Title :
Design for main support of long focal length space camera
Author_Institution :
Beihua Univ., Jilin, China
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;
Conference_Titel :
Mechatronic Science, Electric Engineering and Computer (MEC), 2011 International Conference on
Conference_Location :
Jilin
Print_ISBN :
978-1-61284-719-1
DOI :
10.1109/MEC.2011.6025515
