Design method for comprehensively inhibiting infrared and electromagnetic signal features of aero-engine

An aero-engine and electromagnetic signal technology, which is applied in computer-aided design, design optimization/simulation, calculation, etc., can solve the problem that aircraft and engine infrared and electromagnetic signal characteristics are large, and engine design schemes that do not consider engine infrared and electromagnetic signal characteristics are formed. Affects the infrared/electromagnetic signal characteristics of combat aircraft and engines, and achieves the effect of small electromagnetic signal characteristics

Active Publication Date: 2021-09-07
AECC SHENYANG ENGINE RES INST
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Benefits of technology

This patented technology solves problems with reducing unwanted signals from certain areas on wings by integrating it into existing systems for monitoring temperatures inside vehicles or other structures during flight operations. By doing this, these technologies help prevent damage caused by excessive heating without affecting their performance.

Problems solved by technology

The technical problem addressed by this patented technology relates to improving military defense capabilities without compromising their ability to detect enemy fire or other threatening situations during flight operations due to increased sensitivity towards infra-Red (IR) radiation from weapons systems on modern warplanes.

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  • Design method for comprehensively inhibiting infrared and electromagnetic signal features of aero-engine
  • Design method for comprehensively inhibiting infrared and electromagnetic signal features of aero-engine
  • Design method for comprehensively inhibiting infrared and electromagnetic signal features of aero-engine

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Embodiment Construction

[0038] In order to make the objectives, technical solutions and advantages of the implementation of the application clearer, the technical solutions in the implementation modes of the application will be described in more detail below with reference to the drawings in the implementation modes of the application. 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 present application. The embodiments described below by referring to the figures are exemplary and are intended to explain the present application, and should not be construed as limiting the present application. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the scope of protection of this application. Embodiments of the prese

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Abstract

The invention belongs to the field of aircraft engine design, and relates to a design method for comprehensive suppression of infrared and electromagnetic signal features of an aero-engine. The method comprises the following steps: acquiring an infrared signal radiation intensity target value and an electromagnetic signal RCS target value; determining the average temperature T1, meeting the infrared signal radiation intensity target value, of the visible area of the rear cavity of the engine; determining the cooling flow W1 of the visible part of the rear cavity of the engine according to the average temperature T1; determining an engine cooling channel structure and an opening cooling form which meet the temperature reduction requirement; by electromagnetic simulation calculation, determining angle combinations of multiple groups of typical parts of the engine meeting the requirement that the electromagnetic signals are not higher than the RCS target value of the electromagnetic signals; and by iterative optimization, determining the angle combination of the typical parts of the engine with the minimum electromagnetic signal under the condition of engine thrust. According to the invention, the problem of comprehensive suppression of the infrared and electromagnetic signal characteristics of the engine is solved, so that the infrared signals of the engine are lower and the electromagnetic signal characteristics are smaller.

Description

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Claims

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Application Information

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Owner AECC SHENYANG ENGINE RES INST
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