多重调谐质量调谐阻尼器的磁浮道岔减振方案
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摘要
研究目的:对于如长沙磁浮工程已经通车的道岔,道岔结构竖向振动加速度达2. 37g以上,均远超过规范规定的无砟轨道地段不应大于0. 5g,影响道岔使用寿命、车辆寿命及旅客舒适度,需要测试分析振动超标产生原因,寻求减振方案,既要使振动满足不大于0. 5g要求,又要尽可能少增加道岔梁质量影响道岔梁转动速度。研究结论:(1)经测试分析,长沙磁浮工程道岔梁振动为车轨共振,可采用减振器消能减振;(2)磁浮列车不同于轮轨列车,受电磁悬浮控制系统影响,列车自振频率存在一定波动,采用多重调谐质量调谐阻尼器(TMD)的方式控制一定激振频率带的振动,达到控制频率能全覆盖;(3)采用模糊控制理论的多重调谐质量调谐阻尼器(TMD)适用于处理所有因共振引起的结构振动超标。
Research purposes: For the turnout of Changsha Maglev Project,the vertical vibration acceleration of the turnout structure is more than 2. 37 g,which is far beyond the ballastless track allowable value in the code. This may cause harmful effect to the service life of the turnout and the vehicle,influences the comfort of passengers. It is necessary to test and analyze the causes of vibration exceeding the standard,and seek the vibration reduction method,so that the vibration can not only meet the requirement of less than 0. 5 g,but also increase the quality of turnout beam as little as possible which affects the turnout pulling speed.Research conclusions:( 1) The vibration of the turnout beam of Changsha Maglev Project is train-rail resonance,which can be absorbed by vibration absorber.( 2) Maglev train is different from wheel-rail train,because of the influence of electromagnetic levitation control system,the natural frequency of train fluctuates,the vibration of certain excitation frequency band can be controlled by multiple tuned mass damper( TMD),and the control frequency can be fully covered.( 3) The multiple tuned mass tuned damper( TMD) based on fuzzy control theory is suitable for handling all structural vibration caused by resonance.
Research purposes: For the turnout of Changsha Maglev Project,the vertical vibration acceleration of the turnout structure is more than 2. 37 g,which is far beyond the ballastless track allowable value in the code. This may cause harmful effect to the service life of the turnout and the vehicle,influences the comfort of passengers. It is necessary to test and analyze the causes of vibration exceeding the standard,and seek the vibration reduction method,so that the vibration can not only meet the requirement of less than 0. 5 g,but also increase the quality of turnout beam as little as possible which affects the turnout pulling speed.Research conclusions:( 1) The vibration of the turnout beam of Changsha Maglev Project is train-rail resonance,which can be absorbed by vibration absorber.( 2) Maglev train is different from wheel-rail train,because of the influence of electromagnetic levitation control system,the natural frequency of train fluctuates,the vibration of certain excitation frequency band can be controlled by multiple tuned mass damper( TMD),and the control frequency can be fully covered.( 3) The multiple tuned mass tuned damper( TMD) based on fuzzy control theory is suitable for handling all structural vibration caused by resonance.
引文
[1]刘德生,李杰,周丹峰.EMS型磁悬浮列车模块悬浮系统的模型参考自适应控制[J].微计算机信息,2006(25):113-115.Liu Desheng,Li Jie,Zhou Danfeng.Model Reference Adaptive Control for Maglev Module Suspension System[J].Microcomputer Information,2006(25):113-115.
[2]仲建华,杜子学,何希和.跨坐式单轨交通车辆道岔结构及分析[M].北京:人民交通出版社,2013:1-14.Zhong Jianhua,Du Zixue,He Xihe.Vehicle Switche Structure and Analysis of Straddle-type Monorail Transportation[M].Beijing:China Communications Press,2013:1-14.
[3]葛楠,陈海彬.结构减震隔震分析与计算[M].北京:中国电力出版社,2013:17-22.Ge Nan,Chen Haibin.Structure Damping Vibration Isolation Vibration Analysis[M].Beijing:China Electric Power Press.2013:17-22.
[4]刘德生,李杰,常文森.EMS型磁浮列车模块的运动耦合研究[J].铁道学报,2006(3):22-26.Liu Desheng,Li Jie,Chang Wensen.Study on Motional Coupling of Single EMS Module[J].Journal of the China Railway Society,2006(9):321-328.
[5]Ray Clough,Joseph Penzien.Dynamics of Structures[M].Beijing:Higher Education Press,2006:147-190.
[6]杨兴望,单德山,李乔.重庆轻轨袁家岗车站桥动力性能分析[J].中国铁道科学,2004(6):77-81.Yang Xingwang,Shan Deshan,Li Qiao.Dynamic Property Analysis of Yuanjiagang Station Bridge on Chongqing Light Rail Transit[J].China Railway Science,2004(6):77-81.
[7]施洲,蒲黔辉,高玉峰,等.重庆市跨座式单轨交通系统动力试验研究[J].振动与冲击,2008(12):101-106.Shi Zhou,Pu Qianhui,Gao Yufeng,etc.Dynamic Testing of Straddle-type Monorail Vehicles System in Chongqing City[J].Journal of Vibration and Shock,2008(12):101-106.
[8]CJJ/T 262-2017,中低速磁浮交通设计规范[S].CJJ/T 262-2017,Code for Design of Medium and Low Speed Maglev Transit[S].()
[2]仲建华,杜子学,何希和.跨坐式单轨交通车辆道岔结构及分析[M].北京:人民交通出版社,2013:1-14.Zhong Jianhua,Du Zixue,He Xihe.Vehicle Switche Structure and Analysis of Straddle-type Monorail Transportation[M].Beijing:China Communications Press,2013:1-14.
[3]葛楠,陈海彬.结构减震隔震分析与计算[M].北京:中国电力出版社,2013:17-22.Ge Nan,Chen Haibin.Structure Damping Vibration Isolation Vibration Analysis[M].Beijing:China Electric Power Press.2013:17-22.
[4]刘德生,李杰,常文森.EMS型磁浮列车模块的运动耦合研究[J].铁道学报,2006(3):22-26.Liu Desheng,Li Jie,Chang Wensen.Study on Motional Coupling of Single EMS Module[J].Journal of the China Railway Society,2006(9):321-328.
[5]Ray Clough,Joseph Penzien.Dynamics of Structures[M].Beijing:Higher Education Press,2006:147-190.
[6]杨兴望,单德山,李乔.重庆轻轨袁家岗车站桥动力性能分析[J].中国铁道科学,2004(6):77-81.Yang Xingwang,Shan Deshan,Li Qiao.Dynamic Property Analysis of Yuanjiagang Station Bridge on Chongqing Light Rail Transit[J].China Railway Science,2004(6):77-81.
[7]施洲,蒲黔辉,高玉峰,等.重庆市跨座式单轨交通系统动力试验研究[J].振动与冲击,2008(12):101-106.Shi Zhou,Pu Qianhui,Gao Yufeng,etc.Dynamic Testing of Straddle-type Monorail Vehicles System in Chongqing City[J].Journal of Vibration and Shock,2008(12):101-106.
[8]CJJ/T 262-2017,中低速磁浮交通设计规范[S].CJJ/T 262-2017,Code for Design of Medium and Low Speed Maglev Transit[S].()