CN112081850B - Vibration-damping and energy-absorbing composite capsule - Google Patents
Vibration-damping and energy-absorbing composite capsule Download PDFInfo
- Publication number
- CN112081850B CN112081850B CN202011066039.5A CN202011066039A CN112081850B CN 112081850 B CN112081850 B CN 112081850B CN 202011066039 A CN202011066039 A CN 202011066039A CN 112081850 B CN112081850 B CN 112081850B
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- China
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- olive
- structural units
- pipe
- inner core
- aramid fiber
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- 239000002131 composite material Substances 0.000 title claims abstract description 53
- 239000002775 capsule Substances 0.000 title claims abstract description 22
- 238000013016 damping Methods 0.000 title claims abstract description 16
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 28
- 239000011229 interlayer Substances 0.000 claims abstract description 19
- 230000001681 protective effect Effects 0.000 claims description 18
- 229910000838 Al alloy Inorganic materials 0.000 claims description 15
- 239000010410 layer Substances 0.000 claims description 14
- 240000007817 Olea europaea Species 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 11
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000010146 3D printing Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- 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
- F16F7/003—One-shot shock absorbers
-
- 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
- F16F2224/0208—Alloys
-
- 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
- F16F2224/0241—Fibre-reinforced plastics [FRP]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a vibration-damping and energy-absorbing composite capsule, which comprises an inner core and a composite pipe, wherein the inner core is of an olive-like structure and is arranged in the composite pipe in an interference fit manner; the inner core comprises three groups of olive-like structural units, wherein each group of olive-like structural units comprises: the structure comprises two olive-like structure units, wherein each olive-like structure unit comprises two regular polygon end plates which are arranged at intervals along the length direction, a fixing rod is fixedly connected between each vertex angle of each two end plates, the fixing rod is of a structure with high middle and low two ends so that the olive-like structure units are in an olive-like structure, and one end plate of each olive-like structure unit is aligned and fixedly connected with a backrest; the three groups of olive-like structural units are fixedly stacked together in a shape of a product; the composite pipe is of a sandwich structure and comprises an outer protection pipe, an aramid fiber interlayer and an inner protection pipe, wherein the aramid fiber interlayer is fixedly clamped between the outer protection pipe and the inner protection pipe. It has the following advantages: the vibration damping and energy absorbing device has the effects of damping and energy absorbing, multiple utilization and small displacement.
Description
Technical Field
The invention relates to the technical field of protection, vibration reduction and energy absorption, in particular to a vibration reduction and energy absorption composite capsule.
Background
In recent years, the pursuit of higher levels has been a development direction of various civilian fields, and thus, the higher levels thereof have also brought about a series of safety problems. The equipment is irreversibly affected by high-speed impact or high-frequency vibration, so that the service life of machine parts is affected, and finally, the equipment is threatened to a certain extent. Therefore, the design of the composite structure with the efficient protection function has very important practical significance. For the current vibration reduction energy absorption structure, the disposable structural design for destroying the structural function is adopted, so that the input cost and the replacement efficiency of the structure are increased. Moreover, most structures have the effects of vibration reduction and energy absorption, and simultaneously tend to bring about larger transverse or longitudinal displacement, so that the shape and the size of the machine are influenced, and larger uncertain factors are brought.
Disclosure of Invention
The invention provides a vibration-damping and energy-absorbing composite capsule which overcomes the defects of vibration-damping and energy-absorbing components in the background art.
One of the adopted technical schemes for solving the technical problems is as follows: the vibration-damping and energy-absorbing composite capsule comprises an inner core with an olive-like structure and a composite pipe, wherein the inner core is arranged in the composite pipe in an interference fit manner; the inner core comprises three groups of olive-like structural units, wherein each group of olive-like structural units comprises: the structure comprises two olive-like structure units, wherein each olive-like structure unit comprises two regular polygon end plates which are arranged at intervals along the length direction, a fixing rod is fixedly connected between each vertex angle of each two end plates, the fixing rod is of a structure with high middle and low two ends so that the olive-like structure units are in an olive-like structure, and one end plate of each olive-like structure unit is aligned and fixedly connected with a backrest; the three groups of olive-like structural units are fixedly stacked together in a shape of a product; the composite pipe is of a sandwich structure and comprises an outer protection pipe, an aramid fiber interlayer and an inner protection pipe, wherein the aramid fiber interlayer is fixedly clamped between the outer protection pipe and the inner protection pipe.
