Third mirror Stewart platform of TMT based on mechanism condition number

	Third mirror Stewart platform of TMT based on mechanism condition number
	Zhang J.-X.; An Q.-C.; Li J.-F.; Yang F.
	2014
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
ISSN	ISBN/1004924X
卷号	22 期号:4 页码:890-896
摘要	The rotation accuracy of large Stewart platform of a three mirror system in a 30 m telescopy was explored based on the error transfer. Firstly, the singular value method was used to analyze the Stewart platform velocity Jacob matrix, and to obtain the relationship between mechanism condition number and leg elongation. Then, using condition number and system error transfer function , the relationship between the leg elongation error and the platform attitude error was discussed in TMT special kinematical forms, and a group of optimal solution was given out by the MATLAB optimization. After using the ADAMS to validate the theoretical derivation, the known error transfer model combined with precision experiment was used to identify the leg elongation error for evenly distribution and the mobile platform rotation error for bimodal distribution . The MATLAB simulation indicates when the leg elongation error is distributed from 0 to 1 evenly, the expectation of mobile platform rotation error vector norm has reduced from 5.345 410-4to 4.272 110-4 with optimizing quantity by 20%. It concludes that the error distributions of the two shoulder peaks are close to each other and move to 0 point integratively.
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/181722/44472
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Zhang J.-X.,An Q.-C.,Li J.-F.,et al. Third mirror Stewart platform of TMT based on mechanism condition number[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2014,22(4):890-896.
APA	Zhang J.-X.,An Q.-C.,Li J.-F.,&Yang F..(2014).Third mirror Stewart platform of TMT based on mechanism condition number.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,22(4),890-896.
MLA	Zhang J.-X.,et al."Third mirror Stewart platform of TMT based on mechanism condition number".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 22.4(2014):890-896.

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