土木工程结构振动的智能控制
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摘要
该文主要介绍磁流变液阻尼器及其对工程结构振动的智能控制方法。指出了磁流变液阻尼器及其智能控制方法在目前研究中存在的三个主要问题:磁流变液的稳定性指标达不到要求、磁流变液阻尼器的半主动控制策略还存在缺陷、相对于常规被动阻尼器的技术优势得不到体现。针对此问题,建立了使磁流变液的稳定性达到国际领先水平的磁流变液的设计与制备方法及技术,提出了半主动控制效果优于"被动-开"的改进的固定增量半主动控制策略,并应用该理论和技术解决了常规阻尼器所不能解决的三类工程结构振动控制问题。工程实例的设计和仿真分析表明:该研究解决了磁流变液阻尼器对土木工程结构振动智能控制中存在的三个问题,使磁流变液阻尼器的智能控制方法与常规的结构振动控制方法相比具有较强的技术优势和应用前景。
The paper introduces magneto-rheological damper and its intelligent control method for engineering structural vibration, and points out three existing problems: 1) sedimentation proof stability index can hardly satisfy the requirements for engineering application; 2) the shortages in semi-active control tactics; 3) the advantages of magneto-rheological damper are limited to ordinary dampers. Realizing the problems mentioned above, the paper establishes designing method and fabricating technologies for magneto-rheological fluids. Then, the modified fixed-incremental semi-active control tactics is proposed, whose control effect is better than that of passive-on control tactics. Meanwhile, the paper applies the theory and technologies to solving three kinds of engineering structural vibration control problems which can not be solved by ordinary dampers. Results show that the methods and techniques mentioned in the paper have solved the three problems. This research widens the application of intelligent control by magneto-rheological damper.
The paper introduces magneto-rheological damper and its intelligent control method for engineering structural vibration, and points out three existing problems: 1) sedimentation proof stability index can hardly satisfy the requirements for engineering application; 2) the shortages in semi-active control tactics; 3) the advantages of magneto-rheological damper are limited to ordinary dampers. Realizing the problems mentioned above, the paper establishes designing method and fabricating technologies for magneto-rheological fluids. Then, the modified fixed-incremental semi-active control tactics is proposed, whose control effect is better than that of passive-on control tactics. Meanwhile, the paper applies the theory and technologies to solving three kinds of engineering structural vibration control problems which can not be solved by ordinary dampers. Results show that the methods and techniques mentioned in the paper have solved the three problems. This research widens the application of intelligent control by magneto-rheological damper.
引文
[1]Qu Weilian,Chen Zhaohui,Xu Youlin.Dynamic analysis of wind-excited truss tower with friction dampers[J].Computer Structure,2001,79(32):2817―2831.
[2]Qu Weilian,Xu Youlin.Semi-active control of seismic response of tall buildings with podium structure using ER/MR dampers[J].Structural Design of Tall Building,2001,10(3):179―192.
[3]Xu Youlin,Qu Weilian,Chen Zhaohui.Control of wind-excited truss tower using semi-active friction damper[J].Journal of Structure Engineering,ASCE,2001,127(8):861―868.
[4]Qu Weilian,Chen Bo.Wind-induced response sem-active control of large span transmission tower using MR dampers[C].Third China-Japan-US Symposium on Structural Health Monitoring and Control and Fourth Chinese National Conference on Structural Control,2004.
[5]Liang Shuguo,Ma Z X.An analysis of wind induced responses for Dashengguan electrical transmission tower-line system across the Yangtze River[C].Proceedings of the10th International Conference on Wind Engineering.Copenhagen,Denmark,1999:565―570.
