CN101060201A - Extensible mirror body with shape memory material lining substrate - Google Patents
Extensible mirror body with shape memory material lining substrate Download PDFInfo
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- CN101060201A CN101060201A CN 200710072084 CN200710072084A CN101060201A CN 101060201 A CN101060201 A CN 101060201A CN 200710072084 CN200710072084 CN 200710072084 CN 200710072084 A CN200710072084 A CN 200710072084A CN 101060201 A CN101060201 A CN 101060201A
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Abstract
The related extensible reflection mirror for shape-memory material substrate used in space field comprises: a parabolic composite material substrate (1), and a metal layer (2) plated on inner surface of substrate (1). This invention has well ratio between extended and shrank volume, introduces low reflection area density, reduces system structure and control loop, improves system reliability, and eliminates the blasting supply for trigger.
Description
Technical field
The present invention relates to a kind of extensible mirror body.
Background technology
Because the space of carrying space aircraft is limited, thus space flight be restricted with the volume of speculum, thereby the deployable reflector body of space flight must have lightweight, launch volume and retraction volume than greatly, performances such as reliability height.Along with the fast development of space technology, satellite communication, radio astronomy and Radar Technology, the demand of the deployable speculum of space flight will increase greatly.
Existing space flight mostly is non-expansion-type reflection mirror with speculum, and this speculum is assembly moulding on ground, when aerospace craft can discharge this speculum and come into operation after rail work.This kind speculum is not because of having the expansion process in the space space, its reliability height.Bore is little but disadvantage is reflector body, and transinformation is limited.Along with developing rapidly of space technology, non-expansion-type reflection mirror more and more demonstrates its limitation.
The deployable reflector body of the collapsible polymer matrix composites of existing back springing type stores strain energy in folding process, then in contraction process, must there be outside locking device to prevent the release of strain energy with fixed structure, and in the expansion process, must have the device that is similar to damper to come the expansion of control system, otherwise expansion process can produce bigger impact.The deployable reflector body of the existing in addition collapsible polymer matrix composites of back springing type its material and rigidity of structure in folding and expansion process can not change, do not produce material damage in order to produce bigger expansion volume with the retraction volume ratio, its rigidity is inevitable lower.Therefore, in system's transportation and emission process, the elastic vibration distortion of structure is bigger, this can produce the particularly high-precision mirror surface of structure and destroy, in addition in the structure expansion process, because the damping of structure is little, its vibration attenuation is slow, can produce bigger vibration interference to spacecraft, when spacecraft is adjusted attitude, speculum also will produce bigger vibration simultaneously.In addition, polymer matrix composites, the static or quasi-static mechanics load-carrying properties such as intensity, rigidity that it mainly considers material are mainly used in structural material, and its surface accuracy is relatively poor.
Summary of the invention
Can not reach the instructions for use of big expansion volume with retraction volume ratio in order to solve existing space flight speculum, and bore is little, the low and big problem of quality of precision, and a kind of extensible mirror body of shape memory material lining substrate is proposed.
The present invention is made up of composite material of shape memory lining substrate 1 and metal level 2; Composite material of shape memory lining substrate 1 be shaped as paraboloidal, the plating inner surface of composite material of shape memory lining substrate 1 has metal level 2.The composite material of shape memory of composite material of shape memory lining substrate 1 is made up of shape memory polymer material, wild phase material and resistance material, and perhaps composite material of shape memory is made up of shape memory polymer material, wild phase material or resistance material; The volume content of each component material is: 5～98 parts of shape memory polymer materials, 2～95 parts of wild phase materials, 0～100 part of resistance heating material.Shape memory polymer material is that polystyrene shape-memory polymer, epoxy resin shape-memory polymer, cyanate are shape-memory polymer, shape memory polyurethane, shape memory polyester, shape memory Styrene-Butadiene, shape memory using trans-polyisoprene or shape memory polynorbornene.The wild phase material is one or more the mixing in graphite fibre, carbon fiber, glass fibre, Kevlar fiber, boron fibre, silicon carbide fibre, carbon black, carbon nano-tube, nickel powder, graphite powder, whisker, silicon carbide powder, copper powder, silver powder and the aluminium powder.Resistance material is one or more the mixing in nichrome resistance material, nickel chromium iron resistance material, siderochrome resistance material, nickel chromium triangle ferro-aluminum resistance material, siderochrome aluminium resistance material, molybdenum resistance material, pure nickel resistance material, copper-manganese resistance material, constantan resistance material, copper nickel resistance material, iron resistance material, copper resistance material, the electric resistance of stainless material.
