A part-level simulation test piece design verification method based on finite element simulation analysis

A technology of simulation test and simulation analysis, applied in verification test, component-level simulation test piece design verification, demonstration, component-level simulation test piece design field, can solve unreasonable test piece simplified design and lack of component-level simulation test piece design verification Methods, cost waste and other problems, to improve the analysis and verification capabilities of finite element software, reduce costs, and reduce test costs

Pending Publication Date: 2019-05-03
CHINA SPECIAL TYPE FLIER RES INST
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Problems solved by technology

At present, it is very common in foreign countries to use finite element analysis to simplify the design of test pieces and carry out component-level simulation test piece verification work. In China, there are few researches on component-level simulation test piece design verification, and there is also a lack of corresponding component-level simul

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  • A part-level simulation test piece design verification method based on finite element simulation analysis
  • A part-level simulation test piece design verification method based on finite element simulation analysis
  • A part-level simulation test piece design verification method based on finite element simulation analysis

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[0023] The specific implementation of the present invention will be described in detail in combination with the summary of the invention and the drawings.

[0024] By taking the seal durability design verification of the wing fuel tank as an example, the component-level simulation test piece design verification method is described in detail. Aiming at the problem of oil leakage at the connection between the wing slide rail and the web of the outer wing box section of the aircraft, Finite element simulation analysis and verification test verify the durability of the fuel tank seal.

[0025] a) Selection of aircraft fuel tank structure and finite element calculation and analysis

[0026] 1) According to the oil leakage position of the aircraft fuel tank, a preliminary theoretical analysis of the structure and load characteristics of the aircraft fuel tank is carried out, and it is clear that the sealing durability design verification test site of the wing fuel tank is the connection pa...

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Abstract

The invention discloses a part-level simulation test piece design verification method based on finite element simulation analysis. According to the method, simplification is performed on the basis ofan original aircraft structure, the real structure of an aircraft examination part is reserved, and it is ensured that the stress deformation of a simulation test piece examination part and the stressdeformation of the aircraft original structure examination part are consistent, namely, the structural form, the load bearing characteristic, the manufacturing process and the sealing process of theexamination part are consistent with the aircraft structure. Meanwhile, other structures of the simulation test piece are simplified according to the original structural force transmission path and the main structural form of the aircraft, and it is ensured that the simulation test piece can simulate structural internal environment changes under various working conditions of the aircraft. Therefore, the reliability is high when the part-level simulation test piece is adopted to carry out the verification test.

Description

Technical field [0001] The method belongs to the technical field of aircraft design, and particularly relates to a component-level simulation test piece design verification method based on finite element simulation analysis, and can be used for component-level simulation test piece design, demonstration, and verification tests. Background technique [0002] In order to meet the needs of national aviation strategy and tactics, the improvement and modification of aircraft on different platforms has gradually increased to meet the needs of my country's diversified aviation missions. A large number of newly developed equipment and cutting-edge technologies will gradually be applied to aircraft to improve their own performance and aircraft structure. Forms, materials, technology, etc. are also constantly changing with the upgrading of aircraft equipment and technology. Therefore, it is necessary to carry out verification tests to verify the constantly emerging new structural forms, new...

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Application Information

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IPC IPC(8): G06F17/50
CPCY02T90/00
Inventor 赵连红叶远桁刘成臣尹风雷张红飞慕仙莲张登李孟思蔡舒阳何卫平金涛刘元海王浩伟
Owner CHINA SPECIAL TYPE FLIER RES INST
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