期刊
MICROMACHINES
卷 14, 期 9, 页码 -出版社
MDPI
DOI: 10.3390/mi14091756
关键词
active optics; unimorph deformable mirror; space application; structural and environmental uncertainties
This paper focuses on studying the change of morphing abilities of a deformable mirror affected by environmental factors in space. It considers the impact of thermal and mechanical conditions on the mirror's performance and discusses the uncertainties they bring to the design of control methods.
This paper focuses on the change of morphing capabilities for a unimorph deformable mirror impacted by environmental factors, which works in space for active optics applications. Various aspects of disturbing sources are considered, including complex thermal and mechanical conditions on ferroelectric behaviours of strain actuation, and influences of preconfigured initial shapes and stress-induced geometric stiffness on the structural rigidity of the mirror; changes on both the perturbed shape and the Jacobian matrix are discussed. Those variations are regarded as uncertainties in the design of control methods with both open-loop and iterative control strategies tested in the quasi-static range.
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