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Pyramid micro-truss laminboard type bearing and thermal protection integrated structure containing runners

A technology of pyramids and sandwich panels, which is applied in aerospace equipment, aerospace aircraft, aerospace safety/emergency devices, etc., can solve the problem that the thermal insulation performance is difficult to meet the design requirements of high-speed aircraft, the structural weight coefficient is large, and the structural function is single and other problems to achieve the effect of improving the heat dissipation effect, improving the bearing capacity and reducing the weight coefficient

Inactive Publication Date: 2016-06-15
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the common lightweight sandwich structures (such as honeycomb panels, grid panels, etc.) are often large in scale, large in structure weight coefficient, single in structure and function, and difficult to meet the design requirements of high-speed aircraft in terms of thermal insulation performance due to the limitation of manufacturing process.

Method used

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  • Pyramid micro-truss laminboard type bearing and thermal protection integrated structure containing runners
  • Pyramid micro-truss laminboard type bearing and thermal protection integrated structure containing runners
  • Pyramid micro-truss laminboard type bearing and thermal protection integrated structure containing runners

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Embodiment Construction

[0031] like Figure 1-Figure 6 As shown, a pyramidal micro-truss sandwich plate bearing and thermal protection integrated structure with flow channels includes 16 structural units 1, and the structural units 1 are arranged in a 4×4 matrix;

[0032] The structural unit 1 includes an upper panel 2, a lower panel 3 and a core 4 between the upper panel 2 and the lower panel 3, the core 4 includes 8 micro truss cells 41, the micro The truss unit cells 41 are arranged in a 2×2×2 three-dimensional lattice;

[0033] The micro-truss unit cell 41 is formed by connecting the tops of two pyramid-shaped lattice unit cells 411, and the pyramid-shaped lattice unit cell 411 is a pyramid-shaped structure composed of four rods 4111 with circular cross-sections. , the adjacent micro-truss units 41 are connected by the rods 4111,

[0034] The left and right ends of the upper panel 2 are respectively provided with flow channel wall plates 5 extending towards the direction of the core 4 , and the...

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Abstract

The invention discloses a pyramidal micro-truss sandwich plate bearing and thermal protection integrated structure with flow channels, which includes at least one structural unit, the structural unit includes an upper panel, a lower panel and a core, and the core includes multiple A micro-truss unit cell, the micro-truss unit cell is formed by connecting the tops of two pyramid-shaped lattice unit cells, and the pyramid-shaped lattice unit cell is a pyramid formed by four rods with circular cross-sections type structure, the left and right ends of the upper panel are respectively provided with flow channel wall plates extending towards the direction of the core. The present invention can improve the bearing capacity, defect resistance and impact protection capacity of the present invention at the same time. The flow channel is arranged near the heat source to further improve the heat dissipation effect. By adjusting the flow rate of the cooling liquid, the temperature of the lower panel can be efficiently controlled in one In an appropriate range, it is more conducive to controlling the sealing, reducing the amount of fluid used to reduce the overall weight coefficient of the structure, and the best performance can be obtained by adjusting the size of each part.

Description

technical field [0001] The invention relates to a load-bearing and heat-insulating integrated structure, in particular to a pyramidal micro-truss sandwich plate-type load-bearing and heat-protection integrated structure with flow channels, which is used in the technical field of load-bearing and heat protection. Background technique [0002] With the rapid development of aerospace technology, the unique mechanical environment and performance requirements of aircraft have put forward new requirements for material and structure design: lightweight structure and multi-functional integration. The traditional design scheme usually considers the structural system and the functional system separately, that is, some materials are used to meet the requirements of mechanical properties such as strength and stiffness of the structure, and the other part of the materials is used to meet the requirements of heat insulation, vibration isolation or electronic shielding. This creates a larg...

Claims

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Application Information

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IPC IPC(8): B64G1/22B64G1/52
CPCB64G1/22B64G1/52
Inventor 刘书田陈文炯吴斌张永存吴书豪王向明
Owner DALIAN UNIV OF TECH
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