表孔弧形闸门横向地震振动控制研究
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摘要
通过对表孔弧形闸门的有限元计算分析,保留了最能反映结构低阶振型的梁结构,把板结构转化为附加质量作用到有关梁上,从而建立了三维简化模型。并利用三维有限元方法计算的结构动力特性与简化结构动力特性相等的原则修正弧形闸门简化力学模型,确定了等效的弧形闸门三维简化结构模型和系统参数。提出了在闸门的横向支臂处添加粘滞阻尼器的方案,通过计算可知:闸门添加粘滞阻尼器后,在不同开度下的横向振动响应都大大降低了。
Based on table hole dynamic-instability of finite element analysis,retained most can reflect structure low order modes of beam structure,the board structure into additional mass action to relevant beams,so as to establish a 3D simplified.And by using 3D finite element method to calculate the dynamic characteristics of the structure and simplify structure dynamic characteristics of equal principle correction dynamic-instability simplified mechanical model and determining the equivalent of the dynamic-instability 3D simplified structure model and system parameters.The author of the paper in the gate of lateral arms added between viscous dampers,through calculation,it is known that: gate add viscous dampers after opening,in different under the transverse vibration response are greatly reduced.
Based on table hole dynamic-instability of finite element analysis,retained most can reflect structure low order modes of beam structure,the board structure into additional mass action to relevant beams,so as to establish a 3D simplified.And by using 3D finite element method to calculate the dynamic characteristics of the structure and simplify structure dynamic characteristics of equal principle correction dynamic-instability simplified mechanical model and determining the equivalent of the dynamic-instability 3D simplified structure model and system parameters.The author of the paper in the gate of lateral arms added between viscous dampers,through calculation,it is known that: gate add viscous dampers after opening,in different under the transverse vibration response are greatly reduced.
引文
[1]杨世浩,瞿伟廉,郑明燕.弧形闸门流激振动及控制理论[J].长江科学院院报,2004(5):1-2.
[2]张晓平,张林让,吴杰芳.三峡导流底孔弧形闸门泄洪振动与控制研究[J].长江科学院院报,2003(1):2-3.
[3]杨世浩.水工弧形闸门流激振动的MR智能半主动控制仿真研究[D].武汉:武汉理工大学,2005.
[4]刘海浪,陈乐,蒋建国.水工平面闸门流激振动的激励机理[J].中国计量学院学报,2005(2):2-3.
[5]李火坤,练继建.水工弧形闸门流激振动特性物模-数模联合预测与安全分析[J].水力发电学报,2007(3):2-4.
[6]雷泽涛.基于主动控制-基底隔震混合控制系统的结构动力优化研究[D].成都:四川大学,2003.
[7]Yang J N,Li Z,Vongchavalitkal S.Stochastic Hybrid Control of Hysteretic Structures[J].Probabilistic EngineeringMechanics,1994,9(1-2):125-133.
[8]徐家云,蹇元平,常银昌,等.磁流变阻尼器的桥梁振动控制[J].自然灾害学报,2007,16(4):82-85.
[9]章继光.我国闸门振动研究情况综述[J].水力发电,1985(1):1-3.
[10]潘锦江,陈小涛.浅谈闸门的振动问题[J].广东水利水电,2001(2):1-3.
[2]张晓平,张林让,吴杰芳.三峡导流底孔弧形闸门泄洪振动与控制研究[J].长江科学院院报,2003(1):2-3.
[3]杨世浩.水工弧形闸门流激振动的MR智能半主动控制仿真研究[D].武汉:武汉理工大学,2005.
[4]刘海浪,陈乐,蒋建国.水工平面闸门流激振动的激励机理[J].中国计量学院学报,2005(2):2-3.
[5]李火坤,练继建.水工弧形闸门流激振动特性物模-数模联合预测与安全分析[J].水力发电学报,2007(3):2-4.
[6]雷泽涛.基于主动控制-基底隔震混合控制系统的结构动力优化研究[D].成都:四川大学,2003.
[7]Yang J N,Li Z,Vongchavalitkal S.Stochastic Hybrid Control of Hysteretic Structures[J].Probabilistic EngineeringMechanics,1994,9(1-2):125-133.
[8]徐家云,蹇元平,常银昌,等.磁流变阻尼器的桥梁振动控制[J].自然灾害学报,2007,16(4):82-85.
[9]章继光.我国闸门振动研究情况综述[J].水力发电,1985(1):1-3.
[10]潘锦江,陈小涛.浅谈闸门的振动问题[J].广东水利水电,2001(2):1-3.
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