Aeroelastic divergence and free vibration of tapered composite wings

Mengchun Yu, Chyanbin Hwu

研究成果: Conference contribution

摘要

In aeroelasticity, divergence of wing structures is an important static phenomenon. On the other hand, the free vibration analysis is significant to investigate the dynamic characteristics of the structure. Recently, a comprehensive wing model considering the airfoil shape was established. However, the analysis of tapered wing was still not taken into account so far. In this paper, this model is extended to discuss the tapered composite wings. By employing the Hamilton's principle and following the standard procedure of finite element formulation, an elementwise comprehensive model was developed. Because this model can be applied to both static and dynamic analyses, divergence and free vibration will be studied. In this model, aerodynamic force vector containing the lift and moment of the wings was approximated by the strip theory, which will then lead to a standard eigen-relation for solving the divergence dynamic pressure by neglecting the inertial terms. Besides, this model will also provide another eigen-relation for solving the natural frequencies when all the external forces are eliminated.

原文English
主出版物標題Proceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness
主出版物子標題From Green Composites to Aerospace"
出版狀態Published - 2007 12月 1
事件16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace" - Kyoto, Japan
持續時間: 2007 7月 82007 7月 13

出版系列

名字ICCM International Conferences on Composite Materials

Other

Other16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace"
國家/地區Japan
城市Kyoto
期間07-07-0807-07-13

All Science Journal Classification (ASJC) codes

  • 一般工程
  • 陶瓷和複合材料

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