Impact-resistant energy absorption structure
A technology of energy absorption and absorption structure, applied in the direction of shock absorber, spring/shock absorber, elastic shock absorber, etc., can solve the problems of limited specific energy absorption capacity, limited energy absorption capacity, short crushing distance, etc., to achieve The effect of improving specific energy absorption capacity, increasing plastic deformation capacity, and increasing the number
Active Publication Date: 2018-12-07
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF3 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the "sandwich" structure has a limited crushing distance due to its geometrical characteristics, and the deformation and crushing mode of the core tube is single. It mainly relies on a limited number of plastic hinges to generate plastic deformation to absorb energy, and the specific energy absorption capacity is still limited.
The "sandwich" impact-resistant energy-absorbing structure known to have the best energy-absorbing effect is the article "Nested tube system applicable to protective structures" published in "International Journal of Impact Engineering" in 2017 by Z.L Yu, P.Xue and Z.Chen Against blast shock", its research structure still has the problems of single crushing mode, short crushing distance, and limited energy absorption capacity
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 1
[0020] An impact-resistant energy absorbing structure, comprising: an upper cladding plate 1, an intermediate core tube 2, a first hollow tube 3, a second hollow tube 4, a third hollow tube 5 and a lower cladding plate 6; the intermediate core tube 2 is located on the upper cladding Between the plate 1 and the lower cladding plate 6; the first hollow tube 3, the second hollow tube 4 and the third hollow tube 5 are located in the middle of the middle core tube 2; that is, adding Three hollow tubes; the overall structure is installed as figure 1 shown.
[0021] Connection relationship:
[0022] The upper cladding plate 1 and the lower cladding plate 6 are steel structures with a size of 40*20*2mm. The middle core tube 2 has a length of 20mm, an outer diameter of 40mm, and a thickness of 1.6mm. The first hollow tube 3, the second hollow tube 4 and the third hollow tube have a thickness of 1.2mm, a length of 20mm, and an outer diameter of 14.7mm. The first hollow tube 3, the se...
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
Login to View More Abstract
The invention relates to an impact-resistant energy absorption structure, and belongs to the field of protection. According to the structure, three 120-degree uniformly-distributed inner tubes are arranged in a sandwich-shaped middle core tube and are arranged according to a certain direction; and under the impact action, the middle core tube firstly collapses, then the upper inner tube generateslateral slippage and deformation, under the mutual actions of the middle core tube and the three inner tubes, a coating type three-tube transverse side-by-side state is formed and finally collapse occurs, the structure provides a novel combined collapse mode, and the energy absorption capacity of the structure can be improved.
Description
technical field [0001] The invention relates to an anti-impact energy absorbing structure, which belongs to the field of protection. Background technique [0002] With the development of society, the voice of the public on the protection of personal and public facilities for human safety is increasing day by day. The legal sanctions faced by the injury caused by the failure of the mechanical structure to the personnel are also becoming increasingly strict. Since the 1970s, the research on energy-absorbing structures and materials used to dissipate the kinetic energy generated by collisions (or caused by strong dynamic loads) has received more and more attention. Energy absorbing structures are mainly used in application fields such as improving the crashworthiness of vehicles, the safety protection ability of highways, the protection ability of industrial accidents, personal safety protection and structural material packaging. [0003] The "sandwich" composite energy absor...
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): F16F7/12
CPCF16F7/128
Inventor 王成徐斌徐文龙栗皓于洪坤
Owner BEIJING INSTITUTE OF TECHNOLOGYGY