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首页> 外文会议>18th International Conference on Adaptive Structures and Technologies(ICAST 2007) >Piezoelectrically controlled, aeroelastic active thin plates
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Piezoelectrically controlled, aeroelastic active thin plates

机译：压电控制，气动弹性主动薄板

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In recent years, research on airfoil morphing is increasingly focusing on innovative ideas like the use of compliant systems, the integration of solid-state actuators and finally, the exploitation of aeroelastic servo-effects, In this work, preliminary results of a study carried out at EMPA are presented, which deals with implementing these ideas simultaneously in a single device. Thin composite plates are equipped with piezoelectric surface actuators and operated in aeroelastically marginally stable or even unstable conditions, In this way, most of the strain energy required to produce the desired (large) shape changes is obtained by the airflow but is fully controlled by the piezoelectric actuator. As a result, one of the most critical drawbacks of piezo-actuation, its low static energy density, is overcome. The core of the paper is dedicated to the development of proper analytical tools which take into account the inherent nonlinearities of the problem. Subsequently, first experimental results are presented.
机译：近年来，机翼变形研究越来越集中在创新思想上，例如使用顺应性系统，固态致动器的集成以及最后利用气动弹性伺服效应。在这项工作中，进行了初步研究在EMPA大会上，将介绍如何在单个设备中同时实现这些想法。复合材料薄板配备了压电表面执行器，并在气动弹性边际稳定或什至不稳定的条件下运行。通过这种方式，产生所需（较大）形状变化所需的大部分应变能是通过气流获得的，但可以通过气流完全控制压电致动器。结果，克服了压电致动的最关键的缺点之一，即其低的静态能量密度。本文的核心致力于开发考虑到问题固有的非线性的适当分析工具。随后，提出了第一批实验结果。

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