Thermal Stability Design of Asymmetric Support Structure for an Off-Axis Space Camera

doi:10.3390/app11115184

CIOMP OpenIR

	Thermal Stability Design of Asymmetric Support Structure for an Off-Axis Space Camera
	W. Y. Song; P. Xie; S. Liu and Y. Q. Xie
	2021
发表期刊	Applied Sciences-Basel
卷号	11 期号:11 页码:14
摘要	With the development of space optical remote sensing technology, especially off-axis space cameras, the thermal dimensional stability of the support structure has become increasingly demanding. However, the asymmetry of the camera structure has not been fully considered in the past design of the thermal stability of off-axis cameras. In order to solve this problem, a support structure with very low thermal deformation in the asymmetric direction is presented in this paper for an off-axis TMA camera. By means of the negative axial thermal expansion coefficient of carbon-fiber-reinforced plastics (CFRP), a composite laminate with near zero-expansion was obtained by adjusting the direction of fiber laying, and the asymmetric feature of the off-axis remote sensing camera structure was fully considered, thus enabling the support structure to have good thermal dimensional stability. We carried out a thermal load analysis and an optical analysis of the whole camera in the case of a temperature rise of 5 degrees C. The results show that the zero-expansion support structure has good thermal stability, and the thermal deformation in the asymmetric direction of the camera is obviously smaller than that of the isotropic laminate support structure. Compared with the isotropic support structure, the influence of thermal deformation on MTF is reduced from 10.43% to 2.61%. This study innovatively incorporates the asymmetry of the structure into the thermal sta-bility design of an off-axis TMA camera and provides a reference for the thermal stability design of other off-axis space cameras.
DOI	10.3390/app11115184
URL	查看原文
收录类别	SCI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/65693
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	W. Y. Song,P. Xie,S. Liu and Y. Q. Xie. Thermal Stability Design of Asymmetric Support Structure for an Off-Axis Space Camera[J]. Applied Sciences-Basel,2021,11(11):14.
APA	W. Y. Song,P. Xie,&S. Liu and Y. Q. Xie.(2021).Thermal Stability Design of Asymmetric Support Structure for an Off-Axis Space Camera.Applied Sciences-Basel,11(11),14.
MLA	W. Y. Song,et al."Thermal Stability Design of Asymmetric Support Structure for an Off-Axis Space Camera".Applied Sciences-Basel 11.11(2021):14.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Thermal Stability De（4847KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载