Lightweight Design and Evaluation of Square Reflector
Source abstract
Abstract
In order to reduce the weight of optical elements in space remote sensors while increasing their stiffness, this paper takes an off-axis system secondary mirror as an example to design a square mirror with a size of 500 mm × 500 mm. The mirror adopts ultra-low expansion glass as the raw material. The paper proposed a lightweight form of gradual reinforcement and conducted the mirror assembly simulation analysis. The analysis results show that the weight of the lightweight mirror is 13.6 kg, and the surface density can reach 54.4 kg/m2. Under the circumstances of 1 g gravity and the temperature change of 15 °C~25 °C, the surface shape accuracy of the mirror assembly can reach 1/90λ (λ = 632.8 nm). Through the final testing, the first-order intrinsic frequency of the reflex mirror components is 167.8 Hz. The gap between the test results and the theoretical simulation results is less than 3%, which proves that the mirror assembly in the lightweight form of gradual reinforcement fully meets the index requirements and can provide a theoretical reference for the assembly of a mirror of similar size and type.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Optical Systems and Laser Technology · Adaptive optics and wavefront sensing · Advanced optical system design
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute of Optoelectronic, Xi’an Technological University, Xi’an 710021, China
Zhongshan Institute of Changchun University of Science and Technology, Changchun 528437, China
Funding
Basic Research · Shaanxi Provincial Science and Technology Department
References (21)
Show source-provided references
1. Stahl, H.P., Postman, M., Mosier, G., Smith, W.S., Blaurock, C., Ha, K., and Stark, C.C. (2014, January 22–27). AMTD: Update of engineering specifications derived from science requirements for future UVOIR space telescopes. Proceedings of the SPIE Astronomical Telescopes + Instrumentation, Montréal, QC, Canada.10.1117/12.2054766 ↗
2. Miller, D.W., de Weck, O.L., and Mosier, G.E. (2002, January 5–7). Framework for multidisciplinary integrated model-ing and analysis of space telescopes. Proceedings of the Workshop on Integrated Modeling of Telescopes. International Society for Optics and Photonics, Lund, Sweden.10.1117/12.489831 ↗
3. Uebelhart, S.A. (2006). Non-Deterministic Design and Analysis of Parameterized Optical Structures during Conceptual Design. [Ph.D. Thesis, Massachusetts Institute of Technology].
4. Stray light suppression of off-axis triple mirror space optical telescope systems
5. Krödel, M.R., and Hofbauer, P. (July, January 27). Ultra-lightweighted HB-Cesic one-meter mirror demonstrator. Proceedings of the SPIE Astronomical Telescopes + Instrumentation, San Diego, CA, USA.
6. Space telescope aspherical mirror structure design based on SiC material
7. Design of the strip SiC mirror supporting structure and lightweight
8. Stahl, H.P. (2014, January 5–9). Advanced Mirror Technology Development for Very Large Space Telescopes. Proceedings of the 223rd American Astronomical Society Meeting, National Harbor, MD, USA.
9. Egerman, R., Matthews, G., Wynn, J., Kirk, C., and Havey, K. (2009). Astro2010: The Astronomy and Astrophysics Decadal Survey, NASA.
10. Stahl, H.P. (July, January 26). Advanced Mirror Technology Development (AMTD) Project: Overview and Year Four Accomplishments. Proceedings of the SPIE Astronomical Telescopes + Instrumentation, Edinburgh, UK.
11. Bittner, H., Erdmann, M., and Haberler, P. (2002, January 22–23). SOFIA Primary Mirror Assembly: Structural Properties and Optical Performance. Proceedings of the Astronomical Telescopes and Instrumentation, Waikoloa, HI, USA.10.1117/12.458636 ↗
12. Parks, R.E., Wortley, R.W., and Cannon, J.E. (1990, January 11–16). Engineering with lightweight mirrors. Proceedings of the SPIE Astronomical Telescopes and Instrumentation for the 21st Century, Tucson, AZ, USA.
13. Anderson, D., Parks, R.E., Hansen, Q.M., and Melugin, R. (1982, January 11–13). Gravity denections of lightweighted mirrors. Proceedings of the International Conference on Advanced Technology Optical Telescopes, Tucson, AZ, USA.
14. Friedman, E. (2003). Photonjcs Rules of Thumb, McGraw Hill.
15. Structural design of 1 m diameter space mirror component of space camera10.3788/OPE.20132106.1488 ↗
16. Optimized design of structure parameters for large aperture mirrors
17. Structural design of 1.5 m mirror subassembly for space camera10.3788/OPE.20152306.1635 ↗
18. Development of space-based large aperture mirror support technology10.3788/IRLA201847.1113001 ↗
19. Design and analysis for primary mirror and its support of space camera
20. Zhu, N. (2016). Research on the Design of the Supporting Structure of Lightweight Mirror. [Ph.D. Thesis, University of Chinese Academy of Sciences]. (In Chinese).
21. Composite support structure of large aperture mirror of space remote sensor10.3788/OPE.20162407.1719 ↗