CN114770974A - High-fatigue-resistance conductivity controllable composite material vibration isolator and manufacturing method thereof - Google Patents
High-fatigue-resistance conductivity controllable composite material vibration isolator and manufacturing method thereof Download PDFInfo
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- CN114770974A CN114770974A CN202210306464.XA CN202210306464A CN114770974A CN 114770974 A CN114770974 A CN 114770974A CN 202210306464 A CN202210306464 A CN 202210306464A CN 114770974 A CN114770974 A CN 114770974A
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- composite material
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- conductivity
- fatigue resistance
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- 239000002131 composite material Substances 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000000835 fiber Substances 0.000 claims abstract description 35
- 229920005989 resin Polymers 0.000 claims description 18
- 239000011347 resin Substances 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 3
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 3
- 229920002396 Polyurea Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- -1 phenolic aldehyde Chemical class 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229920001225 polyester resin Polymers 0.000 claims description 3
- 239000004645 polyester resin Substances 0.000 claims description 3
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 3
- 229920005992 thermoplastic resin Polymers 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 3
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 229920002748 Basalt fiber Polymers 0.000 claims description 2
- 229920000271 Kevlar® Polymers 0.000 claims description 2
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 2
- 229920006231 aramid fiber Polymers 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 239000004761 kevlar Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- 238000009966 trimming Methods 0.000 claims description 2
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 2
- 238000013016 damping Methods 0.000 abstract description 7
- 238000010008 shearing Methods 0.000 abstract description 4
- 238000002955 isolation Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 239000011231 conductive filler Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
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- 238000007493 shaping process Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000009755 vacuum infusion Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/342—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
- B29C70/22—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Laminated Bodies (AREA)
- Vibration Prevention Devices (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a high fatigue resistance conductivity controllable composite material vibration isolator which is of a spiral structure and is characterized in that: the cross-section includes an inner unidirectional continuous fiber and an outer two-dimensional braided sleeve. The invention also discloses a manufacturing method of the controllable composite material vibration isolator with high fatigue resistance and conductivity. The vibration isolator has the characteristics of high damping, high fatigue resistance, light weight, high strength, large rigidity, long service life, controllable conductivity and excellent shearing resistance.
Description
Technical Field
The invention relates to a vibration isolator and a manufacturing method thereof, in particular to a high-fatigue-resistance conductivity controllable composite material vibration isolator and a manufacturing method thereof, and belongs to the technical field of sound stealth and conductive functional materials.
Background
The traditional passive vibration isolation technology has obvious high-frequency vibration reduction effect, but the low-frequency vibration reduction effect is not ideal, and the high requirement on the vibration reduction performance cannot be met. Meanwhile, the traditional rope vibration isolator is made of steel, so that the electric conductivity is high and cannot be adjusted, and the traditional rope vibration isolator is not suitable for equipment needing insulation.
Aiming at a ship, in order to reduce air radiation noise and underwater radiation noise in a cabin so as to achieve the purpose of a quiet ship, on one hand, a novel low-noise main engine and a low-noise auxiliary engine device are required to be developed; on one hand, the installation mode of the whole power system is mainly researched and analyzed, and measures are taken on a vibration noise transmission path, wherein one measure is that the main vibration source in the naval vessel is subjected to vibration isolation by adopting an elastic installation method.
Along with the new equipment on the ship, the requirements on the insulation and the electrical performance of the vibration isolator are provided. In the actual engineering, measures such as vibration isolation, vibration absorption, damping (including damping material utilization), vibration reduction and the like are widely adopted to control the transmission of vibration, and the requirements of sound stealth, mechanics and electrical performance cannot be met simultaneously.
