Application substructure model synthesis method on modeling of a space camera

De-wei Sun; Tianjin Tang; Yong-jian Wu; Jia-wen Yang

doi:10.1117/12.2071430

18 November 2014 Application substructure model synthesis method on modeling of a space camera

De-wei Sun, Tianjin Tang, Yong-jian Wu, Jia-wen Yang

Proceedings Volume 9298, International Symposium on Optoelectronic Technology and Application 2014: Imaging Spectroscopy; and Telescopes and Large Optics; 92981D (2014) https://doi.org/10.1117/12.2071430
Event: International Symposium on Optoelectronic Technology and Application 2014, 2014, Beijing, China

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.

Citation Download Citation

De-wei Sun, Tianjin Tang, Yong-jian Wu, and Jia-wen Yang "Application substructure model synthesis method on modeling of a space camera", Proc. SPIE 9298, International Symposium on Optoelectronic Technology and Application 2014: Imaging Spectroscopy; and Telescopes and Large Optics, 92981D (18 November 2014); https://doi.org/10.1117/12.2071430

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available