is arranged in the circuit of the main charge detonator, which responds shortly after the precharge has detonated.
  • the main charge In order to achieve maximum damage to the target hit, the main charge must be detonated after a precisely determined point in time after the charge has detonated. This is achieved in DE-OS 41 30 646 by a delay part which is arranged in the circuit of the igniter of the main charge.
  • DE-OS 39 42 841 describes a tandem warhead of the aforementioned type, the main charge being a piezoelectric Has impact detonator.
  • Piezoelectric impact detonators essentially contain an electrical converter (impact sensor) for generating the ignition voltage and a detonator.
  • the ignition voltage for the detonator arises when a shock wave hits the impact sensor when it hits a target. Piezo elements are used as sensors. The main charge is therefore ignited without contact.
  • DE-A-36 05 580 also discloses that the precharge can be ignited in a tandem warhead by means of a piezoelectric impact detonator.
  • a piezoelectric impact igniter is e.g. in DE-PS 1 145 522 or US-PS 2,894,457.
  • EP-A1-0 497 394 of the generic type shows a tandem warhead with all the features of the preamble of claim 1.
  • the invention has for its object to develop a tandem warhead according to the preamble of claim 1 such that the ignition takes place without contact, is absolutely reliable and two completely identical detonators are used to ignite the charges, which are separated as independent modules behind the charges without electrical connections are arranged one below the other and the detonation of the main charge takes place after a required delay time and the tandem warhead is cheaper to manufacture.
  • piezoelectric impact detonators Due to the use of piezoelectric impact detonators for both the pre-charge and the main charge, no mechanically movable parts are used for the ignition. In addition, two completely identical detonators are installed. As a result, the ignition device is safer and also simpler and therefore less expensive as no new official approval procedure is required. Piezoelectric impact detonators are characterized by their high reliability.
  • the duration of the shock wave until the main charge is ignited and thus the desired delay is determined by the housing construction, the arrangement of the detonators and the material composition of the housing in such a way that the housing of the tandem warhead is made of a magnesium alloy or an aluminum alloy, the housing construction being stiff and is formed without soft spots and the two detonators are arranged at a distance of 300 to 400 mm from one another, so that the shock wave from the detonator of the precharge to the detonator of the main charge has a running time of 100 to 150 microseconds.
  • the precharge together with its igniter is expediently arranged in a spacer which can be moved out of the housing in the direction of flight, the spacer consisting of two segments which can be pushed into one another.
  • the summons are seen in the direction of flight, in the foremost segment. Both segments can be inserted into the warhead housing.
  • both charges namely pre-charge and main charge
  • both charges are shaped charges, the tandem warhead preferably being used as a karoka.
  • the detonators are both piezoelectric impact detonators, e.g. are described in DE-PS 1 145 522 or US-PS 2,894,457.
  • Piezoelectric impact detonators essentially consist of an impact sensor, which conducts an ignition voltage to a detonator when the shock wave hits. The detonator then, as is known, detonates a primary charge by which the main charge or secondary charge is ignited. A delay charge can be arranged in the detonator.
  • the spacer advantageously has a front cap which is provided with a pulse damper. This makes the ignition less sensitive.
  • the first shock wave generated by the impact of the tandem warhead on a target in the piezoelectric impact detonator at the precharge or in the piezo element arranged therein has an electrical voltage of generated well over 500 V. This voltage is far higher than that required by the precharge detonator, so that the precharge is always fired safely and reliably.
  • the same first shock wave reaches the piezoelectric impact igniter of the main charge a little later. If the tandem warhead hit its target almost at right angles, the shock wave is intense enough that the voltage generated in the piezo element of the fuse belonging to the main charge is sufficient to ignite the associated detonator. However, if the tandem warhead hits a target at an acute angle, the intensity of the shock wave emanating from the impact is often not sufficient to generate sufficient voltage for the detonator in the piezo element of the main charge detonator.
  • the figure shows a tandem warhead with a main charge 2 arranged in a housing 5, which is designed as a hollow charge and has an insert 7 made of copper.
  • a piezoelectric impact igniter 4 is arranged at the rear end of the housing 5, which tapers there in a wedge shape.
  • a primary charge 8 and an inert body 9 are arranged as detonation wave guide between this igniter 4 and the main charge 2.
  • the housing 5 tapers and forms an annular opening there, which is designed as a spacer guide 10.
  • a spacer 6 is guided, which consists of two segments 6a, 6b and whose segment 6a is slidably mounted in the spacer guide 10.
  • the spacer 6 is dimensioned such that a shaped charge spike can form in the free space 11 above the insert 7.
  • the segment 6a of the spacer 6 can be locked in the extended state via a thread 12.
  • segment 6a segment 6b is guided, in which a precharge 1 with associated igniter 3 is arranged.
  • the primary charge for the pre-charge 1 is designated by the reference number 13. No detonation wave guide is provided.
  • the segment 6b can be inserted into the segment 6a of the spacer 6 and is provided with a thread 14 at its end facing the segment 6a.
  • a hemispherical cap 15 is placed on the segment 6a of the spacer 6. So that the ignition is not too sensitive, e.g. when streaking trees etc., the cap 15 is advantageously provided with a pulse damper, not shown.
  • an insert 16 is placed on the preload.
  • Both igniters 3, 4 are piezoelectric impact igniters. Since the duration of a shock wave strongly depends on the path length, the material composition and the construction of the housing 5, these variables influencing the delay time must be selected so that the delay time is within the desired range. If a longer delay time is required, a delay charge or a delay element can be installed in the main charge detonator.
  • the housing 5 of the tandem warhead is made of a light metal, i.e. a magnesium alloy or an aluminum alloy.
  • the runtime of the shock wave and the associated delayed ignition of the main charge 2 is, as already said, essentially determined by the material composition and the distance between the two igniters 3, 4 from one another. This distance is between 300 to 400 mm. This results in a transit time of the shock wave from igniter 3 to igniter 4 of 100 to 150 microseconds. So that the shock wave can penetrate into the detonator and trigger it, the detonator must be firmly connected to the housing.
  • the housing also has no soft spots that would dampen the shock wave, but is stiff so that the shock wave can propagate undamped.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Air Bags (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Catching Or Destruction (AREA)

