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Stress analysis method for each jacking point structure in airplane jacking state

A technology of stress analysis and point structure, applied in the direction of instrumentation, electrical digital data processing, geometric CAD, etc., can solve the problem of inaccurate local stress analysis of the jacking point structure, and achieve the effect of accurate structural stress analysis results in the jacking area

Pending Publication Date: 2021-06-29
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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Problems solved by technology

According to the actual model experience, the results of the local stress analysis of the jacking point structure are inaccurate

Method used

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  • Stress analysis method for each jacking point structure in airplane jacking state
  • Stress analysis method for each jacking point structure in airplane jacking state

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Embodiment Construction

[0018] In the prior art, the stress analysis of the aircraft top rising area is first established to establish a local model of the top rival, and constrained in the top rising area, and the vertical load and horizontal load specified by the terms are applied at the top rising point. The vertical load and The horizontal load is considered to balance the constraint. The vertical load of the aircraft was not considered, and the vertical load of the top rising zone structure was not considered, the level load of the adjacent regional structure was not considered, and the stress distribution of the adjacent region adjacent region adjacent regions of the analysis was inaccurate.

[0019] Referring to the drawings, the tasks and object of the present invention are for the aircraft that the actual top rising scenarius of horizontal shaking occurs when the aircraft is vertical, and the level loads in the same direction will be given a reasonable, reliable Stress analysis method.

[0020] ...

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Abstract

A stress analysis method for each jacking point structure in an airplane jacking state is a reasonable stress analysis method for each jacking point structure in the airplane jacking state aiming at an actual scene that a jacking area structure bears a horizontal load besides a vertical load due to horizontal acceleration generated by shaking of an airplane when the airplane is jacked, so the structure stress analysis result of the jacking area is more accurate.

Description

Technical field [0001] The invention belongs to, but is not limited to, the aviation engineering application is related to the stress analysis method of top liter structure under aircraft top rise, which is important for mitigating structural weight and improving structural design rationality, and security. [0002] technical background [0003] When the airworthiness standard specifies the aircraft, the structure is designed to withstand the "vertical load and horizontal load" individual acting on each top rising point, and the source of the top lifting load and its equilibrium method are not clearly defined. Generally considering only the maximum vertical load and horizontal load, constrained top rising region structure, and performs local stress analysis. According to the actual model experience, the top-rise structure local stress analysis is inaccurate. Inventive content [0004] In order to solve the problem of the accuracy of the local structure stress analysis of the airc...

Claims

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Application Information

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IPC IPC(8): G06F30/23G06F30/15G06F119/14
Inventor 宋晓鹤梁尚清程文杰
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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