摘要
针对具有非线性关联大系统特性的自适应翼肋,提出了一种分布式协调控制方法;以自适应翼肋的模糊关联模型为基础,定义了自适应翼肋的每个驱动单元的虚拟结构,设计了虚拟结构的协调控制器,协调控制器之间交换耦合信息并且包含了驱动单元跟踪情况反馈;基于仿射型模糊控制理论,设计了驱动单元的跟踪控制器;将虚拟结构和驱动单元的动力学模型联合构成增广系统,严格证明了系统的稳定性并推导获得控制器设计条件;对自适应翼肋跟踪期望翼型的情况和变形过渡过程的翼肋形状进行了仿真,结果表明自适应翼肋能够达到期望翼型,并且变形过渡过程翼肋形状平滑。
A distributed cooperative control method is proposed for adaptive rib which is characterized as a nonlinear interconnected large system. Based on the fuzzy interconnected model of adaptive rib, virtual structures are defined for each actuator unit of the adaptive rib. The cooperative controllers are designed for virtual structures, which exchange coupled information with each other and receive tracking feedback information. By using affine fuzzy control theory, tracking controllers are proposed for actuator units. The dynamic models of virtual struc- tures and actuator units are combined to form an augmented system. The system stability is proved and the controller design conditions are derived. The tracking control of the adaptive ribs and the transient shapes are simulated. The results show that the adaptive rib performs smooth and continuous shape--change and finally achieves the desired airfoils.
出处
《计算机测量与控制》
CSCD
北大核心
2012年第11期2972-2974,2998,共4页
Computer Measurement &Control
基金
国家自然科学基金资助项目(91016017)
南京航空航天大学引进人才科研启动经费资助项目(10067)
关键词
变形翼
协调控制
虚拟结构
分布式控制
morphing wing
cooperative control
virtual structure
distributed control
