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Method for quickly designing elbow structure in aero-engine external pipeline system

A technology for aero-engines and external pipelines, which is used in mechanical equipment, pipes/pipe joints/fittings, elbows, etc. It can solve the disconnection between test and theoretical analysis, the large workload of pipeline structure design and installation, and the inability to guarantee accuracy, etc. problems, to achieve the effect of shortening the design and manufacturing cycle, rapid design, and improving reliability

Active Publication Date: 2019-11-08
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The pipeline structure design and installation workload is heavy, the accuracy cannot be guaranteed, and the experimental test and theoretical analysis are seriously disconnected

Method used

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  • Method for quickly designing elbow structure in aero-engine external pipeline system
  • Method for quickly designing elbow structure in aero-engine external pipeline system
  • Method for quickly designing elbow structure in aero-engine external pipeline system

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Embodiment Construction

[0037] specific implementation plan

[0038] The present invention aims to provide a quick design method for the bent pipe structure in the external pipeline system. In the initial design stage of the bent pipe structure in the external pipeline system, the vibration prediction of the bent pipe structure can be realized, and the light weight of the bent pipe structure can be completed. Quantitative design avoids vibration failures of the bent pipe structure, improves the anti-vibration capability of the bent pipe structure, and makes its vibration characteristics meet the vibration requirements of the whole machine.

[0039] Attached below figure 1 And embodiment scheme of the present invention is further described:

[0040] (1) In the initial design stage of the bent pipe structure, the maximum value of the vibration of the structural system of different accessories of the external structure of the aero-engine is taken as the vibration index of the structural system. Firstl...

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Abstract

The invention relates to the field of external accessories of aviation and aerospace equipment, and discloses a method for quickly designing an elbow structure in an aero-engine external pipeline system, for completing the lightweight design of the elbow structure in the external pipeline system, reducing the vibration fault of the elbow structure and improving the vibration resistance of the elbow structure. According to the method, in the initial design stage of the elbow structure in an external pipeline system of aviation and aerospace equipment, the vibration condition of the elbow structure is estimated through the elbow structure rapid design method, and the technical variable parameters of the elbow structure are optimized according to the estimation result, and rapid design of theelbow structure is completed. Due to the method, the design cost can be reduced, and the development period is shortened, and the installation and arrangement success rate of the elbow structure in an external pipeline system is increased.

Description

technical field [0001] The invention belongs to the field of external accessories of aviation and spaceflight equipment, and relates to a quick design method for a bent pipe structure in an external pipeline system. Background technique [0002] Due to the limitation of installation space and installation environment in the external pipeline structure of aviation and aerospace, there are a large number of elbow structures. The elbow structures include "Z", "L" and "S", etc. The position of the hoop is not fixed, and there is great uncertainty in the design of the entire elbow structure. When the elbow structure changes the direction of the pipeline, it will cause changes in the stiffness and mass distribution of the entire pipeline system. Therefore, when the form of the elbow pipe changes, the inherent characteristics and vibration behavior of the pipeline system may also change. This is It is essentially different from the straight pipe system. [0003] There is no unifo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50F16L43/00F16L55/035
CPCF16L43/00F16L55/035
Inventor 韩清凯陈一同朱清玉翟敬宇
Owner DALIAN UNIV OF TECH
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