基于MR阻尼器的纵飘桥梁车辆制动力和地震作用下的混合控制
|
摘要
为了减小纵飘桥梁在制动力和地震作用下产生的较大主梁纵向位移,以某大跨度自锚式悬索桥为工程背景,开展基于MR阻尼器的减振(震)控制研究。通过车辆制动力作用下的振动控制和3种地震波下的减震控制仿真分析,获得各自的期望控制;以加速度的变化率作为控制阀值,建立车辆制动力和地震荷载作用的减振(震)混合控制系统;最后将该系统应用于实桥的减振(震)仿真分析。结果表明:Passive-on控制和基于模糊理论的半主动控制分别为车辆制动力下和地震荷载下的期望控制;在车辆制动力、实桥地震波、EL-Centro波和Takochi-oki波等作用下,混合控制系统具有可靠有效的荷载识别能力,在合成的外干扰力作用下实现了期望控制,减振(震)效果显著。
Since the longitudinal displacements of floating bridges subjected to dynamic loadings including vehicle braking forces or earthquake excitations maybe excessive, a hybrid control using MR dampers is investigated to mitigate the displacements. Firstly, the expected controls for vehicle braking forces and earthquake excitations are obtained, respectively. Then, a hybrid control system is established by the changing rate of accelerations. Finally, this system is applied in the longitudinal vibration responses reduction of a real bridge. The results show that the passive-on control and the semi-active fuzzy control are the expected controls for vehicle braking forces and earthquake excitations, respectively. The hybrid control has a good agreement with the expected controls for four dynamic loadings including the vehicle braking forces, the real bridge earthquake wave, the EL-Centro wave, and the Takochi-oki wave, so this system is reliable and effective. The hybrid control has the same performance as the expected controls for different loading combinations composed of vehicle braking forces and earthquake excitations.
Since the longitudinal displacements of floating bridges subjected to dynamic loadings including vehicle braking forces or earthquake excitations maybe excessive, a hybrid control using MR dampers is investigated to mitigate the displacements. Firstly, the expected controls for vehicle braking forces and earthquake excitations are obtained, respectively. Then, a hybrid control system is established by the changing rate of accelerations. Finally, this system is applied in the longitudinal vibration responses reduction of a real bridge. The results show that the passive-on control and the semi-active fuzzy control are the expected controls for vehicle braking forces and earthquake excitations, respectively. The hybrid control has a good agreement with the expected controls for four dynamic loadings including the vehicle braking forces, the real bridge earthquake wave, the EL-Centro wave, and the Takochi-oki wave, so this system is reliable and effective. The hybrid control has the same performance as the expected controls for different loading combinations composed of vehicle braking forces and earthquake excitations.
引文
[1]张永亮,陈兴冲,郭永强.塔梁间纵向弹性约束对铁路斜拉桥动力特性及地震反应的影响[J].铁道科学与工程学报,2011,8(2):21-26(Zhang Yongliang,Chen Xingchong,Guo Yongqiang.Influnce of longitudinal elastic constraints on dynamic characteristic and seismic response of railway cablestayed bridge[J].Journal of Railway Science and Engineering,2011,8(2):21-26(in Chinese))
[2]梁智垚,李建中.大跨度公铁两用斜拉桥阻尼器参数研究[J].同济大学学报:自然科学版,2007,35(6):728-733(Liang Zhiyao,Li Jianzhong.Research on damper parameters of long-span rail-cum-road cable-stayed bridge[J].Journal of Tongji University:Natural Science,2007,35(6):728-733(in Chinese))
[3]方海,刘伟庆,王仁贵.自锚式悬索桥结构纵向消能减震设计方法研究[J].地震工程与工程振动,2006,26(3):222-224(Fang Hai,Liu Weiqing,Wang Rengui.Design method of energy-dissipating earthquake-reduction along longitudinal direction of self-anchored suspension bridge[J].Earthquake Engineering and Engineering Vibration,2006,26(3):222-224(in Chinese))
[4]Chen Z Q,Wang X Y,Ko J M,et al.MR damping system for mitigating wind-rain induced vibration on Dongting Lake cable-stayed bridge[J].Wind and Structures,2004,7(5):293-304
[5]Ha Q P,Kwok N M,Nguyen M T,et al.Mitigation of seismic responses on building structures using MR dampers with Lyapunov-based control[J].Structural Control and Health Monitoring,2008,15(4):604-621
[6]瞿伟廉,刘嘉,涂建维,等.天兴洲公铁两用斜拉桥主梁纵向列车制动振动反应分析[J].地震工程与工程振动,2008,28(1):130-138(Qu Weilian,Liu Jia,Tu Jianwei,et al.Longitudinal response analysis of Tianxingzhou highway and railway combined cable-stayed bridge subjected to train braking and traffic[J].Earthquake Engineering and Engineering Vibration,2008,28(1):130-138(in Chinese))
