CN110654565B - Method and system for quickly repairing aircraft exterior complex curved surface skin - Google Patents
Method and system for quickly repairing aircraft exterior complex curved surface skin Download PDFInfo
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- CN110654565B CN110654565B CN201910917333.3A CN201910917333A CN110654565B CN 110654565 B CN110654565 B CN 110654565B CN 201910917333 A CN201910917333 A CN 201910917333A CN 110654565 B CN110654565 B CN 110654565B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/40—Maintaining or repairing aircraft
Abstract
The invention relates to a method and a system for quickly repairing a complex curved surface skin on the appearance of an airplane, wherein the method comprises the following steps: step S1: establishing a high-frequency complex curved surface information base according to historical repair data; step S2: aiming at each complex curved surface in the high-frequency complex curved surface information base, a mold is manufactured by using a 3D printing technology; step S3: performing cold extrusion molding on the repair material in the annealed state by using the manufactured die to obtain a repair patch; step S4: carrying out heat treatment on the repair patch; step S5: and when the complex curved surface needs to be repaired, matching whether the complex curved surface is located in the high-frequency complex curved surface information base, and if so, matching the corresponding part for repairing. Compared with the prior art, the invention has the advantages of high patch precision, shortened repair time and the like.
Description
Technical Field
The invention relates to the field of aircraft maintenance, in particular to a method and a system for quickly repairing a skin with a complex curved surface on the appearance of an aircraft.
Background
During operation and maintenance of an aircraft, some aerodynamic leading edge skins often suffer from foreign object damage such as: bird strikes, human strikes, and the like. The pneumatic curved surface profiles are complex double curved surfaces or even multi-curved surfaces, and the curved surfaces need to be manufactured manually when repair is carried out. In previous repairs, two problems were often encountered:
1. the curved surface preparation degree of difficulty is big, and the curved surface laminating degree of artifical preparation can't guarantee, and the precision is not enough when causing the assembly, has the condition of doing over again to take place even.
2. The curved surface has long manufacturing time due to the need of heat treatment, and the time from 7075-T0 to 7075-T6 is 24 hours; 2219-T0 to 2219-T62 took 40 hours; 96 hours were required for 2024-T0 to 2024-T42; this results in a relatively long repair time.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a method and a system for quickly repairing the complex curved surface skin on the appearance of an airplane, which can improve the repair speed of the complex curved surface skin.
The purpose of the invention can be realized by the following technical scheme:
a method for quickly repairing an aircraft exterior complex curved surface skin comprises the following steps:
step S1: establishing a high-frequency complex curved surface information base according to historical repair data;
step S2: aiming at each complex curved surface in the high-frequency complex curved surface information base, a mold is manufactured by using a 3D printing technology;
step S3: performing cold extrusion molding on the repair material in the annealed state by using the manufactured die to obtain a repair patch;
step S4: carrying out heat treatment on the repair patch;
step S5: and when the complex curved surface needs to be repaired, matching whether the complex curved surface is located in the high-frequency complex curved surface information base, and if so, matching the corresponding part for repairing.
The mould is a female mould and a male mould.
The step S1 specifically includes:
step S11: importing the curved surface and curved surface information of each repair in a set time period;
step S12: clustering according to the position and shape of the curved surface to obtain a plurality of clustering results;
step S13: and judging the complexity of the curved surface of each clustering result, and if the complexity meets a set condition, incorporating the complexity into a complex curved surface information base.
The step S2 specifically includes:
step S21: respectively carrying out data mapping on each complex curved surface in the high-frequency complex curved surface information base to obtain 3D data of the complex curved surface;
step S22: and manufacturing a mould by using a 3D printing technology according to the data mapping result.
A quick repair system for an aircraft exterior complex curved surface skin comprises a computer and a 3D printer, wherein the computer is connected with the 3D printer, the computer comprises a processor, a memory and a program stored in the memory and executed by the processor, and the processor executes the program to realize the following steps:
step S1: establishing a high-frequency complex curved surface information base according to historical repair data;
step S2: and controlling a 3D printer to manufacture a mold aiming at each complex curved surface in the high-frequency complex curved surface information base.
