CN116141651A - Shape memory material-based aircraft emergency slide and manufacturing method thereof - Google Patents

Shape memory material-based aircraft emergency slide and manufacturing method thereof Download PDF

Info

Publication number
CN116141651A
CN116141651A CN202310243206.6A CN202310243206A CN116141651A CN 116141651 A CN116141651 A CN 116141651A CN 202310243206 A CN202310243206 A CN 202310243206A CN 116141651 A CN116141651 A CN 116141651A
Authority
CN
China
Prior art keywords
substrate
shape memory
crease
crease group
emergency slide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310243206.6A
Other languages
Chinese (zh)
Inventor
冷劲松
赵伟
曾成均
刘立武
刘彦菊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin Institute of Technology
Original Assignee
Harbin Institute of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Harbin Institute of Technology filed Critical Harbin Institute of Technology
Priority to CN202310243206.6A priority Critical patent/CN116141651A/en
Publication of CN116141651A publication Critical patent/CN116141651A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D25/00Emergency apparatus or devices, not otherwise provided for
    • B64D25/08Ejecting or escaping means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/02Bending or folding
    • B29C53/04Bending or folding of plates or sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/80Component parts, details or accessories; Auxiliary operations
    • B29C53/84Heating or cooling
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00Aeronautics or air transport
    • Y02T50/40Weight reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Aviation & Aerospace Engineering (AREA)

Abstract

The invention provides an aircraft emergency slide based on shape memory materials and a manufacturing method thereof, wherein the method comprises the following steps: taking a substrate, wherein a first crease group and a second crease group are arranged on the substrate, a heating device is arranged at the first crease group and the second crease group, the first crease group of the substrate is heated to soften the first crease group of the substrate, and then the substrate is folded into a slide shape along the first crease group to cool and harden the substrate; the manufacturing materials of the substrate comprise shape memory materials and reinforcing materials; and heating the second crease group of the substrate to soften the second crease group of the substrate, folding the substrate along the second crease group, and cooling and hardening the substrate to obtain the folded airplane emergency slide based on the shape memory material. The shape memory material-based airplane emergency slide provided by the invention has the advantages of simple driving mechanism, stable unfolding process and lower maintenance cost, and can avoid adverse effects caused by the scratch and air leakage of the emergency slide.

