期刊
CHINESE JOURNAL OF AERONAUTICS
卷 26, 期 4, 页码 935-942出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cja.2013.04.015
关键词
Cosine honeycomb; Flexible skin; Mechanical properties; Morphing wing; Smart structure
资金
- National Natural Science Foundation of China [50905085, 91116020]
- National Science Foundation for Post-doctoral Scientists of China [2012M511263]
A novel 0-Poisson's ratio cosine honeycomb support structure of flexible skin is proposed. Mechanical model of the structure is analyzed with the energy method, finite element method (FEM) and experiments have been performed to validate the theoretical model. The in-plane characteristics of the cosine honeycomb are compared with accordion honeycomb through analytical models and experiments. Finally, the application of the cosine honeycomb on a variable camber wing is studied. Studies show that mechanical model agrees well with results of FEM and experiments. The transverse non-dimensional elastic modulus of the cosine honeycomb increases (decreases) when the wavelength or the wall width increases (decreases), or when the amplitude decreases (increases). Compared with accordion honeycomb, the transverse non-dimensional elastic modulus of the cosine honeycomb is smaller, which means the driving force is smaller and the power consumption is less during deformation. In addition, the cosine honeycomb can satisfy the deforming requirements of the variable camber wing. (C) 2013 Production and hosting by Elsevier Ltd. on behalf of CSAA & BUAA.
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