Claims (6)

  1. Tête de combat tandem comprenant un boîtier (5) dans lequel sont disposées une charge préliminaire (1) et une charge principale (2) disposée dans l'espace derrière la charge préliminaire, chacune desdites deux charges comportant une fusée (3, 4), la charge préliminaire (1) étant mise à feu par la charge principale (2) et la fusée (4) de la charge principale (2) comprenant une fusée percutante piézo-électrique qui peut être déclenchée par une onde de choc produite lors de la détonation de la charge préliminaire (1), caractérisée par le fait que
    - la fusée (3) de la charge préliminaire (1) est une fusée percutante piézo-électrique qui est de même structure que la fusée (4) de la charge principale (2) et qui peut être déclenchée par une onde de choc produite lors de l'impact de la tête de combat tandem;
    - le boîtier (5) de la tête de combat tandem est constitué par un alliage de magnésium ou un alliage d'aluminium, la structure du boîtier étant rigide et sans parties molles; et
    - les deux fusées (3, 4) sont disposées à une distance de 300 à 400 mm l'une de l'autre de telle manière que l'onde de choc de la fusée (3) de la charge préliminaire ait une durée de parcours de 100 à 150 µs pour atteindre la fusée (4) de la charge principale.
  2. Tête de combat tandem suivant la revendication 1, caractérisée par le fait que la charge préliminaire (1) avec sa fusée (3) est disposée dans un élément d'espacement (6) qui peut être sorti (déployé) du boîtier (5) dans la direction de vol.
  3. Tête de combat tandem suivant la revendication 1 ou 2, caractérisée par le fait que l'élément d'espacement (6) se compose de deux segments (6a, 6b) télescopiques.
  4. Tête de combat tandem suivant l'une des revendications 1 à 3, caractérisée par le fait que la charge préliminaire (1) et la charge principale (2) sont des charges creuses.
  5. Tête de combat tandem suivant l'une des revendications 1 à 4, caractérisée par le fait que la tête de combat est une tête anti-char.
  6. Tête de combat tandem suivant l'une des revendications 2 à 5, caractérisée par le fait que l'élément d'espacement (6) présente une coiffe avant (15) qui est munie d'un amortisseur d'impulsions.
EP93119083A 1992-11-28 1993-11-26 Projectile à charge creux du type tandem ayant des dispositifs d'allumage piézo-électrique Expired - Lifetime EP0600388B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4240084 1992-11-28
DE4240084A DE4240084A1 (de) 1992-11-28 1992-11-28 Tandemgefechtskopf mit piezoelektrischen Aufschlagzündern

Publications (2)

Publication Number Publication Date
EP0600388A1 EP0600388A1 (fr) 1994-06-08
EP0600388B1 true EP0600388B1 (fr) 1997-03-12

Family

ID=6473916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93119083A Expired - Lifetime EP0600388B1 (fr) 1992-11-28 1993-11-26 Projectile à charge creux du type tandem ayant des dispositifs d'allumage piézo-électrique

Country Status (8)

