Design of Optical and Mechanical Structure for Lunar Simulator Based on Variable Shape and Adjustable Radiance
doi: 10.11728/cjss2015.05.647
Design Of Optical And Mechanical Structure For Lunar Simulator Based On Variable Shape And Adjustable Radiance
-
摘要: To simulate the different lunar phases and ensure continuous adjustability of the radiant brightness, a new broad spectrum light and frosted glass were applied and designed in the optical system for lunar simulator with the shapes and radiance being able to be adjusted. According to the engineering demand and index requirements of the optical system, three major design aspects are addressed, including the high reliability and maintainability for broad-spectrum light, heat dissipation in lunar simulator for long working hours, and bearing of the main frame under different working conditions. By designing a reasonable machine structure, and through the structure itself with the matrix arrangement of 48 axial flow fans, an effectively cooling air duct is established. Deformation and temperature were calculated by the finite element software ANSYS. The results showed that the displacement deformation reached 0.33mm and stress deformation reached 0.02MPa at the temperature of 20℃; when the main frame was in the temperature field between 20℃ and 65℃, the maximum displacement deformation reached 13.30mm and maximum stress deformation is 97.90MPa, and the amount of this deformation is very small in considering of the mechanical structure dimensions and weight of the lunar simulator.Abstract: To simulate the different lunar phases and ensure continuous adjustability of the radiant brightness, a new broad spectrum light and frosted glass were applied and designed in the optical system for lunar simulator with the shapes and radiance being able to be adjusted. According to the engineering demand and index requirements of the optical system, three major design aspects are addressed, including the high reliability and maintainability for broad-spectrum light, heat dissipation in lunar simulator for long working hours, and bearing of the main frame under different working conditions. By designing a reasonable machine structure, and through the structure itself with the matrix arrangement of 48 axial flow fans, an effectively cooling air duct is established. Deformation and temperature were calculated by the finite element software ANSYS. The results showed that the displacement deformation reached 0.33mm and stress deformation reached 0.02MPa at the temperature of 20℃; when the main frame was in the temperature field between 20℃ and 65℃, the maximum displacement deformation reached 13.30mm and maximum stress deformation is 97.90MPa, and the amount of this deformation is very small in considering of the mechanical structure dimensions and weight of the lunar simulator.
-
[1] Zheng R, Zhang G Y, Zhang J, et al. Optical system design of the moon simulator based on real moon radiance [J]. Chin. J. Sci. Inst., 2014, 35(9):2116-2122 [2] Zhao SH F, Wang Y, Wang H T, et al. Research on space luminous environment of missile-borne star sensor [J]. Trans. Beijing Inst. Tech., 2012, 32(7):729-734 [3] Su S, An Z Y, Zhang G Y, et al. The research of the moon simulator for autonomous navigation experiment [C]//2009 China Instrument and Control Technology Conference Proceedings, 2009:600-604 [4] Chen B Q, Xing J. The standard data of solar constant and solar spectral irradiance outside the Earth's atmosphere [J]. J. Beijing Univ., 1978, 02:80-86 [5] Chen J Y, Zhang C Y, Dang Y M. Lunar spatial exploration, surveying and mapping [J]. Acta Geod. Cartogr. Sin., 2005, 34(3):189-195 -
点击查看大图
计量
- 文章访问数: 789
- HTML全文浏览量: 0
- PDF下载量: 1860
- 被引次数: 0
下载:
