CN114060445A - Three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb - Google Patents
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/12—Vibration-dampers; Shock-absorbers using plastic deformation of members
- F16F7/121—Vibration-dampers; Shock-absorbers using plastic deformation of members the members having a cellular, e.g. honeycomb, structure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/12—Vibration-dampers; Shock-absorbers using plastic deformation of members
- F16F7/128—Vibration-dampers; Shock-absorbers using plastic deformation of members characterised by the members, e.g. a flat strap, yielding through stretching, pulling apart
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2224/00—Materials; Material properties
- F16F2224/02—Materials; Material properties solids
- F16F2224/0225—Cellular, e.g. microcellular foam
Abstract
The invention discloses a three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb, and belongs to the technical field of safety protection. The chiral honeycomb is composed of a straight-wall honeycomb framework and a curved surface, the straight-wall honeycomb framework is composed of honeycomb cells, and the curved surface and the adjacent curved surface are mutually collided when impacted; the curved surface is spliced on the honeycomb cell element to form the three-dimensional curved wall mixed phase chiral honeycomb. Compared with the prior art, the invention has the beneficial effects that: according to the three-dimensional curved-wall mixed-phase chiral honeycomb, energy is dissipated by mutual interference of adjacent curved surfaces, a novel energy absorption mechanism is formed, the advantage of stable force-displacement curve of the traditional straight-wall honeycomb structure is kept, and the total energy absorption amount and specific energy absorption are greatly improved on the premise of not wasting extra space. Meanwhile, the axial rigidity of the curved surface with the wide upper part and the narrow lower part is greatly improved, and the average value of a force-displacement curve can be greatly improved.
Description
Technical Field
The invention relates to the technical field of safety protection, in particular to a three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb. The three-dimensional curved wall mixed phase chiral honeycomb is used as an energy-absorbing protection device in the technical field of safety protection.
Background
In recent years, with the improvement of the technological level and the development of tool equipment, the burst frequency and the destructive power of emergency impact accidents such as collision, explosion and the like are continuously improved, and serious damage is caused to the safety of personnel and property. Therefore, the impact protection device with high energy absorption performance and stable deformation mode is designed, and has important significance in the field of safety protection engineering.
First, the conventional energy-absorbing structure dissipates energy by means of deformation of the units, but the energy dissipated by means of the conventional energy-absorbing mechanism is limited, and if the units can conflict with each other while the unit potential is exerted, a new energy-absorbing mechanism can be formed, and the material and space utilization rate is improved. Secondly, the novel energy-absorbing protection device needs to have the functions of stable force-displacement curve, strong energy-absorbing capacity and high energy-absorbing efficiency. In order to ensure the safety of personnel and equipment, the energy absorption protection device not only needs to efficiently and quickly dissipate impact energy, but also needs to control the maximum impact force within a certain range, so that a force-displacement curve is required to have higher average value and stability. Finally, the new energy absorbing guard needs to have a stable deformation energy absorbing mode. Some energy-absorbing structures show stronger energy-absorbing capacity when bearing axially, but the deformation mode is unstable, uncontrollable phenomena such as random buckling and overturning are easy to occur, and if the deformation process can be guided through the configuration design, a more stable and reliable deformation energy-absorbing mode can be generated.
Therefore, the design of the impact protection device with excellent energy absorption capacity and stable deformation mode is meaningful work. The method has important values for improving the utilization rate of materials and space, rapidly and efficiently dealing with accidents and reducing life and property loss.
Disclosure of Invention
In order to solve the problems of poor energy absorption effect, low stability of deformation mode and low safety in the using process of the existing energy absorption protection device in the background art, the invention provides a three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb. The three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb is provided with a structure with a wide upper part and a narrow lower part, so that the axial rigidity of a curved surface is greatly improved, and the average value of a force-displacement curve can be greatly improved. Compared with a honeycomb energy absorber with a straight wall structure, the energy absorber has a more stable and controllable deformation energy absorption mode. In addition, in the using process, the three-dimensional curved-wall mixed-phase chiral honeycomb dissipates energy through mutual interference of adjacent curved surfaces to form a novel energy absorption mechanism, the advantage of stable force-displacement curve of the traditional straight-wall honeycomb structure is kept, and the total energy absorption amount and specific energy absorption are greatly improved on the premise of not wasting extra space.