Compared with the prior art, the invention has the following beneficial effects:
1) the patch has high precision: the repair patch manufactured by utilizing the original skin data and the 3D printing technology has the characteristics of high attaching precision and good assembling effect, so that the repair quality is greatly improved, and the condition of reworking caused by large precision error of the artificially manufactured skin patch can be avoided.
2) The repair time is shortened: the steps of manufacturing and heat treating the repair skin are advanced, and the saved repair time is different according to different repair materials.
Drawings
Fig. 1 is a flow chart illustrating the main steps of the method.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
A method for quickly repairing an aircraft exterior complex curved surface skin, as shown in fig. 1, comprises the following steps:
step S1: establishing a high-frequency complex curved surface information base according to historical repair data, which specifically comprises the following steps:
step S11: importing the curved surface and curved surface information of each repair in a set time period;
step S12: clustering according to the position and shape of the curved surface to obtain a plurality of clustering results;
step S13: and judging the complexity of the curved surface of each clustering result, and if the complexity meets a set condition, incorporating the complexity into a complex curved surface information base.
Step S2: aiming at each complex curved surface in the high-frequency complex curved surface information base, a 3D printing technology is utilized to manufacture a mold, wherein the mold is a male mold and a female mold, and the method specifically comprises the following steps:
step S21: respectively carrying out data mapping on each complex curved surface in the high-frequency complex curved surface information base to obtain 3D data of the complex curved surface;
step S22: and manufacturing a mould by using a 3D printing technology according to the data mapping result.
Step S3: performing cold extrusion molding on the repair material in the annealed state by using the manufactured die to obtain a repair patch;
step S4: carrying out heat treatment on the repair patch;
step S5: and when the complex curved surface needs to be repaired, matching whether the complex curved surface is located in the high-frequency complex curved surface information base, and if so, matching the corresponding part for repairing.
The method is realized by the following system:
a quick repairing system for complex curved skin on the appearance of an airplane comprises a computer and a 3D printer, wherein the computer is connected with the 3D printer, the computer comprises a processor, a memory and a program stored in the memory and executed by the processor, and the processor realizes the steps S1 and S2 when executing the program.
Compare in former repair scheme repair patch and be artifical the completion of beating, the mould of repair patch for utilizing 3D to print in this application carries out cold extrusion moulding again, and this application patch precision is high: the repair patch manufactured by utilizing the original skin data and the 3D printing technology has the characteristics of high attaching precision and good assembling effect, so that the repair quality is greatly improved, and the condition of reworking caused by large precision error of the artificially manufactured skin patch can be avoided.
In addition, the original repair proposal is that after the damage occurs, a repair patch is manufactured and heat treatment is carried out. The application relates to preparation of a patch and heat treatment. Namely, the repair proposal in the prior art is as follows: finding damage, manufacturing a repair skin, performing heat treatment to repair the skin, and assembling the repair skin; the optimized repair scheme in the application is as follows: common structural repair data evaluation-making a common repair skin-heat treating the common repair skin-occurrence of damage-assembling the repair skin. The optimization scheme advances the steps of manufacturing and heat treating the repair skin, and the saved repair time is different according to different repair materials. 7075-T0 to 7075-T6 took 24 hours; 2219-T0 to 2219-T62 took 40 hours; 2024-T0 to 2024-T42 take 96 hours, which greatly reduces the time for emergency repair of the airplane and improves the availability of the airplane.
