Unimorph active optics thin-shell reflectors actuated with distributed electric field

Chuyue Yu; Yuxuan Gong; Kainan Wang

doi:10.1117/12.3032625

26 July 2024 Unimorph active optics thin-shell reflectors actuated with distributed electric field

Chuyue Yu, Yuxuan Gong, Kainan Wang

Proceedings Volume 13189, Second Conference on Space, Atmosphere, Marine, and Environmental Optics (SAME 2024); 131890V (2024) https://doi.org/10.1117/12.3032625
Event: Second Conference on Space, Atmosphere, Marine, and Environmental Optics (SAME 2024), 2024, Hangzhou, China

Abstract

This paper presents a study on the excitation method for a thin-shell active reflector with an electric actuation source. The actuators are considered with very small dimensions. We discuss two main topics: the distinguishable mechanical behavior of the quasi-static response of unimorph composite charging by a distributed field, focusing on reduced morphing amplitudes and limited influencing areas. Then, we investigate the method of computing the distributed electric field for adjusting the shape using an equivalent mechanical model with various load sets of self-equilibrium forces and moments. The correction process can be iterative, and the potential update to change the shape is linearly related to the distribution of the mean curvature. Finally, we discuss downsampling issues and present some initial numerical results. Additionally, we propose a framework of hierarchically iterative charging strategy.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Chuyue Yu, Yuxuan Gong, and Kainan Wang "Unimorph active optics thin-shell reflectors actuated with distributed electric field", Proc. SPIE 13189, Second Conference on Space, Atmosphere, Marine, and Environmental Optics (SAME 2024), 131890V (26 July 2024); https://doi.org/10.1117/12.3032625

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