In order to achieve the purpose, the technical scheme of the three-dimensional curved wall mixed phase chiral honeycomb comprises the following steps:
a three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb is composed of a straight-wall honeycomb framework and curved surfaces, wherein the straight-wall honeycomb framework is composed of honeycomb cells, and the curved surfaces and the adjacent curved surfaces are mutually collided when impacted; the curved surface is spliced on the honeycomb cell element to form the three-dimensional curved wall mixed phase chiral honeycomb. In the using process, the three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb dissipates energy through mutual interference of adjacent curved surfaces to form a novel energy absorption mechanism, keeps the advantage of stable force-displacement curve of the traditional straight-wall honeycomb structure, and greatly improves the total energy absorption amount and specific energy absorption ratio on the premise of not wasting extra space. In addition, all the curved surfaces are connected with each other in a stable structure mode of the straight-wall honeycomb framework, and the formed chiral honeycomb has overall stability, so that the characteristic of gentle force-displacement curve is kept.
In a preferred embodiment, the cross-sectional shape of the honeycomb cells is a regular quadrilateral.
In a preferred embodiment, adjacent curved surfaces of the curved surfaces in the positive direction of the honeycomb cell have opposite initial phases, and the adjacent curved surfaces intersect at the vertex of the honeycomb cell. Adjacent curved surfaces will significantly interfere with each other during deformation.
In a preferred embodiment, the initial phase of the non-adjacent curved surfaces in the positive direction of the cell in which they are located is the same or opposite.
As an alternative embodiment, the curved surfaces have the same cross-sectional shape and the same size at any horizontal height z.
In a preferred embodiment, the curved surface is wide at the top and narrow at the bottom. The curved surface is set to be a structure with a wide upper part and a narrow lower part, so that the axial rigidity of the curved surface is greatly improved, and the average value of a force-displacement curve can be greatly improved.
Compared with a honeycomb energy absorber with a straight wall structure, the curved surface structure has a more stable and controllable deformation energy absorption mode. Furthermore, the deformation mode of the honeycomb energy dissipater with the straight wall structure is unstable, and uncontrollable phenomena such as random buckling, overturning and the like are easy to occur; and the curved surface structure with wide top and narrow bottom eliminates the influence of randomness through geometric asymmetry, and the deformation mode is easy to control, stable and reliable.
In a preferred embodiment, the cross-sectional shape of the curved surface at any horizontal height z is a half-cycle sinusoidal wave curve with a frequency w, and the half-cycle sinusoidal wave curve amplitude a (z) with the frequency w increases with increasing horizontal position z.
In a preferred embodiment, the side length a of the cellular cell satisfies a ═ pi/w.
As a preferred embodiment, the amplitude A (z) of the half-period sinusoidal curve of the curved surface at any level z satisfies A (z) ≦ a/2.
In a preferred embodiment, each cell of the chiral honeycomb has the same structure, and the wall thickness of each position is equal.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) according to the three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb disclosed by the invention, energy is dissipated by mutual interference of adjacent curved surfaces to form a novel energy absorption mechanism, the advantage of stable force-displacement curve of the traditional straight-wall honeycomb structure is kept, and the total energy absorption amount and specific energy absorption are greatly improved on the premise of not wasting extra space.
(2) The axial rigidity of the curved surface with the wide upper part and the narrow lower part is also greatly improved, and the average value of a force-displacement curve can be greatly improved.
(3) The curved surfaces are connected with each other in a stable structure form of the regular quadrilateral straight-wall honeycomb framework, and the formed chiral honeycomb has overall stability, so that the characteristic of gentle force-displacement curve is maintained.
(4) Compared with a honeycomb energy dissipation device with a straight wall structure, the three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb has a more stable and controllable deformation energy absorption mode. Furthermore, the deformation mode of the honeycomb energy dissipater with the straight wall structure is unstable, and uncontrollable phenomena such as random buckling, overturning and the like are easy to occur; and the curved surface structure with wide top and narrow bottom eliminates the influence of randomness through geometric asymmetry, and the deformation mode is easy to control, stable and reliable.