Description

Shape memory material-based aircraft emergency slide and manufacturing method thereof
Technical Field
The invention relates to the technical field of emergency rescue equipment, in particular to an aircraft emergency slide based on a shape memory material and a manufacturing method thereof.
Background
There are a variety of emergency rescue devices on board an aircraft, one of which is an aircraft emergency slide, which must be released by crew members at a first time upon occurrence of an emergency situation, and which is therefore very important for aviation safety. Each gate and service gate of the aircraft has an emergency slide thereon that needs to be manually operated to help passengers and units escape in emergency situations, however, existing emergency slides are mostly of inflatable construction, and thus are easily scratched or punctured by sharp objects, which has a high probability of affecting the 90 second golden escape time. In addition, the inflatable emergency slide has the problems of complex driving mechanism, unstable unfolding process, air leakage, high maintenance cost and the like.
Disclosure of Invention
The invention solves the technical problems that the existing inflatable emergency slide structure has at least one of the problems of complex driving mechanism, unstable unfolding process, higher maintenance cost, easy breakage, air leakage and the like.
In order to solve the technical problems, the invention adopts the following technical scheme:
a method for manufacturing an aircraft emergency slide based on shape memory materials comprises the following steps:
s1, taking a substrate, wherein a first crease group and a second crease group are arranged on the substrate, a heating device is arranged at the first crease group and the second crease group, the first crease group of the substrate is heated so as to soften the first crease group of the substrate, and then the substrate is folded into a slide shape along the first crease group, so that the substrate is cooled and hardened; wherein, the manufacturing material of the substrate comprises a shape memory material and a reinforcing material;
and S2, heating the second crease group of the substrate to soften the second crease group of the substrate, then folding the substrate along the second crease group, and cooling and hardening the substrate to obtain the folded airplane emergency slide based on the shape memory material.
Preferably, the substrate is rectangular, the first crease group includes two first creases, the first creases are wavy and extend along the length direction of the substrate, and the two first creases are symmetrically distributed relative to the short side symmetry axis of the substrate and have peaks deviating from each other.
Preferably, the second crease group includes a plurality of second creases parallel to the short sides of the substrate, and the plurality of second creases are distributed at equal intervals and have the same length as the short sides of the substrate.
Preferably, the shape memory material comprises at least one of an epoxy thermoplastic shape memory polymer, an epoxy thermoset shape memory polymer, a polyimide shape memory polymer, and a cyanate shape memory polymer.
Preferably, the reinforcing material includes at least one of graphite fiber, carbon fiber, glass fiber, boron fiber, silicon carbide fiber, carbon powder, carbon black, carbon nanotube and nickel powder.
Preferably, the reinforcing material comprises 2% -80% of the total mass of the shape memory material and the reinforcing material.
Preferably, the heating device comprises one of a resistance wire, a conductive adhesive and an electrothermal film.
The invention also provides an aircraft emergency slide based on the shape memory material, which is manufactured by adopting the manufacturing method of the aircraft emergency slide based on the shape memory material.
Preferably, the substrate is rectangular, a third crease group is further arranged on the substrate, the third crease group comprises two third creases, the third creases are straight lines parallel to the long sides of the substrate, and the two third creases are symmetrically distributed relative to the symmetry axis of the short sides of the substrate.
Preferably, the substrate is rectangular, and a fourth crease group is further arranged on the substrate, the fourth crease group comprises a plurality of fourth creases, the fourth creases are elliptical, and the long axes of the fourth creases are coincident with the symmetry axes of the short sides of the substrate.
Compared with the prior art, the aircraft emergency slide based on the shape memory material is made of the shape memory material and the reinforcing material, the emergency slide is made in a paper folding-like mode, the reinforcing material can enable the emergency slide to have high strength, on the basis, the aircraft emergency slide can be unfolded and folded only through thermal stimulation, the emergency slide driving mechanism is simple, the unfolding process is stable, the maintenance cost is low, and because the unfolding process of the aircraft emergency slide does not involve inflation, adverse effects caused by the fact that the emergency slide is scratched and air leakage can be avoided.
Drawings
FIG. 1 is a flow chart of an aircraft emergency slide based on shape memory materials in an embodiment of the invention;
FIG. 2 is a schematic diagram of a substrate according to an embodiment of the invention;
FIG. 3 is a schematic illustration of an aircraft emergency slide based on shape memory materials in an expanded state in an embodiment of the invention;
FIG. 4 is a schematic illustration of an aircraft emergency slide based on shape memory material in a folded state in an embodiment of the invention;
FIG. 5 is a process diagram of an aircraft emergency slide based on shape memory materials from a folded state to an unfolded state in an embodiment of the invention;
FIG. 6 is a schematic illustration of a stretcher made in an embodiment of the invention;
FIG. 7 is a schematic diagram of a unit in an embodiment of the invention;
fig. 8 is a schematic view of a fabricated lifeboat in an embodiment of the present invention.
Reference numerals illustrate:
1. a substrate, 2, a first crease, 3, a second crease, 4, a third crease, 5 and a fourth crease.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
It should be noted that, without conflict, features in the embodiments of the present invention may be combined with each other. It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. In the present invention, the symmetry axis of the short sides of the substrate 1 is understood to be a straight line passing through the midpoints of the two short sides of the substrate 1 at the same time.
As shown in fig. 1, an embodiment of the present invention provides a method for manufacturing an aircraft emergency slide based on a shape memory material, including:
