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Optimization design of compliant focusing mechanism for space optical camera with light weight
Li, Yan1,2; Liu, Bo1; Ge, Wenjie1; Tong, Xinxing3
Department产业发展处
2022-08
Source PublicationADVANCES IN MECHANICAL ENGINEERING
ISSN1687-8132;1687-8140
Volume14Issue:8
Contribution Rank1
Abstract

Thermal radiation and vacuum lead to the deformation of bearing cylinder with carbon fiber composites which generates the defocus phenomenon for space optical camera. As heavier weight and higher complexity of the rigid focusing mechanism for the space optical camera, a novel compliant focusing mechanism with lighter weight and simple structure was designed and tested in this paper. In order to achieve stroke range and ensure image quality for the compliant focusing mechanism, micro driving displacement from the piezoelectric ceramics was amplified by two-stage flexible hinge lever-type mechanism. Taking the size parameters of the flexure hinges and beams as the design variables, an optimization model of the compliant focusing mechanism was established in which minimizing weight was considered as objection function under the stroke requirements. Consequently, optimal structure parameters of the compliant focusing mechanisms under different input forces can be obtained under the allowable stress and lighter weight. The effectiveness of the proposed compliant focusing mechanism was verified by the simulations and experiments. The results show that the compliant focusing mechanism can achieve a stroke of 2 mm for the focal plane assembly. The proposed method provided a new idea to design the focusing mechanism with lighter weight, simpler structure and higher reliability.

KeywordCompliant mechanism focusing mechanism amplifier space optical camera
DOI10.1177/16878132221119707
Indexed BySCI
Language英语
WOS IDWOS:000842861700001
PublisherADVANCES IN MECHANICAL ENGINEERING
Citation statistics
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/96131
Collection产业发展处
Corresponding AuthorGe, Wenjie
Affiliation1.Northwestern Polytech Univ, Sch Mech Engn, 127 West Youyi Rd, Xian 710072, Shaanxi, Peoples R China
2.Xian Inst Opt & Precis Mech, Xian, Peoples R China
3.Xian Univ Technol, Sch Mech & Precis Instrument Engn, Xian, Peoples R China
Recommended Citation
GB/T 7714
Li, Yan,Liu, Bo,Ge, Wenjie,et al. Optimization design of compliant focusing mechanism for space optical camera with light weight[J]. ADVANCES IN MECHANICAL ENGINEERING,2022,14(8).
APA Li, Yan,Liu, Bo,Ge, Wenjie,&Tong, Xinxing.(2022).Optimization design of compliant focusing mechanism for space optical camera with light weight.ADVANCES IN MECHANICAL ENGINEERING,14(8).
MLA Li, Yan,et al."Optimization design of compliant focusing mechanism for space optical camera with light weight".ADVANCES IN MECHANICAL ENGINEERING 14.8(2022).
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