Drawings
FIG. 1 is an oblique view of a three-dimensional curved-wall mixed-phase orthoquadrilateral chiral honeycomb of the present invention;
FIG. 2 is a top view of a three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb of the present invention;
fig. 3 is a schematic view of the forward direction of the three-dimensional curved-wall mixed-phase chiral honeycomb cell of fig. 2;
FIG. 4 is a horizontal cross-section of a three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb of the present invention in the bottom layer;
FIG. 5 is a horizontal cross-section of a three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb of the present invention at the top level;
FIG. 6 is a schematic diagram of deformation of the three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb of FIG. 1 under a compressive load;
FIG. 7 is a schematic diagram of the deformation of a conventional straight-walled quadrilateral honeycomb under a compressive load;
fig. 8 is a force-displacement graph of the three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb and the conventional straight-wall quadrilateral honeycomb of fig. 1 under a compressive load.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description herein, references to the description of the terms "embodiment," "implementation," etc., mean that a particular feature, structure, dimension, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, dimensions, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Referring to fig. 1 to 8, fig. 1 is an oblique view of a three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb; FIG. 2 is a top view of a three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb; fig. 3 is a schematic view of the positive direction of the three-dimensional curved-wall mixed-phase positive quadrilateral chiral honeycomb cell of fig. 2; FIG. 4 is a horizontal cross section of a three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb on a bottom layer; FIG. 5 is a horizontal cross section of a three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb on the top layer; FIG. 6 is a schematic diagram of deformation of the three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb of FIG. 1 under a compressive load; FIG. 7 is a schematic diagram of the deformation of a conventional straight-walled quadrilateral honeycomb under a compressive load; fig. 8 is a force-displacement graph of the three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb and the conventional straight-wall quadrilateral honeycomb of fig. 1 under a compressive load.
The present invention will be described in further detail with reference to fig. 1 to 8.
Example 1
A three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb is of a thin-wall structure, and the wall thickness of each position is consistent. As shown in fig. 1-5, the chiral honeycomb is composed of a straight-wall honeycomb framework (as shown by black dashed lines in fig. 1-5) and a curved surface, and the straight-wall honeycomb framework is composed of a plurality of honeycomb cells; the curved surface is spliced on the honeycomb cell element to form the three-dimensional curved wall mixed phase chiral honeycomb. More specifically, the straight-wall honeycomb framework and the curved surface are processed by a traditional method or 3D printing. The traditional method is that a single curved wall is processed through a die, then straight notches with proper length and quantity are cut on each curved surface, a series of energy dissipation curved walls are spliced together through the notches, and then the energy dissipation curved walls are reinforced through bonding, welding and other modes. The curved surfaces are connected with each other in a stable structure form of the regular quadrilateral straight-wall honeycomb framework, and the formed chiral honeycomb has overall stability, so that the characteristic of gentle force-displacement curve is maintained.
In this embodiment, as a preferred embodiment, the cross-sectional shape of the honeycomb cell is a regular quadrangle. More specifically, the side length a of the cellular cell satisfies a ═ pi/w.
In this embodiment, as a preferred embodiment, the adjacent curved surfaces of the curved surface in the positive direction of the honeycomb cell (the positive direction of the honeycomb cell is shown in fig. 3) have opposite initial phases, and the adjacent curved surfaces intersect at the vertex of the honeycomb cell; the initial phase of the non-adjacent curved surfaces in the positive direction of the cellular cell in which they are located is the same or opposite. Wherein, adjacent curved surfaces can obviously interfere with each other in the deformation process. In the using process, the three-dimensional curved-wall mixed-phase chiral honeycomb dissipates energy through mutual interference of adjacent curved surfaces to form a novel energy absorption mechanism, the advantage of stable force-displacement curve of the traditional straight-wall honeycomb structure is kept, and the total energy absorption amount and specific energy absorption are greatly improved on the premise of not wasting extra space.
In this embodiment, as a preferred embodiment, the curved surface has a structure with a wide top and a narrow bottom. More specifically, the cross-sectional shape of the curved surface at any horizontal height z is a half-cycle sinusoidal wave curve with a frequency w, and the half-cycle sinusoidal wave curve amplitude a (z) with the frequency w increases with the increase of the horizontal position z. The amplitude A (z) of the half-period sine wave type curve of the curved surface at any horizontal height z meets A (z) less than or equal to a/2.
The curved surface is set to be a structure with a wide upper part and a narrow lower part, so that the axial rigidity of the curved surface is greatly improved, and the average value of a force-displacement curve can be greatly improved.
In addition, compared with a honeycomb energy absorber with a straight wall structure, the curved surface structure has a more stable and controllable deformation energy absorption mode. Furthermore, the deformation mode of the honeycomb energy dissipater with the straight wall structure is unstable, and uncontrollable phenomena such as random buckling, overturning and the like are easy to occur; and the curved surface structure with wide top and narrow bottom eliminates the influence of randomness through geometric asymmetry, and the deformation mode is easy to control, stable and reliable.
Example 2
This example is based on the three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb of example 1, and compares it with the analysis of the uniform impact load of the conventional straight-wall honeycomb.
In the embodiment, the energy-absorbing protection effect of the assembled energy-absorbing protection device when the energy-absorbing protection device bears uniformly distributed impact loads is calculated through finite element numerical simulation. Dynamic simulations were performed using ABAQUS/Explicit.
