18 July 2014 Optimized analysis of geometry parameters for honeycomb sandwich mirror
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The relationship of geometry parameters, specific stiffness, surface figure and natural frequency was investigated based on modified Gibson theory, sandwich theory, Hoff theory and vibration theory. By theoretical analysis and finite element method, we demonstrated the geometric parameters had non-linear influence on dimensionless specific stiffness in different directions with the honeycomb core was equivalent as modified solid material. Approximate expressions of deformation, natural frequency and geometric parameters were obtained. The results showed the optimal solidity ratio and face plate thickness ratio were in the range of 0.03 ~ 0.1 and 0.02 ~0.05, respectively.
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Xiao'an Chen, Xiao'an Chen, Yuntao Cheng, Yuntao Cheng, Qingna Zeng, Qingna Zeng, Hong Liu, Hong Liu, Jingzhong Fang, Jingzhong Fang, Changhui Rao, Changhui Rao, "Optimized analysis of geometry parameters for honeycomb sandwich mirror", Proc. SPIE 9151, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation, 91513H (18 July 2014); doi: 10.1117/12.2055298; https://doi.org/10.1117/12.2055298

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