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Method for establishing aircraft wing deformable model

A deformation model, wing technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of few parameters and large errors, and achieve the effect of improving the accuracy of transmission and alignment

Active Publication Date: 2017-04-26
SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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  • Abstract
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Problems solved by technology

The existing technology adopts the method of empirical model, however, the empirical model contains fewer parameters and has a larger error

Method used

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  • Method for establishing aircraft wing deformable model

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Embodiment Construction

[0014] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...

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Abstract

The invention discloses a method for establishing an aircraft wing deformable model. The method for establishing the aircraft wing deformable model comprises the following steps of step 1, establishing an aircraft finite element model, and performing refining on a partial structure on a ring plug-in point; step 2, determining deformation parameters; step 3, obtaining whole-aircraft aerodynamic loads and wing plug-in point loads under corresponding working conditions; step 4, performing finite element simulative analysis; step 5, calculating changing conditions of attitude angles of throwing objects in a longitudinal axis on the wing plug-in point under each load working condition; and step 6, calculating a function relation between changing amount of the attitude angles of the wing hang-in point in a longitudinal axis and multiple deformation parameters. By adoption of the method for establishing the aircraft wing deformable model, a high-precision wing deformable model of any models of aircrafts can be established rapidly, efficiency and optionally, so that the attitude angles of the throwing objects in a longitudinal axis can be calculated in real time, and transfer alignment precision is improved.

Description

technical field [0001] The invention relates to the technical field of aircraft structural strength, in particular to a method for establishing an aircraft wing deformation model. Background technique [0002] When the aircraft is maneuvering at high speed, the wing is affected by various factors such as aerodynamic load and flight altitude to produce time-varying elastic deformation. The resulting change in the attitude angle of the vertical axis of the wing external hardpoint has a great impact on the alignment accuracy of the delivery. [0003] In actual high-speed maneuvering flight, it is necessary to load the wing deformation model in the aircraft in advance, so that according to the current deformation parameters of the aircraft (such as Mach number, overload, etc., the specific parameters depend on the form of the wing deformation model), the hang The value of the vertical axis attitude angle of the point drop. The prior art adopts an empirical model, however, the e...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/17G06F30/23Y02T90/00
Inventor 林湘齐陆华吴德锋李伟王健志
Owner SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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