Stiffness optimization of two-axis flexible supporting platform for fast steering mirror

	Stiffness optimization of two-axis flexible supporting platform for fast steering mirror
	Fu, J.-J.; C.-X. Yan; W. Liu and T. Yuan
	2015
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
卷号	23 期号:12 页码:3378-3386
摘要	Elliptic flexure hinges have both advantages of larger moving ranges and higher moving accuracy from right-angle flexure hinges and circular flexure hinges. Therefore, this paper designs a two axis flexible supporting platform with an elliptic flexure hinge used in a fast steering mirror system. For a fast response required by the system, the flexible supporting platform needs to maximize its natural frequency within the material's allowable stress. Firstly, the theoretical formulas of the maximum stiffness including the parameters of the allowable stress and rotating angle are deduced. The lumped parameter analysis method is adopted to obtain the relationship between the stiffness of flexible supporting platform and the stiffness of single flexure hinge. Then, the closed-form solution about the low order natural frequency of the two axis flexible support platform is deduced. A finite element model are created to perform experiments to assess those equations. The results compared by finite element analysis and theoretic calculation show that the relative error of the platform's natural frequency and maximum stress is within 5%. The relative errors of platform's stiffness got by the experiment, simulation and the theoretic calculation are 3.86% and 5.75%, respectively. These results indicate that the theoretical formula proposed in this paper is benefit for engineering structural design, it not only meets the requirements of engineering design, but also saves a lot of time. The most important thing is that it can help to achieve the optimal stiffness in theory. 2015, Science Press. All right reserved.
文章类型	期刊论文
收录类别	EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/56027
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Fu, J.-J.,C.-X. Yan,W. Liu and T. Yuan. Stiffness optimization of two-axis flexible supporting platform for fast steering mirror[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2015,23(12):3378-3386.
APA	Fu, J.-J.,C.-X. Yan,&W. Liu and T. Yuan.(2015).Stiffness optimization of two-axis flexible supporting platform for fast steering mirror.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,23(12),3378-3386.
MLA	Fu, J.-J.,et al."Stiffness optimization of two-axis flexible supporting platform for fast steering mirror".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 23.12(2015):3378-3386.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
快速控制反射镜两轴柔性支撑平台刚度优化设（354KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览下载