中文摘要：

将多主体系统（Multi-agent system,MAS）分布协同控制的方法应用到封闭空腔结构声控制中,解决整体控制架构的复杂性和智能单元的协调问题。提出由两个相邻弹性板围成的封闭空腔模型,利用模态叠加法分析腔内耦合声场的分布。在此基础上研究基于MAS的智能控制方法处理复杂的封闭空腔耦合噪声场的基本理论和可行性。通过对噪声控制问题进行逐层分解,构建相应的MAS控制架构。定义具有针对性的子控制器主体及其操作域和内部功能函数,并采用协调体结构中的类监督和竞争协调机制将各子控制器主体耦合起来,建立一个完整的基于MAS的封闭空腔有源力控制系统。仿真结果表明该系统对封闭空腔噪声控制具有可行性且降噪效果较好;同时还体现了并行运算、＂即插即用＂和高度稳定性等MAS的优势。

英文摘要：

The active structural acoustic control of enclosure is investigated based on the distributed cooperative control method of multi-agent system （MAS）. The coordination problems between the complexity of overall control architecture and intelligent units are discussed by the method. A rectangular enclosure involving two simply supported flexible plates is considered. The characteristics of the coupled system with the two flexible plates are described by the modal superposition method. The feasibility of applying MAS to structural-acoustic coupled system is analyzed. The noise control problem is decomposed into several layers, and sub-controller agents for local control problems are defined as well as their operating regimes and inner functions. All sub-controller agents arc coupled into an integral MAS by supervisor-like and competitive coordination mechanisms. The simulation results indicate that the better control performances are attained. At the same time, the active structural acoustic control system has the advantages of MAS, such as parallelism, scalability and robustness.