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A kind of truss lattice sandwich structure

A structure and truss-like technology, which is applied in the field of truss-like lattice sandwich structures, can solve problems such as complex structures, safety, and poor shear performance, and achieve improved shear performance, novel and reasonable structural design, and excellent mechanical properties. performance effect

Inactive Publication Date: 2017-10-03
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of truss lattice sandwich structure, firstly by optimizing its structural parameters to improve its shear performance; secondly, analyze the laying angle of the panel and the core, the thickness difference between the upper and lower panels and the inherent impact of the panel thickness on the structure In order to solve the safety problems caused by the poor shear performance of the existing truss-like lattice sandwich structure due to the complex structure and the resonance of the structure

Method used

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  • A kind of truss lattice sandwich structure
  • A kind of truss lattice sandwich structure
  • A kind of truss lattice sandwich structure

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specific Embodiment approach 1

[0031] Specific implementation mode one: combine figure 1 , figure 2 , image 3 , Figure 7 , Figure 8 , Figure 9 , Figure 13 and Figure 15 Describe this embodiment, this embodiment comprises upper panel 1, lower panel 2, a plurality of first splicing laths 3 and a plurality of second splicing laths 4, each first splicing laths 3 is uniformly processed along its length direction A plurality of first convex curved surfaces 3-1 and a plurality of first concave curved surfaces 3-2, the first convex curved surfaces 3-1 and the first concave curved surfaces 3-2 are arranged alternately and have the same shape; Its length direction is uniformly processed with a plurality of second convex curved surfaces 4-1 and a plurality of second concave curved surfaces 4-2, the second convex curved surfaces 4-1 and the second concave curved surfaces 4-2 are arranged alternately and have the same shape, and the plurality of second convex curved surfaces 4-1 and second concave curved su...

specific Embodiment approach 2

[0032] Specific implementation mode two: combination figure 1 and image 3 Describe this embodiment, in this embodiment, a plurality of first splicing slats 3 are evenly distributed on the upper end surface of the lower panel 2 along the length direction of the lower panel 2, and a plurality of second splicing slats 4 are evenly distributed along the width direction of the lower panel 2 On the upper end face of the lower panel 2. In this embodiment, the orientations of the multiple first splicing slats 3 and the orientations of the multiple second splicing slats 4 are perpendicular to the edge of the lower panel 2, and this structure is called a 90° symmetrical truss point. Sandwich structure. The connection relationship between the plurality of first splicing strips 3 and the plurality of second splicing strips 4 and the upper panel 1 is the same as that of the lower panel 2 . Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0033] Specific implementation mode three: combination Figure 7 and Figure 9Describe this embodiment, in this embodiment, a plurality of first splicing slats 3 are evenly distributed on the upper end surface of the lower panel 2 along a diagonal direction of the lower panel 2, and a plurality of second splicing slats 4 are arranged along the direction of the lower panel 2. The direction of the other diagonal line is evenly distributed on the upper end surface of the lower panel 2. In this embodiment, the directions of multiple first spliced ​​slats 3 and multiple second spliced ​​slats 4 are parallel to the diagonals of the lower panel 2, and this structure is called 45° positive symmetry. Truss lattice sandwich structure. The connection relationship between the plurality of first splicing strips 3 and the plurality of second splicing strips 4 and the upper panel 1 is the same as that of the lower panel 2 . Other components and connections are the same as those in the fir...

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Abstract

A kind of truss lattice sandwich structure relates to a structure. The purpose of the present invention is to solve the safety problems caused by the existing truss-like lattice sandwich structure due to its complex structure, poor shear performance and structural resonance. The present invention comprises an upper panel, a lower panel, a plurality of first splicing slats and a plurality of second splicing slats, and each first splicing slat is processed with a plurality of first convex curved surfaces and a plurality of first splicing slats along its length direction. Concave curved surface, the first convex curved surface and the first concave curved surface are arranged alternately and have the same shape; each second spliced ​​strip is uniformly processed with multiple second convex curved surfaces and multiple second concave curved surfaces along its length direction, and the second convex curved surface Alternately arranged with the second concave curved surface and having the same shape, a plurality of first splicing slats and a plurality of second splicing slats are arranged crosswise between the upper panel and the lower panel. The invention provides various types of truss-like lattice sandwich structures, all of which have high-quality shear performance and shock absorption effect. The invention is used in the aerospace field.

Description

technical field [0001] The invention specifically relates to a truss-like lattice sandwich structure. Background technique [0002] Composite materials are materials with new properties composed of two or more materials with different properties through physical or chemical methods. Composite materials have many advantages that other materials do not have, such as high specific strength, high specific modulus, good designability, simple manufacturing process, good thermal stability and high temperature performance. Different types of composite materials also have different excellent properties. , such as fatigue resistance, impact resistance, electromagnetic wave permeability, vibration damping and corrosion resistance, etc. Composite materials are widely used. In the field of aviation, composite materials have been applied to aircraft fuselage, wings, cockpits, propellers, radomes, and wing surface rectification devices at home and abroad. In aerospace engineering, compos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29B11/14
Inventor 泮世东陈志明黄林周振功吴林志
Owner HARBIN INST OF TECH
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