Fault-tolerant control for structural vibration systems with multi-constraints
Sun Jinlong1;Teng Qing Fang1,3;WangGuolin2;Fan Duo Wang3
( 1. School of Automation & Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China; 2. College of Civil Engineering,Southeast University,Nanjing 210096,China; 3. Key Laboratory of Opto-Electronic Technology and Intelligent Control (Lanzhou Jiaotong University), Ministry of Education, Lanzhou 730070, China )
现代控制理论在工程结构振动领域中的应用性不强主要是因为其考虑的实际约束条件太少,本文就该问题进行了研究。首先根据建筑结构力学原理,建立了包含控制输入滞后、执行器故障、参数不确定等的结构系统状态模型。然后基于状态反馈和线性矩阵不等式处理方法给出了一个可满足多约束条件的时滞依赖型鲁棒H∞容错主动控制算法。通过对一个四自由度建筑结构模型在 EI Centro 地震波作用下振动的主动控制仿真,验证了本文所提方法的可行性,可用于工程结构的振动控制。
Abstract:The application of modern control theory in the field of engineering structure vibration is not strong mainly because it has a little considerations of actual constraint, the paper conducted a study on this issue. According to structural dynamics theory, a state-space model contains input time-varying delay, actuator failure, parameter uncertain, etc. is established. The model parameters were appropriately dealt with to lower the conservatism. A robust H∞ reliable active control algorithm for multi-constraints was also proposed based on both state feedback and LMI approaches. Finally, a building model with four degrees of freedom subjected to the EI Centro earthquake is simulated and studied utilizing the algorithm, and the results show that the proposed method is feasible and thus can be used to control the vibration of engineering structures.
孙金龙;滕青芳;王国林;范多旺. 多约束条件下结构振动系统的容错控制[J]. , 2010, 29(2): 69-74.
Sun Jinlong;Teng Qing Fang;WangGuolin;Fan Duo Wang. Fault-tolerant control for structural vibration systems with multi-constraints. , 2010, 29(2): 69-74.