CN209832813U - Folding type buffer sandwich plate - Google Patents
Folding type buffer sandwich plate Download PDFInfo
- Publication number
- CN209832813U CN209832813U CN201821403259.0U CN201821403259U CN209832813U CN 209832813 U CN209832813 U CN 209832813U CN 201821403259 U CN201821403259 U CN 201821403259U CN 209832813 U CN209832813 U CN 209832813U
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- Prior art keywords
- sandwich
- folding
- shaped
- panel
- folding line
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- 239000000872 buffer Substances 0.000 title claims abstract description 34
- 230000003139 buffering effect Effects 0.000 claims abstract description 4
- 230000035939 shock Effects 0.000 abstract description 10
- 230000006872 improvement Effects 0.000 abstract description 5
- 238000011160 research Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000006173 Good's buffer Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The utility model relates to a folding type buffer sandwich plate, which comprises an upper panel, a lower panel and a middle buffer layer arranged between the upper panel and the lower panel, wherein the middle buffer layer adopts a plurality of rows of folding type sandwich structures arranged at equal intervals, and each folding type sandwich structure comprises a folding line sandwich with an S-shaped upper end and a folding line sandwich with an inverted V-shaped upper end opening angle; the upper end of the S-shaped folding line sandwich is fixedly connected with the upper panel, and the lower ends of the S-shaped folding line sandwich and the S-shaped folding line sandwich are fixedly connected with the lower panel. The utility model has the advantages that: the utility model discloses S type broken line structure and the sandwich structure design of the combination formula of the type of falling V structure compromise energy-absorbing ability and structural strength, consequently compare its shock resistance with conventional sandwich panel and show the improvement, and the buffering effect is better.
Description
Technical Field
The utility model relates to a foldable sandwich panel, in particular to better foldable buffer sandwich panel of shock resistance suitable for boats and ships and ocean engineering field.
Background
The folding laser welding sandwich plate structure has the advantages of light weight, high specific strength, corrosion resistance, heat insulation, good sound insulation and noise reduction effects, high impact resistance and the like, and has wide application prospect in the fields of ships and ocean engineering. The laser welding sandwich plate is applied to the construction of warships and aircraft carriers abroad, which shows that the laser welding sandwich plate has good superiority compared with the traditional stiffened plate. And the sandwich plate has good capability of resisting explosion impact when being applied to ship construction, so that the impact resistance of the sandwich plate needs to be improved.
The structural form of the sandwich plate is the key for influencing the shock resistance of the sandwich plate, and the better sandwich structural form can effectively improve the shock resistance of the sandwich plate. However, the current research on sandwich panels still focuses on the aspects of sandwich angle, material thickness, structural size and the like, and although the shock resistance of the sandwich panel is improved to a certain extent after the size optimization and improvement, the improvement is not obvious, and the essential improvement is not brought to the mechanical property of the sandwich panel. The sandwich structure form of the existing sandwich plate is not obviously improved, so the improvement of the mechanical property has limitation.
At present, the research on the buffer sandwich plate is relatively less, and only a few related researches on the honeycomb buffer sandwich plate exist so far; in the aspect of the folding type buffer sandwich plate, no research on the related aspects exists at present.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is not enough to current sandwich panel that shocks resistance, provides a better foldable buffer sandwich panel of shock resistance to improve sandwich panel's energy-absorbing ability.
In order to solve the technical problem, the utility model adopts the technical scheme that: the utility model provides a foldable buffering sandwich panel, includes top panel, lower panel and sets up the middle buffer layer between top panel and lower panel, and its innovation point lies in: the middle buffer layer adopts a plurality of rows of folding sandwich structures arranged at equal intervals, each folding sandwich structure comprises an S-shaped folding sandwich with an upper end folding angle of 85-95 degrees and an inverted V-shaped folding sandwich with an upper end opening angle of 30-40 degrees, and the proportion range of five folding lines in the S-shaped folding sandwich and the inverted V-shaped folding sandwich is as follows: 0.9-1.1: 1.8-2.2: 0.9-1.1: 9-11; the upper end of the S-shaped folding line sandwich is fixedly connected with the upper panel, and the lower ends of the S-shaped folding line sandwich and the S-shaped folding line sandwich are fixedly connected with the lower panel.
Furthermore, the height of the S-shaped structure in the folding line sandwich with the S-shaped upper end is not more than
The folding buffer sandwich plate has 1/3 of the whole thickness and is not less than 1/5 of the whole thickness of the folding buffer sandwich plate.
Furthermore, the height of the inverted V-shaped structure in the folded line sandwich with the inverted V-shaped upper end is 2/3-4/5 of the whole thickness of the folding type buffer sandwich plate.
The utility model has the advantages that:
(1) the folding type buffer sandwich plate of the utility model adds the S-shaped fold line structure in the sandwich of the buffer sandwich plate, and the fold line structure is compressed and deformed under the action of shock waves, thereby playing a good buffer role for the pressure of the shock waves; meanwhile, the inverted V-shaped structure in the sandwich core provides support for the whole structural strength to prevent large deformation, and the impact resistance of the buffer sandwich plate is obviously improved and the buffer sandwich plate still has better structural strength under the combined action of the inverted V-shaped structure and the buffer sandwich plate; the combined sandwich structure design takes energy absorption capacity and structural strength into consideration, so that the impact resistance of the sandwich plate is obviously improved and the buffering effect is better compared with the conventional sandwich plate;
(2) the utility model discloses foldable buffer sandwich plate, through the angle of bending of optimizing adjustment S type structure, the opening angle of type of falling V structure, S type structure and the high proportion of type of falling V structure increase foldable buffer sandwich plate 'S energy-absorbing ability, improve sandwich plate' S shock resistance.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural view of the folding type buffer sandwich plate of the present invention.
