Sandwich board with sine-cosine continuous beam structure and orthogonally arranged cores and preparation method of sandwich board
An orthogonal arrangement and sine-cosine technology, applied in the field of sandwich panel preparation, can solve the problems of overall strength influence, rod structure buckling, panel damage, etc., achieve good protection effect, reduce stress concentration phenomenon, and prevent breakdown Effect
Inactive Publication Date: 2018-11-06
HARBIN ENG UNIV
View PDF7 Cites 6 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At present, sandwich panels mostly use pyramid or honeycomb lattice structures. Although this structure has superior performance, it is prone to stress concentration at the contact between the upper and lower panels and the core, and will cause damage to the panels under high loads. structural failure
In addition, the existing sandwich panels with a lattice structure mostly use a rod structure, which is prone to structural buckling of the rods under high loads, which has a great impact on the overall strength
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0033] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
[0034] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:
[0035] This embodiment is a sandwich panel with sinusoidal continuous beam structure cores arranged orthogonally, including a metal front panel 1, a sine core 2, a cosine core 3 and a metal rear panel 4;
[0036] The sinusoidal core 2 is composed of a plurality of sinusoidal core monomers 5-1; each sinusoidal core monomer 5-1 is made of metal plates of different thick...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| size | aaaaa | aaaaa |
Login to View More
Abstract
The invention provides a sandwich board with a sine-cosine continuous beam structure and orthogonally arranged cores and a preparation method of the sandwich board. A wire cutting technology is applied to metal plates of different thicknesses to obtain square-section metal wires conforming to a sine or cosine law, thereby obtaining sine or cosine core single bodies; the sine core single bodies andthe cosine core single bodies are arranged in an orthogonal manner and welded to an upper surface metal board and a lower surface metal board to obtain the sandwich board with the sine-cosine continuous beam structure and the orthogonally arranged cores. According to the method, the traditional sandwich board pyramid type or honeycomb lattice structure is replaced by introducing the sine cores and the cosine cores, thereby avoiding the structural flexion of a bar in the traditional bar structure; in addition, a shock wave reaching a sine or cosine peak or trough is dispersed along a metal wire, so that the stress concentration at the contact between a surface board and a core is weakened, and the shock absorption effect is enhanced.
Description
technical field [0001] The invention relates to a sandwich panel, and also relates to a preparation method of the sandwich panel. Background technique [0002] The sandwich panel is composed of a high-density high-strength upper panel, a lower panel and a low-density low-strength core. Compared with the ordinary board formed of a unified material, it has the characteristics of light weight, high strength and high rigidity, as well as good heat insulation effect and good shock absorption and energy absorption effect. It is widely used in structures with high strength and hardness. [0003] In the field of safety protection, sandwich panel structures are widely used. At present, sandwich panels mostly use pyramid or honeycomb lattice structures. Although this structure has superior performance, it is prone to stress concentration at the contact between the upper and lower panels and the core, and will cause damage to the panels under high loads. Structural failure. In addi...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/01B32B3/08
CPCB32B15/01B32B3/08B32B2307/558B32B2307/56
Inventor 曲嘉陈嘉伟杨丽红庞跃钊吴林志于国财杨金水鞠殿伟
Owner HARBIN ENG UNIV