The present invention has following characteristics:
1. shape-memory material is that the deployable speculum of lining substrate has higher expansion volume and retraction volume than, lower reflecting surface surface density.The shape memory effect of shape-memory material uniqueness makes shape memory polymer composite material have higher flexural deformation rate, shape memory polymer composite material is followed the various theories of existing classical composite material at normal temperatures, shape memory polymer composite material is in glass transition, shape memory polymer composite material is softening rapidly, shape memory polymer composite material rigidity reduces rapidly, therefore, shape memory polymer composite material has higher expansion volume and retraction volume when can repeatedly repeat ability folding and expansion, and guarantees that material does not produce the stability of destroying and guaranteeing shape.
2. use composite material of shape memory to drive and the rigid support device as launching simultaneously.Composite material of shape memory relies on the hot critical self-excitation (glass transition) of self to realize the startup of expansion and the whole process of motion, output expansion power can satisfy system requirements, the expansion motion process is mild, simultaneously in speculum is organized work process, structure is played the rigid support effect, keep system works.In addition, the expansion mirror structure is comparatively simple, and system configuration and controlling unit are few, and the reliability height of system works shortens the production cycle.
3. need not that priming system launches trigger equipment, impact is little, reliability is high.Composite material of shape memory below critical temperature has the material character of conventional resin composite materials, as higher modulus of elasticity and bending modulus (tens to hundreds of GPa magnitude), this can constitute strong constraint to speculum, need not the priming system device and come locking system before emission and in the emission process.Not to rely on the blast priming system to trigger to launch motion when system launches, but reach critical temperature when above when composite material of shape memory, rely on the big character of material self damping to come to drive slowly, stably whole system realization expansion.Do not trigger this process of priming system because the deployable speculum of the shape memory surface of solids explodes, aerospace craft also can not be subjected to greater impact.In addition, because priming system unreliable, need not the extensible mirror body system of the shape memory material lining substrate of priming system, the system reliability of itself also is improved.
Development along with intellectual material and structure technology, especially the initiatively appearance and the fast development of deformable material such as shape-memory polymer and composite material thereof, make the manufacturing heavy caliber, the intelligent deployable reflector body of high accuracy and lightweight becomes possibility, and this will promote the development of aerospace craft deployable structure greatly.
Description of drawings
Fig. 1 is a structural representation of the present invention; Fig. 2 is the structural representation after the present invention folds; Fig. 3 is the structural representation of embodiment ten; Fig. 4 is a place partial enlarged drawing of Fig. 3.
Embodiment
Embodiment one: in conjunction with Fig. 1, Fig. 2 present embodiment is described, present embodiment is made up of composite material of shape memory lining substrate 1 and metal level 2; Composite material of shape memory lining substrate 1 be shaped as paraboloidal, the plating inner surface of composite material of shape memory lining substrate 1 has metal level 2.Metal level 2 provides high-precision reflecting surface, has improved the surface smoothness of deployable reflector body, reduces its surface scattering rate.Composite material of shape memory lining substrate 1 plays the double action of structural bearing and Drive Structure expansion.
Embodiment two: in conjunction with Fig. 1, Fig. 2 present embodiment is described, the difference of present embodiment and embodiment one is that the thickness of metal level 2 is 0.001mm～1mm, and the material of metal level is the nickel metal.Other composition is identical with embodiment one with connected mode.
Embodiment three: present embodiment is described in conjunction with Fig. 1, Fig. 2, the difference of present embodiment and embodiment one is that the thickness of composite material of shape memory lining substrate 1 is 0.1mm～80mm, and the paraboloidal focal length of composite material of shape memory lining substrate 1 and the paraboloidal relative aperture of composite material of shape memory lining substrate 1 are 0.025～2.5; Other composition is identical with embodiment one with connected mode.
Embodiment four: the difference of present embodiment and embodiment one is that the composite material of shape memory of composite material of shape memory lining substrate 1 is made up of shape memory polymer material, wild phase material and resistance material; The volume content of each component material is: 5～98 parts of shape memory polymer materials, 2～95 parts of wild phase materials, resistance heating material＞0～100 part; Other composition is identical with embodiment one with connected mode.
Embodiment five: the difference of present embodiment and embodiment one is that the composite material of shape memory of composite material of shape memory lining substrate 1 is made up of shape memory polymer material, wild phase material or resistance material; The volume content of each component material is: 5～98 parts of shape memory polymer materials, 2～95 parts of wild phase materials, 0～100 part of resistance heating material; Other composition is identical with embodiment one with connected mode.
Embodiment six: present embodiment and embodiment four or fives' difference is that the volume content of each component material of the composite material of shape memory of composite material of shape memory lining substrate 1 is: 30～80 parts of shape memory polymer materials, 20～70 parts of wild phase materials, 0～20 part of resistance heating material; Other composition is identical with embodiment four or five with connected mode.
