کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
699919 890812 2010 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High precision massive shape control of magnetically levitated adaptive mirrors
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
پیش نمایش صفحه اول مقاله
High precision massive shape control of magnetically levitated adaptive mirrors
چکیده انگلیسی

The paper presents a control scheme that provides precise active shape control of deformable mirror shells using a very large number of control points. The proposed controller combines a low frequency centralized feedforward and a high frequency fully decentralized feedback, with each single actuator mated to a single sensor. To grant a precisely controlled shape the feedforward part requires an accurate knowledge of the system stiffness. For this purpose a viable experimental identification procedure for high dimension steady state response matrices is described and verified through realistic simulations. Finally the control methodology is applied to the model of an adaptive secondary mirror with 3360 control points. Numerical results confirm the validity of the proposed approach.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Control Engineering Practice - Volume 18, Issue 12, December 2010, Pages 1386–1398
نویسندگان
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