The wall thickness of the three-dimensional curved-wall mixed-phase orthoquadrangular chiral honeycomb and the wall thickness of the traditional straight-wall honeycomb are both 1mm, the height of the three-dimensional curved-wall mixed-phase orthoquadrangular chiral honeycomb and the traditional straight-wall honeycomb are both 95mm, 201 stainless steel is adopted, the side length of the outline of the framework of the orthoquadrangular straight-wall honeycomb adopted by the three-dimensional curved-wall mixed-phase orthoquadrangular chiral honeycomb is 15mm, and the side length of the traditional straight-wall honeycomb is 15 mm. Two groups of models are arranged on the three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb, and the amplitude ratios of sine wave type curves in the horizontal sections of the top layer and the bottom layer are respectively Amax/A min2 and Amax/Amin＝3.5。
The impact objects are arranged to be square rigid plates to simulate evenly distributed loads, and the impact speed is set to be 10m/s at a constant speed. And obtaining deformation characteristics and load-displacement curves of the three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb and the traditional straight-wall honeycomb when bearing uniformly distributed impact loads according to numerical simulation results, wherein the specific simulation results are shown in fig. 6, 7 and 8. According to the result, adjacent straight walls in the straight-wall honeycomb deform independently, and adjacent curved walls of the three-dimensional curved-wall mixed-phase chiral honeycomb are obviously collided, so that a novel energy absorption mechanism is formed; the deformation of the three-dimensional curved-wall mixed-phase chiral honeycomb is more stable and consistent, while the deformation of the interior of the straight-wall honeycomb is not obvious and the whole body is inclined; the force-displacement curve of the three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb is stable, and the bearing capacity is stronger.
Example 3
The present embodiment is different from embodiment 1 in that: the number of the honeycomb cells is set according to destructive power of actual safety accidents, and correspondingly, the number of the curved surfaces is matched with the number of the honeycomb cells.
Example 4
The present embodiment is different from embodiment 1 in that: the cross sections of the curved surfaces at any horizontal height z are the same in shape and size.
Compared with the prior art, the beneficial effects of the embodiment are as follows: the three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb of the embodiment dissipates energy through mutual interference between the curved surface and the adjacent curved surface, forms a novel energy absorption mechanism, keeps the advantage of stable force-displacement curve of the traditional straight-wall honeycomb structure, and greatly improves the total energy absorption amount and specific energy absorption ratio on the premise of not wasting extra space. In addition, the axial rigidity of the curved surface with the wide upper part and the narrow lower part is also greatly improved, and the average value of the force-displacement curve can be greatly improved. The curved surfaces are connected with each other in a stable structure form of the regular quadrilateral straight-wall honeycomb framework, and the formed chiral honeycomb has overall stability, so that the characteristic of gentle force-displacement curve is maintained. Compared with a honeycomb energy dissipater with a straight wall structure, the three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb in the embodiment has a more stable and controllable deformation energy absorption mode. Furthermore, the deformation mode of the honeycomb energy dissipater with the straight wall structure is unstable, and uncontrollable phenomena such as random buckling, overturning and the like are easy to occur; and the curved surface structure with wide top and narrow bottom eliminates the influence of randomness through geometric asymmetry, and the deformation mode is easy to control, stable and reliable.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. It is to be understood that variations or modifications in other variations may occur to those skilled in the art based on the foregoing description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A three-dimensional curved-wall mixed-phase regular quadrilateral chiral honeycomb is characterized in that: the chiral honeycomb is composed of a straight-wall honeycomb framework and a curved surface, the straight-wall honeycomb framework is composed of honeycomb cells, and the curved surface and the adjacent curved surface are mutually collided when impacted; the curved surface is spliced on the honeycomb cell element to form the three-dimensional curved wall mixed phase chiral honeycomb.
2. The chiral honeycomb of claim 1, wherein: the cross section of the honeycomb cell is in a regular quadrilateral shape.
3. The chiral honeycomb of claim 1, wherein: the adjacent curved surfaces of the curved surfaces in the positive direction of the honeycomb cell in which the curved surfaces are positioned have opposite initial phases, and the adjacent curved surfaces are intersected at the vertex of the honeycomb cell.
4. The chiral honeycomb of claim 1, wherein: the initial phase of the non-adjacent curved surfaces in the positive direction of the cellular cell in which they are located is the same or opposite.
5. The chiral honeycomb of claim 1, wherein: the cross sections of the curved surfaces at any horizontal height z are the same in shape and size.
6. The chiral honeycomb of claim 1, wherein: the curved surface is wide at the top and narrow at the bottom.
7. The chiral honeycomb of claim 6, wherein: the cross section shape of the curved surface at any horizontal height z is a half-period sine wave type curve with the frequency w, and the amplitude A (z) of the half-period sine wave type curve with the frequency w increases along with the increase of the horizontal position z.
