基于彩色编码的副油箱风洞模型位姿测量方法

doi:10.7527/S1000-6893.2014.0202

固体力学与飞行器总体设计

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基于彩色编码的副油箱风洞模型位姿测量方法

刘巍, 尚志亮, 马鑫, 张洋, 李肖, 贾振元

大连理工大学机械工程学院, 大连 116033

收稿日期:2014-05-20 修回日期:2014-08-29 出版日期:2015-05-15 发布日期:2014-09-01
通讯作者: 刘巍Tel.: 0411-84708159 E-mail: lw2007@dlut.edu.cn E-mail:lw2007@dlut.edu.cn
作者简介:刘巍男, 博士, 副教授, 博士生导师。主要研究方向: 精密测控、压电传感器与执行器。 Tel: 0411-84708159 E-mail: lw2007@dlut.edu.cn
基金资助:
国家自然科学基金 (51375075);国家自然科学基金创新研究群体科学基金 (51321004)

Position and attitude measuring method of auxiliary fuel tank based on color-coding in wind tunnel

LIU Wei, SHANG Zhiliang, MA Xin, ZHANG Yang, LI Xiao, JIA Zhenyuan

College of Mechanical Engineering, Dalian University of Technology, Dalian 116033, China

Received:2014-05-20 Revised:2014-08-29 Online:2015-05-15 Published:2014-09-01
Supported by:
National Natural Science Foundation of China (51375075); Science Fund for Creative Research Groups of the National Natural Science Foundation of China (51321004)

摘要/Abstract

摘要：

高速飞行器副油箱分离位姿参数是飞行器以及副油箱设计的重要基础数据。位姿参数测量工作多在高度模拟飞行器飞行状态的风洞环境下进行,对缩比模型实施高速非接触测量。受风洞试验段观察视窗限制以及副油箱模型形状影响,副油箱模型位姿测量十分困难。首先针对风洞观察视窗以及风洞复杂环境对图像采集效果的影响,提出了基于自发光单元的副油箱运动序列图像采集方法,采用双目视觉系统高速采集获得目标物的清晰序列图像;其次,提出基于环绕式彩色编码的自发光标记点匹配方法,实现风洞复杂环境内标记点的高精度匹配;最后,根据副油箱表面合作标记点的三维坐标获取副油箱模型的位姿信息。试验结果表明:所提出的位姿测量方法满足测量要求,其最大位移误差不超过0.102 mm、最大角度误差不超过0.201°。

关键词: 双目视觉, 副油箱, 彩色编码, 位姿测量, 风洞

Abstract:

Position and attitude parameters measured during the separation of fuel tanks from the high-speed flying aircraft are of great importantance in aircraft and auxiliary fuel tanks design. Pose parameter measuring needs to be carried out in wind tunnel environments with airflows in which highly simulated aircraft is flying, utilizing a high-speed non-contact measurement. The measurement of target position and attitude becomes even difficult due to the constraints from the observing window and shape of the target. To reduce impacts from the observing window and the complex wind tunnel environment on the quality of captured images, an image acquisition method based on self-luminous units has been proposed, through which a clearer image sequence has been obtained. Moreover, a markers matching method based on the surrounding color-coding self-luminous units is presented to achieve high-precision matching of markers in complex wind tunnel environment. Finally, pose parameters of the auxiliary fuel tank can be calculated by analyzing the 3D coordinates of markers on the surface of the model. The experimental results indicate that the proposed method satisfies the measurement requirements, the maximum displacement error does not exceed 0.102 mm and the maximum angle error is less than 0.201°.

Key words: binocular vision, auxiliary fuel tank, color-coding, position and attitude measurement, wind tunnel

中图分类号:

V211.7

刘巍, 尚志亮, 马鑫, 张洋, 李肖, 贾振元. 基于彩色编码的副油箱风洞模型位姿测量方法[J]. 航空学报, 2015, 36(5): 1556-1563.

LIU Wei, SHANG Zhiliang, MA Xin, ZHANG Yang, LI Xiao, JIA Zhenyuan. Position and attitude measuring method of auxiliary fuel tank based on color-coding in wind tunnel[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2015, 36(5): 1556-1563.

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E-mail：hkxb@buaa.edu.cn

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基于彩色编码的副油箱风洞模型位姿测量方法

Position and attitude measuring method of auxiliary fuel tank based on color-coding in wind tunnel

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