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Yang Xu

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Proceedings Article | 15 January 2021 Paper

Analysis on effect of filling glue between the frame and lens with small aperture

Yang Song, Jing Ye, Wenyi Chai, Nanqing Chu, Yang Xu, Yongming Hu

Proceedings Volume 11761, 117610L (2021) https://doi.org/10.1117/12.2584978

Read Abstract +

There are different kinds of mirror in the space instrument. Sometimes, engineers use filling glue to fill the small gap of the lens and its frame. Thus the structure may be more stable. However, this kind of method could also bring some new problems. Because of different thermal expansion coefficient of the lens and frame, the thermal deformation may be different during the temperature change, which will affect the surface accuracy of the lens and the vibration response. The thickness of glue block and the distributed form of the glue are the key factors. The paper focused on these factors and did some simulations to find out how these factors affect the surface accuracy and fundamental frequency. Then, the paper gave some proposals on this issue.

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