A Study on the Buckling and Postbuckling Control of Composite Beams with Embedded NiTi Actuators
A Study on the Buckling and Postbuckling Control of Composite Beams with Embedded NiTi Actuators
复制标题
嵌入式镍钛作动器复合梁的屈曲和屈曲后控制研究
DOI：
10.1106/h30n-6tmj-71e7-95k2
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
D. Seo
中科院分区：
文献类型：
--
作者：
Sup Choi;Jung Ju Lee;D. Seo
本文对偏心嵌入NiTi致动器的复合材料层合梁的屈曲和后屈曲控制进行了实验研究。为了提高临界屈曲载荷的目的，屈曲控制研究通过使用与形状恢复力的NiTi驱动器的反作用力矩。为了提高镍钛复合材料梁屈曲和后屈曲控制的控制能力，采用了闭环控制。屈曲和后屈曲控制行为，定性和定量地讨论考虑堆叠顺序的层压板，细长比的梁和激活条件的NiTi致动器的载荷-挠度图。实验结果表明，在适当的反力矩作用下，屈曲控制可以推广到镍钛复合材料梁的后屈曲控制。
In this paper, an experimental study on the buckling and postbuckling control of a laminated composite beam with eccentrically embedded NiTi actuators is performed. For the purpose of enhancing the critical buckling load, buckling control is investigated through the use of reactive moment associated with the shape recovery force of NiTi actuators. To improve the control authority for the buckling and postbuckling control of the NiTi-composite beam, closed-loop control is used. The buckling and postbuckling control behaviours are presented and discussed qualitatively and quantitatively on load-deflection plots considering stacking sequence of the laminate, slenderness ratio of the beam and activation conditions of the NiTi actuators. The experimental results show that the buckling control can be extended to the postbuckling of the NiTi-composite beam with the proper reactive moment.