A method of CAE for calculating the temperature tolerance of telescope

Author

Xie, Shaowang ; Zhu, Xiaoming ; Li, Qingfen ; Chen, Changzheng

Author_Institution

Eng. Training Center, Harbin Eng. Univ., Harbin, China

fYear

2009

fDate

9-12 Aug. 2009

Firstpage

3459

Lastpage

3463

Abstract

In order to obtain high quality pictures, the thermal design is necessary for the space telescope. The designed temperature scope should meet to the permissible temperature tolerance of the telescope. A method for calculating the permissible temperature tolerance of the telescope is studied. The calculating temperature tolerance will be targeted for space thermal environment adaptive structure design and thermal design. A method for describing the temperature fields of the telescope is introduced. The descriptive temperature fields are able to include every temperature states that the telescope endured on orbit. When the MTF (Modulation Transfer Function) just meet to the optical indicator, the ultimate temperature tolerance of the space telescope is obtained, that is, the aim temperature scope for the thermal design is obtained.

Keywords

astronomical telescopes; astronomy computing; computer aided engineering; optical transfer function; CAE method; modulation transfer function; optical indicator; space telescope; space thermal environment adaptive structure design; temperature tolerance calculation; thermal design; Computer aided engineering; Optical design; Optical distortion; Optical sensors; Space missions; Surface fitting; Telescopes; Temperature sensors; Thermal expansion; Thermal loading; CAE; space telescope; temperature scopes; temperature tolerance; tolerance;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechatronics and Automation, 2009. ICMA 2009. International Conference on

Conference_Location

Changchun

Print_ISBN

978-1-4244-2692-8

Electronic_ISBN

978-1-4244-2693-5

Type

conf

DOI

10.1109/ICMA.2009.5246339

Filename

5246339