| Funded by the National Research Foundation and served as one item of the research of "Intelligent Self-Control of Flexible Space Structures", this paper investigated vibration suppression of flexible structures. Based on a duralumin flexible beam with piezoelectric films attached, distributed parameter modal described by partial difference equations is builded, and then turned into a set of two order systems with the method of modal analyse. State feedback control and independent modal control is investigated. And simulation of the closed-loop system with thest two methods is performed in MATLAB. Control software of the beam system is improved. In experiment, state feedback control is used and is verified by the well suppressed vibration of the flexible beam. |
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