A Hybrid Intelligent Control Method for Active Vibration Control of Piezoelectric Beams
碩士 === 國立臺灣科技大學 === 機械工程系 === 99 === Recently vibration control using patched piezoelectric sensors and actuators has been a popular research topic in smart materials and structures related field. To achieve fast vibration attenuation various methods have been proposed and can be categorized into tw...
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| Format: | Others |
| Language: | zh-TW |
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2011
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| Online Access: | http://ndltd.ncl.edu.tw/handle/e8fpv6 |
| Summary: | 碩士 === 國立臺灣科技大學 === 機械工程系 === 99 === Recently vibration control using patched piezoelectric sensors and actuators has been a popular research topic in smart materials and structures related field. To achieve fast vibration attenuation various methods have been proposed and can be categorized into two main groups, namely broad band and narrow band methods. The main difference between these two methods is the ability to reject unexpected or very complicated disturbances. Each design method has its own advantages and combining these two design methods as a whole new control strategy for better vibration suppression performance is a research trend in recent active vibration control community. This thesis proposes a hybrid repetitive control structure for active vibration control of smart flexible beams. The repetitive controller is added to the feedback control system and applied as an enhanced controller for narrow band disturbance rejection such as persistent and periodic excited disturbances. The other controller, which contains a neural network adaptive controller, is applied mainly for broad band disturbance rejection. The effectiveness of the proposed method is verified by several vibration control experiments on a smart piezoelectric beam.
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