EP4548037A1 - Equipement optronique incorporant un blindage balistique - Google Patents
Equipement optronique incorporant un blindage balistiqueInfo
- Publication number
- EP4548037A1 EP4548037A1 EP23755448.0A EP23755448A EP4548037A1 EP 4548037 A1 EP4548037 A1 EP 4548037A1 EP 23755448 A EP23755448 A EP 23755448A EP 4548037 A1 EP4548037 A1 EP 4548037A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reticular structure
- dimensional reticular
- ballistic armor
- optronic equipment
- armor
- 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
Links
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
- F41H5/00—Armour; Armour plates
- F41H5/02—Plate construction
- F41H5/04—Plate construction composed of more than one layer
- F41H5/0492—Layered armour containing hard elements, e.g. plates, spheres, rods, separated from each other, the elements being connected to a further flexible layer or being embedded in a plastics or an elastomer matrix
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G1/00—Sighting devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G1/00—Sighting devices
- F41G1/38—Telescopic sights specially adapted for smallarms or ordnance; Supports or mountings therefor
- F41G1/383—Protection means therefor
-
- 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
- F41H5/00—Armour; Armour plates
- F41H5/06—Shields
- F41H5/16—Shields for ordnance or tanks
-
- 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
- F41H5/00—Armour; Armour plates
- F41H5/06—Shields
- F41H5/18—Rotating shields
-
- 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
- F41H5/00—Armour; Armour plates
- F41H5/26—Peepholes; Windows; Loopholes
Definitions
- the present disclosure concerns shielding and in particular ballistic shielding intended to protect optronic equipment from the effects of impacts of projectiles or debris at high speed.
- ballistic armor in particular that intended for the protection of optronic equipment such as turret-mounted sights or any other equipment, is made up of massive and relatively thick plates intended to fragment and slow down the projectiles.
- these conventional armors are heavy and rigid, which can have many disadvantages.
- the weight due to ballistic armor may require the use of more powerful and bulky actuators to operate the rotation of the turret on each axis, while their rigidity may require additional means of damping, such as for example the addition of elastomer elements or polymer foams, in order to limit the transmission of forces and vibrations due to impacts to sensitive equipment.
- the deformation of a massive armor 100 following the impact of debris or a projectile 110 can also lead to cracks 120 weakening the massive armor 100 against subsequent impacts, or even spalling on the rear face of the shielding 100, generating secondary debris 130 which may itself even damage the equipment and/or people that the shielding 100 should protect.
- a first aspect of the present disclosure proposes optronic equipment incorporating ballistic armor comprising a three-dimensional reticular structure in order to form an architectural material capable of better absorbing the impacts of projectiles or debris while avoiding the propagation of cracks and spalling and with reduced weight.
- This three-dimensional reticular structure may in particular comprise a regularly repeated unit cell, so as to form a regular structure, but could alternatively be a stochastic structure, with strands and/or thin walls entangled in a substantially random manner.
- the three-dimensional reticular structure can be auxetic, that is to say have a negative Poisson's ratio.
- the compression of the three-dimensional reticular structure in the direction of a ballistic impact would also cause its local contraction perpendicular to the direction of the impact, in this way distributing the energy of this impact by traction on the surrounding regions.
- the ballistic armor can also include one or more panels.
- a panel can for example be placed on an exterior surface of the ballistic armor, so as to fragment the projectiles or debris before their penetration into the three-dimensional reticular structure.
- the ballistic armor comprises two opposing panels, between which the three-dimensional reticular structure is interposed, so as to form a sandwich structure, light but rigid.
- panels arranged on one or more external surfaces of the ballistic armor to arrange at least one panel within the three-dimensional reticular structure, for example interposed between consecutive layers of the three-dimensional reticular structure. .
- At least one property of the three-dimensional reticular structure can evolve along at least one axis. This evolution can be staged, so as to form distinct blocks or layers in the three-dimensional reticular structure, but it can also be gradual.
- An empty volume inside the three-dimensional reticular structure can be at least partially filled with a different material, in order to combine its properties with those of the three-dimensional reticular structure.
