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

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...

AI Technical Summary

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 simulation test piece design verification methods. Usually, the improvement and modification design verification work of aircraft structure adopts the real structural parts of the aircraft or designs according to the experience of the aircraft designers, and there are often problems such as unreasonable simplified design of test parts and waste of cost.

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