In one embodiment: the three groups of olive-like structural units: the side length of the regular polygon of the end plate of the olive-shaped structural unit gradually increases from top to bottom.
In one embodiment: the inner core also comprises two fixed discs, and two upper connecting grooves and two lower connecting grooves are concavely formed in the peripheral wall of each fixed disc; two fixing rods at the lower sides of the two types of olive structural units at the upper sides are respectively and adaptively inserted into the two upper connecting grooves, and one fixing rod at the lower sides of the two types of olive structural units at the lower sides is respectively and adaptively inserted into the two lower connecting grooves; the two olive-like structural units of the three groups of olive-like structural units are respectively connected with two fixing plates, and the fixing plates and the fixing rods are bonded together.
In one embodiment: each olive-like building block is of equal length.
In one embodiment: the outer protective tube, the aramid fiber interlayer and the inner protective tube of the composite tube are in interference fit.
In one embodiment: the outer protective tube and the inner protective tube are all aluminum alloy layers, and the aluminum alloy layers are designed in an embossing-like staggered manner.
In one embodiment: the aramid fiber interlayer is interwoven in a shape like a Chinese character 'mi'.
The second technical scheme adopted for solving the technical problems is as follows: the vibration-damping and energy-absorbing composite capsule comprises an inner core with an olive-like structure and a composite pipe, wherein the inner core is arranged in the composite pipe in an interference fit manner; the inner core comprises three groups of olive-like structural units, wherein each group of olive-like structural units comprises: the structure comprises two olive-like structure units, wherein each olive-like structure unit comprises two regular polygon end plates which are arranged at intervals along the length direction, a fixing rod is fixedly connected between each vertex angle of each two end plates, the fixing rod is of a structure with high middle and low two ends so that the olive-like structure units are of an olive-like structure, and one end plate of each two olive-like structure units is shared; the three groups of olive-like structural units are fixedly stacked together in a shape of a product; the composite pipe is of a sandwich structure and comprises an outer protection pipe, an aramid fiber interlayer and an inner protection pipe, wherein the aramid fiber interlayer is fixedly clamped between the outer protection pipe and the inner protection pipe.
Compared with the background technology, the technical proposal has the following advantages: the vibration damping and energy absorbing device has the effects of damping and energy absorbing, multiple utilization and small displacement.
The multiple olive structure of the lightweight gradient type inner core improves the capability of the structure to be subjected to radial vibration and impact; the staggered embossing-like aluminum plate can bear radial vibration and impact at the periphery; the whole capsule structure is adopted, the composite board is surrounded by the outer layer of the inner core, so that the vibration reduction capability is enhanced, the deformation displacement is reduced, the recycling rate is improved, and the composite board is easy to use and install.
Drawings
The invention is further described below with reference to the drawings and the detailed description.
Fig. 1 is a schematic front view of an inner core of an embodiment.
Fig. 2 is a schematic left-hand view of the core of the embodiment.
Fig. 3 is a schematic cross-sectional structure of a composite pipe according to an embodiment.
Fig. 4-1 is a schematic structural view of a composite pipe according to an embodiment before being impacted.
Fig. 4-2 is a schematic structural view of the composite pipe of the embodiment after being impacted.
Fig. 5 is a schematic structural view of a composite capsule according to an embodiment.
Detailed Description
In order to achieve the excellent effects of vibration reduction and energy absorption and convenient production and manufacture, the invention provides a vibration reduction and energy absorption composite capsule, which comprises an inner core 2 with an olive-like structure and a composite tube 3, as shown in fig. 5, wherein the inner core 2 is arranged in the composite tube 3 in an interference fit manner.
