地震作用下高层建筑结构的分散模糊迭代学习控制研究
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摘要
针对地震作用下高层建筑结构的模糊半主动振动控制方法进行研究,引入分散控制的策略,将模糊逻辑理论与迭代学习控制算法原理相结合,提出分散模糊迭代学习控制DFILC(Decentralized Fuzzy Iterative LearningControl)算法,并应用于高层结构地震反应振动控制中。对某20层钢结构Benchmark结构模型进行数值计算与分析,结果表明,采用分散控制策略的DFILC算法可以有效地抑制结构地震反应,相对于集中控制的单一失效分散控制系统的可靠性更强且数据实时处理效率大为提高;同时,模糊逻辑理论的运用解决了模型的不确定性和外扰的非线性。
Methods for fuzzy semi-active vibration control of tall buildings under earthquakes is studied. By introducing the decentralized control strategy and combining the Fuzzy control and Iterative Learning Control(ILC),an algorithm named Decentralized Fuzzy Iterative Learning Control(DFILC)has been presented for the decentralized seismic response control of tall buildings.A typical 20-storey seismically excited building is used for comparing the performance of the two control strategies.The results indicate that the DFILC strategy could effectively mitigate structural seismic response as well as the traditional centralized control strategy but is superior in enhancing the reliability and more efficient in the data realtime processing of the control system.It is also more suitable for the control system with model uncertainty and external disturbance nonlinearity thanks to the fuzzy logic theory.
Methods for fuzzy semi-active vibration control of tall buildings under earthquakes is studied. By introducing the decentralized control strategy and combining the Fuzzy control and Iterative Learning Control(ILC),an algorithm named Decentralized Fuzzy Iterative Learning Control(DFILC)has been presented for the decentralized seismic response control of tall buildings.A typical 20-storey seismically excited building is used for comparing the performance of the two control strategies.The results indicate that the DFILC strategy could effectively mitigate structural seismic response as well as the traditional centralized control strategy but is superior in enhancing the reliability and more efficient in the data realtime processing of the control system.It is also more suitable for the control system with model uncertainty and external disturbance nonlinearity thanks to the fuzzy logic theory.
引文
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[8]Wu H S.Decentralized iterative learning control for aclass of large scale interconnected dynamical systems[J].Journal of Mathematical Analysis and Appli-cations,2007,327(1):233-245.
[9]邹立华,黄昆.基于磁流变阻尼器的多单体组合隔震结构模糊控制研究[J].计算力学学报,2007,24(3):365-384.(ZOU Li-hua,HUANG Kun.Study oncombined multi-unit isolated structures with Magne-to-rheological dampers by fuzzy control[J].ChineseJournal of Computational Mechanics,2007,24(3):365-384.(in Chinese))
[10]金峤,周晶.半主动TLCD对偏心结构的离散模糊变结构控制[J].计算力学学报,2007,24(1):50-56.(JIN Qiao,ZHOU Jing.TLCD semi-active control meth-odology for eccentric buildings using discrete-time fuzzyvariable structure law[J].Chinese Journal of Computa-tional Mechanics,2007,24(1):50-56.(in Chinese))
[11]汪权,王建国,张鸣祥.结构地震反应线性二次型最优迭代学习控制[J].应用科学学报,2010,28(2):197-202.(Wang Quan,Wang Jian-guo,Zhang Ming-xiang.Optimal control of structure seismic responseusing linear quadratic performance function and itera-tive learning[J].Journal of Applied Sciences,2010,28(2):197-202.(in Chinese))(下转第709页)
[2]Lynch J P,Law K H.Decentralized control techniquesfor large-scale civil structural systems[A].Proceedingsof the 20th International Modal Analysis Conference[C].Los Angeles.Bellingham:Society of Photo-Optical In-strumentation Engineers,2002.
[3]Ma T W,Xu N S,Tang Y.Decentralized robust con-trol of building structures under seismic excitations[J].Earthquake Engng Struct Dyn,2008,37(1):121-140.
[4]Wang Y,Lynch J P,Law K H.Decentralized H∞con-troller design for large-scale civil structures[J].Earthquake Engineering Structural Dynamics,2009,38(3):377-401.
[5]Loh C H,Chang C M.Application of centralized anddecentralized control to building structure:analyticalstudy[J].Journal of Engineering Mechanics,2008,134(11):970-982.
[6]Kim Y,Hurlebaus S,Langari R.Model-based multi-input,multi-output supervisory semi-active nonlinearfuzzy controller[J].Computer-Aided Civil and In-frastructure Engineering,2010,25(5):387-393.
[7]Kim Y,Langari R,Hurlebaus S.Control of a seismi-cally excited benchmark building using linear matrixinequality-based semiactive nonlinear fuzzy control[J].ASCE Journal of Structural Engineering,2010,136(8):1023-1026.
[8]Wu H S.Decentralized iterative learning control for aclass of large scale interconnected dynamical systems[J].Journal of Mathematical Analysis and Appli-cations,2007,327(1):233-245.
[9]邹立华,黄昆.基于磁流变阻尼器的多单体组合隔震结构模糊控制研究[J].计算力学学报,2007,24(3):365-384.(ZOU Li-hua,HUANG Kun.Study oncombined multi-unit isolated structures with Magne-to-rheological dampers by fuzzy control[J].ChineseJournal of Computational Mechanics,2007,24(3):365-384.(in Chinese))
[10]金峤,周晶.半主动TLCD对偏心结构的离散模糊变结构控制[J].计算力学学报,2007,24(1):50-56.(JIN Qiao,ZHOU Jing.TLCD semi-active control meth-odology for eccentric buildings using discrete-time fuzzyvariable structure law[J].Chinese Journal of Computa-tional Mechanics,2007,24(1):50-56.(in Chinese))
[11]汪权,王建国,张鸣祥.结构地震反应线性二次型最优迭代学习控制[J].应用科学学报,2010,28(2):197-202.(Wang Quan,Wang Jian-guo,Zhang Ming-xiang.Optimal control of structure seismic responseusing linear quadratic performance function and itera-tive learning[J].Journal of Applied Sciences,2010,28(2):197-202.(in Chinese))(下转第709页)
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