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A method for manufacturing a shrinking section of a large wind tunnel

A manufacturing method and technology of shrinkage section, applied in the testing of machines/structural components, instruments, measuring devices, etc., can solve problems such as skin deformation, excessive skin deformation, etc., to save construction time and solve installation accuracy problems , a wide range of effects

Active Publication Date: 2022-05-31
LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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  • Application Information

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Problems solved by technology

[0005] The first purpose of the present invention is to propose a method for manufacturing the shrinkage section of a large-scale wind tunnel on the basis of the prior art, so as to solve the problem of self-deformation caused by too large skin
[0006] The second purpose of the present invention is to solve the problem that a large amount of deformation occurs in the skin during the welding process of the first purpose
[0007] The third purpose of the present invention is to solve the problem of how to ensure the installation accuracy in the assembly process

Method used

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  • A method for manufacturing a shrinking section of a large wind tunnel
  • A method for manufacturing a shrinking section of a large wind tunnel
  • A method for manufacturing a shrinking section of a large wind tunnel

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Embodiment Construction

[0047] All features disclosed in this specification, or all disclosed steps in a method or process, may be combined in any way except mutually exclusive features and / or steps.

[0048] Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), unless expressly stated otherwise, may be replaced by other equivalent or alternative features serving a similar purpose. That is, unless expressly stated otherwise, each feature is but one example of a series of equivalent or similar features.

[0049] The subjects targeted by the solution in this embodiment are as follows: figure 1 As shown, it is a large-sized wind tunnel shrinkage section, the size of the inlet of the shrinkage section is 16366mm×12993mm, the size of the outlet is 8000mm×6000mm, and the length of the front and rear axes is 14050mm. The shrinking section is a single-layer welded structure, consisting of wall plates, longitudinal and transverse rib plates, and wing plates....

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Abstract

The invention discloses a method for manufacturing a contraction section of a large-scale wind tunnel. According to the size of the contraction section of the wind tunnel, a reverse profile mold is designed and manufactured; the installation position of the shell frame of the contraction section is marked on the mold mold; the line is marked Finally, re-inspect the assembly position; then perform pair welding on the shrinkage section frame on the mold; check the size of the frame after the welding is completed; turn over after the size inspection is qualified, so that the inner shape faces upward, and then assemble the skin; finally For overall assembly, weld the upper, lower, left and right frames together. This manufacturing method can effectively guarantee the profile size of the shrinking section of a large wind tunnel, and has the advantages of simple operation, saving construction period, and wide application range. Learn and apply value.

Description

technical field [0001] The invention belongs to the field of equipment manufacturing, and the specific field is a method for manufacturing a constricted section of a large-scale wind tunnel in the field of wind tunnel manufacturing. Background technique [0002] The wind tunnel is a multi-disciplinary integrated simulation ground test equipment established for the key aerodynamic and related problems that must be solved in the development of large-scale advanced aircraft. The contraction section is located between the stable section and the test section. The uniformity of the flow in the test section reduces the airflow turbulence in the test section. [0003] As one of the key sections in the steel structure wind tunnel, the shrinkage section of the wind tunnel has a bicubic curve. Therefore, when the size of the shrinkage section of a large-scale wind tunnel is larger and the weight is heavier, it must be controlled during the manufacturing process. Geometric and dimensio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00G01M9/06
CPCB23P15/00G01M9/06Y02T90/00
Inventor 武亮亮尹仲夏黄志远梁建亮高大鹏贾英杰
Owner LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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