Embodiment seven: present embodiment and embodiment four or fives' difference is that the volume content of each component material of the composite material of shape memory of composite material of shape memory lining substrate 1 is: 40～60 parts of shape memory polymer materials, 40～60 parts of wild phase materials, 0～10 part of resistance heating material; Other composition is identical with embodiment four or five with connected mode.
Embodiment eight: present embodiment and embodiment four or fives' difference is that the shape memory polymer material of composite material of shape memory lining substrate 1 is that polystyrene shape-memory polymer, epoxy resin shape-memory polymer, cyanate are shape-memory polymer, shape memory polyurethane, shape memory polyester, shape memory Styrene-Butadiene, shape memory using trans-polyisoprene or shape memory polynorbornene.Other composition is identical with embodiment four or five with connected mode.
Embodiment nine: present embodiment and embodiment four or five difference are that the wild phase material of composite material of shape memory lining substrate 1 is one or more mixes in graphite fibre, carbon fiber, glass fibre, Kevlar fiber, boron fibre, silicon carbide fibre, carbon black, carbon nano-tube, nickel powder, graphite powder, whisker, silicon carbide powder, copper powder, silver powder and the aluminium powder.Other composition is identical with embodiment four or five with connected mode.
Embodiment ten: present embodiment and embodiment four or fives' difference is that the resistance material of composite material of shape memory lining substrate 1 is the nichrome resistance material, the nickel chromium iron resistance material, the siderochrome resistance material, nickel chromium triangle ferro-aluminum resistance material, siderochrome aluminium resistance material, the molybdenum resistance material, the pure nickel resistance material, the copper-manganese resistance material, the constantan resistance material, copper nickel resistance material, the iron resistance material, the copper resistance material, the mixing of one or more in the electric resistance of stainless material.Other composition is identical with embodiment four or five with connected mode.
Embodiment 11: present embodiment is described in conjunction with Fig. 3, Fig. 4, the difference of present embodiment and embodiment one is to have increased conduction conductor 4, and the dorsal edge place of composite material of shape memory lining substrate 1 is provided with two conduction conductors 4 and is connected with the both positive and negative polarity of power supply; Other composition is identical with embodiment one with connected mode.
Embodiment 12: the difference of present embodiment and embodiment ten is to conduct electricity conductor 4 and is connected in resistance heating material or the wild phase material on graphite fibre or the carbon fiber; Voltage is directly loaded on the conduction conductor 4, make in resistance heating material or the wild phase material graphite fibre or carbon fiber heating with to 1 heating of composite material of shape memory lining substrate, to realize the motion of drive unit from folding contraction state to deployed condition; Other composition is identical with embodiment ten with connected mode.
Embodiment 13: the difference of present embodiment and embodiment one is that the mode of heating of composite material of shape memory lining substrate 1 directly heats composite material of shape memory for the x radiation x that exists by the space space environment, to realize the motion of shape memory composite material hinge driving deploying device from folding contraction state to deployed condition; Other composition is identical with embodiment one with connected mode.
The basic expansion deformation process of the extensible mirror body of shape memory material lining substrate is: before the aerospace craft emission, composite material of shape memory lining substrate 1 is heated to more than the glass transition temperature of composite material of shape memory, the modulus of elasticity of composite material of shape memory lining substrate 1 descends, material softening, at this moment under external force, with gauffer number and the contraction bore of deployable speculum restrained deformation to designing requirement; Keeping under the constant condition of external constraint, composite material of shape memory lining substrate 1 is cooled to below the glass transition temperature of composite material of shape memory, the modulus of elasticity of composite material of shape memory lining substrate 1 rises, hardened material, remove external constraint, deployable mirror shapes is fixed, and the deployable speculum that folds contraction state is fixed in the aerospace craft; At aerospace craft after rail flight, composite material of shape memory lining substrate 1 heating to deployable speculum, composite material of shape memory lining substrate 1 drives deployable speculum deformation-recovery to deployed condition, and deployable speculum realizes launching and entering operating state.Speculum of the present invention adopts the back of the body frame support system of conventional speculum.
Claims (10)
1, the extensible mirror body of shape memory material lining substrate is characterized in that it comprises composite material of shape memory lining substrate (1) and metal level (2); Composite material of shape memory lining substrate (1) be shaped as paraboloidal, the plating inner surface of composite material of shape memory lining substrate (1) has metal level (2).
2, the extensible mirror body of shape memory material lining substrate according to claim 1, the thickness that it is characterized in that metal level (2) is 0.001mm～1mm, the material of metal level is the nickel metal.
3, the extensible mirror body of shape memory material lining substrate according to claim 1, the thickness that it is characterized in that composite material of shape memory lining substrate (1) is 0.1mm～80mm, and the paraboloidal relative aperture of the paraboloidal focal length of composite material of shape memory lining substrate (1) and composite material of shape memory lining substrate (1) is 0.025～2.5.
