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压电驱动柔性机翼的开环轨迹跟踪控制

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Indexed by:会议论文

Date of Publication:2016-11-01

Page Number:2

Key Words:柔性机翼;压电纤维复合材料;气动弹性;形状控制;轨迹跟踪;二次规划

Abstract:利用压电纤维复合材料能够实现柔性机翼的形状主动控制,改善机翼气动弹性性能、增强飞行器飞行性能。本文研究面向轨迹跟踪的柔性机翼开环动态形状控制。基于结构有限元模型和时域Theodorsen非定常气动力载荷,建立了机翼气动弹性方程。采用压电驱动的载荷比拟法得到了压电作动器控制载荷。以翼面总升力增量为控制输出,给出了系统状态空间表达式。提出了面向轨迹跟踪控制的作动器电压加载历程优化问题,并采用二次规划方法进行了求解。仿真算例表明,采用规划后的电压加载历程,机翼气动弹性响应很好地跟踪了预期参考轨迹,实现了连续、光滑的动态形状控制效果。

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