间断型三向TMD桥梁颤振控制
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摘要
为了控制桥梁结构风致振动,提出了间断型三向调谐质量阻尼器(TMD)的概念,旨在提高桥梁结构的颤振临界风速,并提出了间断型三向TMD控制系统及其相应的理论和计算方法.间断型三向TMD能同时控制桥梁结构横向、竖向和扭转三个方向的风致振动.通过最优控制理论计算得出系统的最优参数,通过风洞试验和Ansys软件模拟计算,得到重要结论:参数合理的间断型三向TMD系统能显著提高桥梁结构颤振临界风速.
To control the wind-induced vibration of the bridge structure,the paper presents a discrete three-direction tuned mass damper(TMD) control system to increase the flutter critical wind speed,and correspondingly,the theory and the calculation method.The horizontal,vertical vibration and torsional vibration can be well controlled with the system.Based on optimal control theory,the optimal parameters of the system are obtained.Wind tunnel test and the ansys simulation reveal that with the discrete three-direction TMD control system,the flutter critical wind speed of bridges improves significantly.
To control the wind-induced vibration of the bridge structure,the paper presents a discrete three-direction tuned mass damper(TMD) control system to increase the flutter critical wind speed,and correspondingly,the theory and the calculation method.The horizontal,vertical vibration and torsional vibration can be well controlled with the system.Based on optimal control theory,the optimal parameters of the system are obtained.Wind tunnel test and the ansys simulation reveal that with the discrete three-direction TMD control system,the flutter critical wind speed of bridges improves significantly.
引文
[1]宋锦忠,林志兴,徐建英.桥梁抗风气动措施的研究及应用[J].同济大学学报:自然科学版,2002,30(5):618.SONG Jinzhong,LIN Zhixing,XU Jianying.Research andappliance of aerodynamic measures about wind-resistance ofbridges[J].Journal of Tongji University:Natural Science,2002,30(5):618.
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[3]Chang C C,ASCE M,Gu M,et al.Tuned mass dampers fordual-mode buffeting control of bridges[J].Journal of BridgeEngineering,2003,8(4):237.
[4]Xue S D,Ko J M,Xu Y L.Wind-induced vibration control ofbridges using liquid column damper[J].EarthquakeEnginerring and Engineering Vibration,2002,1(2):271.
[5]梁剑青,欧进萍.大跨斜拉桥桥面风致抖振的粘滞阻尼控制分析[J].地震工程与工程振动,2006,26(1):139.LIANG Jianqing,OU Jinping.Lateral buffeting control of longspan cable stayed bridge deck by viscous dampers[J].Earthquake Engineering and Engineering Vibration,2006,26(1):139.
[6]姜天华,霍凯成,瞿伟廉.天兴洲长江大桥风致抖振反应的控制[J].武汉理工大学学报,2007,29(1):121.JIANG Tianhua,HUO Kaicheng,QU Weilian.Control of windinduced lateral buffeting responses of tianxingzhou bridge[J].Journal of Wuhan University of Technology,2007,29(1):121.
[7]曾宪武,韩大建.多重双频率调谐质量阻尼器制振性能及对桥梁抖振的控制[J].工程力学,2006,23(1):74.ZENG Xianwu,HAN Dajian.Vibration suppressioncharacteristics of multiple tuned mass dampers with dualfrequencies and its application to buffeting control of bridges[J].Engineering Mechanics,2006,23(1):74.
[8]李春祥,余琼,王肇民.大跨桥梁结构扭转振动的MTMD控制研究[J].特种结构,2002,19(4):66.LI Chunxiang,YU Qiong,WANG Zhaomin.Torsional vibrationcontrol of large span bridges using multiple tuned mass dampers[J].Special Structure,2002,19(4):66.
[9]项海帆.现代桥梁抗风理论与实践[M].北京:人民交通出版社,2005.XIANG Haifan.Theory and practice of the modern bridges[M].Beijing:China Communications Press,2005.
[10]陈政清.桥梁风工程[M].北京:人民交通出版社,2005.CHEN Zhengqing.Wind engineering of bridges[M].Beijing:China Communications Press,2005.
[11]徐家云,刘科,常英,等.桥梁连续型控制颤振理论研究[J].华中科技大学学报,2011,39(5):55.XU Jiayun,LIU Ke,CHANG Ying,et al.Continuouscontrolling flutter theory of the bridges structures[J].Journalof Huazhong University of Science and Technology,2011,39(5):55.
[2]林志兴,葛耀君,曹丰产,等.钢箱梁桥的抗风问题及其对策研究[J].同济大学学报:自然科学版,2002,30(5):614.LIN Zhixing,GE Yaojun,CAO Fengchan,et al.Wind resistantstudy and prevention research of steel box girders[J].Journalof Tongji University:Natural Science,2002,30(5):614.
[3]Chang C C,ASCE M,Gu M,et al.Tuned mass dampers fordual-mode buffeting control of bridges[J].Journal of BridgeEngineering,2003,8(4):237.
[4]Xue S D,Ko J M,Xu Y L.Wind-induced vibration control ofbridges using liquid column damper[J].EarthquakeEnginerring and Engineering Vibration,2002,1(2):271.
[5]梁剑青,欧进萍.大跨斜拉桥桥面风致抖振的粘滞阻尼控制分析[J].地震工程与工程振动,2006,26(1):139.LIANG Jianqing,OU Jinping.Lateral buffeting control of longspan cable stayed bridge deck by viscous dampers[J].Earthquake Engineering and Engineering Vibration,2006,26(1):139.
[6]姜天华,霍凯成,瞿伟廉.天兴洲长江大桥风致抖振反应的控制[J].武汉理工大学学报,2007,29(1):121.JIANG Tianhua,HUO Kaicheng,QU Weilian.Control of windinduced lateral buffeting responses of tianxingzhou bridge[J].Journal of Wuhan University of Technology,2007,29(1):121.
[7]曾宪武,韩大建.多重双频率调谐质量阻尼器制振性能及对桥梁抖振的控制[J].工程力学,2006,23(1):74.ZENG Xianwu,HAN Dajian.Vibration suppressioncharacteristics of multiple tuned mass dampers with dualfrequencies and its application to buffeting control of bridges[J].Engineering Mechanics,2006,23(1):74.
[8]李春祥,余琼,王肇民.大跨桥梁结构扭转振动的MTMD控制研究[J].特种结构,2002,19(4):66.LI Chunxiang,YU Qiong,WANG Zhaomin.Torsional vibrationcontrol of large span bridges using multiple tuned mass dampers[J].Special Structure,2002,19(4):66.
[9]项海帆.现代桥梁抗风理论与实践[M].北京:人民交通出版社,2005.XIANG Haifan.Theory and practice of the modern bridges[M].Beijing:China Communications Press,2005.
[10]陈政清.桥梁风工程[M].北京:人民交通出版社,2005.CHEN Zhengqing.Wind engineering of bridges[M].Beijing:China Communications Press,2005.
[11]徐家云,刘科,常英,等.桥梁连续型控制颤振理论研究[J].华中科技大学学报,2011,39(5):55.XU Jiayun,LIU Ke,CHANG Ying,et al.Continuouscontrolling flutter theory of the bridges structures[J].Journalof Huazhong University of Science and Technology,2011,39(5):55.
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