Free vibration analysis of variable angle-tow composite wing structures
Free vibration analysis of variable angle-tow composite wing structures
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DOI：
10.1016/j.ast.2019.05.068
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发表时间：
2019-09
影响因子：
5.6
通讯作者：
A. Viglietti;E. Zappino;E. Carrera
中科院分区：
文献类型：
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作者：
A. Viglietti;E. Zappino;E. Carrera
本文研究了用变角拖曳复合材料改善复杂航空结构动力响应的可能性。这项研究已经进行了使用一种创新的数值方法开发的框架内的卡雷拉统一配方能够研究层压板的曲线纤维，其轨迹可以任意定义。精细的运动学结构模型已被用来处理这种结构的复杂行为。几种情况下进行了研究，以验证这种方法，并与经典的建模方法的结果进行了比较。考虑了简单梁模型和复杂机翼结构。研究了不同路径的影响，并进行了比较。结果证实，可以使用适当的拖曳铺层来提高机翼结构的性能，即可以实现创新的设计解决方案。
This paper investigates the possibility to improve the dynamic response of complex aeronautical structures using variable angle-tow composites. The study has been performed using an innovative numerical approach developed in the framework of the Carrera Unified Formulation able to study laminates with curvilinear fibres whose trajectories can be arbitrarily defined. Refined kinematic structural models have been used to deal with the complex behaviour of such structures. Several cases have been investigated in order to validate this approach and the results have been compared with those from classical modelling approaches. Simple beam models and complex wing structures, have been considered. The effects of different fibres-paths have also been studied and compared. The results confirm that an appropriate tow lay-up can be used to improve the performances of wing structures, i.e. innovative design solutions can be achieved.