Optimization design for the supporting system of 2m telescope primary mirror

Fu Zhao; Ping Wang; Yanjue Gong; Li Zhang; Jianlong Lin

doi:10.1117/12.806704

27 January 2009 Optimization design for the supporting system of 2m telescope primary mirror

Fu Zhao, Ping Wang, Yanjue Gong, Li Zhang, Jianlong Lin

Proceedings Volume 7156, 2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments; 71561T (2009) https://doi.org/10.1117/12.806704
Event: International Conference of Optical Instrument and Technology, 2008, Beijing, China

Abstract

This paper describes the optimization solution improving the total quality of the primary mirror supporting type. With the methods of Finite element analysis(FEA), Orthogonal experiment and BP Neural Network, the relationship between the structure parameters in primary mirror supporting type and the deformation of the primary mirror is built. With this relationship and Genetic Algorithm(GA) optimization design, a group of reasonable technology parameters is found that can improve the static stiffness of the primary mirror supporting type so as to reduce the gravity deformation of the primary mirror. The modal analysis and random vibration analysis are also discussed in detail, and the results indicate that the dynamic stiffness of the primary mirror supporting type is also improved.

Citation Download Citation

Fu Zhao, Ping Wang, Yanjue Gong, Li Zhang, and Jianlong Lin "Optimization design for the supporting system of 2m telescope primary mirror", Proc. SPIE 7156, 2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments, 71561T (27 January 2009); https://doi.org/10.1117/12.806704

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