- a second aspect of the present disclosure concerns a method for producing ballistic armor of optronic equipment according to the first aspect, comprising a step of additive manufacturing of at least the three-dimensional reticular structure, for example by laser fusion on a bed powder, laser sintering on a powder bed, fused filament deposition, binder jetting, stereolithography, or photocurable resin jetting, so as to easily obtain a complex reticular structure.
- Figure 1 schematically illustrates the effects of a ballistic impact on massive armor.
- Figure 2 schematically illustrates a first embodiment of ballistic armor comprising a three-dimensional reticular structure.
- Figure 3 illustrates the reaction of the three-dimensional reticular structure of the first embodiment to a compressive force.
- FIG. 4 Figure 4 schematically illustrates a second embodiment.
- Figure 5 schematically illustrates an application of ballistic armor according to the second embodiment for the protection of optronic equipment.
- FIG. 6 Figure 6 schematically illustrates a third embodiment.
- FIG. 7 Figure 7 schematically illustrates a fourth embodiment.
- FIG. 8 Figure 8 schematically illustrates a fifth embodiment.
- FIG. 9 Figure 9 schematically illustrates a process for producing ballistic armor according to any of the preceding embodiments.
- a ballistic armor 10 can comprise a three-dimensional reticular structure 20, designed so as to form an architectural material, that is to say with a morphology and/or topology giving it specific improved properties.
- the morphology and/or topology of this three-dimensional reticular structure 20 can be adapted to better absorb the energy of impacts from debris and/or projectiles, and/or limit the deformation of its rear face, the propagation of cracks and/or or chipping on impact.
- the three-dimensional reticular structure 20 can be configured so as to make it auxetic, as illustrated in Figure 3, showing how a force F in compression, such as can be caused by an impact of a projectile or debris at high speed, can also cause a contraction of this three-dimensional reticular structure 20 in a direction perpendicular to that of the compression.
- This lateral contraction can thus make it possible to distribute the force due to the impact laterally over a larger surface and more effectively, while limiting the deformation of the rear face of the ballistic armor 10.
- the three-dimensional reticular structure 20 can be a regular structure, formed by regular repetition of a unit cell 21 formed by an arrangement of strands 22 and/or thin walls in space. It is nevertheless also possible that this three-dimensional reticular structure 20 is a stochastic structure, with a random arrangement of the strands and/or walls.
- the ballistic armor 10 is only formed by the three-dimensional reticular structure 20, it is also possible to combine such a three-dimensional reticular structure with other elements in a manner to combine its properties.
- the ballistic armor 10 can comprise, apart from the three-dimensional reticular structure 20, a solid panel 30 placed on an external face of the ballistic armor 10 in order to fragment the projectiles and/or debris impacting at high speed, while distributing the force transmitted by the impact over a larger surface area of the three-dimensional reticular structure 20.
- This panel 30 can be formed in one piece therewith, or else be made integral with it, for example by gluing, welding or mechanical connection by friction or complementarity of form.
- FIG. 5 also illustrates an application of this ballistic armor 10 for the protection of optronic equipment, and more particularly of optronic equipment 40 in the form of a sight on a turret.
- This optronic equipment 40 can therefore include a set of sensors 50 mounted on a turret 60 which can have one or more axes of rotation, such as for example a vertical axis Z and a horizontal axis X.
- the turret 60 can be motorized with actuators (not illustrated) for each axis of rotation Z,
- both the set of sensors 50 and the actuators of the turret 60 can be vulnerable to impacts, or even vibrations.
- the optronic equipment 40 can therefore comprise a casing 70 in one or more parts each incorporating such ballistic shielding 10.
- the ballistic armor 10 can comprise, apart from the three-dimensional reticular structure 20, solid panels 30, 30' arranged respectively on an external face and an internal face of the ballistic armor 10, with the three-dimensional reticular structure 20 interposed between the two, so as to form a sandwich structure.