step S1, taking a substrate 1, wherein a first crease group and a second crease group (shown in fig. 2) are arranged on the substrate 1, heating devices are arranged at the first crease group and the second crease group, the first crease group of the substrate 1 is heated so as to soften the first crease group of the substrate 1, and then the substrate 1 is folded into a slide shape (shown in fig. 3) along the first crease group, so that the substrate 1 is cooled and hardened; wherein, the manufacturing materials of the substrate 1 comprise shape memory materials and reinforcing materials;
and S2, heating the second crease group of the substrate 1 to soften the second crease group of the substrate 1, then folding the substrate 1 along the second crease group, and cooling and hardening the substrate 1 to obtain the folded airplane emergency slide (shown in fig. 4) based on the shape memory material.
When the airplane emergency slide prepared by the method disclosed by the embodiment of the invention is not used, the airplane emergency slide is in a folded state as shown in fig. 4, and the space occupied by the airplane emergency slide is relatively small, so that the airplane emergency slide is convenient to store. When an emergency situation occurs to the aircraft, the second crease group is heated by the heating device, so that the aircraft emergency slide can be opened to the unfolding state shown in fig. 3, and the process of converting the aircraft emergency slide from the folding state to the unfolding state is shown in fig. 5.
Compared with the prior art, the aircraft emergency slide based on the shape memory material is made of the shape memory material and the reinforcing material, the emergency slide is made in a paper folding-like mode, the reinforcing material can enable the emergency slide to have high strength, on the basis, the aircraft emergency slide can be unfolded and folded only through thermal stimulation, the aircraft emergency slide is simple in driving mechanism, stable in unfolding process and low in maintenance cost, and because the unfolding process of the aircraft emergency slide does not involve inflation, adverse effects caused by the fact that the emergency slide is scratched and air leakage can be avoided.
In an embodiment of the present invention, as shown in fig. 2, the substrate 1 is illustratively rectangular, the first crease group includes two first creases 2, the first creases 2 are wavy and extend along the length direction of the substrate 1, and the two first creases 2 are symmetrically distributed relative to the symmetry axis of the short side of the substrate 1 and have peaks facing away. The second crease group comprises a plurality of second creases 3 parallel to the short sides of the substrate 1, and the second creases 3 are distributed at equal intervals and have the same length as the short sides of the substrate 1. Preferably, each of said second folds 3 passes by a crest or trough of said first folds 2.
In an embodiment of the present invention, the shape memory material comprises at least one of an epoxy thermoplastic shape memory polymer, an epoxy thermoset shape memory polymer, a polyimide shape memory polymer, and a cyanate shape memory polymer. The glass transition temperature of the shape memory material is designed by changing the material proportion so as to meet the working requirement. For the aircraft emergency slide, the glass transition temperature can be adjusted to be about 200 ℃.
In an embodiment of the present invention, the reinforcing material includes at least one of graphite fiber, carbon fiber, glass fiber, boron fiber, silicon carbide fiber, carbon powder, carbon black, carbon nanotube and nickel powder. The reinforcing material accounts for 2% -80% of the total mass of the shape memory material and the reinforcing material.
In an embodiment of the invention, the heating device comprises one of a resistance wire, a conductive adhesive and an electrothermal film. Preferably, the heating device is an electrothermal film.
The embodiment of the invention also provides an aircraft emergency slide based on the shape memory material, which is manufactured by adopting the manufacturing method of the aircraft emergency slide based on the shape memory material.
In the embodiment of the present invention, the substrate 1 is rectangular, a third crease group is further disposed on the substrate 1, the third crease group includes two third creases 4, the third creases 4 are straight lines parallel to the long sides of the substrate 1, and the two third creases 4 are symmetrically distributed relative to the symmetry axis of the short sides of the substrate 1. After the aircraft emergency slide is unfolded, the first crease group and the second crease group are heated to soften the first crease group and the second crease group, the aircraft emergency slide is unfolded to be in the initial shape of the substrate 1, then the third crease group of the aircraft emergency slide is heated to soften the third crease group, the aircraft emergency slide is folded along the third crease group, and then the aircraft emergency slide can be folded to be in the stretcher shape (shown in fig. 6). When a large number of stretchers are needed when people suffer from more casualties on the airplane, the airplane emergency slide folded into the stretcher shape can be divided into a plurality of stretchers for rescue.
In the embodiment of the present invention, the substrate 1 is rectangular, and a fourth crease group is further disposed on the substrate 1, where the fourth crease group includes a plurality of fourth creases 5, and the fourth crease 5 is elliptical and has a long axis coincident with a symmetry axis of a short side of the substrate 1. After the aircraft emergency slide is unfolded, the first crease group and the second crease group are heated, so that the first crease group and the second crease group are softened, and the aircraft emergency slide is unfolded into the initial shape of the base plate 1. The aircraft emergency slide is divided into a plurality of units along the length direction (shown in fig. 7), each unit only comprises a fourth crease 5, the fourth crease 5 of the unit is heated to soften the fourth crease 5, the unit is folded along the fourth crease 5, and after the shape is adjusted, the aircraft emergency slide can be folded into the shape of a lifeboat (shown in fig. 8). When the aircraft falls to the barren island due to special conditions, the aircraft emergency slide can be divided into a plurality of units, and then the units are folded to form the lifeboat for escape or lifesaving. In the present invention, the initial shape of the substrate 1, that is, the shape of the substrate 1 when not folded in step S1.
In addition, although the present disclosure is disclosed above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the disclosure.