In general, the prior art suffers from several problems including: the dynamic displacement dry friction damping of the rope vibration isolator is small, and the vibration isolation effect during resonance is poor; the rope vibration isolator is made of a single material, is only made of metal, and has high density and non-designable conductivity; the traditional composite material vibration isolator has poor shearing resistance.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a high-fatigue-resistance conductivity controllable composite material vibration isolator and a manufacturing method thereof. The invention takes vibration reduction and noise reduction as main practical backgrounds, combines the respective advantages of the traditional vibration isolator and the novel vibration isolator, and mainly utilizes the advantages of high damping, high suppression and wide low-frequency vibration isolation area of the composite material, and the advantages of light weight, high fatigue resistance, shear resistance, high specific strength and specific modulus, corrosion resistance, easy processing and forming and the like, so as to further improve the sound stealth performance and the environmental adaptability of weaponry (naval vessels, particularly submarines). Meanwhile, the multifunctional vibration isolator is realized by utilizing the design characteristics of the composite material resin filler, the selectable conductive filler and the non-conductive filler, and the selectable conductive fiber and the non-conductive fiber, so that the requirement of controllable conductivity of the vibration isolator is realized.
The invention is realized in such a way that:
a vibration isolator made of controllable composite material and having high fatigue resistance and conductivity is a spiral structure, and the cross section of the vibration isolator comprises an inner one-way continuous fiber and an outer two-dimensional braided sleeve.
The further scheme is as follows:
the unidirectional continuous fiber and the two-dimensional braided sleeve are made of one or more of glass fiber, Kevlar fiber, carbon fiber, basalt fiber, ultra-high molecular weight polyethylene, aramid fiber, silicon carbide fiber and metal fiber.
The further scheme is as follows:
the unidirectional continuous fibers are at least one layer.
The further scheme is as follows:
the two-dimensional braided sleeve is at least one layer.
The invention also provides a manufacturing method of the controllable composite material vibration isolator with high fatigue resistance and conductivity, which comprises the following steps:
laying up at least one unidirectional fibre layer in layers;
sheathing at least one layer of the two-dimensional braided sleeve on the at least one unidirectional fiber layer to prepare a composite material preformed body;
impregnating the preform with a resin using a prepreg or typical composite forming process, such as vacuum infusion and hand lay-up;
covering the outer surface of the preformed body with a heat shrinkable sleeve, winding the heat shrinkable sleeve embedded with the preformed body around a forming die or placing the heat shrinkable sleeve in the forming die, and discharging redundant resin after heating to increase the fiber content;
and according to the used resin, adopting a corresponding temperature rise program and a corresponding curing temperature, and assisting the processes of demoulding, removing the sleeve and shaping to obtain the composite material vibration isolator.
The further scheme is as follows:
the resin is a thermosetting or thermoplastic resin.
The further scheme is as follows:
the resin is specifically epoxy resin, polyester resin, vinyl resin, polycarbonate, polyamide, polyurea, polyphenylene sulfide or phenolic aldehyde.
The invention has at least the following outstanding technical effects:
the density of the non-metallic material used by the vibration isolator is far less than the weight of the steel material, and the weight of the non-metallic material is about 1/4 of a metal vibration isolator with the same effect under the condition of the same mechanical strength, thereby meeting the requirements of partial equipment sensitive to weight. Because the two-dimensional braided sleeve is adopted as the outermost fiber reinforced layer, the shear resistance of the braided sleeve in all directions is integrally inherited, and the fatigue resistance of the vibration isolator is improved. The composite material is used as the vibration isolator, so that the vibration isolator has high suppression, wide vibration isolation frequency domain and larger bearing capacity, and simultaneously can effectively improve the resonance vibration isolation efficiency. The conductive coating has the characteristic of adjustable conductivity, meets the technical requirements from an insulator to a conductor, and is suitable for the requirements of special equipment. In conclusion, after the basic principle of the vibration isolation technology is researched and the advantages and the disadvantages of some common vibration isolation elements are analyzed, the composite material vibration isolator which is high in damping, high in fatigue resistance, light in weight, controllable in conductivity and excellent in shearing resistance is designed.
