工业振动问题的粘滞阻尼消能控制
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摘要
主要研究了粘滞阻尼减振技术在复杂工业振动问题中的分析方法及应用.对江苏省某化工厂房的随机冲击、非平稳、多频振动问题进行了动力测试和信号处理,采用相干函数及同源振动分析方法确定了振源及振动传递途径;并结合有限元技术对厂房结构进行了粘滞阻尼减振时程分析及现场改造.结果表明,相比加强结构刚度的传统减振方法,附加粘滞流体阻尼器的消能控制技术具有显著的减振效果,成为解决复杂工业振动问题的有效手段,可为类似工程提供借鉴和参考.
This paper mainly studies the analysis method and application of energy dissipation technology with viscous dampers in complex industrial vibration.The dynamic testing and signal processing of a chemical plant with stochastic shocks,non-stable and multi-frequency vibration in Jiangsu province have been taken;and the vibration sources and vibration transfer approaches have been determined by means of the coherence function and the homologous vibration analysis method.Combined with finite element technique,the viscous damping vibration reduction time-history analysis and on-site reconstruction of the plant structure have been done.The results show that the technology of energy dissipation with viscous dampers has an obvious effect compared with the traditional method of strengthening structure stiffness;and it is an effective means for solving complex industrial vibration so as to provide for reference and enlightenment for similar projects.
This paper mainly studies the analysis method and application of energy dissipation technology with viscous dampers in complex industrial vibration.The dynamic testing and signal processing of a chemical plant with stochastic shocks,non-stable and multi-frequency vibration in Jiangsu province have been taken;and the vibration sources and vibration transfer approaches have been determined by means of the coherence function and the homologous vibration analysis method.Combined with finite element technique,the viscous damping vibration reduction time-history analysis and on-site reconstruction of the plant structure have been done.The results show that the technology of energy dissipation with viscous dampers has an obvious effect compared with the traditional method of strengthening structure stiffness;and it is an effective means for solving complex industrial vibration so as to provide for reference and enlightenment for similar projects.
引文
[1]周福霖.工程结构减振控制[M].北京:地震出版社,1997.
[2]孙广俊,李爱群.安装粘滞阻尼消能支撑结构随机地震反应分析[J].振动与冲击,2009,28(10):117-121.
[3]Yamaguchi Hiroshi,Zhang XinRong,Nishioka K,etal.Investigation of impulse response of an ER fluidviscous damper[J].Journal of Intelligent MaterialSystems and Structures,2010,21(4):423-435.
[4]Tsai C S,Ho China-Lun,Chang Chih-Wei,ChenKuei-Chi.Experimental investigation on steel struc-tures equipped with fluid viscous damper[J].Ameri-can Society of Mechanical Engineers,2001,428(2):95-101.
[5]Lee D,Taylor D P.Viscous damper development andfuture trends[J].Structure Design of Tall Building,2001,10(5):311-320.
[6]Vulcano,Alfonso,Mazza,Fabio.Comparative studyof the seismic performance of frames using differencedissipative braces[J].Wind and Structures,2000,10(3):233-247.
[7]周云,汤统壁,邓雪松,吴从晓.耗能减振结构基于性能简化抗震设计方法研究[J].土木工程结构,2008,41(6):14-20.
[8]Constantinous M C,Symans M D.Experimental andanalytical investigation of seismic response of struc-tures with supplemental fluid viscous dampers[R].Technical Research Report,1992,NCEER-92-0032.
[9]杨国华,李爱群,程文.某化工厂房结构采用粘滞流体阻尼器的减振设计研究[J].工业建筑,2003,6(7):7-10.
[10]Hwang Jenn-Shin.Seismic design of building struc-tures with viscous dampers[J].International TrainingPrograms for Seismic Design of Building Structures,1999,134(1):22-31.
[11]欧进萍,吴斌,龙旭.耗能结构的抗震设计方法[J].地震工程与工程振动,1998,18(2):98-10.
[2]孙广俊,李爱群.安装粘滞阻尼消能支撑结构随机地震反应分析[J].振动与冲击,2009,28(10):117-121.
[3]Yamaguchi Hiroshi,Zhang XinRong,Nishioka K,etal.Investigation of impulse response of an ER fluidviscous damper[J].Journal of Intelligent MaterialSystems and Structures,2010,21(4):423-435.
[4]Tsai C S,Ho China-Lun,Chang Chih-Wei,ChenKuei-Chi.Experimental investigation on steel struc-tures equipped with fluid viscous damper[J].Ameri-can Society of Mechanical Engineers,2001,428(2):95-101.
[5]Lee D,Taylor D P.Viscous damper development andfuture trends[J].Structure Design of Tall Building,2001,10(5):311-320.
[6]Vulcano,Alfonso,Mazza,Fabio.Comparative studyof the seismic performance of frames using differencedissipative braces[J].Wind and Structures,2000,10(3):233-247.
[7]周云,汤统壁,邓雪松,吴从晓.耗能减振结构基于性能简化抗震设计方法研究[J].土木工程结构,2008,41(6):14-20.
[8]Constantinous M C,Symans M D.Experimental andanalytical investigation of seismic response of struc-tures with supplemental fluid viscous dampers[R].Technical Research Report,1992,NCEER-92-0032.
[9]杨国华,李爱群,程文.某化工厂房结构采用粘滞流体阻尼器的减振设计研究[J].工业建筑,2003,6(7):7-10.
[10]Hwang Jenn-Shin.Seismic design of building struc-tures with viscous dampers[J].International TrainingPrograms for Seismic Design of Building Structures,1999,134(1):22-31.
[11]欧进萍,吴斌,龙旭.耗能结构的抗震设计方法[J].地震工程与工程振动,1998,18(2):98-10.
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