车桥耦合振动系统的半主动控制法
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摘要
在已研究的车桥耦合振动动力学模型的基础上,针对简支桥梁模型,将车载对桥梁的耦合作用力看作是外干扰,提出了一种对桥梁的半主动控制模型。根据哈密顿原理推导了控制模型,发现这种模型自身具有状态反馈的特点;针对四分之一车辆与桥梁耦合振动建立的控制模型,经过搭建Simulink仿真,可以看出该模型对于跨中位移以及耦合力作用点位移振幅的削减幅度达80%左右,由此说明了半主动控制模型具有良好的控制效果。
Based on the dynamic model of vehicle-bridge coupled vibration,in connection with the simply supported bridge model,the coupled acting force from vehicle to bridge is considered to be external disturbance,and the semi-active control model of bridge is proposed in this paper.The controlling model is deduced,which is based on the Hamilton principle,and it is found that this model features state feedback by itself.To the controlling model of quarter vehicle-bridge coupled vibration system,the fine controlling effect is demonstrated by using the Simulink.
Based on the dynamic model of vehicle-bridge coupled vibration,in connection with the simply supported bridge model,the coupled acting force from vehicle to bridge is considered to be external disturbance,and the semi-active control model of bridge is proposed in this paper.The controlling model is deduced,which is based on the Hamilton principle,and it is found that this model features state feedback by itself.To the controlling model of quarter vehicle-bridge coupled vibration system,the fine controlling effect is demonstrated by using the Simulink.
引文
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[12]李延强,杜彦良.结构控制技术在桥梁工程中的应用综述[J].地震工程与工程振动,2009,29(3):160-166.
[2]彭献,殷新锋,茆秋华.车-桥系统的振动分析及控制[J].动力学与控制学报,2006,9,4(3):253-258.
[3]Kawatani M,Komatsu S.Nonstationary random response of highwaybridges under a series of moving vehicles[J].Structural Engineering/Earthquake Engineering,JSCE,1988,5(2):285-292.
[4]Kawatani M,Shimada T.Nonstationary random response and impactof girder bridges under moving vehicles[J].Proceeding ofJSCE,1988,398(10):303-309.
[5]Wang T L,Huang D Z.Cable-stayed bridge vibration due to roadsurface roughness[J].Journal of Structural Engineering ASCE,1992,118(5):1354-1373.
[6]吴光华,王宗林,陈光.车桥振动问题现状研究与分析[J].交通标准化,2007,11:100.
[7]肖新标,沈火明.移动载荷作用下的桥梁振动及其TMD控制[J].振动与冲击,2005,24(2):58-61.
[8]沈火明,肖艳平.TMD控制下车桥动力特征研究[J].西华大学学报:自然科学版,2005,24(4):24-27.
[9]亓兴军.桥梁减震半主动控制研究[D].北京:中国地震局物理研究所,2006.
[10]董胜利,李小军,兴军.简支梁桥减震半主动控制算法研究[J].地震工程与工程振动,2007,27(4):156-160.
[11]陈云侠.桥梁结构地震响应半主动控制研究[D].大连:大连理工大学,2008.
[12]李延强,杜彦良.结构控制技术在桥梁工程中的应用综述[J].地震工程与工程振动,2009,29(3):160-166.
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