CN216770350U - Composite filling space lattice laser protection structure - Google Patents
Composite filling space lattice laser protection structure Download PDFInfo
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- CN216770350U CN216770350U CN202220095305.5U CN202220095305U CN216770350U CN 216770350 U CN216770350 U CN 216770350U CN 202220095305 U CN202220095305 U CN 202220095305U CN 216770350 U CN216770350 U CN 216770350U
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Abstract
The utility model discloses a composite filled space lattice laser protection structure, which comprises two side panels and an interlayer structure, wherein the interlayer structure is positioned between the two side panels, the interlayer structure comprises a space lattice structure core and a filler, the filler is a laser ablation resistant material, the laser ablation resistant material is filled in the space lattice structure core, the space lattice structure core is fixed between the two side panels, and the composite filled space lattice laser protection structure realizes the comprehensive protection requirement of integration of laser energy accumulation damage resistance and bearing function by filling the laser ablation resistant material in the space lattice structure core.
Description
Technical Field
The utility model relates to a composite filled space lattice laser protection structure.
Background
The wide application of laser technology in the military field enables modern battlefields to be full of various laser threats, and the laser radiation energy of high-energy laser weapons is quite strong and can generate violent thermal and mechanical damage to acting targets. The ship-based/land-based laser weapon attacks the aerial target, has the excellent performances of high attack speed, sensitive response, high shooting precision and electromagnetic interference resistance, and makes the aircraft face unprecedented severe threats. With the development of airborne laser weapons, the next generation of combat airplanes have the attack ability of instantaneously killing enemy aircraft in medium and short distance, which can completely subvert the mode of air combat control. Therefore, the application of suitable anti-laser shock measures to next generation airplanes and drones is not slow.
At present, the measure of high-energy laser protection of main air targets such as airplanes, missiles, satellites and the like at home and abroad is to adopt new materials and coating protective layers for reinforcement. The laser-resistant reinforcing material developed abroad mainly comprises a diamond film, alumina ceramic, silicon dioxide ceramic and the like, and is mainly applied to local parts of airplane radome, sensor optical window and the like; the protective layer is generally coated with a coating which is resistant to laser ablation and has high reflectivity to laser, and is generally applied to the whole protective surface in a large range.
Because the film and the coating do not have bearing capacity, the film and the coating are easy to peel off and fall under the action of the 'heat-force' destructive effect of laser and complex pneumatic load, so that secondary impact on a machine body is caused, even the engine is possibly damaged after the film and the coating are sucked into an air inlet, and serious potential safety hazards exist; secondly, the thickness of the film and the coating is limited, so that the protection capability against high-energy laser is also limited; in addition, high reflectivity laser ablation resistant coatings, due to their reflectivity characteristics, also naturally conflict with the low detectability requirements of next generation airborne targets.
Therefore, the traditional laser protective coating and coating technology has the problems of difficult bearing, weak protective capability, poor concealment and the like.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model aims to provide a composite filling space lattice laser protection structure which can meet the multifunctional requirements of bearing and laser energy accumulation damage resistance of the structure.
The utility model provides a composite filled space lattice laser protection structure which comprises two side panels and an interlayer structure, wherein the interlayer structure is positioned between the two side panels, the interlayer structure comprises a space lattice structure core body and a filler, the filler is a laser ablation resistant material, the laser ablation resistant material is filled in the space lattice structure core body, and the space lattice structure core body is fixed between the two side panels.
Further, the two side panels are metal plates, preferably aluminum alloy, titanium alloy and high-temperature alloy, and the two side panels are located on the upper side and the lower side of the space lattice structure core body.
Further, the space lattice structure core is a two-dimensional or three-dimensional periodic structure, preferably a corrugated structure, a honeycomb structure, a pyramid structure, or a honeycomb-filled corrugated structure.
Furthermore, the space lattice structure core body can be selected as an enclosed lattice core body, and a filling flow channel is formed in the side wall or two side panels of the space lattice structure core body.
Further, the space lattice structure core body can be selected as a transparent type lattice core body. And a filling flow channel is not required to be arranged when the transparent dot matrix core is filled.
Furthermore, the space lattice structure core body is formed by mutually connecting metal foils and/or metal plates.
Furthermore, the thickness of the metal foil is 0.02 mm-0.4 mm, and the thickness of the metal plate is 0.8 mm-2.0 mm.
Furthermore, the core bodies of the pyramid structure and the corrugated plate structure are prepared from metal plates, and the core bodies of the honeycomb structure and the honeycomb filling corrugated structure are prepared from metal foils.
Further, the thickness of the metal foil is 0.02mm to 0.4mm, preferably 0.05mm to 0.3mm, more preferably 0.08mm to 0.25mm, and particularly preferably 0.1mm to 0.2 mm.
Further, the laser ablation resistant material is a polymer material, preferably a carbon-forming polymer material, a silicon-forming polymer material, or a modified silicone material.
By the scheme, the utility model at least has the following advantages: according to the composite filled space lattice laser protection structure, the laser ablation resistant material is filled in the two-dimensional and three-dimensional periodic space lattice structure core bodies, so that the space lattice laser protection structure has the excellent characteristics of light weight, high energy absorption efficiency, heat dissipation, impact resistance and the like. Meanwhile, the high porosity of the periodic space lattice structure enables the periodic space lattice structure to have the advantages of high specific strength, high specific stiffness, bearing and protection multifunctional performance, designability and the like.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of a composite-filled space lattice laser protection structure according to the present invention;
FIG. 2 is a schematic view of a closed honeycomb structure of the spatial lattice structure core according to the present invention;
FIG. 3 is a schematic diagram of a spatial lattice structure core of the present invention in a transparent pyramid structure;
FIG. 4 is a schematic view of a closed honeycomb-filled corrugated structure as a space lattice structure core according to the present invention;
fig. 5 is a schematic view of the space lattice structure core body of the present invention being a permeable honeycomb filled corrugated structure.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
Example (b): the utility model provides a compound space lattice laser protection structure who fills, includes both sides panel 1 and sandwich structure 2, sandwich structure is located between the both sides panel, sandwich structure includes space lattice structure core 3 and filler 4, the filler is anti laser ablation material, anti laser ablation material is filled in the space lattice structure core, the space lattice structure core is fixed between the both sides panel.