[7]秦顺全,瞿伟廉.天兴洲公铁两用斜拉桥主梁纵向地震、列车制动及行车移动荷载响应的混合控制[J].桥梁建设,2008,(4):1-4(Qin Shunquan,Qu Weilian.Hybrid control of longitudinal vibration responses in deck of Tianxingzhou rail-cum-road cable-stayed bridge caused by earthquake,t r a i n b r a k i n g a n d v e h i c l e m o v i n g l o a d s[J].B r i d g e Construction,2008,(4):1-4(in Chinese))
[8]王成博,史志利,李忠献.大跨度斜拉桥地震反应MR阻尼器半主动控制[J].天津大学学报,2005,38(2):95-101(Wang Chengbo,Shi Zhili,Li Zhongxian.MR damper semi-active control of seismic responses of long-span cablestayed bridges[J].Journal of Tianjin University,2005,38(2):95-101(in Chinese))
[9]杨孟刚,陈政清,胡建华.自锚式悬索桥磁流变阻尼器减震控制研究[J].土木工程学报,2006,39(11):84-89(Yang Menggang,Chen Zhengqing,Hu Jianhua.Study on the seismic response control of self-anchored suspension bridges with MR dampers[J].China Civil Engineering Journal,2006,39(11):84-89(in Chinese))
[10]王俊伟,赵刚.某重型自卸车制动性能分析[J].合肥工业大学学报:自然科学版,2007,30(S):77-81(Wang Junwei,Zhao Gang.The analysis of braking capability for a 6×4 heavy dumper truck[J].Journal of Hefei University of Technology:Natural Science,2007,30(S):77-81(in Chinese))
[11]彭育辉,王良模.对四轮汽车制动过程计算机仿真的研究[J].福州大学学报:自然科学版,2003,31(2):182-185(Peng Yuhui,Wang Liangmo.A study on the simulation of vehicle's braking process[J].Journal of Fuzhou University:Natural Science Edition,2003,31(2):182-185(in Chinese))
[12]Yang G,Spencer Jr B F,Carlson J D,et al.Large-scale MR fluid dampers:modeling and dynamic performance considerations[J].Engineering Structures,2002,24(3):309-323
[2]梁智垚,李建中.大跨度公铁两用斜拉桥阻尼器参数研究[J].同济大学学报:自然科学版,2007,35(6):728-733(Liang Zhiyao,Li Jianzhong.Research on damper parameters of long-span rail-cum-road cable-stayed bridge[J].Journal of Tongji University:Natural Science,2007,35(6):728-733(in Chinese))
[3]方海,刘伟庆,王仁贵.自锚式悬索桥结构纵向消能减震设计方法研究[J].地震工程与工程振动,2006,26(3):222-224(Fang Hai,Liu Weiqing,Wang Rengui.Design method of energy-dissipating earthquake-reduction along longitudinal direction of self-anchored suspension bridge[J].Earthquake Engineering and Engineering Vibration,2006,26(3):222-224(in Chinese))
[4]Chen Z Q,Wang X Y,Ko J M,et al.MR damping system for mitigating wind-rain induced vibration on Dongting Lake cable-stayed bridge[J].Wind and Structures,2004,7(5):293-304
[5]Ha Q P,Kwok N M,Nguyen M T,et al.Mitigation of seismic responses on building structures using MR dampers with Lyapunov-based control[J].Structural Control and Health Monitoring,2008,15(4):604-621
[6]瞿伟廉,刘嘉,涂建维,等.天兴洲公铁两用斜拉桥主梁纵向列车制动振动反应分析[J].地震工程与工程振动,2008,28(1):130-138(Qu Weilian,Liu Jia,Tu Jianwei,et al.Longitudinal response analysis of Tianxingzhou highway and railway combined cable-stayed bridge subjected to train braking and traffic[J].Earthquake Engineering and Engineering Vibration,2008,28(1):130-138(in Chinese))
[7]秦顺全,瞿伟廉.天兴洲公铁两用斜拉桥主梁纵向地震、列车制动及行车移动荷载响应的混合控制[J].桥梁建设,2008,(4):1-4(Qin Shunquan,Qu Weilian.Hybrid control of longitudinal vibration responses in deck of Tianxingzhou rail-cum-road cable-stayed bridge caused by earthquake,t r a i n b r a k i n g a n d v e h i c l e m o v i n g l o a d s[J].B r i d g e Construction,2008,(4):1-4(in Chinese))
[8]王成博,史志利,李忠献.大跨度斜拉桥地震反应MR阻尼器半主动控制[J].天津大学学报,2005,38(2):95-101(Wang Chengbo,Shi Zhili,Li Zhongxian.MR damper semi-active control of seismic responses of long-span cablestayed bridges[J].Journal of Tianjin University,2005,38(2):95-101(in Chinese))
[9]杨孟刚,陈政清,胡建华.自锚式悬索桥磁流变阻尼器减震控制研究[J].土木工程学报,2006,39(11):84-89(Yang Menggang,Chen Zhengqing,Hu Jianhua.Study on the seismic response control of self-anchored suspension bridges with MR dampers[J].China Civil Engineering Journal,2006,39(11):84-89(in Chinese))
[10]王俊伟,赵刚.某重型自卸车制动性能分析[J].合肥工业大学学报:自然科学版,2007,30(S):77-81(Wang Junwei,Zhao Gang.The analysis of braking capability for a 6×4 heavy dumper truck[J].Journal of Hefei University of Technology:Natural Science,2007,30(S):77-81(in Chinese))
[11]彭育辉,王良模.对四轮汽车制动过程计算机仿真的研究[J].福州大学学报:自然科学版,2003,31(2):182-185(Peng Yuhui,Wang Liangmo.A study on the simulation of vehicle's braking process[J].Journal of Fuzhou University:Natural Science Edition,2003,31(2):182-185(in Chinese))
[12]Yang G,Spencer Jr B F,Carlson J D,et al.Large-scale MR fluid dampers:modeling and dynamic performance considerations[J].Engineering Structures,2002,24(3):309-323
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心