Country Link
US (1) US5415105A (fr)
EP (1) EP0600388B1 (fr)
JP (1) JPH07301499A (fr)
KR (1) KR100210113B1 (fr)
AT (1) ATE150166T1 (fr)
DE (2) DE4240084A1 (fr)
IL (1) IL107769A (fr)
SG (1) SG82569A1 (fr)

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US6105505A (en) * 1998-06-17 2000-08-22 Lockheed Martin Corporation Hard target incendiary projectile
DE19827171A1 (de) * 1998-06-18 1999-12-23 Dynamit Nobel Ag Waffe, insbesondere Panzerabwehrwaffe
USH1930H1 (en) * 1998-07-15 2001-01-02 The United States Of America As Represented By The Secretary Of The Navy Precursor warhead attachment for an anti-armor rocket
US6109185A (en) * 1998-12-31 2000-08-29 The United States Of America As Represented By The Secretary Of The Army Anti-armor projectile with autonomous, attachable, precursor warhead
KR20020042394A (ko) * 2000-11-30 2002-06-05 조대근 산불 진화용 소화탄과 방화대 설치 방법
BG64717B1 (bg) * 2001-07-16 2005-12-30 Страхил ГУШЛЕВ Многофункционална бойна част
US6467416B1 (en) * 2002-01-08 2002-10-22 The United States Of America As Represented By The Secretary Of The Army Combined high-blast/anti-armor warheads
US6959893B1 (en) * 2003-04-01 2005-11-01 The United States Of America As Represented By The Secretary Of The Army Light fighter lethality seeker projectile
US7273011B2 (en) * 2004-11-03 2007-09-25 Saab Bofors Dynamics Switzerland Ltd Structure of a projectile
US7363862B2 (en) * 2005-05-27 2008-04-29 United States Of America As Represented By The Secretary Of The Army Multi-purpose single initiated tandem warhead
ES2385040T3 (es) * 2005-07-01 2012-07-17 Saab Ab Pieza de munición con precursor cinético
ES2549264T3 (es) * 2006-03-09 2015-10-26 Saab Ab Procedimiento para la reducción de la cantidad de tipos de munición a utilizar y dispositivo de munición
US7560855B2 (en) * 2006-07-31 2009-07-14 Loki Incorporated Ferroelectric energy generator, system, and method
DE102007016488B3 (de) * 2007-04-05 2009-01-22 Diehl Bgt Defence Gmbh & Co. Kg Penetrationsfähiges Geschoss
KR100959359B1 (ko) * 2007-12-12 2010-05-20 주식회사 한화 다중 탄두와 다방향성 신관이 구비된 폭발탄
KR100930374B1 (ko) * 2009-01-15 2009-12-16 김진기 폭발 전파 경로 제어 성형 작약
KR100930373B1 (ko) * 2009-01-15 2009-12-16 김진기 폭발 전파 속도 차를 이용한 성형 작약
US7999445B2 (en) * 2009-07-13 2011-08-16 Loki Incorporated Ferroelectric energy generator with voltage-controlled switch
RU2456535C1 (ru) * 2011-02-15 2012-07-20 Николай Евгеньевич Староверов Кумулятивный снаряд староверова (варианты)
KR101203523B1 (ko) 2012-06-25 2012-11-21 국방과학연구소 탄두의 최적 폭파시점 계산 방법 및 이를 이용한 신관 프로세서
EP3577413B1 (fr) 2017-01-31 2023-09-20 Transmobil Ltd Ogive cumulative-thermobarique
CN107270788B (zh) * 2017-06-29 2023-06-27 中国工程物理研究院电子工程研究所 一种传感器冗余式设计的触发引信
WO2019090399A1 (fr) 2017-11-08 2019-05-16 Transmobil Ltd Projectile cumulatif en tandem
DE102019213944A1 (de) * 2019-09-12 2021-03-18 Atlas Elektronik Gmbh Unterwasserfahrzeug mit zwei hintereinander angeordneten Hohlladungen
KR20240066644A (ko) 2022-11-08 2024-05-16 한화에어로스페이스 주식회사 탄두 위력 조절이 가능한 신관 구조체, 이를 포함하는 탄두 위력 조절이 가능한 탄두 및 탄두의 기폭 방법

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Also Published As

Publication number Publication date
DE4240084A1 (de) 1994-06-01
SG82569A1 (en) 2001-08-21
DE59305740D1 (de) 1997-04-17
KR940011924A (ko) 1994-06-22
IL107769A (en) 1996-09-12
US5415105A (en) 1995-05-16
JPH07301499A (ja) 1995-11-14
ATE150166T1 (de) 1997-03-15
EP0600388A1 (fr) 1994-06-08
IL107769A0 (en) 1994-07-31
KR100210113B1 (ko) 1999-07-15

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