[6]中铁大桥局股份有限公司,武汉理工大学.武汉天兴洲公铁两用长江大桥关键技术研究之十七:MR智能阻尼器和流体阻尼器对天兴洲大桥纵向地震、列车制动和列车行走效应的混合控制[R].武汉:武汉理工大学,2007.Zhongtie Major Bridge Engineering Group Co.Ltd,Wuhan University of Technology.China Zhongtie Major Bridge Engineering Group Co.Ltd,Wuhan university of technology.Survey Report:The research on intelligent hybrid control for longitudinal vibration response of deck of Tian Xingzhou cable-stayed bridge caused by earthquake,train braking and train traffic[R].Wuhan:Wuhan University of Technology,2007.(in Chinese)
[7]秦顺全,瞿伟廉.天兴洲公铁两用斜拉桥主梁纵向振动响应的混合控制[J].桥梁建设,2008,187(4):1―4.Qin Shunquan,Qu Weilian.Hybrid control of longitud-inal vibration responses in deck of Tianxingzhou rail-cum-road cable-stayed bridge caused by earthquake,train braking and vehicle moving loads[J].Bridge Construction,2008,187(4):1―4.(in Chinese)
[8]瞿伟廉,刘嘉,涂建维.500kN足尺磁流变液阻尼器设计的关键技术[J].哈尔滨地震工程与工程振动,2007,27(2):124―130.Qu Weilian,Liu Jia,Tu Jianwei.Crucial techniques for design of500kN large-scale MR damper[J].Harbin Earthquake Engineering and Engineering Vibration,2007,27(2):124―130.(in Chinese)
[9]涂建维.MR阻尼器的研究及其在升船机地震鞭梢效应上的应用[D].武汉:武汉理工大学,2003.Tu Jianwei.Investigation of MR dampers and intelligent control on Seismic whiplash effect of ship-lifting structure[D].Wuhan:Wuhan University of Technology,2003.(in Chinese)
[10]陈波.高耸塔架结构振动反应的智能混合控制[D].武汉:武汉理工大学,2003.Chen Bo.Smart hybrid control for vibrant responses of high rise truss tower[D].Wuhan:Wuhan University of Technology,2003.(in Chinese)
[2]Qu Weilian,Xu Youlin.Semi-active control of seismic response of tall buildings with podium structure using ER/MR dampers[J].Structural Design of Tall Building,2001,10(3):179―192.
[3]Xu Youlin,Qu Weilian,Chen Zhaohui.Control of wind-excited truss tower using semi-active friction damper[J].Journal of Structure Engineering,ASCE,2001,127(8):861―868.
[4]Qu Weilian,Chen Bo.Wind-induced response sem-active control of large span transmission tower using MR dampers[C].Third China-Japan-US Symposium on Structural Health Monitoring and Control and Fourth Chinese National Conference on Structural Control,2004.
[5]Liang Shuguo,Ma Z X.An analysis of wind induced responses for Dashengguan electrical transmission tower-line system across the Yangtze River[C].Proceedings of the10th International Conference on Wind Engineering.Copenhagen,Denmark,1999:565―570.
[6]中铁大桥局股份有限公司,武汉理工大学.武汉天兴洲公铁两用长江大桥关键技术研究之十七:MR智能阻尼器和流体阻尼器对天兴洲大桥纵向地震、列车制动和列车行走效应的混合控制[R].武汉:武汉理工大学,2007.Zhongtie Major Bridge Engineering Group Co.Ltd,Wuhan University of Technology.China Zhongtie Major Bridge Engineering Group Co.Ltd,Wuhan university of technology.Survey Report:The research on intelligent hybrid control for longitudinal vibration response of deck of Tian Xingzhou cable-stayed bridge caused by earthquake,train braking and train traffic[R].Wuhan:Wuhan University of Technology,2007.(in Chinese)
[7]秦顺全,瞿伟廉.天兴洲公铁两用斜拉桥主梁纵向振动响应的混合控制[J].桥梁建设,2008,187(4):1―4.Qin Shunquan,Qu Weilian.Hybrid control of longitud-inal vibration responses in deck of Tianxingzhou rail-cum-road cable-stayed bridge caused by earthquake,train braking and vehicle moving loads[J].Bridge Construction,2008,187(4):1―4.(in Chinese)
[8]瞿伟廉,刘嘉,涂建维.500kN足尺磁流变液阻尼器设计的关键技术[J].哈尔滨地震工程与工程振动,2007,27(2):124―130.Qu Weilian,Liu Jia,Tu Jianwei.Crucial techniques for design of500kN large-scale MR damper[J].Harbin Earthquake Engineering and Engineering Vibration,2007,27(2):124―130.(in Chinese)
[9]涂建维.MR阻尼器的研究及其在升船机地震鞭梢效应上的应用[D].武汉:武汉理工大学,2003.Tu Jianwei.Investigation of MR dampers and intelligent control on Seismic whiplash effect of ship-lifting structure[D].Wuhan:Wuhan University of Technology,2003.(in Chinese)
[10]陈波.高耸塔架结构振动反应的智能混合控制[D].武汉:武汉理工大学,2003.Chen Bo.Smart hybrid control for vibrant responses of high rise truss tower[D].Wuhan:Wuhan University of Technology,2003.(in Chinese)
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