Drawings
FIG. 1 is a schematic diagram of the molding and parts of a high fatigue resistance and conductivity controllable composite material vibration isolator
FIG. 2 schematic representation of fiber orientation of two-dimensional braided sleeve
FIG. 3 is a schematic diagram of the cross section of a vibration isolator made of controllable composite material with high fatigue resistance and high conductivity
FIG. 4 is a schematic cross-sectional view of a part of a vibration isolator made of a controllable composite material with high fatigue resistance and conductivity
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
Example 1
The embodiment provides a manufacturing method of a high-fatigue-resistance conductivity controllable composite material vibration isolator, which comprises the following steps:
laying up at least one unidirectional fibre layer in layers;
sheathing the at least one unidirectional fiber layer with at least one two-dimensional braided sleeve (as shown in figure 2) to form a composite material preform;
impregnating the preform with a resin;
sheathing the outer surface of the preformed body with a heat shrinkable sleeve (as shown in figure 3), winding the heat shrinkable sleeve embedded with the preformed body into a forming die or placing the heat shrinkable sleeve in the forming die, and discharging redundant resin after heating to increase the fiber content;
and heating, curing, demolding, removing the sleeve and trimming to obtain the composite material vibration isolator.
The resin is thermosetting or thermoplastic resin, and specifically can be epoxy resin, polyester resin, vinyl resin, polycarbonate, polyamide, polyurea, polyphenylene sulfide or phenolic aldehyde.
Example 2
The embodiment provides a high-fatigue-resistance conductivity controllable composite material vibration isolator which is of a spiral structure (shown in figure 1), the cross section of the vibration isolator is shown in figure 4, and the vibration isolator comprises inner unidirectional continuous fibers and outer two-dimensional braided sleeves.
The section size and the spiral distance can be designed according to actual equipment and installation conditions, unidirectional continuous fibers are arranged in the spiral distance, and a fiber two-dimensional woven sleeve is arranged on the outer surface of the spiral distance.
The electrical property of the raw material of the vibration isolator made of the composite material with controllable high fatigue resistance and conductivity is changed. The conductivity of the controllable composite material vibration isolator with high fatigue resistance and conductivity can be improved by adopting the conductive carbon fibers, the metal fibers and the conductive filler. The insulating resin, the fiber and the filler are adopted, so that the insulating high-fatigue-resistance controllable composite material vibration isolator can be prepared.
The continuous, angle-adjustable and shapeable characteristics of the fibers in the fiber two-dimensional woven sleeve on the outer surface of the high fatigue-resistant conductivity controllable composite material vibration isolator are shown in figure 2, so that the shearing resistance, the mechanical strength and the fatigue resistance of the composite material vibration isolator are improved.
The forming construction drawing of the high fatigue resistance electric conductivity controllable composite material vibration isolator is shown in figure 3, and the vibration isolator is respectively provided with unidirectional fibers, a two-dimensional woven sleeve, demoulding cloth and a heat shrinkage sleeve from inside to outside. The forming process includes soaking the preformed body, covering the demolding cloth with the preformed body, sleeving the heat shrinkable sleeve onto the outer surface of the preformed body, heating the composite material to cure, shrinking the heat shrinkable sleeve, exhausting excessive resin to the outside of the forming system to increase fiber content and raise the mechanical performance of the vibration isolator.
The vibration isolator made of the controllable composite material with high fatigue resistance and conductivity, provided by the embodiment, has the damping coefficient of more than 2.0 percent and the density of less than 2.1g/cm3Tensile and flexural strengths greater than 200MPa, controlled conductivity, and a variation from insulator to conductor of about 10-8S/M-10S/M, the shear modulus is about 7G Pa, and the shear strength is far higher than that of the conventional rubber vibration isolator which is about 17M Pa.
Although the invention has been described herein with reference to the illustrated embodiments thereof, which are intended to be the only preferred embodiments of the invention, it is not intended that the invention be limited thereto, since many other modifications and embodiments will be apparent to those skilled in the art and will be within the spirit and scope of the principles of this disclosure.
Claims (7)
1. The utility model provides a controllable combined material isolator of high fatigue resistance conductivity, is heliciform structure, its characterized in that: the cross-section includes an inner unidirectional continuous fiber and an outer two-dimensional braided sleeve.
