单相机迎角测量中振动影响研究
收稿日期: 2012-04-23
修回日期: 2012-06-11
网络出版日期: 2013-03-29
基金资助
国家自然科学基金(51075385)
Vibration Influence Research on Single Camera Measurement of Angle of Attack
Received date: 2012-04-23
Revised date: 2012-06-11
Online published: 2013-03-29
Supported by
National Natural Science Foundation of China (51075385)
孙岩 , 姚海艳 , 张征宇 . 单相机迎角测量中振动影响研究[J]. 航空学报, 2013 , 34(3) : 525 -532 . DOI: 10.7527/S1000-6893.2013.0088
A formula for calculating the model angle of attack with the exterior orientation elements of a camera in a single camera measurement of the angle of attack is derived from the collinearity equations which describe the relationship between the image plane coordinates and the physical space coordinates. On the assumption that spanwise coordinate Y of the targets on the model surface keeps constant in a single camera measurement of the angle of attack, the vibration influence on the model angle of attack measurement is investigated in a 2 m wind tunnel when the three angle exterior orientation elements (φ, ω, κ) and model sideslip angle β vibrated between -2° and 2° at five different camera positions. Influence simulation results show that the vibrations of φ and κ have a great influence on the angle of attack measurements, and that the influence is insensitive to the change of camera positions and model angles of attack; the vibration influence of ω and β on the angle of attack measurement is small and negligible when the camera is located at a normal projection position (i.e., the optical axis of the camera is parallel with axis Y), but the influence increases quickly as the camera location moves away from the normal projection position.
[1] Yun Q L. Data error and modification in wind tunnel test. Beijing: National Defense Industry Press, 1996. (in Chinese) 恽起麟. 风洞实验数据的误差与修正. 北京: 国防工业出版社, 1996.
[2] Zhang X D, Jiang J L, Jia Y S, et al. Videogrammetry application in wind tunnel model attitude measurement. Journal of Experiments in Fluid Mechanics, 2005, 19(3): 21-25. (in Chinese) 张孝棣, 蒋甲利, 贾元胜, 等. 视频测量方法在风洞模型姿态角测量中的应用. 实验流体力学,2005,19(3): 21-25.
[3] Sun Y, Zhang Z Y, Huang S J, et al. Vision measurement technology research for model angle of attack in wind tunnel tests. Acta Aeronautica et Astronautica Sinica, 2013, 34(1): 1-7.(in Chinese) 孙岩, 张征宇, 黄诗捷, 等. 风洞试验中模型迎角视觉测量技术研究. 航空学报, 2013, 34(1): 1-7.
[4] Owen F K, Mcdevitt T K, Morgan D G, et al. Wind tunnel model angle of attack measurements using an optical model attitude system. 38th AIAA Aerospace Sciences Meeting & Exhibit, 2000.
[5] Burner A W, Radeztsky R H, Liu T S. Videometric applications in wind tunnels. SPIE 5th Conference on Videometrics, 1997.
[6] Burner A W, Liu T. Videogrammetric model deformation measurement technique. Journal of Aircraft, 2001, 38(4): 745-754.
[7] Jones T W, Hoppe J C. Comparison of angle of attack measurements for wind tunnel testing. 39th AIAA Aerospace Sciences Meeting & Exhibit, 2001.
[8] Chen G G, Zhang Y, Zhang X Y. Laser measurement of attack angle by wind tunnel model. Journal of Dalian Railway Institute, 2002, 23(3): 46-48. (in Chinese) 陈国光, 张岩, 张心英. 风洞模型激光攻角测量. 大连铁道学院学报, 2002, 23(3): 46-48.
[9] Sun Y, Zhang Z Y, Lv B B, et al. Optical measurement experiments on T-tails flutter model and bending-torsion characteristics calculation. Journal of Experiments in Fluid Mechanics, 2012, 26(1): 100-104. (in Chinese) 孙岩, 张征宇, 吕彬彬, 等. T型尾翼颤振模型光学测量实验与弯扭特性解算. 实验流体力学, 2012, 26(1): 100-104.
[10] Zhang Z Y, Luo C, Sun Y, et al. Experimental investigation on exterior orientation in vibration environment. Journal of Experiments in Fluid Mechanics, 2011, 25(3): 56-59. (in Chinese) 张征宇, 罗川, 孙岩, 等. 振动环境中相机位置坐标与姿态角解算的实验研究. 实验流体力学, 2011, 25(3): 56-59.
[11] Zhang Z Y, Yu B, Luo C, et al. Precision investigation on model displacement videogrammetric measurement in 2.4 m transonic wind tunnel. Journal of Experiments in Fluid Mechanics, 2011, 25(4): 79-82. (in Chinese) 张征宇, 喻波, 罗川, 等. 2.4米跨声速风洞的模型位移视频测量精度研究. 实验流体力学, 2011, 25(4): 79-82.
[12] Luo C, Zhang Z Y, Sun Y, et al. Exterior orientation for videogrammetric model deformation measurement. Journal of Experiments in Fluid Mechanics, 2010, 24(6): 88-91. (in Chinese) 罗川, 张征宇, 孙岩, 等. 模型变形视频测量的相机位置坐标与姿态角确定. 实验流体力学, 2010, 24(6): 88-91.
[13] Zhang Z Y, Wang S L, Sun Y. Videogrammetric measurement for model displacement in wind tunnel test. Applied Mechanics and Materials, 2012, 130: 103-107.
[14] Bell J H, Burner A W. Data fusion in wind tunnel testing; combined pressure paint and model deformation measurements. 20th Advanced Measurement & Ground Testing Meeting, 1998.
[15] Albertani R, Stanford B, Hubner J P, et al. Aerodynamic coefficients and deformation measurements on flexible micro air vehicle wings. Experimental Mechanics, 2007, 47(5): 625-635.
[16] Black J T, Pitcher N A, Reeder M F, et al. Videogrammetry dynamics measurements of a lightweight flexible wing in a wind tunnel. Journal of Aircraft, 2010, 47(1): 172.
[17] Wang P J, Xu Y M. Photogrammetry. Wuhan: Wuhan University Press, 2005. (in Chinese) 王佩军, 徐亚明. 摄影测量学. 武汉: 武汉大学出版社, 2005.
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