拉杆式压弯聚焦镜组件线性与接触非线性方法比较.pdfVIP

18 8 V ol . 18 N o. 8 20 10 8 Optics and P recision Engineering A ug. 2010 1004924X 2010) 1 1 2 1 1 吕清涛 , 薛 松 , 彭忠琦 , 祝万钱 , 傅 远 1. 中国科学院上海应用物理研究所, 上海201800; 2. 中国科学院长春光学精 机械及物理研究所, 吉林 长春 130033) : , , , , , , 0 . 4 r ad 5 km , : , : 压弯聚焦镜; 接触非线性分析; 线性分析 : T H 703; T B24 : A doi: 10 . 37 88/ O PE . 2010180 8. 1842 Comparison on linear and contact nonlinear analysis methods of pullrod bent focusing mirror assembly 1 1 2 1 1 L UQingt ao , X UE Song , P EN G Zhongqi , ZH U Wanqian , FU Y uan ( 1. Shanghai I nstitute of A p p lied P hysics , Chinese A cademy of Sciences, Shanghai 20 1800, China; 2. Changchun I nstitute of Op tics , F ine M echanics and P hysics , Chinese A cademy of Sciences, Chang chun 130033, China) Abstract: F or analy sis on pullrod bent focusing mirro r assem blies in engineering , t he accurat e results can be obt ained by a cont act nonlinear met ho d rat her t han a linear analy sis. A s analysis of a nonlinear syst em by linear m et hod show s a bigg er error, t his paper researches t he cau ses of erro rs. A pullrod bent f ocu sing m irror assembly is simulated by t he finit e elem ent method , t hen t he cont act nonlinear a nalysis m et hod is int ro duced t o analy ze t he response of focusing mirro r w hen it s pullrod is bended. In com pariso n of t he nonlinear analysis result s w it h det ectio n result s, it is point ed out t hat t he err ors be t w een t hem on scope and radiu s are 4 r ad and 5 km w hen t h