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Sealant material verification method suitable for airworthiness certification

A sealant, design verification technology, applied in special data processing applications, instruments, aircraft parts, etc., to achieve the effect of improving efficiency, improving reliability, and shortening the development cycle

Inactive Publication Date: 2019-04-09
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no systematic sealant material design verification method for airworthiness certification. This invention proposes a systematic and economical sealant material design and verification method to support the airworthiness certification process of civil aircraft sealant materials

Method used

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  • Sealant material verification method suitable for airworthiness certification

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Embodiment Construction

[0022] A sealant material verification method for airworthiness certification is provided, which includes the following steps:

[0023] Step 1, screen and select sealant materials according to the performance goals of aircraft design, and preliminarily determine the material selection system for sealant materials;

[0024] Step 2, for the sealant material used in domestic civil aircraft, if it can be proved that the material has been used in a certain model, and the model has obtained the CAAC type certificate of China Civil Aviation, only the design description method is used to indicate the material Conformity, if the material is no longer tested and verified, all operations of this method will be terminated; if not consistent, step 3 will be used for verification;

[0025] Step 3. For sealant materials that cannot be demonstrated in step 2, use laboratory verification methods to demonstrate compliance. See steps 4-7 for details;

[0026] Step 4. According to the materials ...

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Abstract

The invention relates to a sealant material verification method suitable for airworthiness certification. The sealant material verification method comprises the following steps: step 1, performing sealant material screening and selecting according to a performance objective designed according to an airplane, and preliminarily determining a sealant material selecting system; step 2, judging whetherto perform airworthiness certification or not for a sealant material which is used by a domestic civil airplane; step 3, judging whether to perform airworthiness certification or not for a sealant material which cannot show conformance by the step 2; step 4, determining a material specification and a material specification verification test schedule of a to-be-verified material according to the material selected in step 3, and submitting the to-be-verified material to the airworthiness certification department to examine; step 5, accomplishing test-level experimental verification and perfecting material specification in the step 4; and step 6, evaluating whether the selected material can reach the requirements of the material specification or not through the test-level experimental verification, and applying for the airworthiness certification department to witness the test in the process. The verification method disclosed by the invention can greatly improve sealant material airworthiness certification efficiency of the sealant material, improves reliability, quickens examination efficiency, and shortens the development period of the product.

Description

technical field [0001] The invention relates to the technical field of aviation airworthiness certification, in particular to a sealant material design verification method suitable for airworthiness certification. Background technique [0002] Aviation non-metallic materials mainly include adhesives, transparent materials, rubber and its products, plastics and its products, sealants, paints, oils, textiles, wires and cables, etc., involving a wide variety. In the process of material selection, it is not only necessary to meet the principles of performance priority, maturity, advancement, process adaptability, versatility, economy, corrosion resistance, etc., but also priority should be given to airworthiness requirements, that is, the selected materials should meet the requirements of China's civil aviation industry. Airworthiness requirements imposed by regulations on materials. At present, there is no systematic sealant material design and verification method for airworth...

Claims

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Application Information

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IPC IPC(8): B64F5/00G06F17/50
CPCB64F5/00G06F30/15
Inventor 邢祎琳刘刚
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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