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Wind tunnel test attack angle mechanism pose parameter tracing method

A technology of angle of attack mechanism and pose parameters, which is applied in the field of traceability of the position and orientation parameters of the angle of attack mechanism in wind tunnel tests, and can solve the problems of no traceability and evaluation methods and means, and no traceability method formed.

Active Publication Date: 2021-07-23
中国空气动力研究与发展中心设备设计与测试技术研究所
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AI Technical Summary

Problems solved by technology

At present, there is no effective traceability and evaluation method and means for the wind tunnel test angle of attack mechanism, nor has a complete traceability method been formed

Method used

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  • Wind tunnel test attack angle mechanism pose parameter tracing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0067] A method for tracing the source of pose parameters of an angle-of-attack mechanism in a wind tunnel test, comprising the following steps:

[0068] a. Use laser tracker, laser total station, angle sensor, dual-frequency laser interferometer or micrometer, and micrometer indicator to directly measure the source of the pose parameters of the wind tunnel test angle of attack mechanism;

[0069] b. Measure the actual rotation, yaw or pitch angle value of the angle of attack mechanism, and calculate the angle error, that is, the difference between the measured angle value and the given angle value caused by the inaccurate control system;

[0070] c. After controlling the angle of attack mechanism to repeatedly rotate a given angle in the same direction, calculate the angle error of each time, calculate the standard deviation according to the range method, and determine the angle measurement repeatability of the angle of attack mechanism;

[0071] d. Determine the difference b...

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PUM

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Abstract

The invention provides a wind tunnel test attack angle mechanism pose parameter tracing method, and the method comprises the steps: according to the working principle of a wind tunnel test attack angle mechanism, combining the actual working conditions of the wind tunnel test attack angle mechanism in low-speed, high-speed and ultra-high-speed wind tunnels, a calibration device composed of a laser tracker, a laser total station, an angle sensor, a double-frequency laser interferometer or micrometer, a micrometer indicator and the like tracing the pose parameters of the wind tunnel test attack angle mechanism by adopting a direct measurement method, analyzing and evaluating the uncertainty of the measurement results of the displacement and angle of the wind tunnel test attack angle mechanism, accurately evaluating the technical performance of the wind tunnel test attack angle mechanism, and realizing the value traceability of the wind tunnel test attack angle mechanism.

Description

technical field [0001] The invention relates to the technical field of metrology and testing, in particular to a method for tracing the source of pose parameters of an angle of attack mechanism in a wind tunnel test. Background technique [0002] The wind tunnel test angle of attack mechanism refers to a special mechanism used to support the attitude change and positioning of the test object (aircraft model or real object) in the wind tunnel test, such as the CTS device, the machete device, the moving frame, etc., generally composed of the drive device, Control device, mobile device, etc. The accelerated research and development and substantial growth of our army's weapons and equipment, such as air combat equipment, long-range precision strike equipment, aerospace equipment, air defense and anti-missile equipment, etc., have put forward higher and higher requirements for aerodynamic test technology. The acquisition of performance indicators must be carried out in the wind ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/06
CPCG01M9/06
Inventor 赵少美黄志阳祝静邰中奎刘杰伟贾琦赵栩欣
Owner 中国空气动力研究与发展中心设备设计与测试技术研究所
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