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TBW layout aircraft wing structure analysis method based on engineering beam theory

A wing structure and analysis method technology, which is applied in the field of aviation systems, can solve problems such as low calculation accuracy and long time consumption, and achieve the effect of fast calculation methods and making up for missing data

Active Publication Date: 2019-10-15
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0004] Purpose of the invention: In view of the problems of low calculation accuracy and long time consumption in the above-mentioned prior art, the present invention provides a method for analyzing the wing structure of an aircraft with TBW layout based on engineering beam theory

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  • TBW layout aircraft wing structure analysis method based on engineering beam theory
  • TBW layout aircraft wing structure analysis method based on engineering beam theory
  • TBW layout aircraft wing structure analysis method based on engineering beam theory

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Embodiment Construction

[0033] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention.

[0034] The present embodiment provides a method for analyzing the wing structure of a TBW layout aircraft based on the engineering beam theory; the specific method is as follows: figure 2 shown, including the following steps:

[0035] Three-dimensional geometric modeling: the present invention first carries out geometric modeling to the wing part of TBW aircraft, and described wing part comprises: main wing, truss; Described truss comprises: diagonal brace, support; Define main wing, diagonal brace respectively and the geometric parameters of the supports. The geometric parameter definition process is completed in the Excel table. Using the calculation funct...

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Abstract

The invention discloses a TBW layout aircraft wing structure analysis method based on an engineering beam theory. The method comprises the following steps: firstly, selecting proper parameters to carry out parametric modeling on a wing part (including a main wing, an inclined strut and a support) of the truss support wing aircraft; and on the basis of the established three-dimensional model, dividing the wing box section into a plurality of small sections along the spanwise direction, and calculating the equivalent stiffness of each small section; simplifying a main wing and an inclined strutinto a beam model and simplifying a support into a rod model through an engineering beam theory, wherein the simplified model is a statically indeterminate structure system, and the equivalent stiffness is added to the simplified model according to spanwise distribution; through the virtual force principle, analyzing the structure, and obtaining the stress and the structure displacement in the structure. According to the method, a rapid calculation method is provided for wing structure weight analysis in the overall design stage of the truss supporting wing aircraft, and the defects of data loss of an empirical method, too long consumed time of a finite element method and the like are overcome.

Description

technical field [0001] The invention belongs to the technical field of aviation systems, and in particular relates to a method for analyzing a wing structure of an aircraft with TBW layout based on engineering beam theory. Background technique [0002] Truss-Braced Wing (abbreviated as TBW) layout airliner is a new type of layout airliner. like figure 1 As shown, compared with conventional aircraft, this type of aircraft adds truss components under the wing, and unloads the wing with a large aspect ratio through relatively simple structural components, reducing the structural weight of the wing, thereby reducing the entire aircraft the weight of. At the same time, due to the effect of the truss, compared with conventional aircraft, TBW aircraft can have a larger aspect ratio, thereby obtaining a higher cruise lift-to-drag ratio, less fuel consumption, and greater advantages in economy and environmental protection. . [0003] However, as a new layout form, TBW aircraft la...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/23G06F30/20Y02T90/00
Inventor 范周伟祝雯生胡京煜钱晓强
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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