论文标题
机翼对阵风的航空弹性响应：来自计算能量图的预测和控制策略
Aeroelastic response of an airfoil to gusts: Prediction and control strategies from computed energy maps
论文作者
论文摘要
提出了一种预测机翼对阵风的航空弹力响应的方法。该预测是基于通过规定的俯仰振荡的高保真流体动态模拟产生的能量图。能量图量化了俯仰机翼和流动之间的能量交换，并用作流动弹性机翼系统的动态状态生长，衰减和达到固定状态的歧管。这种方法使我们能够研究系统对大阵风的全部非线性响应，并预测气体弹性音高不稳定性的生长和饱和度。我们还表明，这些地图中的歧管拓扑可用于对系统参数进行知情修改，以控制对阵风的响应。
A method to predict the aeroelastic pitch response of an airfoil to gusts is presented. The prediction is based on energy maps generated by high-fidelity fluid dynamic simulations of the airfoil with prescribed pitch oscillations. The energy maps quantify the exchange of energy between the pitching airfoil and the flow, and serve as manifolds over which the dynamical states of aeroelastic airfoil system grow, decay and attain stationary states. This method allows us to study the full nonlinear response of the system to large gusts, and predict the growth and saturation of aeroelastic pitch instabilities. We also show that the manifold topology in these maps can be used to make informed modifications to the system parameters in order to control the response to gusts.
