Aero-engine distortion generating device

A technology of aero-engine and generating device, which is applied in the testing of engines, measuring devices, and testing of machine/structural components, etc., and can solve problems such as fixing the configuration of distortion nets

Active Publication Date: 2021-05-14
AECC SHANGHAI COMML AIRCRAFT ENGINE MFG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the configuration of the distortion grid in the traditional scheme is fixed, generally concentric circle configuration. To adapt to the requirements of different inflow conditions, it is necessary to redesign the distortion grid with different configurations and reinstall it.

Method used

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  • Aero-engine distortion generating device
  • Aero-engine distortion generating device

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Embodiment Construction

[0043] Specific implementations of the present invention will be described below. It should be noted that in the process of specific descriptions of these implementations, for the sake of concise description, it is impossible for this specification to describe all the features of the actual implementations in detail. It should be understood that, in the actual implementation process of any embodiment, just like in the process of any engineering project or design project, in order to achieve the developer's specific goals and to meet system-related or business-related constraints, Often a variety of specific decisions are made, and this can vary from one implementation to another. In addition, it will be appreciated that while such development efforts may be complex and lengthy, the technology disclosed in this disclosure will be Some design, manufacturing or production changes based on the content are just conventional technical means, and should not be interpreted as insuffic...

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Abstract

The invention relates to an aero-engine distortion generating device. The aero-engine distortion generating device comprises an elastic metal wire, a steering engine and a control system, the steering engine and the control system are arranged in an inner flow channel wall of an air inlet casing of the aero-engine, and the steering engine comprises a steering engine arm. The metal wire is wound into a spiral structure, most of the metal wire is arranged between the inner flow channel wall and the outer flow channel wall of the aero-engine air inlet casing, the inner end of the metal wire penetrates through an opening in the inner flow channel wall to be connected to the steering engine arm, and the outer end of the metal wire is fixed to the outer flow channel wall. The control system communicates with the steering engine to control the steering engine arm to swing, so that the inner end of the metal wire is pulled or pushed, and the radial distribution density of the metal wire is changed. The device has the following beneficial technical effects that the distortion net configuration can be adjusted according to different incoming flow condition requirements of the aero-engine, so that the radial distribution rule of different total pressures can be simulated.

Description

technical field [0001] The invention relates to the technical field of aero-engine testing, in particular to an aero-engine distortion generating device. Background technique [0002] In the aero-engine test, in order to simulate the uneven inlet and flow conditions of the actual aero-engine under atmospheric air intake conditions, a set of distortion generating devices (also called distortion nets) is usually placed at the inlet section of the engine to simulate the The distribution form of the inlet dimensionless total pressure along the radial direction under the design state of the engine. [0003] Traditionally, the radial total pressure distortion generating device is designed by arranging metal wires of different diameters at different positions along the radial direction. The design principle is to use the airflow to flow through metal wires of different diameters to produce different flow losses, and arrange the metal wires radially according to certain rules, so t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M15/02
CPCG01M15/02
Inventor 刘鹏闫转运强艳曹传军吴志青
Owner AECC SHANGHAI COMML AIRCRAFT ENGINE MFG CO LTD
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