TY - GEN
T1 - Research on new-style flexure supports method for large-aperture transport mirror mounting
AU - Quan, Xusong
AU - Zhang, Zheng
AU - Xiong, Zhao
AU - Wang, Hui
AU - Yuan, Xiaodong
AU - Liu, Changchun
N1 - Publisher Copyright:
© 2016 SPIE.
PY - 2016
Y1 - 2016
N2 - In high-power solid-state laser facility (SG-III), focusing laser beams into the target center with precision better than 50 microns (RMS) is dependent on the stringent specifications of thousands of large-aperture transport mirror units and is a huge challenge on the surface aberration control of mirrors. The current mirror's mounting techniques with screw fastening loads has several engineering conundrums - low control precision for loads (higher scatter even∼±30%), and low assembly-rectification efficiency (∼100 screws). To improve the current screw-fastening method, a new-style flexure supports method, which has a wonderful performance on uniform control of the external loads and only uses ∼30 screws, is proposed to mount the mirror (size: 610mm×440mm×85mm). With theoretical modeling and FEM analysis, the impacts of mounting loads on mirror's surface aberrations are analyzed and discussed in detail, and the flexure supports system is designed. Finally, with experimental research and case studies, the proposed flexure supports method shows a powerful performance on even control precision of external loads with scatter even less than ±10%, which is a promising mounting process to replace the threaded fasteners mounting the large-aperture optics. These improvements can lay a foundation for mounting process consistency, robustness, and assembly-rectification efficiency of large optical component.
AB - In high-power solid-state laser facility (SG-III), focusing laser beams into the target center with precision better than 50 microns (RMS) is dependent on the stringent specifications of thousands of large-aperture transport mirror units and is a huge challenge on the surface aberration control of mirrors. The current mirror's mounting techniques with screw fastening loads has several engineering conundrums - low control precision for loads (higher scatter even∼±30%), and low assembly-rectification efficiency (∼100 screws). To improve the current screw-fastening method, a new-style flexure supports method, which has a wonderful performance on uniform control of the external loads and only uses ∼30 screws, is proposed to mount the mirror (size: 610mm×440mm×85mm). With theoretical modeling and FEM analysis, the impacts of mounting loads on mirror's surface aberrations are analyzed and discussed in detail, and the flexure supports system is designed. Finally, with experimental research and case studies, the proposed flexure supports method shows a powerful performance on even control precision of external loads with scatter even less than ±10%, which is a promising mounting process to replace the threaded fasteners mounting the large-aperture optics. These improvements can lay a foundation for mounting process consistency, robustness, and assembly-rectification efficiency of large optical component.
KW - Large-aperture transport mirror
KW - flexure supports method
KW - opt-mechanical assembly- rectification
UR - https://www.scopus.com/pages/publications/84999663595
U2 - 10.1117/12.2243810
DO - 10.1117/12.2243810
M3 - 会议稿件
AN - SCOPUS:84999663595
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies
A2 - Fan, Bin
A2 - Cho, Myung K.
PB - SPIE
T2 - 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, AOMATT 2016
Y2 - 26 April 2016 through 29 April 2016
ER -