EP1093561A1 - Dispositif d'autoprotection passive pour engin mobile tel qu'un helicoptere - Google Patents
Dispositif d'autoprotection passive pour engin mobile tel qu'un helicoptereInfo
- Publication number
- EP1093561A1 EP1093561A1 EP99926581A EP99926581A EP1093561A1 EP 1093561 A1 EP1093561 A1 EP 1093561A1 EP 99926581 A EP99926581 A EP 99926581A EP 99926581 A EP99926581 A EP 99926581A EP 1093561 A1 EP1093561 A1 EP 1093561A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- decoy
- helicopter
- hostile
- protection device
- passive self
- 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.)
- Granted
Links
- 230000003068 static effect Effects 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000010304 firing Methods 0.000 description 17
- 238000005457 optimization Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H11/00—Defence installations; Defence devices
- F41H11/02—Anti-aircraft or anti-guided missile or anti-torpedo defence installations or systems
-
- 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
- F41A27/00—Gun mountings permitting traversing or elevating movement, e.g. gun carriages
- F41A27/06—Mechanical systems
- F41A27/08—Bearings, e.g. trunnions; Brakes or blocking arrangements
-
- 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
- F41A27/00—Gun mountings permitting traversing or elevating movement, e.g. gun carriages
- F41A27/28—Electrically-operated systems
Definitions
- Passive self-protection device for a mobile machine such as a helicopter
- the present invention relates to a passive self-protection device for a mobile vehicle such as a helicopter.
- a constant concern in the field of armament techniques is to best protect mobile devices such as ships, land vehicles, planes and helicopters against "hostiles" such as trajectory-corrected rockets or missiles .
- decoy launchers for this purpose, making it possible to fire cartridges containing, depending on the type of hostile, infrared decoys or electromagnetic decoys.
- the decoys drawn deflect the hostile from its target, thus avoiding partial or total destruction of the latter.
- decoy launchers constitute passive self-protection devices because they do not make it possible to destroy the hostile.
- the present invention aims to provide means for optimizing the decoy sequences for such devices, in order to improve their protection.
- This object of the invention is achieved with a passive self-protection device for a mobile machine such as a helicopter, comprising at least one decoy thrower mounted orientably on said machine, slaved to a hostile detector and to a navigation center. , remarkable in that it comprises means for developing a dynamic decoy library from the information provided by said detector and by said control unit, in order to define decoy sequences in which the orientation and timing of the shots of said launcher lures are optimized.
- FIG. 1 is a front view of the chassis of a decoy launcher of the device according to the invention mounted on a motorized gimbal, this chassis being shown in position "zero";
- FIG. 2 is a partial side view of the assembly shown in Figure 1, the frame of the decoy launcher being shown in three positions: minimum roll position (dashed line), zero position (solid line), and position maximum roll (broken line);
- - Figure 3 is a top view of the assembly shown in Figures 1 and 2, the frame of the decoy launcher being shown in three positions: minimum yaw position (dashed line), zero position (solid line), and position maximum yaw (broken line);
- - Figure 4 is a side view of a helicopter equipped with two decoy launchers of the device according to the invention (only one of them being visible in this figure);
- - Figure 5 is a front view of the helicopter of Figure 4;
- FIG. 6 is a top view of the helicopter of Figure 4;
- FIG. 7 is a flowchart describing the operation of the device according to the invention.
- identical reference numerals represent identical or analogous members or sets of members. It will be noted that the following has chosen to describe the invention when it is incorporated into a helicopter, since it is a fact that it is particularly suitable for this type of mobile vehicle. That said, this choice is in no way limiting, and it should be borne in mind that the invention could also be advantageously incorporated into other mobile devices such as ships or land vehicles, or even into planes.
- top and bottom are understood with respect to the vertical, represented where appropriate by an axis ZZ ', Z being located downwards and Z' upwards.
- This chassis has substantially the shape of a parallelepiped box open on one of its faces 2. It is intended to receive a charger (not shown) comprising cartridges of electromagnetic or infrared decoys. In the case of a helicopter, it is preferable to use special cartridges with suitable payload, which also makes it possible to reduce the reaction forces when firing.