As shown in fig. 1 and 2, the core 2 includes three groups of olive-like structural units 201, and each group of olive-like structural units 201: the structure comprises two olive-like structure units 201, wherein each olive-like structure unit 201 comprises two regular polygon end plates which are arranged in parallel at intervals along the length direction, a fixed rod is fixedly connected between each vertex angle of each two end plates, the fixed rod is in a structure with high middle and low two ends so as to be in an olive-like structure, and one end plate of each olive-like structure unit 201 is aligned and fixedly connected together, or one end plate is shared; each olive-like structural unit 201 is equal in length. The three groups of olive-like structural units 201 are fixedly stacked together in a shape, and the side lengths of regular polygons of the olive-like structural units 201 are gradually increased from top to bottom, and are arranged in a gradient manner, so that the energy absorption and vibration resistance are improved. The regular polygon in the figure is a hexagon, and octagons can be used as required. The inner core 2 further comprises two fixing plates 202, wherein two upper connecting grooves and two lower connecting grooves are concavely formed in the periphery of the fixing plates 202, two fixing rods on the lower sides of the olive-shaped structural units 201 on the upper sides are respectively inserted into the two upper connecting grooves in an adapting mode, and one fixing rod on the lower sides of the olive-shaped structural units 201 on the lower sides is respectively inserted into the two lower connecting grooves in an adapting mode; the two olive-like structural units 201 of the three groups of olive-like structural units 201 are respectively connected with two fixing plates 202, and the fixing plates 202 and the fixing rods are bonded through epoxy resin. The processing process can adopt a 3D printing basic unit, and is easy to manufacture; the working space in the bonding process is large, and the production is easy; the inner core 2 of the olive-like structure is in a hollow porous structure, so that the material is saved and the manufacturing cost is low.
As shown in fig. 3, the composite pipe 3 has a sandwich structure and includes an outer protective pipe 301, an aramid fiber interlayer 302 and an inner protective pipe 303, wherein the aramid fiber interlayer 302 is sandwiched between the outer protective pipe 301 and the inner protective pipe 303, and the three are in interference fit. The outer protective tube and the inner protective tube are all aluminum alloy layers, and the aluminum alloy layers are in embossing-like staggered design so as to form a plurality of concave circular arcs, so that the circular arcs are inwards concave in the impact bearing process to absorb energy brought by the impact. The aramid fiber interlayer adopts a'm' -shaped interactive weaving method, so that the buffer performance of the composite pipe can be enhanced, and the energy absorption effect of the composite pipe can be improved. The concave circular arcs of the outer protective tube 301 and the inner protective tube 303 are oppositely and alternately arranged, are mutually embedded, are inserted into the aramid fiber layers, and are formed by cross knitting in a'm' -shape, so that the composite tube meets the requirement of high strength, and plays the excellent elastoplasticity of the aramid fiber and circular arc structures to the greatest extent. Wherein: the structural elasticity that aramid fiber woven is high, and the damping is big, and the circular arc staggered design of aluminum alloy can promote the elastoplasticity of composite pipe, and the two combines can effectively absorb vibration energy, plays excellent shock attenuation effect. The stress F of the composite pipe 3 is shown in the diagrams of fig. 4-1 and 4-2, and the arc-shaped protective pipe is deformed at the arc after being impacted and mutually extruded, so that the energy caused by the impact is absorbed, the structural size of the inner periphery and the outer periphery of the capsule is not influenced basically, and the vibration reduction, protection and energy absorption effects can be improved.
The assembly and combination form of the inner core 2 and the composite pipe 3 is shown in fig. 5, and interference fit is adopted between the inner core 2 and the composite pipe, so that the vibration amplitude and the energy of the vibration can be well controlled and absorbed. The protection tube and the aramid fiber are all of materials with small density, the inner core is of a porous hollow structure, the density of the capsule is further reduced, and light weight is realized.
The compound capsule of the specific embodiment has the following beneficial technical effects:
1. good impact resistance and high protective performance.
