智能混合变形翼的多学科控制与传感研究

G. Jodin, Johannes Scheller, J. Rouchon, M. Braza
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引用次数: 2

摘要

变形翼技术对于提高未来飞机的气动性能具有重要意义。采用表面嵌入式形状记忆合金(SMA)和压电宏纤维复合材料(MFC)作动器设计了一种可变形机翼原型机,用于风洞实验。这种智能机翼是一个机电一体化系统,包含嵌入式传感器来测量周围的流量并控制执行器。本文将重点介绍使用一组嵌套控制回路实现的弯曲系统的控制,以及使用原位温度测量的新型控制策略的观点。将表明,通过利用sma弯曲的固有滞后特性,通过适当地调整控制策略,可以显著降低功耗。此外,通过将风洞实验中记录的后处理压力信号与气动性能结果进行比较,将显示一种新型原位控制的前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
On the multidisciplinary control and sensing of a smart hybrid morphing wing
Morphing wing technology is of great interest for improving the aerodynamic performance of future aircraft. A morphing wing prototype using both surface embedded Shape Memory Alloys (SMA) and piezoelectric macro fiber composite (MFC) actuators has been designed for wind tunnel experiments. This smart wing is a mechatronic system that contains embedded sensors to measure the surrounding flow and control the actuators. This article will focus on the control of the cambering system which is achieved using a group of nested control loops as well as on the perspective of a novel control strategy using in-situ temperature measurements. It will be shown that by exploiting the inherent hysteretic properties of the SMAs cambering a significant reduction in power consumption is possible by appropriately tailoring the control strategy. Furthermore, by comparing the post-processed pressure signals recorded during the wind tunnel experiments to the aerodynamic performance gains a perspective for a novel in-situ control will be shown.
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