Design for main support of long focal length space camera

Author

Gan Xinji

Author_Institution

Beihua Univ., Jilin, China

fYear

2011

fDate

19-22 Aug. 2011

Firstpage

515

Lastpage

518

Abstract

In order to improve the stiffness and reduce the weight of the main support structure of space camera, some problems in the truss design were taken into account in this paper. A 4-layer multi-truss made of carbon fiber composite was used in the main support structure for designing a kind of space camera with 7m focal length, relative aperture 1:6. The angles between trusses, pole cross section and pole connector were designed in detailed. A finite element analysis method is employmented to analyzed the structural characteristic of the main support structure, which materials include M40 carbon fiber composite materials, SiC/A and TC4 etc. The results of analysis indicates that the weight of the main truss support structure is only 318 kilograms weight, 80 Hz for the first-order natural frequency, which can meet the requirements of the space camera specifications.

Keywords

aerospace components; cameras; carbon fibre reinforced composites; design engineering; elasticity; finite element analysis; structural engineering; supports; 4-layer multitruss; M40 carbon fiber composite materials; finite element analysis method; frequency 80 Hz; long focal length space camera; main support design; main support structure; mass 318 kg; stiffness; truss design; Cameras; Carbon; Finite element methods; Materials; Mirrors; Thermal stability; Vibrations; finite element analysis; main support; space camera; truss;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechatronic Science, Electric Engineering and Computer (MEC), 2011 International Conference on

Conference_Location

Jilin

Print_ISBN

978-1-61284-719-1

Type

conf

DOI

10.1109/MEC.2011.6025515

Filename

6025515