- Each of these panels 30 can be formed in one piece with the three-dimensional reticular structure 20, or else be made integral with it for example by gluing, welding or mechanical connection by friction or complementarity of shape. It is thus possible to produce ballistic armor 10 that is rigid in bending but nevertheless light and offering good impact energy absorption properties.
- the ballistic armor 10 can comprise a first solid panel 30 disposed on an external face of the ballistic armor 10 and a second panel 30' interposed between two layers 20a, 20b of the three-dimensional reticular structure 20.
- these layers 20a, 20b can have different properties, and in particular different densities, as illustrated in Figure 8. For this, they can in particular be formed by regular repetition of unit cells 21a, 21 b different respective ones.
- the three-dimensional reticular structure has two distinct layers, with a staged evolution of the properties of the three-dimensional reticular structure along the axis, it is however also possible to have an evolution gradual properties of the three-dimensional reticular structure.
- the properties of the three-dimensional reticular structure 20, and in particular its density can evolve gradually without abrupt change.
- this evolution is in the direction of the thickness, it is also possible to have gradual or abrupt changes in the properties of the three-dimensional reticular structure, to obtain for example different responses to impacts on different areas. of the exterior surface of the ballistic armor.
- an empty volume inside the three-dimensional reticular structure 20 can be at least partially filled with a different material 22, such as for example a foam, so as to form, with the three-dimensional reticular structure 20, a composite material combining properties of the three-dimensional reticular structure 20 and the material 22.
- a different material 22 such as for example a foam
- a method of producing ballistic armor 10 may comprise a step of additive manufacturing of at least the three-dimensional reticular structure 20, for example from a digital model thereof.
- This digital model can be decomposed into a series of successive slices, and the additive manufacturing of at least the three-dimensional reticular structure proceed by the deposition and/or consolidation, selective and controlled by computer, of successive layers of material corresponding to the slices of the model. digital.
- layers of powder 90 are successively applied, and between the application of successive layers, a laser beam 91, directed by a computer 92 on the basis of a digital model, broken down into successive slices, of at least the three-dimensional reticular structure 20, will selectively melt the powder according to the shape of the corresponding slice of the digital model, so as to selectively consolidate the powder material during its cooling and re-solidification and thus manufacture at least this three-dimensional reticular structure 20 according to the digital model.
- other elements of the ballistic armor 10 for example one or more solid panels 30, 30', can be manufactured by additive manufacturing in conjunction with the three-dimensional reticular structure 20, so as to form a single-piece assembly.
- RECTIFIED SHEET (RULE 91) ISA/EP subsequent finishing and/or assembly steps to obtain the ballistic armor 10 in its final form.
- the process illustrated is an additive manufacturing process by laser sintering on a powder bed
- other types of additive manufacturing processes such as for example laser fusion on a powder bed, fused filament deposition, binder jetting, stereo-lithography, or photocurable resin jetting, are also possible in an analogous manner.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Luminescent Compositions (AREA)
- Silicon Compounds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2206554A FR3137445B1 (fr) | 2022-06-29 | 2022-06-29 | Blindage balistique et son procédé de production |
| PCT/FR2023/050982 WO2024003505A1 (fr) | 2022-06-29 | 2023-06-28 | Equipement optronique incorporant un blindage balistique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4548037A1 true EP4548037A1 (fr) | 2025-05-07 |
Family