Claims (10)

1. The method for manufacturing the aircraft emergency slide based on the shape memory material is characterized by comprising the following steps of:
s1, taking a substrate (1), wherein a first crease group and a second crease group are arranged on the substrate (1), heating devices are arranged at the first crease group and the second crease group, the first crease group of the substrate (1) is heated so as to soften the first crease group of the substrate (1), and then the substrate (1) is folded into a slide shape along the first crease group, so that the substrate (1) is cooled and hardened; wherein the manufacturing material of the substrate (1) comprises a shape memory material and a reinforcing material;
and S2, heating the second crease group of the substrate (1) to soften the second crease group of the substrate (1), then folding the substrate (1) along the second crease group, and cooling and hardening the substrate (1) to obtain the folded airplane emergency slide based on the shape memory material.
2. The method for manufacturing the airplane emergency slide based on the shape memory material according to claim 1, wherein the base plate (1) is rectangular, the first crease group comprises two first creases (2), the first creases (2) are wavy and extend along the length direction of the base plate (1), and the two first creases (2) are symmetrically distributed relative to the symmetry axis of the short side of the base plate (1) and have wave peaks which are opposite.
3. The method for manufacturing an aircraft emergency slide based on shape memory materials according to claim 2, characterized in that the second crease group comprises a plurality of second creases (3) parallel to the short sides of the substrate (1), wherein the plurality of second creases (3) are distributed at equal intervals and have the same length as the short sides of the substrate (1).
4. The method of claim 1, wherein the shape memory material comprises at least one of an epoxy thermoplastic shape memory polymer, an epoxy thermoset shape memory polymer, a polyimide shape memory polymer, and a cyanate shape memory polymer.
5. The method of claim 1, wherein the reinforcing material comprises at least one of graphite fiber, carbon fiber, glass fiber, boron fiber, silicon carbide fiber, carbon powder, carbon black, carbon nanotubes, and nickel powder.
6. The method of making an aircraft emergency slide based on shape memory materials according to claim 1, wherein the reinforcing material comprises 2% -80% of the total mass of the shape memory material and the reinforcing material.
7. The method of claim 1, wherein the heating device comprises one of a resistive wire, a conductive adhesive, and an electrothermal film.
8. An aircraft emergency slide based on shape memory material, characterized in that it is manufactured by the method for manufacturing an aircraft emergency slide based on shape memory material according to any one of claims 1-7.
9. The aircraft emergency slide based on shape memory materials according to claim 8, characterized in that the base plate (1) is rectangular, a third crease group is further arranged on the base plate (1), the third crease group comprises two third creases (4), the third creases (4) are straight lines parallel to the long sides of the base plate (1), and the two third creases (4) are symmetrically distributed relative to the symmetry axis of the short sides of the base plate (1).
10. The shape memory material based aircraft emergency slide according to claim 8, characterized in that the base plate (1) is rectangular, a fourth crease group is further provided on the base plate (1), the fourth crease group comprises a plurality of fourth creases (5), the fourth crease (5) is elliptical, and the long axis of the fourth crease is coincident with the short side symmetry axis of the base plate (1).
CN202310243206.6A 2023-03-14 2023-03-14 Shape memory material-based aircraft emergency slide and manufacturing method thereof Pending CN116141651A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310243206.6A CN116141651A (en) 2023-03-14 2023-03-14 Shape memory material-based aircraft emergency slide and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310243206.6A CN116141651A (en) 2023-03-14 2023-03-14 Shape memory material-based aircraft emergency slide and manufacturing method thereof

Publications (1)

Publication Number Publication Date
CN116141651A true CN116141651A (en) 2023-05-23

Family

ID=86373681

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310243206.6A Pending CN116141651A (en) 2023-03-14 2023-03-14 Shape memory material-based aircraft emergency slide and manufacturing method thereof

