Method for generating three-dimensional ice formation model of wing

An ice-type, three-dimensional technology, applied in the field of generation of three-dimensional icing models of wings, can solve the problem that the randomness of the icing process cannot be reflected, and achieve the effect of simple assembly process

Active Publication Date: 2018-04-20
SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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Problems solved by technology

This ice type generation method ignores the three-dimensional shape characteristics of the icing shape in the upward direction, and cannot reflect the randomness and inhomogeneity in the icing process.

Method used

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  • Method for generating three-dimensional ice formation model of wing
  • Method for generating three-dimensional ice formation model of wing
  • Method for generating three-dimensional ice formation model of wing

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Embodiment Construction

[0022] 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.

[0023] The method for generating the three-dimensional icing model of...

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Abstract

The invention provides a method for generating a three-dimensional ice formation model of a wing. The method comprises: x cross section ice types of a wing in a certain state are obtained by a wing icing wind tunnel test; characteristic lengths of the cross section ice types are extracted and a two-dimensional ice-type profile is generated; a three-dimensional ice-type unit is stretched accordingto a needed thickness b based on the two-dimensional ice-type profile, and numbering is carried out; according to the thickness b, the number n needing three-dimensional ice-type unit combination is obtained by combining an extending length L of the wing three-dimensional ice-type needing simulation; n random integer series A(n) between 1 and x are generated; the ice-type units with correspondingnumbers are combined to the wing front edge according to a certain extending direction by corresponding the series A(n) and thus a three-dimensional ice type appearance model of the wing is generated.With the method provided by the invention, the more ice-type characteristics of the icing test are kept by the three-dimensional ice type; and when ice type units are arranged, different three-dimensional ice types are generated by using a method of generating random numbers by a program.

Description

technical field [0001] The invention belongs to the field of aircraft icing tests, and in particular relates to a method for generating a three-dimensional icing model of an airfoil. Background technique [0002] During flight, the surface of the aircraft may be icy, and the ice on the surface of the aircraft will have a serious impact on the aerodynamic characteristics of the aircraft, such as increased drag and drastic changes in pitch moment characteristics, which seriously affect flight safety. [0003] The airworthiness of the aircraft requires that the aircraft has the ability of anti-icing and the ability to fly safely in the icing state. Therefore, it is very important to study the influence of different climatic conditions on aircraft icing, and the influence of aircraft icing on the aerodynamic characteristics of the whole aircraft. First, the icing test is carried out in the icing wind tunnel, that is, the icing situation of the aircraft under different environme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00G06F17/50
CPCG06T17/00G06F30/15
Inventor 赵霞吴蓝图衣然徐路郭旺柳
Owner SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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