Design of Long Focal Length Space Remote Sensors Main Support Structure
A kind of space optical remote sensor (SORS) with 7m focal length and a relative aperture 1:6 was designed. A 4-layer multi- truss was used in the main support structure of the SORS, thus resolving the difficulty of long focal length SORS having high stiffness and thermal dimensional stability. The results of engineering analysis indicated that the surface profile accuracy of the mirrors rach to A/10 P-V, λ/50 RMS with the working circumstances ± 4 ℃ uniform temperature change and space micro-gravity, the base frequency of the structure was 81 Hz. It shows that the designed main support structure has sufficiently high dynamic and static stiffness and thermal dimensional stability. Utilization of the Finite Element Analysis (FEA) technique was a key factor in meeting all of the challenging requirements.
space optical remote sensor support structure finite element analysis demensional stability truss
Yingjun Guan Deqiang Mu Hongwei Xin
School of Mechatronic Engineering Changchun University of Technology Changchun,China Department of Space Optics CIOMP Changchun,China
国际会议
长春
英文
211-214
2010-08-24（万方平台首次上网日期，不代表论文的发表时间）