2. The vibration isolator made of the controllable composite material with high fatigue resistance and conductivity as claimed in claim 1, wherein:
the unidirectional continuous fiber and the two-dimensional braided sleeve are made of one or more of glass fiber, Kevlar fiber, carbon fiber, basalt fiber, ultra-high molecular weight polyethylene, aramid fiber, silicon carbide fiber and metal fiber.
3. The vibration isolator made of the controllable composite material with high fatigue resistance and conductivity as claimed in claim 1 or 2, is characterized in that:
the unidirectional continuous fibers are at least one layer.
4. The vibration isolator made of the controllable composite material with high fatigue resistance and conductivity according to claim 1 or 2, is characterized in that:
the two-dimensional braided sleeve is at least one layer.
5. A manufacturing method of a controllable composite material vibration isolator with high fatigue resistance and conductivity is characterized by comprising the following steps:
laying at least one unidirectional fiber layer in a laminated manner;
sheathing at least one layer of the two-dimensional braided sleeve on the at least one unidirectional fiber layer to prepare a composite material preformed body;
impregnating the preform with a resin;
covering the outer surface of the preformed body with a heat shrinkable sleeve, winding the heat shrinkable sleeve embedded with the preformed body around a forming die or placing the heat shrinkable sleeve in the forming die, and discharging redundant resin after heating to increase the fiber content;
and heating, curing, demolding, removing the sleeve and trimming to obtain the composite material vibration isolator.
6. The manufacturing method of the vibration isolator made of the controllable composite material with high fatigue resistance and conductivity according to claim 5 is characterized in that:
the resin is a thermosetting or thermoplastic resin.
7. The method for manufacturing the vibration isolator made of the controllable composite material with high fatigue resistance and conductivity as claimed in claim 6, wherein the method comprises the following steps:
the resin is specifically epoxy resin, polyester resin, vinyl resin, polycarbonate, polyamide, polyurea, polyphenylene sulfide or phenolic aldehyde.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210306464.XA CN114770974A (en) | 2022-03-25 | 2022-03-25 | High-fatigue-resistance conductivity controllable composite material vibration isolator and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210306464.XA CN114770974A (en) | 2022-03-25 | 2022-03-25 | High-fatigue-resistance conductivity controllable composite material vibration isolator and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN114770974A true CN114770974A (en) | 2022-07-22 |
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| CN202210306464.XA Pending CN114770974A (en) | 2022-03-25 | 2022-03-25 | High-fatigue-resistance conductivity controllable composite material vibration isolator and manufacturing method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017125600A (en) * | 2016-01-15 | 2017-07-20 | 亀幸 清家 | Spring structure |
| US20180058496A1 (en) * | 2016-08-31 | 2018-03-01 | Hyundai Motor Company | Hybrid propeller shaft for vehicle |
| CN108099317A (en) * | 2017-12-15 | 2018-06-01 | 武汉理工大学 | A kind of high endurance composite material automobile leaf spring and preparation method thereof |
| US20190366681A1 (en) * | 2017-04-18 | 2019-12-05 | Mitsubishi Chemical Corporation | Fiber-reinforced composite material molded article and method for producing same |
-
2022
- 2022-03-25 CN CN202210306464.XA patent/CN114770974A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017125600A (en) * | 2016-01-15 | 2017-07-20 | 亀幸 清家 | Spring structure |
| US20180058496A1 (en) * | 2016-08-31 | 2018-03-01 | Hyundai Motor Company | Hybrid propeller shaft for vehicle |
| US20190366681A1 (en) * | 2017-04-18 | 2019-12-05 | Mitsubishi Chemical Corporation | Fiber-reinforced composite material molded article and method for producing same |
| CN108099317A (en) * | 2017-12-15 | 2018-06-01 | 武汉理工大学 | A kind of high endurance composite material automobile leaf spring and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 周威廉博士: "在产品设计中降低成本", 30 June 1984, 机械工业出版社, pages: 134 - 135 * |
| 张丽娇等: "复合材料减振降噪研究进展", 新材料产业, pages 196 - 118 * |
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