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首页> 外文会议>AIAA/ASCE/AHS/ASC structures, structural dynamics and materials conference >Active Flutter Suppression on Composite Tow Steered Panels based on Piezoelectric Actuation
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Active Flutter Suppression on Composite Tow Steered Panels based on Piezoelectric Actuation

机译：基于压电致动的复合牵引器上的主动扑动抑制

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The active control of aeroelastic flutter panel and optimization of the best placement location of the piezoelectric patch is evaluated in composite tow steered laminates. The aerodynamic model is based on potential supersonic flow piston theory. The structural model based on Ritz method is used to represent the tow steered composite laminate and the PZT transducers. Classical lamination plate theory and symmetric stacking sequence are used and the fiber trajectories are defined by Lagrange interpolation functions. The control system is designed using the proportional-derivative feedback approach, resulting in active damping and stiffness effects. The flutter stability boundaries for optimal tow steered composite laminates layups and optimal active steered laminate (using piezoelectric patch) are numerically compared to quantify the benefits of active control system. The instability analysis varying the proportional feedback gains is also investigated. The position and size of the patch and tow steered paths are optimized using a differential evolution algorithm to increase the aeroelastic instability margin.
机译：在复合牵引层压层中评估了气动弹性扑振面板的主动控制和压电贴片的最佳放置位置的优化。空气动力学模型基于潜在的超音速活塞理论。基于RITZ方法的结构模型用于表示牵引转向复合层压板和PZT换能器。使用经典层压板理论和对称堆叠序列，光纤轨迹由拉格朗日插值函数定义。控制系统采用比例衍生反馈方法设计，导致有源阻尼和刚度效应。为最佳牵引转向复合层压板的颤动稳定性边界叠加和最佳有源转向层压材料（使用压电贴片）与量化有源控制系统的益处。还研究了变化比例反馈收益的不稳定分析。使用差分演进算法优化贴片和牵引路径的位置和尺寸，以增加空气弹性稳定性余量。

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