Detailed Description
The following examples are presented to enable those skilled in the art to more fully understand the present invention and are not intended to limit the scope of the present invention.
Examples
The folding type buffer sandwich panel of the embodiment comprises an upper panel 1, a lower panel 2 and an intermediate buffer layer 3 arranged between the upper panel 1 and the lower panel 2, wherein the intermediate buffer layer 3 adopts a plurality of rows of folding type sandwich structures arranged at equal intervals, each folding type sandwich structure comprises a folding line sandwich 31 with an S-shaped upper end and a folding line sandwich 32 with a V-shaped upper end, and the inverted V-shaped structure in the folding line sandwich 32 with the inverted V-shaped upper end is fixedly connected with the lower end of the S-shaped structure in the sandwich 31 with the S-shaped upper end.
In the embodiment, the bending angle of the S-shaped structure in the folding line sandwich 31 with the S-shaped upper end is 85-95 degrees, and the optimal angle is 90 degrees; the opening angle of an inverted V-shaped structure in the broken line sandwich 32 with the inverted V-shaped upper end is 30-40 degrees, and the optimal angle is 35 degrees; the height of the S-shaped structure in the folding line sandwich 31 with the S-shaped upper end is not more than 1/3 of the whole thickness of the folding type buffer sandwich plate and not less than 1/5 of the whole thickness of the folding type buffer sandwich plate, the height of the inverted V-shaped structure in the folding line sandwich 32 with the inverted V-shaped upper end is 2/3-4/5 of the whole thickness of the folding type buffer sandwich plate, the proportion range of the five folding lines is 0.9-1.1: 1.8-2.2: 0.9-1.1: 9-11, and the optimal proportion is 1:2:1:10: 10; this ratio does not include weld break angles, the size of which can be determined by the actual welding process. The folding line sandwich 31 with the S-shaped upper end is fixedly connected with the upper panel 1, and the lower ends of the folding line sandwich 31 with the S-shaped upper end and the folding line sandwich 32 with the inverted V-shaped upper end are fixedly connected with the lower panel.
The angle and proportion type selection considers three aspects of structure quality, energy absorption and deformation, if the proportion of the S-shaped structure is too large, the strength of the V-shaped structure is reduced, the sandwich plate is easy to generate large deformation, and the strength of the whole structure is reduced; if the proportion of the S-shaped structure is too small, the S-shaped structure is difficult to be folded and deformed when receiving impact load, so that energy absorption is remarkably reduced, and the structure mass is increased. Therefore, the above angle and ratio ranges are selected for comprehensive consideration. The optimal angle and proportion are structural parameters determined by a large number of numerical analysis calculation, so that the method is convenient for actual manufacturing and has optimal structural performance.
The basic principles and main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a foldable buffering sandwich panel, includes top panel, lower panel and sets up the middle buffer layer between top panel and lower panel, its characterized in that: the middle buffer layer adopts a plurality of rows of folding sandwich structures arranged at equal intervals, each folding sandwich structure comprises an S-shaped folding sandwich with an upper end folding angle of 85-95 degrees and an inverted V-shaped folding sandwich with an upper end opening angle of 30-40 degrees, and the proportion range of five folding lines in the S-shaped folding sandwich and the inverted V-shaped folding sandwich is as follows: 0.9-1.1: 1.8-2.2: 0.9-1.1: 9-11; the upper end of the S-shaped folding line sandwich is fixedly connected with the upper panel, and the lower ends of the S-shaped folding line sandwich and the S-shaped folding line sandwich are fixedly connected with the lower panel.
2. The folding bumper sandwich panel of claim 1, wherein: the height of the S-shaped structure in the folding line sandwich with the S-shaped upper end is not more than 1/3 of the whole thickness of the folding buffer sandwich plate and not less than 1/5 of the whole thickness of the folding buffer sandwich plate.
3. The folding bumper sandwich panel of claim 1, wherein: the height of the inverted V-shaped structure in the fold line sandwich with the inverted V-shaped upper end is 2/3-4/5 of the whole thickness of the folding type buffer sandwich plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018211476814 | 2018-07-19 | ||
| CN201821147681 | 2018-07-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209832813U true CN209832813U (en) | 2019-12-24 |
Family
ID=68888883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821403259.0U Expired - Fee Related CN209832813U (en) | 2018-07-19 | 2018-08-29 | Folding type buffer sandwich plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209832813U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109334138A (en) * | 2018-08-29 | 2019-02-15 | 江苏科技大学 | A kind of collapsible shock-absorbing clip laminate and preparation method thereof |
-
2018
- 2018-08-29 CN CN201821403259.0U patent/CN209832813U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109334138A (en) * | 2018-08-29 | 2019-02-15 | 江苏科技大学 | A kind of collapsible shock-absorbing clip laminate and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191224 |
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| CF01 | Termination of patent right due to non-payment of annual fee |