- the bottom of the chassis 1, opposite its opening, comprises electrical members (power amplifiers, etc., not shown) allowing the ignition of the decoy cartridges. These electrical components are connected to the interior of the helicopter by connection components (not shown).
- the chassis 1 is rotatably mounted around a horizontal axis 3 on a plate 4, itself rotatably mounted around a vertical axis 5 on a support 6.
- the support 6 is fixed on an appropriate part 7 of the helicopter.
- a first electric motor 8, of the “torque” or “step-by-step” type, fixed on the plate 4, is intended to rotate the chassis 1 about its axis 3.
- a second electric motor 9, similar to the motor 8, is fixed on the support 6 and is intended to pivot around the vertical axis 5 the assembly formed by the plate 4, the chassis 1 and the motor 8.
- FIG. 2 represents three possible positions of the chassis 1, the plate 4 being in its “zero” position, that is to say in a middle position between its two extreme positions.
- the position of the chassis 1 which is shown in solid lines is its zero position.
- the position of the chassis 1 which is shown in phantom is an extreme downward position, also called the minimum roll position.
- FIG. 3 represents three possible positions of the chassis 1 corresponding to three possible positions of the plate 4.
- the position of the chassis 1 which is shown in solid lines is its zero position.
- the position of the frame 1 which is shown in phantom is an extreme position in the direction of clockwise rotation, also called minimum yaw position.
- the position of the chassis 1 which is shown in broken lines is an extreme position in the anti-clockwise rotation direction, also called maximum yaw position, symmetrical with the minimum yaw position with respect to the zero position.
- the minimum and maximum yaw positions are inclined by an angle ⁇ of about 75 ° relative to the zero position.
- Each of these two decoy launchers is mounted on a motorized gimbal such as that which has just been described.
- each decoy-cardan launcher assembly has been represented by a simple rectangle.
- the two decoy launchers are preferably placed symmetrically with respect to the main line 13 of the helicopter, at a sufficient distance from the air inlets 14 of the apparatus. They can be fixed on any sufficiently rigid part of the device, such as landing gear supports, as shown.
- FIGS. 5 and 6 show the deflections of the roll and lace decoy launchers, corresponding respectively to FIGS. 2 and 3 described above.
- the extreme angles of roll ⁇ and of yaw ⁇ shown are preferably respectively about 60 ° and 75 °.
- the decoy launchers then each have a maximum clearance of approximately 120 ° in roll and 150 ° in yaw, which a priori makes it possible to draw decoys in almost all directions of space.
- the maximum deflections of the decoy launchers are likely to vary from one helicopter to another, and on the other hand that for a given helicopter, the authorized firing directions can vary according to a certain number of parameters.
- the firing of electromagnetic decoys towards the front of an advancing helicopter is also prohibited, in order to prevent any penetration of metallic flakes into the air intakes.
- shots into the mobile wing of a helicopter are prohibited when infrared decoys are used.
- the management of shots from the orientable decoy launchers of the device according to the invention can quickly prove to be very complex, and in any case impossible to optimize manually. This is the reason why the invention also provides a system for optimizing the decoy sequences.
- the optimization system includes a CT fire calculator interface with:
- the hostile detector D which can be a radar, makes it possible to identify a hostile by virtue of a plurality of antennas A1, A2, A3, A4 located at the periphery of the helicopter.
- the detector D is also of a type making it possible to identify the category of the hostile.
- Such a detector available in the prior art, must at least make it possible to differentiate a hostile with electromagnetic guidance from a hostile with infrared guidance.
- detector D can also allow other characteristics of the hostile to be identified more precisely.
- the information sent by the CN navigation center to the CT fire computer concerns essentially the attitudes (Euler angles) of the helicopter, its speed and the position of its center of gravity.
- the firing computer CT can determine the exact position of the hostile in the helicopter frame of reference, or even in a frame of reference absolute.
- the static decoy library B contains various subroutines which can be used by the CT computer to order decoy sequences. This library is static in the sense that the various subroutines are predefined.
