Share Email Print
cover

Proceedings Paper

Application substructure model synthesis method on modeling of a space camera
Author(s): De-wei Sun; Tianjin Tang; Yong-jian Wu; Jia-wen Yang
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Space infrared sensor must be assembled on a small satellite platform, so its whole mass and structure dimensions are strictly restricted by the satellite platform. The mechanical structure must be compacted, light, handy and reliable. Task of space infrared sensor structure system is to integrate each parts of system and provide a stable and reliable work platform for the whole body. The transfer functions of flexible object and base are analyzed by using mechanical impedance method and compared with stiffness models. It indicates that space infrared sensor must be considered the flexible body influence for transfer function on some certain conditions. Using second order Krylov method expresses multi-DOF flexible substructure, which combines with modal synthesis method to model and analyze two substructures connecting with springs and dampers. Compared with direct FEM arithmetic, it can improve the calculation efficiency and handle variable-rate stiffness and damping model or complex stiffness model of flexible connection, which is cannot do for common commercial FEM software.

Paper Details

Date Published: 18 November 2014
PDF: 5 pages
Proc. SPIE 9298, International Symposium on Optoelectronic Technology and Application 2014: Imaging Spectroscopy; and Telescopes and Large Optics, 92981D (18 November 2014); doi: 10.1117/12.2071430
Show Author Affiliations
De-wei Sun, Beijing Institute of Space Mechanics and Electricity (China)
Tianjin Tang, Beijing Institute of Space Mechanics and Electricity (China)
Yong-jian Wu, Beijing Institute of Space Mechanics and Electricity (China)
Jia-wen Yang, Beijing Institute of Space Mechanics and Electricity (China)


Published in SPIE Proceedings Vol. 9298:
International Symposium on Optoelectronic Technology and Application 2014: Imaging Spectroscopy; and Telescopes and Large Optics
Jannick P. Rolland; Changxiang Yan; Dae Wook Kim; Wenli Ma; Ligong Zheng, Editor(s)

© SPIE. Terms of Use
Back to Top