文章基本信息

标题：Optimal distributed actuator design for control of beams
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作者：Deen Mohommad ; Shaikh Faruque Ali
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2022
卷号：55
期号：1
页码：673-678
DOI：10.1016/j.ifacol.2022.04.110
语种：English
出版社：Elsevier
摘要：AbstractDistributed systems such as cables, beams, plates, etc., are widely used in many electro-mechanical devices. The efficiency of such devices largely depends on precise dynamics of the structural components, as in micro-electro-mechanical (MEMs) devices. Therefore, better sensing of the dynamics of such components and thereafter necessary actuation are the keys to increase precision of such devices. This work designs an optimal distributed actuator of a linear beam using its vibration modes. General boundary conditions are considered with a finite element frame work so that the transducer design is applicable for any vibrating beam. Piezoelectric composites are considered as actuators and the signal is considered proportional to the excited response of the targeted mode for optimization. Finally, the optimal shaped transducer is used to control an externally excited beam with cantilever boundary condition. The voltage inputs required to control shaped modal actuator is compared with a regular rectangular shaped piezoelectric actuator. Results are reported at the end.
关键词：Keywordsbeamsfinite elementshaped modal actuatorpiezoelectric actuatorlinear controloptimization