ID=83690596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23755448.0A Pending EP4548037A1 (fr) | 2022-06-29 | 2023-06-28 | Equipement optronique incorporant un blindage balistique |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4548037A1 (fr) |
| FR (1) | FR3137445B1 (fr) |
| IL (1) | IL317978A (fr) |
| WO (1) | WO2024003505A1 (fr) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018193023A1 (fr) * | 2017-04-19 | 2018-10-25 | Thales | Système optronique pour plate-forme et plate-forme associée |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8342074B1 (en) * | 2010-05-20 | 2013-01-01 | General Dynamics Armament And Technical Products, Inc. | Vision system |
| MX2019008371A (es) * | 2017-04-24 | 2019-09-16 | Rigidcore Group Llc | Material laminado, molde y metodos de fabricacion y uso del material laminado y molde. |
| GB2567677A (en) * | 2017-10-20 | 2019-04-24 | Bae Systems Plc | Armour Assembly |
| WO2019079852A1 (fr) * | 2017-10-24 | 2019-05-02 | Jack C Swan | Blindage à micro-treillis |
| CN108050891B (zh) * | 2017-12-19 | 2023-10-31 | 北京理工大学 | 一种复合夹芯防弹结构 |
| WO2020102335A1 (fr) * | 2018-11-13 | 2020-05-22 | VICIS, Inc. | Couches de microtreillis |
| EP4250995A4 (fr) * | 2020-11-25 | 2025-01-15 | Gentex Corporation | Structure en treillis pour l'atténuation de chocs |
-
2022
- 2022-06-29 FR FR2206554A patent/FR3137445B1/fr active Active
-
2023
- 2023-06-28 WO PCT/FR2023/050982 patent/WO2024003505A1/fr not_active Ceased
- 2023-06-28 EP EP23755448.0A patent/EP4548037A1/fr active Pending
- 2023-06-28 IL IL317978A patent/IL317978A/en unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018193023A1 (fr) * | 2017-04-19 | 2018-10-25 | Thales | Système optronique pour plate-forme et plate-forme associée |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3137445B1 (fr) | 2025-09-05 |
| WO2024003505A1 (fr) | 2024-01-04 |
| FR3137445A1 (fr) | 2024-01-05 |
| IL317978A (en) | 2025-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2153159B9 (fr) | Procédé de fabrication d'un matériau composite, notamment pour la protection balistique, et matériau composite obtenu | |
| EP1412693B1 (fr) | Blindage composite multicouches | |
| US7685922B1 (en) | Composite ballistic armor having geometric ceramic elements for shock wave attenuation | |
| CN109141123B (zh) | 一种约束陶瓷-金属复合防弹装甲板及其制备方法 | |
| US8528457B2 (en) | Method of producing a hybrid tile metal matrix composite armor | |
| CA2083577A1 (fr) | Blindage balistique de protection corporelle | |
| EP2268482B1 (fr) | Peau amortissante de protection de pieces composites | |
| US20160375648A1 (en) | Structural panel insert having encapsulated filler materials | |
| ZA200609276B (en) | Ceramic armour plate, armouring system, and method for producing a ceramic armour plate | |
| US8464626B2 (en) | Multi-layer metal matrix composite armor with edge protection | |
| WO2024003505A1 (fr) | Equipement optronique incorporant un blindage balistique | |
| WO2022234228A2 (fr) | Meta-materiau acoustique et procede pour sa fabrication additive | |
| CA2907287A1 (fr) | Panneau ballistique | |
| EP3043347B1 (fr) | Panneau d'habillage insonorisant, et aéronef | |
| CN115752096B (zh) | 一种抗冲击的复合层结构及其制造方法和应用 | |
| US20120247312A1 (en) | Structural panel insert with honeycomb core | |
| CN113899249A (zh) | 一种金属封装陶瓷球复合装甲、制备方法及抗多发弹轻质靶板 | |
| FR3038043A1 (fr) | Enveloppe de tete militaire et procede de fabrication d'une telle tete militaire | |
| FR2465186A1 (fr) | Procede pour le renforcement des ecrans balistiques ainsi que les blindages obtenus par l'application de tels ecrans | |
| FR3059766A1 (fr) | Structure anti impact multicouche | |
| CN220931873U (zh) | 一种一体式抗多发弹结构装甲板 | |
| CA2813925A1 (fr) | Structure de bord d'attaque notamment pour entree d'air de nacelle de moteur d'aeronef | |
| FR2628831A1 (fr) | Blindage pour la protection contre les charges creuses | |
| WO2024146992A1 (fr) | Module tridimensionnel élémentaire constitutif d'un matériau architecturé | |
| CN116907280A (zh) | 一种陶瓷增强镁基复合装甲板及其制备方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| 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: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20250122 |
|
| 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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
| INTG | Intention to grant announced |
Effective date: 20251223 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |