Design of cartwheel flexural support for a large aperture space mirror

	Design of cartwheel flexural support for a large aperture space mirror
	Li Z.; Chen X.; Zhang L.; Jin G.; Zhang Y.; Yan Y.; Jia X.; Kong L.
	2014
发表期刊	Guangxue Xuebao/Acta Optica Sinica
ISSN	ISBN/02532239
卷号	34 期号:6
摘要	The large aperture primary mirror assembly (PMA) mounted in space remote sensor should have the extraordinary virtues as high stiffness, high strength, high thermal stability etc.. A novel three-point flexural support configuration based on Cartwheel flexural hinge for large aperture PMA is presented in this paper. Firstly, the stiffness characteristic of the support structure is approached using the dimensionless design method. Then, static and dynamic analysis based on finite element method are performed on the PMA to find the optimal dimension parameters of the support flexure. Finally, optical test on a mirror with /40 root mean square (RMS) surface figure and vibration experiment on an equivalently spherical mirror are performed to validate the design configuration. The simulation and experiment results indicate that when the thickness of flexure t=8 mm, beam height h=4 mm, beam length L=8 mm, the surface figure of PMA can keep below RMS 12 nm under the load of 1 G gravity and 15C temperature change. The first natural frequency reaches 296 Hz, only deviating 6% from the analysis result. The Cartwheel flexure support can satisfy the extraordinary design requirements.
收录类别	EI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/43854
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Li Z.,Chen X.,Zhang L.,et al. Design of cartwheel flexural support for a large aperture space mirror[J]. Guangxue Xuebao/Acta Optica Sinica,2014,34(6).
APA	Li Z..,Chen X..,Zhang L..,Jin G..,Zhang Y..,...&Kong L..(2014).Design of cartwheel flexural support for a large aperture space mirror.Guangxue Xuebao/Acta Optica Sinica,34(6).
MLA	Li Z.,et al."Design of cartwheel flexural support for a large aperture space mirror".Guangxue Xuebao/Acta Optica Sinica 34.6(2014).

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