The aluminum alloy and the aramid fiber used in the composite pipe are high-strength materials, and the combination of the metal material and the fiber material improves the tensile strength of the protection plate, so that the protection plate generates larger elastoplasticity when being stressed or impacted, and is not easy to break. The aluminum alloy layer is in embossing-like staggered design, so that the aluminum alloy layer is recessed inwards in an arc manner in the impact bearing process, and energy brought by the impact is absorbed. Secondly, the aramid fiber layer adopts a'm' -shaped interactive weaving method, so that the buffer performance of the composite pipe is enhanced, and the energy absorption effect of the composite pipe is improved. The inner core in the capsule can generate tiny compression when being impacted, absorbs energy, is surrounded by the external composite pipe, does not affect the structural dimensions of other parts, can bear higher load through gradient size arrangement, and improves the deformation stability of impact. 2. Excellent vibration damping effect and gradient arrangement. The structural elasticity that aramid fiber woven is high, and the damping is big, and the circular arc staggered design of aluminum alloy has further promoted the elastoplasticity of composite pipe, compressive resistance, and the two combines can effectively absorb vibration energy, plays excellent shock attenuation effect. The olive-shaped inner core in the capsule is made of elastic materials, can generate reciprocating periodic compression when bearing alternating load, absorb energy, does not cause vibration on the other side of the load, is surrounded by an external composite pipe, does not affect the structural dimensions of other parts, improves the deformation stability of impact and can be repeatedly used; the shape radius of each olive-like structure is different in the combination process, gradually increases from top to bottom, and is arranged in a gradient manner, so that the energy absorption and vibration resistance are improved. 3. The structure is light, and the production and the manufacturing are easy. The protection tube composed of aluminum alloy and aramid fiber belongs to a material with low density, and the inner core belongs to a porous hollow structure, so that the density of the capsule is further reduced, and the weight reduction is realized. The porous structure of the inner core has the advantages of small material consumption, large hollowed-out range, olive-like octagonal basic units, and large bonding range, and the epoxy resin is used for bonding the units through the short straight prisms; the clamp only needs a 3D printing basic unit, and is easy to manufacture; the bonding process has large working space and is easy to produce. 4. Low cost, long service life and repeated use. The aluminum alloy is embedded in the composite pipe in a staggered manner, and the aramid fiber is clamped, so that the structural utilization rate is effectively improved, the capsule inner core is of a hollow porous structure, the materials are saved, and the manufacturing cost is low. The olive inner core of the capsule and the composite tube with staggered layers absorb energy brought by vibration and impact during elastic deformation, the elastic deformation range is large, and the capsule can quickly and accurately recover to an initial position when no load is applied or the load is small, and the capsule has strong recovery capability, high reuse rate and long service life.
The foregoing description is only illustrative of the preferred embodiments of the present invention, and therefore should not be taken as limiting the scope of the invention, for all changes and modifications that come within the meaning and range of equivalency of the claims and specification are therefore intended to be embraced therein.
Claims (2)
1. The utility model provides a compound capsule of damping energy-absorbing which characterized in that: the composite pipe comprises an inner core and a composite pipe, wherein the inner core is in an olive-like structure and is arranged in the composite pipe in an interference fit manner; the inner core belongs to a porous hollow structure and comprises three groups of olive-like structural units, wherein each group of olive-like structural units comprises: the structure comprises two olive-like structure units, wherein each olive-like structure unit comprises two regular polygon end plates which are arranged at intervals along the length direction, a fixing rod is fixedly connected between each vertex angle of each two end plates, the fixing rod is of a structure with high middle and low two ends so that the olive-like structure units are in an olive-like structure, and one end plate of each olive-like structure unit is aligned and fixedly connected with a backrest; the three groups of olive-like structural units are fixedly stacked together in a shape of a product; the composite pipe is of a sandwich structure and comprises an outer protection pipe, an aramid fiber interlayer and an inner protection pipe, wherein the aramid fiber interlayer is fixedly clamped between the outer protection pipe and the inner protection pipe; the three groups of olive-like structural units: the side length of the regular polygon of the end plate of the olive-shaped structural unit gradually increases from top to bottom; the inner core also comprises two fixed discs, and two upper connecting grooves and two lower connecting grooves are concavely formed in the peripheral wall of each fixed disc; two fixing rods at the lower sides of the two types of olive structural units at the upper sides are respectively and adaptively inserted into the two upper connecting grooves, and one fixing rod at the lower sides of the two types of olive structural units at the lower sides is respectively and adaptively inserted into the two lower connecting grooves; the two olive-like structural units of the three groups of olive-like structural units are respectively connected with two fixed discs, and the fixed discs and the fixed rods are bonded together; the length of each olive-like structural unit is equal; the outer protective tube, the aramid fiber interlayer and the inner protective tube of the composite tube are in interference fit; the outer protection tube and the inner protection tube are all aluminum alloy layers, the aluminum alloy layers are designed in an embossing-like staggered manner to form a plurality of concave circular arcs, and the concave circular arcs of the outer protection tube and the inner protection tube are oppositely staggered and embedded; the aramid fiber interlayer is interwoven in a shape like a Chinese character 'mi'.
