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Icing-deicing process force measurement test device

A force measurement test and electrothermal deicing technology, which is applied in the field of wind tunnel force measurement test, can solve problems such as no public report on research work, and achieve good experimental results, improve accuracy and reduce errors.

Active Publication Date: 2015-07-08
LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Developed countries have always wanted to use the icing wind tunnel to explore the experimental research on the aerodynamic measurement of the icing process of aircraft components, but there has been no public report on the research work in this area

Method used

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  • Icing-deicing process force measurement test device
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  • Icing-deicing process force measurement test device

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Embodiment Construction

[0026] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0027] Such as figure 1 As shown, the present invention includes an experimental model, an electric deicing device, an external balance, a heat insulation device, a protective cover and a cover plate; the cover plate is provided with a through hole, and the protective cover is a circular cover structure, and the circular cover is inverted. Buckled on the through hole and fixed together with the cover plate by screws; the external balance is a tower-type cylindrical series structure, and the inside of the balance is a hollow structure, and the top of the balance is fixedly connected with the cover surface of the protective cover. The lower end of the balance is inserted into the through hole of the cover plate and is fixedly connected with the cover plate; the lower end of the balance is provi...

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Abstract

The invention discloses an icing-deicing process force measurement test device which comprises an experiment model, an electric heating deicing device, an external balance, a heat insulation device, a protecting shell and a cover plate. The device is based on an icing wind tunnel experiment platform. By arranging the electric heating deicing device in the experiment model, a deicing process is simulated, deicing of the surface of the model is achieved, the external force measuring balance which is calibrated in a low-temperature high-humidity environment is used, and changing of experiment model pneumatic parameters during an icing / deicing process is measured. The main function of the device is that force measuring experiment sturdy during the icing / deicing process of a plane part is carried out.

Description

technical field [0001] The invention relates to the field of wind tunnel dynamometer tests, in particular to a test device used in icing wind tunnels for dynamometric experiment research on the process of icing / deicing. Background technique [0002] At present, research on the influence of icing on the aerodynamic force / moment of aircraft components is usually carried out in conventional low-speed wind tunnels, provided that the real and accurate icing shape must be obtained in the icing wind tunnel and made into full-scale or scaled-down models The ice mold of the size is installed on the surface of a clean airfoil for routine low-speed wind tunnel experiments. Therefore, accurate measurement and simulation of the icing shape is the key, but due to the limitations of experimental techniques and differences in the level of researchers, it is not always possible to obtain completely accurate icing shapes and ice models, which leads to differences in experimental research resu...

Claims

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Application Information

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IPC IPC(8): G01M9/00
Inventor 肖春华李晓华李明沈志洪马军
Owner LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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