- the information sent by the PC control station to the CT shooting computer essentially depends on instructions imposed manually by the pilot and concerning the shooting conditions: activation / deactivation of the optimization system, firing prohibitions depending on the circumstances (flight in formation for example), etc.
- the information sent by the position encoders C8, C9 and C8 ', C9' to the firing computer CT allows it to know at all times the orientation of the chassis 1 and the.
- These position encoders can be, for example, optical or potentiometric sensors.
- the CT fire calculator interrogates the library B to find the subroutine adapted to this category, then it calculates in real time the orientation and timing of the launcher's shots, taking into account the information provided by the hostile detector D and by the CN navigation center.
- the firing computer CT thus creates a dynamic decoy library from the static library B and information supplied by the hostile detector D and by the navigation center CN, making it possible to define a decoy sequence including the efficiency is optimized depending on the nature of said hostile and the relative movements of the helicopter and the ostile.
- the CT firing computer knows their orientations at all times. By comparing these to the calculated orientations to be reached, the computer determines the movement orders to be sent to the engines of the decoy launcher.
- the CT shooting computer also checks that the direction of fire to be achieved is compatible with the instructions imposed by the pilot, provided by the PC control station.
- the firing computer CT determines a new firing orientation which approaches the ideal firing direction.
- the firing computer CT sends it a firing order.
- FIG. 8 shows an example of a decoy sequence, in the case of a hovering helicopter and an infrared-guided hostile arriving on the starboard side of the helicopter. As can be seen in this figure, the hostile initially follows a trajectory 20 directed towards the turbines of the helicopter 10.
- the LL launcher located on the starboard side of the aircraft pulls three lures L1, L2, L3 directed more and more towards the front of the helicopter, so as to gradually deviate the initial trajectory 20 of the hostile towards trajectories avoidance 21, 22, 23.
- the infrared signatures of the decoys are progressively separated from that of the helicopter, and the hostile is prevented from reaching its target.
- the time interval separating each lure shot in this example can be of the order of half a second.
- the decoy sequence described above would no longer be suitable if the helicopter was advancing, because then the infrared signature of the helicopter would risk joining the infrared signatures of the decoys fired last.
- the dynamic library means exposed above would then make it possible to modify the decoy sequence according to the movements of the helicopter so as, for example, to deviate the trajectory of the hostile towards the rear of the apparatus.
- the dynamic library means described above would make it possible to switch directly from the starboard decoy launcher to the port decoy launcher, or vice versa, so as to ensure the continuity of the decoy vis-à-vis the hostile.
- the two decoy launchers are set to their zero position by electrical or mechanical means (not shown), and the firing orders are sent manually by the pilot via the PC control station.
- the present invention makes it possible to define decoy sequences in which the orientation and the timing of the shots of the decoy launchers are optimized according to the nature of the hostile and the relative movements of this hostile and of the 'helicopter.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Toys (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9808545A FR2780774B1 (fr) | 1998-07-03 | 1998-07-03 | Dispositif d'autoprotection passive pour engin mobile tel qu'un helicoptere |
FR9808545 | 1998-07-03 | ||
