结构振动的非光滑控制方法研究

项目名称： 结构振动的非光滑控制方法研究

项目编号： No.51478132

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 建筑科学

项目作者： 王清

作者单位： 广州大学

项目金额： 86万元

中文摘要： 建筑结构日趋复杂，尤其是针对高层建筑，分布特性、参数的不确定性、外部强干扰特性日益突出，对控制性能提出更高要求，给结构振动控制技术带来新挑战。本项目拟引入控制领域的非光滑控制方法，就结构振动的非光滑控制方法开展深入研究。内容包括：（1）深入分析典型结构的特点，控制系统的性能要求，给出明确反映参数不确定性的一般性数学模型；（2）以系统在地震荷载冲击下，最短时间内恢复稳定为目标，考虑实施的控制力存在最大能量约束等特点，以非光滑控制方法为基础，研究系统的镇定和输出调节问题，给出结构振动非光滑控制律设计方法；（3）基于自抗扰控制方法中的扩张状态观测器给出系统控制所需状态及扰动信息的实时估计方法；（4）完成系统的综合设计工作，完成算法的软件设计，通过数字仿真加以分析、验证；（5）设计典型模型实验系统，完成实验验证。预期研究成果将使结构振动控制理论更加丰富，并成为实际应用设计的指导。

中文关键词： 非光滑控制；主动控制；结构振动控制；有限时间稳定；自抗扰控制

英文摘要： The building strucures are becoming more and more complex, especially for skyscrapers. The complexity covers the inherent distribution properties,parameter uncertainties, and strong external disturbances. In the meantime,higher control performance demands are reqused. All these characteristics bring new challenges to structural vibration control technology. This project conducts the nonsmooth control approaches to the vibration control, including the following aspects: (1)Deeper analysis is to be conducted for typical structures and control performance demands, in order to give a general mathmatical desriptiono with parameter uncertainties. (2)Under the prescribed constraints, nonsmooth control method will be used to design the stabilizaiton and output regulation control laws for the uncertain systems with strong external disturbances. The design objective is to improve the performance of the systems, such as rapid responses to the external distrubances, strong robustness to the uncertainties. (3)Extended state observer technique of the auto-disturbance rejection control will be used to design the state and distrubance information estimation algorithm which wil be used to estimate the state and disturbance information in real time in the control law implementation.(4)Based on the research mentioned above, structural vibration control synthesis will be conducted together with the sofeware design for algorithms, and the synthesis will be verified by numerical simulation. (5)Lastly the synthesis will be verified by physical experiments. The expected research results can be effectively applied to the design of the structural vibration control systems with improved control performance.

英文关键词： Nonsmooth control;Active control;Structural vibration control;Finite-time stability;Auto Disturbance Rejection Control