Claims (3)
1. A method for quickly repairing an aircraft exterior complex curved surface skin is characterized by comprising the following steps:
step S1: establishing a high-frequency complex curved surface information base according to historical repair data,
step S2: aiming at each complex curved surface in the high-frequency complex curved surface information base, a 3D printing technology is utilized to manufacture a mould,
step S3: the manufactured mould is used for carrying out cold extrusion molding on the repair material in the annealing state to obtain the repair patch,
step S4: the repair patch is subjected to a heat treatment,
step S5: when the complex curved surface needs to be repaired, matching whether the complex curved surface is located in the high-frequency complex curved surface information base or not, and if so, matching the corresponding part for repairing;
the step S1 specifically includes:
step S11: the curved surface and the curved surface information of each repair in a set time period are imported,
step S12: clustering according to the position and shape of the curved surface to obtain multiple clustering results,
step S13: judging the complexity of the curved surface of each clustering result, and if the complexity meets a set condition, incorporating the complexity into a complex curved surface information base;
the repair patch manufactured by utilizing the original skin data and the 3D printing technology has the characteristics of high attaching precision and good assembling effect, so that the repair quality is greatly improved, and the condition of reworking caused by large precision error of the artificially manufactured skin patch can be avoided.
2. The method for rapidly repairing an aircraft exterior complex curved skin as claimed in claim 1, wherein the mold is a male mold and a female mold.
3. The method for rapidly repairing an aircraft exterior complex curved surface skin as claimed in claim 1, wherein the step S2 specifically comprises:
step S21: respectively carrying out data mapping on each complex curved surface in the high-frequency complex curved surface information base to obtain 3D data of the complex curved surface;
step S22: and manufacturing a mould by using a 3D printing technology according to the data mapping result.
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| CN201910917333.3A CN110654565B (en) | 2019-09-26 | 2019-09-26 | Method and system for quickly repairing aircraft exterior complex curved surface skin |
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| CN201910917333.3A CN110654565B (en) | 2019-09-26 | 2019-09-26 | Method and system for quickly repairing aircraft exterior complex curved surface skin |
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| CN110654565A CN110654565A (en) | 2020-01-07 |
| CN110654565B true CN110654565B (en) | 2021-10-08 |
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| CN114474794A (en) * | 2022-01-27 | 2022-05-13 | 沈阳航空航天大学 | Auxiliary maintenance method for composite material component with quick response, low cost and high precision |
| CN115871955B (en) * | 2023-02-21 | 2023-06-06 | 中国人民解放军95633部队 | Method for repairing front edge skin of airplane wing and tail wing |
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| JP2006518886A (en) * | 2002-11-06 | 2006-08-17 | ジオメトリック インフォマティクス インコーポレイテッド | Analysis method of geometric surface by conformal structure |
| US20130082088A1 (en) * | 2011-09-30 | 2013-04-04 | General Electric Company | Method and apparatus for repairing a component |
| US9174314B2 (en) * | 2011-11-03 | 2015-11-03 | Siemens Energy, Inc. | Isothermal structural repair of superalloy components including turbine blades |
| US9156240B2 (en) * | 2013-10-01 | 2015-10-13 | The Boeing Company | Automated production and installation of patches for reworking structures |
| CN106157602A (en) * | 2016-07-28 | 2016-11-23 | 北京小米移动软件有限公司 | The method and apparatus of calling vehicle |
| CN107521090B (en) * | 2017-09-05 | 2020-02-21 | 民政部一零一研究所 | Method for accurately repairing facial deformity of remains based on 3D printing technology |
| FR3072602B1 (en) * | 2017-10-23 | 2019-10-11 | Airbus | METHOD FOR FILLING SURFACE IMPERFECTIONS OF AN AIRCRAFT WING |
| CN108241757A (en) * | 2018-03-05 | 2018-07-03 | 无锡市翱宇特新科技发展有限公司 | A kind of public opinion information big data manages system |
| CN109264022A (en) * | 2018-09-30 | 2019-01-25 | 浙江虹湾通用航空工程技术有限公司 | General aviation aircraft repairing composite material instrument |
| CN109624355A (en) * | 2018-12-10 | 2019-04-16 | 西安航空职业技术学院 | High-performance VARI technological forming composite material goes out plastic structure and method |
| CN109771085B (en) * | 2019-01-14 | 2021-04-13 | 东华大学 | Three-dimensional hernia repair patch with anti-curling property and preparation method thereof |
| CN109981627B (en) * | 2019-03-18 | 2021-02-26 | 武汉思普崚技术有限公司 | Method and system for updating network threat information |
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