The two side panels are metal plates, preferably aluminum alloy, titanium alloy and high-temperature alloy, and are positioned on the upper side and the lower side of the space lattice structure core body.
The space lattice structure core is a two-dimensional or three-dimensional periodic structure, preferably a corrugated structure, a honeycomb structure, a pyramid structure and a honeycomb filling corrugated structure.
The space lattice structure core body can be selected to be an enclosed type lattice core body, and a filling flow channel is formed in the side wall or the two side panels of the space lattice structure core body.
The space lattice structure core body can be selected as a through type lattice core body. And a filling flow channel is not required to be arranged when the transparent dot matrix core is filled.
The space lattice structure core body is formed by mutually connecting metal foils and/or metal plates.
The thickness of the metal foil is 0.02 mm-0.4 mm, and the thickness of the metal plate is 0.8 mm-2.0 mm.
The core bodies of the pyramid structure and the corrugated plate structure are made of metal plates, and the core bodies of the honeycomb structure and the honeycomb filling corrugated structure are made of metal foils.
The thickness of the metal foil is 0.02mm to 0.4mm, preferably 0.05mm to 0.3mm, more preferably 0.08mm to 0.25mm, and particularly preferably 0.1mm to 0.2 mm.
The laser ablation resistant material is a high polymer material, preferably a carbon forming type high polymer material, a silicon forming type high polymer material and a modified silicone resin material.
According to the space lattice laser protection structure with the composite filling, the laser ablation resistant material is filled in the space lattice structure core, so that the comprehensive protection requirement of laser energy accumulation damage resistance and bearing function integration is met.
The filling flow channel is formed in the side wall or the panel of the space lattice structure core, so that the filling process of the laser ablation resistant material can be performed after the core/panel connecting process, the denaturation of the laser ablation resistant material possibly caused in the vacuum brazing or laser welding process of the core/panel after the laser ablation resistant material is filled is avoided, and the laser resistance attenuation of the laser protection structure is avoided.
By selecting the carbon-forming type or silicon-forming type high polymer material or the modified silicone resin as the main component of the laser ablation resistant material, the material can be ablated and heat can be taken away by decomposition, depolymerization, melting, evaporation, gasification and ionization when the material is irradiated by laser, so that the ablation damage process of the laser is slowed down. Particularly, when the modified silicon resin is used as a laser ablation resistant material, the filler of the modified silicon resin can generate silicon carbide and silicon dioxide ceramic particles through ablation, so that a heat insulation effect can be achieved, and the weakening of the bearing capacity of the bottom layer structure by the thermal destruction effect of laser is further prevented.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a space lattice laser protective structure of compound packing which characterized in that: the sandwich structure is positioned between the two side panels and comprises a space lattice structure core body and a filler, wherein the filler is a laser ablation resistant material, the laser ablation resistant material is filled in the space lattice structure core body, and the space lattice structure core body is fixed between the two side panels.
2. The composite-filled space lattice laser protection structure as claimed in claim 1, wherein: the two side panels are made of metal plates and are positioned on the upper side and the lower side of the space lattice structure core body.
3. The composite-filled space lattice laser protection structure as claimed in claim 2, wherein: the structure of the space lattice structure core body is a two-dimensional or three-dimensional periodic structure.
4. The composite-filled space lattice laser protection structure as claimed in claim 3, wherein: the structure of the space lattice structure core body is any one of a corrugated structure, a honeycomb structure, a pyramid structure and a honeycomb filling corrugated structure.
5. The composite-filled space lattice laser protection structure as claimed in claim 4, wherein: the space lattice structure core is an enclosed lattice core, and filling flow channels are formed in the side wall or the two side panels of the space lattice structure core.
6. The composite-filled space lattice laser protection structure as claimed in claim 4, wherein: the space lattice structure core is a transparent lattice core.
7. The composite filled space lattice laser protection structure as claimed in claim 5 or 6, wherein: the space lattice structure core body is formed by mutually connecting metal foils and/or metal plates.
8. The composite-filled space lattice laser protection structure as claimed in claim 7, wherein: the thickness of the metal foil is 0.02 mm-0.4 mm, and the thickness of the metal plate is 0.8 mm-2.0 mm.
9. The composite-filled space lattice laser protection structure as claimed in claim 8, wherein: the laser ablation resistant material is a high polymer material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220095305.5U CN216770350U (en) | 2022-01-14 | 2022-01-14 | Composite filling space lattice laser protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220095305.5U CN216770350U (en) | 2022-01-14 | 2022-01-14 | Composite filling space lattice laser protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216770350U true CN216770350U (en) | 2022-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220095305.5U Active CN216770350U (en) | 2022-01-14 | 2022-01-14 | Composite filling space lattice laser protection structure |
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| Country | Link |
|---|---|
| CN (1) | CN216770350U (en) |
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- 2022-01-14 CN CN202220095305.5U patent/CN216770350U/en active Active
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