8. The chiral honeycomb of claim 7, wherein: the side length a of the honeycomb cell satisfies a ═ pi/w.
9. The chiral honeycomb of claim 8, wherein: the chiral honeycomb of claim 6, wherein: the amplitude A (z) of the half-period sine wave type curve of the curved surface at any horizontal height z meets A (z) less than or equal to a/2.
10. The chiral honeycomb of any one of claims 1-9, wherein: the structure of each honeycomb cell of the chiral honeycomb is the same, and the wall thickness of each position is the same.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114542635A (en) * | 2022-03-09 | 2022-05-27 | 成都大学 | Internal-torsion honeycomb structure material and preparation method thereof |
| CN115405644A (en) * | 2022-08-24 | 2022-11-29 | 广州大学 | Negative Poisson's ratio structure based on extremely small curved surface and design method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327410A (en) * | 1999-08-30 | 2001-12-19 | 日本碍子株式会社 | Corrugated wall honeycomb structure and production method thereof |
| CN206475513U (en) * | 2016-11-25 | 2017-09-08 | 江南大学 | Combination rubber and plastic corrugated sheet and the RFID tag Turnover Box manufactured with the corrugated sheet |
| CN110406178A (en) * | 2019-06-03 | 2019-11-05 | 哈尔滨工程大学 | Double gradient energy-obsorbing and damping sandwich structures of a kind of metal/composite material multilayer and preparation method thereof |
| CN111376544A (en) * | 2020-03-27 | 2020-07-07 | 郑州机械研究所有限公司 | Aluminum honeycomb plate with high compression strength and manufacturing method thereof |
| CN212980107U (en) * | 2020-06-22 | 2021-04-16 | 重庆工程职业技术学院 | Automobile sound-insulation noise-reduction interior trimming panel |
| CN113294476A (en) * | 2021-06-25 | 2021-08-24 | 吉林大学 | Bionic composite board with sine corrugated structure and vibration isolation platform |
| CN113459507A (en) * | 2021-06-30 | 2021-10-01 | 浙江大学 | Inkfish bone-imitated impact-resistant structure and material increase preparation method thereof |
| CN214873141U (en) * | 2021-02-09 | 2021-11-26 | 广州大学 | Bionic honeycomb plate based on microcosmic woodpecker beak and 3D printer |
-
2021
- 2021-11-29 CN CN202111434472.4A patent/CN114060445B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327410A (en) * | 1999-08-30 | 2001-12-19 | 日本碍子株式会社 | Corrugated wall honeycomb structure and production method thereof |
| CN206475513U (en) * | 2016-11-25 | 2017-09-08 | 江南大学 | Combination rubber and plastic corrugated sheet and the RFID tag Turnover Box manufactured with the corrugated sheet |
| CN110406178A (en) * | 2019-06-03 | 2019-11-05 | 哈尔滨工程大学 | Double gradient energy-obsorbing and damping sandwich structures of a kind of metal/composite material multilayer and preparation method thereof |
| CN111376544A (en) * | 2020-03-27 | 2020-07-07 | 郑州机械研究所有限公司 | Aluminum honeycomb plate with high compression strength and manufacturing method thereof |
| CN212980107U (en) * | 2020-06-22 | 2021-04-16 | 重庆工程职业技术学院 | Automobile sound-insulation noise-reduction interior trimming panel |
| CN214873141U (en) * | 2021-02-09 | 2021-11-26 | 广州大学 | Bionic honeycomb plate based on microcosmic woodpecker beak and 3D printer |
| CN113294476A (en) * | 2021-06-25 | 2021-08-24 | 吉林大学 | Bionic composite board with sine corrugated structure and vibration isolation platform |
| CN113459507A (en) * | 2021-06-30 | 2021-10-01 | 浙江大学 | Inkfish bone-imitated impact-resistant structure and material increase preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114542635A (en) * | 2022-03-09 | 2022-05-27 | 成都大学 | Internal-torsion honeycomb structure material and preparation method thereof |
| CN114542635B (en) * | 2022-03-09 | 2023-09-08 | 成都大学 | Internal torsion honeycomb structure material and preparation method thereof |
| CN115405644A (en) * | 2022-08-24 | 2022-11-29 | 广州大学 | Negative Poisson's ratio structure based on extremely small curved surface and design method thereof |
| CN115405644B (en) * | 2022-08-24 | 2023-07-18 | 广州大学 | Negative poisson ratio structure based on minimum curved surface and design method thereof |
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| CN114060445B (en) | 2024-02-27 |
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