Structural design and optimization of reflectors for Space High-cadence Observing Telescope (SHOT)

Mingzhu Zhang; Ran Duan; Di Li; Xiaohang Zhang; Fei Liu; Yu Wang; Xiaoyun Ma; Ruirui Fan; Xiaohui Yan; Shiling Yu; Jing Yang

doi:10.1117/12.3018246

26 August 2024 Structural design and optimization of reflectors for Space High-cadence Observing Telescope (SHOT)

Mingzhu Zhang, Ran Duan, Di Li, Xiaohang Zhang, Fei Liu, Yu Wang, Xiaoyun Ma, Ruirui Fan, Xiaohui Yan, Shiling Yu, Jing Yang

Author Affiliations +

Proceedings Volume 13100, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI; 1310050 (2024) https://doi.org/10.1117/12.3018246
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

The Space High-cadence Observing Telescope (SHOT) is proposed to operate at the frequency band of 1 ∼ 3 THz. It will have a wide field of view to achieve a large sky area imaging survey and gather more information about the dynamic universe. A prototype telescope with 500 mm aperture will be established and tested at the preliminary stage. The telescope adopts a dual-reflector system. Considering the lightweight design, topology optimization of three cases of reflectors with aluminum, SiC and CFRP are carried out to supply a reference of the initial structure design and material option. In the initial design, the aluminum secondary reflector is supported by a steel cylinder and connected to the support structure of the main reflector using steel tripods. The back side of the main reflector is mostly distributed with triangular holes and supported through three points. The main reflector adopts SiC. To further improve the performance, the multiple-objective size optimization is conducted according to the finite element analysis results. The total weight of the optimal structure is only 8.62 kg, 31% less than the initial design. The surface deformation rms is 2.18 μm by loading gravity and 50 K temperature difference. The stiffness of the structure is also sufficient.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Mingzhu Zhang, Ran Duan, Di Li, Xiaohang Zhang, Fei Liu, Yu Wang, Xiaoyun Ma, Ruirui Fan, Xiaohui Yan, Shiling Yu, and Jing Yang "Structural design and optimization of reflectors for Space High-cadence Observing Telescope (SHOT)", Proc. SPIE 13100, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI, 1310050 (26 August 2024); https://doi.org/10.1117/12.3018246

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