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首页> 外文期刊>Journal of Aerospace Sciences and Technologies >CHARACTERIZATION OF THE ROLE OF ADHESIVE BONDING ON PIEZOELECTRIC ACTUATION OF BEAMS
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CHARACTERIZATION OF THE ROLE OF ADHESIVE BONDING ON PIEZOELECTRIC ACTUATION OF BEAMS

机译：胶束在压电压电梁中作用的表征

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摘要

Piezoelectric actuators are one of the smart/intelligent materials which can be used as "Induced Strain Actuators" for structural members like beams, plates and shells. These piezoelectric actuators (PZT) can be bonded or embedded in the structure. The adhesive bonding between the piezoceramics and the substrate could significantly affect the strain transfer from the actuator to the substrate. The present work is an effort in experimental characterization of piezoelectric actuation of beams. A cantilever beam with surface bonded piezoelectric actuators is considered. In order to observe the effect of adhesive properties, three different adhesives viz. cyano-acrylate, epoxy resin and a structural film adhesive are used. Experiments are performed on these specimens with piezo patches in series as well as in parallel configurations, over complete cycles of the applied field. The experimental findings are compared with an existing two-dimensional Finite Element model. It is observed that cyano-acrylate bonding is the closest to the perfect bonding case. It is also observed that piezoelectric actuation exhibits significant hysterisis.
机译：压电致动器是一种智能/智能材料，可用作梁，板和壳体等结构构件的“感应应变致动器”。这些压电致动器（PZT）可以粘结或嵌入结构中。压电陶瓷和基板之间的粘合剂粘结会显着影响从致动器到基板的应变传递。目前的工作是对梁的压电致动进行实验表征的工作。考虑了具有表面结合压电致动器的悬臂梁。为了观察粘合性能的影响，使用三种不同的粘合剂。使用氰基丙烯酸酯，环氧树脂和结构膜粘合剂。在施加磁场的整个周期内，对这些具有串联和并联配置的压电片的样品进行了实验。将实验结果与现有的二维有限元模型进行比较。观察到氰基丙烯酸酯键是最接近完美键的情况。还观察到压电致动表现出显着的磁滞。

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