Country Status (1)

Country Link
CN (1) CN116141651A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101797805A (en) * 2010-02-01 2010-08-11 哈尔滨工业大学 Method for manufacturing inflatable expansion wing skin based on shape memory polymer
CN105461946A (en) * 2015-12-14 2016-04-06 哈尔滨工业大学 Deformation-controllable shape memory composite material and deformation method thereof
CN108987880A (en) * 2018-07-25 2018-12-11 哈尔滨工业大学 Deployable antenna basic unit, deployable antenna and method for folding based on paper folding
CN110843312A (en) * 2019-11-26 2020-02-28 哈尔滨工程大学 Grid-reinforced intelligent paper folding composite material structure design method
CN111328182A (en) * 2018-12-13 2020-06-23 哈尔滨工业大学 Deformed circuit board based on shape memory polymer composite material
CN112373163A (en) * 2020-11-26 2021-02-19 北京航空航天大学 Air inflation and expansion composite material structure capable of being rigidized

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101797805A (en) * 2010-02-01 2010-08-11 哈尔滨工业大学 Method for manufacturing inflatable expansion wing skin based on shape memory polymer
CN105461946A (en) * 2015-12-14 2016-04-06 哈尔滨工业大学 Deformation-controllable shape memory composite material and deformation method thereof
CN108987880A (en) * 2018-07-25 2018-12-11 哈尔滨工业大学 Deployable antenna basic unit, deployable antenna and method for folding based on paper folding
CN111328182A (en) * 2018-12-13 2020-06-23 哈尔滨工业大学 Deformed circuit board based on shape memory polymer composite material
CN110843312A (en) * 2019-11-26 2020-02-28 哈尔滨工程大学 Grid-reinforced intelligent paper folding composite material structure design method
CN112373163A (en) * 2020-11-26 2021-02-19 北京航空航天大学 Air inflation and expansion composite material structure capable of being rigidized

Similar Documents

Publication Publication Date Title
Wang et al. Stretchable materials of high toughness and low hysteresis
Peng et al. 4D printing of freestanding liquid crystal elastomers via hybrid additive manufacturing
US10660200B2 (en) Archimedean spiral design for deformable electronics
Vocke III et al. Development and testing of a span-extending morphing wing
US20160136877A1 (en) Deterministic assembly of complex, three-dimensional architectures by compressive buckling
Li et al. Ground and geostationary orbital qualification of a sunlight-stimulated substrate based on shape memory polymer composite
US10046353B2 (en) Microscale stamp with reversible adhesion for transfer printing
US20190270503A1 (en) Envelope film suspenders for high-altitude balloons
Zhang et al. Highly stretchable and conductive fibers enabled by liquid metal dip-coating
Li et al. 3D printed graphene/polyurethane wearable pressure sensor for motion fitness monitoring
US20100319745A1 (en) Method of using thermoelectric device
CN108987880A (en) Deployable antenna basic unit, deployable antenna and method for folding based on paper folding
JP6567969B2 (en) Three-dimensional complex multilayer structure and manufacturing method thereof
ES2719725T3 (en) Composite structure formation apparatus
CN116141651A (en) Shape memory material-based aircraft emergency slide and manufacturing method thereof
CN107031144A (en) A kind of high efficiency and heat radiation metal foil and preparation method and application
US9150000B2 (en) Method for making transparent conductive element
Li et al. A flexible morphing wing by soft wing skin actuation utilizing dielectric elastomer: experiments and electro-aerodynamic model
CN112812342A (en) Polymer film and preparation method and application thereof
EP3634741A1 (en) Fiber-reinforced films
Yoon et al. Fabrication of a Highly Stretchable, Wrinkle‐Free Electrode with Switchable Transparency Using a Free‐Standing Silver Nanofiber Network and Shape Memory Polymer Substrate
Shen et al. A new vascular system highly efficient in the storage and transport of healing agent for self-healing wind turbine blades
CN107539012B (en) Flexible temperature-sensitive color-changing composite material and temperature-sensitive design producing apparatus
CN209489656U (en) A kind of folding water cup with from stretching, extension function
US20200101202A1 (en) Stretchable nanocomposite skin material and related structures

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination