Aeroelastic characteristics of cantilever wing with embedded shape memory alloys
- 作者：Mohammad M. Barzegari ; Morteza Dardel ; dardel@nit.ac.ir ; Alireza Fathi ; Mojtaba Ghadimi
- 关键词：Shape memory alloy ; Limit cycle ; Flutter ; First order shear deformation ; In-plane load
- 刊名：Acta Astronautica
- 出版年：2012
- 期刊代码：1_00945765
- 类别：et
- 出版时间：October-November, 2012
- 卷：79
- 期：Complete
- 页码：189-202
- 文件大小：1451 K
摘要
In this paper, the effect of embedded shape memory alloy (SMA) wires on the natural frequency, flutter, limit cycle oscillation (LCO) amplitude and aeroelastic stability margin of a rectangular cantilever wing are investigated. Wings are modeled in accordance to classical plate theory (CPT) as well as first-order shear deformation plate theory (FSDT) and large deflection Von Karman plate theory. The effects of pre-strain, temperature and number of SMA wires on aeroelastic characteristics are considered. Significant improvements in aeroelastic behaviors due to the in-plane load of the SMA wires are obtained.