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首页> 外文会议>AIAA/ASCE/AHS/ASC structures, structural dynamics and materials conference;AIAA SciTech Forum >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：基于压电驱动的复合拖曳转向板的主动颤振抑制

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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：在复合丝束转向层压板中评估了气动弹性颤振板的主动控制和压电贴片最佳放置位置的优化。空气动力学模型基于潜在的超声速流动活塞理论。使用基于Ritz方法的结构模型来表示牵引转向复合材料层压板和PZT换能器。使用经典的层压板理论和对称的堆叠顺序，并通过拉格朗日插值函数定义纤维轨迹。使用比例微分反馈方法设计控制系统，从而产生主动阻尼和刚度效应。通过数值比较最佳牵引控制的复合材料层压板布局和最佳主动控制的层压板（使用压电贴片）的颤振稳定性边界，以量化主动控制系统的优势。还研究了改变比例反馈增益的不稳定性分析。使用差分演化算法优化贴片和牵引转向路径的位置和大小，以增加气动弹性的不稳定性裕度。

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