2. The utility model provides a compound capsule of damping energy-absorbing which characterized in that: the composite pipe comprises an inner core and a composite pipe, wherein the inner core is in an olive-like structure and is arranged in the composite pipe in an interference fit manner; the inner core comprises three groups of olive-like structural units, wherein each group of olive-like structural units comprises: the structure comprises two olive-like structure units, wherein each olive-like structure unit comprises two regular polygon end plates which are arranged at intervals along the length direction, a fixing rod is fixedly connected between each vertex angle of each two end plates, the fixing rod is of a structure with high middle and low two ends so that the olive-like structure units are of an olive-like structure, and one end plate of each two olive-like structure units is shared; the three groups of olive-like structural units are fixedly stacked together in a shape of a product; the composite pipe is of a sandwich structure and comprises an outer protection pipe, an aramid fiber interlayer and an inner protection pipe, wherein the aramid fiber interlayer is fixedly clamped between the outer protection pipe and the inner protection pipe; the three groups of olive-like structural units: the side length of the regular polygon of the end plate of the olive-shaped structural unit gradually increases from top to bottom; the inner core also comprises two fixed discs, and two upper connecting grooves and two lower connecting grooves are concavely formed in the peripheral wall of each fixed disc; two fixing rods at the lower sides of the two types of olive structural units at the upper sides are respectively and adaptively inserted into the two upper connecting grooves, and one fixing rod at the lower sides of the two types of olive structural units at the lower sides is respectively and adaptively inserted into the two lower connecting grooves; the two olive-like structural units of the three groups of olive-like structural units are respectively connected with two fixed discs, and the fixed discs and the fixed rods are bonded together; the length of each olive-like structural unit is equal; the outer protective tube, the aramid fiber interlayer and the inner protective tube of the composite tube are in interference fit; the outer protection tube and the inner protection tube are all aluminum alloy layers, the aluminum alloy layers are designed in an embossing-like staggered manner to form a plurality of concave circular arcs, and the concave circular arcs of the outer protection tube and the inner protection tube are oppositely staggered and embedded; the aramid fiber interlayer is interwoven in a shape like a Chinese character 'mi'.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011066039.5A CN112081850B (en) | 2020-09-30 | 2020-09-30 | Vibration-damping and energy-absorbing composite capsule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011066039.5A CN112081850B (en) | 2020-09-30 | 2020-09-30 | Vibration-damping and energy-absorbing composite capsule |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112081850A CN112081850A (en) | 2020-12-15 |
| CN112081850B true CN112081850B (en) | 2024-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011066039.5A Active CN112081850B (en) | 2020-09-30 | 2020-09-30 | Vibration-damping and energy-absorbing composite capsule |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01241438A (en) * | 1988-03-23 | 1989-09-26 | Sumitomo Bakelite Co Ltd | Impact resistance panel |
| CN102562936A (en) * | 2010-12-24 | 2012-07-11 | 唐山轨道客车有限责任公司 | Damping method and damper |
| CN109466486A (en) * | 2018-11-28 | 2019-03-15 | 华侨大学 | A kind of sandwich level energy absorption device |
| CN110576654A (en) * | 2019-09-04 | 2019-12-17 | 华侨大学 | Be applied to sandwich structure on car collision energy-absorbing box |
| CN212455305U (en) * | 2020-09-30 | 2021-02-02 | 华侨大学 | Vibration-damping energy-absorbing composite capsule |
-
2020
- 2020-09-30 CN CN202011066039.5A patent/CN112081850B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01241438A (en) * | 1988-03-23 | 1989-09-26 | Sumitomo Bakelite Co Ltd | Impact resistance panel |
| CN102562936A (en) * | 2010-12-24 | 2012-07-11 | 唐山轨道客车有限责任公司 | Damping method and damper |
| CN109466486A (en) * | 2018-11-28 | 2019-03-15 | 华侨大学 | A kind of sandwich level energy absorption device |
| CN110576654A (en) * | 2019-09-04 | 2019-12-17 | 华侨大学 | Be applied to sandwich structure on car collision energy-absorbing box |
| CN212455305U (en) * | 2020-09-30 | 2021-02-02 | 华侨大学 | Vibration-damping energy-absorbing composite capsule |
Non-Patent Citations (1)
| Title |
|---|
| 环形梯度多胞结构的多工况耐撞性研究;张勇等;中国机械工程;20180228;第29卷(第4期);第485-492页 * |
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| CN112081850A (en) | 2020-12-15 |
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