4, the extensible mirror body of shape memory material lining substrate according to claim 1 is characterized in that the composite material of shape memory of composite material of shape memory lining substrate (1) is made up of shape memory polymer material, wild phase material and resistance material; The volume content of each component material is: 5～98 parts of shape memory polymer materials, 2～95 parts of wild phase materials, resistance heating material＞0～100 part.
5, the extensible mirror body of shape memory material lining substrate according to claim 1 is characterized in that the composite material of shape memory of composite material of shape memory lining substrate (1) is made up of shape memory polymer material, wild phase material or resistance material; The volume content of each component material is: 5～98 parts of shape memory polymer materials, 2～95 parts of wild phase materials, 0～100 part of resistance heating material.
6, according to the extensible mirror body of claim 4 or 5 described shape memory material lining substrates, the shape memory polymer material that it is characterized in that composite material of shape memory lining substrate (1) is that polystyrene shape-memory polymer, epoxy resin shape-memory polymer, cyanate are shape-memory polymer, shape memory polyurethane, shape memory polyester, shape memory Styrene-Butadiene, shape memory using trans-polyisoprene or shape memory polynorbornene.
7, according to the extensible mirror body of claim 4 or 5 described shape memory material lining substrates, the wild phase material that it is characterized in that composite material of shape memory lining substrate (1) is one or more the mixing in graphite fibre, carbon fiber, glass fibre, Kevlar fiber, boron fibre, silicon carbide fibre, carbon black, carbon nano-tube, nickel powder, graphite powder, whisker, silicon carbide powder, copper powder, silver powder and the aluminium powder.
8, according to the extensible mirror body of claim 4 or 5 described shape memory material lining substrates, the wild phase material that it is characterized in that composite material of shape memory lining substrate (1) is one or more the mixing in graphite fibre, carbon fiber, glass fibre, Kevlar fiber, boron fibre, silicon carbide fibre, carbon black, carbon nano-tube, nickel powder, graphite powder, whisker, silicon carbide powder, copper powder, silver powder and the aluminium powder.
9, the extensible mirror body of shape memory material lining substrate according to claim 1, it is characterized in that the dorsal edge place of composite material of shape memory lining substrate (1) is provided with two conduction conductors (4) and is connected with the both positive and negative polarity of power supply in having increased conduction conductor (4).
10, the extensible mirror body of shape memory material lining substrate according to claim 1, the conductor (4) that it is characterized in that conducting electricity are connected in resistance heating material or the wild phase material on graphite fibre or the carbon fiber.
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| CN 200710072084 CN101060201A (en) | 2007-04-23 | 2007-04-23 | Extensible mirror body with shape memory material lining substrate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101186742B (en) * | 2007-11-14 | 2010-07-07 | 哈尔滨工业大学 | Shape memory composite material and preparation method thereof |
| CN102768377A (en) * | 2012-06-27 | 2012-11-07 | 哈尔滨工业大学 | Unfoldable reflecting mirror body based on double-curvature negative poisson ratio honeycomb structure |
| CN109843956A (en) * | 2016-06-24 | 2019-06-04 | 陶氏环球技术有限责任公司 | Metallized polyimide urethane composite material and preparation method |
| CN113480798A (en) * | 2021-07-26 | 2021-10-08 | 中国兵器科学研究院 | Preparation of photoinduced deformation supporting arm and method for regulating and controlling unfolding state of space reflector by utilizing photoinduced deformation supporting arm |
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2007
- 2007-04-23 CN CN 200710072084 patent/CN101060201A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101186742B (en) * | 2007-11-14 | 2010-07-07 | 哈尔滨工业大学 | Shape memory composite material and preparation method thereof |
| CN102768377A (en) * | 2012-06-27 | 2012-11-07 | 哈尔滨工业大学 | Unfoldable reflecting mirror body based on double-curvature negative poisson ratio honeycomb structure |
| CN109843956A (en) * | 2016-06-24 | 2019-06-04 | 陶氏环球技术有限责任公司 | Metallized polyimide urethane composite material and preparation method |
| CN113480798A (en) * | 2021-07-26 | 2021-10-08 | 中国兵器科学研究院 | Preparation of photoinduced deformation supporting arm and method for regulating and controlling unfolding state of space reflector by utilizing photoinduced deformation supporting arm |
| CN113480798B (en) * | 2021-07-26 | 2022-05-13 | 中国兵器科学研究院 | Preparation of photoinduced deformation supporting arm and method for regulating and controlling unfolding state of space reflector by utilizing photoinduced deformation supporting arm |
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Open date: 20071024 |