PCT/FR1999/001584 WO2000002000A1 (fr) | 1998-07-03 | 1999-07-01 | Dispositif d'autoprotection passive pour engin mobile tel qu'un helicoptere |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1093561A1 true EP1093561A1 (fr) | 2001-04-25 |
EP1093561B1 EP1093561B1 (fr) | 2003-09-24 |
Family
ID=9528238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99926581A Expired - Lifetime EP1093561B1 (fr) | 1998-07-03 | 1999-07-01 | Dispositif d'autoprotection passive pour engin mobile tel qu'un helicoptere |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1093561B1 (fr) |
DE (1) | DE69911608T2 (fr) |
ES (1) | ES2209448T3 (fr) |
FR (1) | FR2780774B1 (fr) |
WO (1) | WO2000002000A1 (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1329668A (zh) * | 1998-10-02 | 2002-01-02 | 高山生物科学股份有限公司 | 多聚乙酰合成酶及其重组dna构建物 |
WO2000066008A1 (fr) | 1999-05-04 | 2000-11-09 | Cardiothoracic Systems, Inc. | Instruments chirurgicaux permettant d'acceder a une partie localisee d'un coeur battant et de la stabiliser |
DE10008198A1 (de) * | 2000-02-23 | 2001-08-30 | Krauss Maffei Wegmann Gmbh & C | An einem Kampffahrzeug angeordnete Wurfanlage für Nebelkerzen, Sprengkörper u. dgl. |
DE10117007A1 (de) * | 2001-04-04 | 2002-10-17 | Buck Neue Technologien Gmbh | Verfahren und Vorrichtung zum Schutz von mobilen militärischen Einrichtungen |
DE10247350A1 (de) * | 2002-10-10 | 2004-04-22 | Krauss-Maffei Wegmann Gmbh & Co. Kg | Einrichtung zum Schutz von Objekten gegen als Lenk-Flugkörper ausgebildete Munitionen |
JP4313315B2 (ja) | 2002-12-17 | 2009-08-12 | カウンシル オブ サイエンティフィク アンド インダストリアル リサーチ | 殺菌処理ユニットパック入りの風味をつけたサトウキビジュース |
DE10346001B4 (de) | 2003-10-02 | 2006-01-26 | Buck Neue Technologien Gmbh | Vorrichtung zum Schützen von Schiffen vor endphasengelenkten Flugkörpern |
WO2009062007A1 (fr) * | 2007-11-08 | 2009-05-14 | Raytheon Company | Distributeur de lance-paillettes |
DE102008038603C5 (de) | 2008-08-21 | 2018-04-19 | Krauss-Maffei Wegmann Gmbh & Co. Kg | Gegenschussanlage |
DE102013104501A1 (de) | 2013-05-02 | 2014-11-06 | B. Braun Avitum Ag | Vorrichtung zur extrakorporalen Blutbehandlung |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2383419A1 (fr) * | 1977-03-07 | 1978-10-06 | Lacroix E | Valise lance-leurres pour la deception des systemes de guidage d'armes |
US4307650A (en) * | 1978-07-05 | 1981-12-29 | Messerschmitt-Boelkow-Blohm Gesellschaft Mit Beschraenkter Haftung | Weapons system for the ballistic and guided attack on multiple targets, especially by an aircraft |
GB2138546A (en) * | 1982-09-03 | 1984-10-24 | Wallop Ind Ltd | Decoy systems |
DE3612183A1 (de) * | 1986-04-11 | 1987-10-22 | Wegmann & Co | Verfahren zur ablenkung von durch radar- und/oder infrarotstrahlung gelenkten flugkoerpern, insbesondere zum schutz von seeschiffen und schiffsverbaenden sowie einrichtung zur durchfuehrung des verfahrens |
DE3705700A1 (de) * | 1987-02-23 | 1988-09-01 | Buck Chem Tech Werke | Werfereinheit |
SE469196B (sv) * | 1991-10-02 | 1993-05-24 | Nobeltech Electronics Ab | Faellarenhet samt faellarsystem innefattande minst en saadan faellarenhet |
DE9320382U1 (de) * | 1993-07-07 | 1994-06-01 | BST Schutztechnik GmbH, 85521 Ottobrunn | Selbstschutzanlage für Gefechtsfeldfahrzeuge |
-
1998
- 1998-07-03 FR FR9808545A patent/FR2780774B1/fr not_active Expired - Fee Related
-
1999
- 1999-07-01 DE DE69911608T patent/DE69911608T2/de not_active Expired - Lifetime
- 1999-07-01 EP EP99926581A patent/EP1093561B1/fr not_active Expired - Lifetime
- 1999-07-01 WO PCT/FR1999/001584 patent/WO2000002000A1/fr active IP Right Grant
- 1999-07-01 ES ES99926581T patent/ES2209448T3/es not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0002000A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE69911608D1 (de) | 2003-10-30 |
FR2780774B1 (fr) | 2001-03-09 |
ES2209448T3 (es) | 2004-06-16 |
DE69911608T2 (de) | 2004-07-01 |
FR2780774A1 (fr) | 2000-01-07 |
EP1093561B1 (fr) | 2003-09-24 |
WO2000002000A1 (fr) | 2000-01-13 |
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