压电驱动柔性机翼的开环轨迹跟踪控制
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- 英文论文题名：Open-loop Trajectory Tracking Control of Piezoelectric Actuated Flexible Wing
- 论文作者：王晓明 ; 吴志刚 ; 周文雅
- 英文论文作者：Wang Xiaoming ; Wu Zhigang ; Zhou Wenya ; School of Aeronautics and Astronautics ; Dalian University of Technology
- 年：2016
- 作者机构：大连理工大学航空航天学院;
- 论文关键词：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
- 英文论文关键词：flexible wings ; piezoelectric fiber composite materials ; aeroelasticity ; shape controll ; trajectory tracking ; quadratic programming
- 会议召开时间：2016-11-25
- 会议录名称：2016年航空科学与技术全国博士生学术论坛摘要集
- 语种：中文
- 分类号：V224
- 学会代码：XBHH
- 会议名称：2016年航空科学与技术全国博士生学术论坛
- 会议地点：中国陕西西安
- 主办单位：西北工业大学研究生院、中国高校航空学院院长联席会
- 学会名称：西北工业大学航空学院
- 页数：2
- 文件大小：489k
- 原文格式：D
- 会议级别：全国
摘要
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。
Active shape control of flexible wings can be achieved using piezoelectric fiber composite materials so as to improve the aeroelastic characteristics and flight performance. Trajectory tracking orientated open-loop dynamic shape control of flexible wing is investigated in this study. The aeroelastic equations of wing are established using structural finite element method and Theodorsen unsteady aerodynamic loads. The control forces piezoelectric actuators are obtained using load simulation method. The state space representation is developed by defining total incremental lift as control output. The voltage profiles optimization problem for the actuatros is presented in order to realize trajectory tracking control. The optimization problem is solved using quadratic programming. The simulation results show that the aeroelastic responses of wing follow the pre-defined reference trajectory with optimal voltage profiles and the continuous, smooth dynamic shape control performance.
Active shape control of flexible wings can be achieved using piezoelectric fiber composite materials so as to improve the aeroelastic characteristics and flight performance. Trajectory tracking orientated open-loop dynamic shape control of flexible wing is investigated in this study. The aeroelastic equations of wing are established using structural finite element method and Theodorsen unsteady aerodynamic loads. The control forces piezoelectric actuators are obtained using load simulation method. The state space representation is developed by defining total incremental lift as control output. The voltage profiles optimization problem for the actuatros is presented in order to realize trajectory tracking control. The optimization problem is solved using quadratic programming. The simulation results show that the aeroelastic responses of wing follow the pre-defined reference trajectory with optimal voltage profiles and the continuous, smooth dynamic shape control performance.
引文