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Proceedings Paper

Research of wind loading on optical window for airborne optoelectronic equipment based on CFD
Author(s): Xiaoguo Deng; Xiaoxu Yang; Gang Li; Xiaoqiang Zheng
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Paper Abstract

In order to improve the reliability and working performance of the optical window for airborne optoelectronic equipment, we conduct the aerodynamic analysis of airborne optoelectronic equipment under different flight speed, and get the aerodynamic load distribution of optical window under three different typical flight speed. By building the model of the optical window and simulating the model with the method of CFD, the deformation and stress caused by aerodynamic loading under different thickness of the optical window have been got. The results shows that the thickness of the optical window at 10mm could best meet the requirements of structural strength and quality. Then we analysis the impact of the deformation of the optical window on the imaging quality of the optical system. The deformation of the optical window is very tiny, and it is deformed from the flat into a spherical whose radius is very large. The MTF of the optical system after deformation are basically the same as its MTF before deformation. Thus, the impact of the deformation of the optical window on the imaging quality of the optical system can be ignored. The results of the analysis provide important reference for the design of the optical window for airborne optoelectronic equipment.

Paper Details

Date Published: 19 February 2015
PDF: 8 pages
Proc. SPIE 9449, The International Conference on Photonics and Optical Engineering (icPOE 2014), 94492G (19 February 2015); doi: 10.1117/12.2076597
Show Author Affiliations
Xiaoguo Deng, Xi'an Institute of Optics and Precision Mechanics (China)
Xiaoxu Yang, Xi'an Institute of Optics and Precision Mechanics (China)
Gang Li, Xi'an Institute of Optics and Precision Mechanics (China)
Xiaoqiang Zheng, Xi'an Institute of Optics and Precision Mechanics (China)
Univ. of Chinese Academy of Sciences (China)


Published in SPIE Proceedings Vol. 9449:
The International Conference on Photonics and Optical Engineering (icPOE 2014)
Ailing Tian; Anand Asundi; Weiguo Liu; Chunmin Zhang, Editor(s)

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