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CAS IR Grid
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长春光学精密机械与物... [1]
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OAI收割 [1]
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会议论文 [1]
发表日期
2010 [1]
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Nonlinear analysis method for predicting optical surface deformations resulted from assembly process (EI CONFERENCE)
会议论文
OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, April 26, 2010 - April 29, 2010, Dalian, China
Dong W.
;
Yong Y.
;
Guang J.
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提交时间:2013/03/25
There are three main nonlinear elements in the large mirror assemblies
which are screw pretension
adhesive stress and state changes in the assembly process. The optical shape will be influenced seriously by these factors. But the impacts will not be shown in linear analysis results
because as the simplification
these factors have been ignored. The nonlinear analysis method for predicting optical surface deformations resulted from assembly process is discussed in detail. Take a typical mirror support structure for example
the nonlinear analysis model was established. Comparing the calculation results with the optical shape test
it is illustrated that nonlinear analysis is more accurate and closer to the test result. And according to the simulation result
the bowl-shaped depression which was discovered in the test can also be explained reasonably. 2010 Copyright SPIE - The International Society for Optical Engineering.