低速流场中柔性悬臂板的后颤振响应
收稿日期: 2016-03-11
修回日期: 2016-11-14
网络出版日期: 2016-11-21
基金资助
国家自然科学基金（11202165，11402212）
Post flutter response of flexible cantilever plate in low speed flow field
Received date: 2016-03-11
Revised date: 2016-11-14
Online published: 2016-11-21
Supported by
National Natural Science Foundation of China (11202165, 11402212)
陈涛 , 徐敏 , 谢丹 , 安效民 . 低速流场中柔性悬臂板的后颤振响应[J]. 航空学报, 2017 , 38(3) : 120215 -120215 . DOI: 10.7527/S1000-6893.2016.0296
A new nonlinear aeroelastic model is established for the analysis of post flutter behavior of the flexible cantilever plate in low speed flows. Geometric nonlinearity, aerodynamic nonlinearity as well as the strong coupling effect between geometric and aerodynamic nonlinearities are considered in the modeling. The aeroelastic model is verified with experimental data. The study shows that the flexible cantilever plate in low speed flows can enter into chaotic movement by means of periodic doubling in structural response. It is found that geometric nonlinearity and the unsteady aerodynamic effect caused by tip vortexes have significant impact on the structural response, while the unsteady aerodynamic force caused by deformation of wake vortexes has slight impact on the structural response. Different coupling strategies are also investigated to provide a reference for the selection of coupling strategy in nonlinear aeroelastic simulations of low-aspect-ratio flexible structures in low speed flows.
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