永磁式调谐质量阻尼器参数研究
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摘要
为定量地对永磁式调谐质量阻尼器诸多参数进行设计,从电磁感应最基本的原理出发,运用理论推导,针对永磁式调谐质量阻尼器的减振模型建立了阻尼比和电、磁之间的解析表达式。分析结果表明:阻尼比与磁场强度的二次方、金属导体板厚度的二次方、磁体在质量运动垂直方向的长度成正比,与金属板的电导率成反比,另外阻尼比随着磁体和金属板的间距增加而迅速衰减。根据理论成果搭建了试验平台,得到实测阻尼比及其变化趋势和理论保持一致。
In order to design the parameters of the permanent magnet tuned mass damper in quantity,based on the basic principle of the electromagnetic induction,the analytical expression of the damping ratio and electron and magnet was established in the light of the damping model of the permanent magnet tuned mass damper,using theoretical derivation.The results of the analysis showed that the damping ratio was directly proportional to the square of the magnetic intensity,the square of the thickness of the metal conductor and the length of the magnet in the vertical direction of the quality movement,but inversely proportional to the electrical conductivity of the metal conductor;in addition,the damping ratio rapidly attenuated as the spacing between the magnet and the metal conductor increased.In accordance with the theoretical achievements,the testing platform was set up,and the measured damping ratio and its changing trend were found consistent to the theoretical calculation values.
In order to design the parameters of the permanent magnet tuned mass damper in quantity,based on the basic principle of the electromagnetic induction,the analytical expression of the damping ratio and electron and magnet was established in the light of the damping model of the permanent magnet tuned mass damper,using theoretical derivation.The results of the analysis showed that the damping ratio was directly proportional to the square of the magnetic intensity,the square of the thickness of the metal conductor and the length of the magnet in the vertical direction of the quality movement,but inversely proportional to the electrical conductivity of the metal conductor;in addition,the damping ratio rapidly attenuated as the spacing between the magnet and the metal conductor increased.In accordance with the theoretical achievements,the testing platform was set up,and the measured damping ratio and its changing trend were found consistent to the theoretical calculation values.
引文
[1]汪正兴.结构振动控制参数的多目标满意优化方法及其应用(博士学位论文)[D].北京:清华大学,2006.
[2]陈政清,华旭刚.人行桥的振动与动力设计[M].北京:人民交通出版社,2009.
[3]欧进萍.结构振动控制[M].北京:科学出版社,2003.
[4]李爱群.工程结构减振控制[M].北京:机械工业出版社,2007.
[5]Kim Y B,Hwang W G,Kee C D.Active VibrationControl of a Suspension System Using an Electromag-netic Damper[J].Journal of Automobile Engineering,2001,215(8):865-873.
[6]Liu J,Liu K F.A Tunable Electromagnetic VibrationAbsorber:Characterization and Application[J].Journalof Sound and Vibration,2006,295(3-5):708-724.
[7]Kawamoto Y,Suda Y.Modeling of ElectromagneticDamper for Automobile Suspension[J].Journal of Sys-tem Design and Dynamics,2007,1(3):524―535.
[8]朱坤,邹向阳,王晓天.新型电磁式阻尼器性能初步研究[J].世界地震工程,2009,25(4):194-198.
[9]王少纯,邓宗全.新型涡流磁阻尼月球着陆器[J].上海交通大学学报,2006,40(12):2151-2154.
[10]陈政清.永磁式电涡流调谐质量阻尼器[P].中国:201010022003.7,2010.
[11]赵近芳.大学物理学[M].北京:北京邮电大学出版社,2002.
[2]陈政清,华旭刚.人行桥的振动与动力设计[M].北京:人民交通出版社,2009.
[3]欧进萍.结构振动控制[M].北京:科学出版社,2003.
[4]李爱群.工程结构减振控制[M].北京:机械工业出版社,2007.
[5]Kim Y B,Hwang W G,Kee C D.Active VibrationControl of a Suspension System Using an Electromag-netic Damper[J].Journal of Automobile Engineering,2001,215(8):865-873.
[6]Liu J,Liu K F.A Tunable Electromagnetic VibrationAbsorber:Characterization and Application[J].Journalof Sound and Vibration,2006,295(3-5):708-724.
[7]Kawamoto Y,Suda Y.Modeling of ElectromagneticDamper for Automobile Suspension[J].Journal of Sys-tem Design and Dynamics,2007,1(3):524―535.
[8]朱坤,邹向阳,王晓天.新型电磁式阻尼器性能初步研究[J].世界地震工程,2009,25(4):194-198.
[9]王少纯,邓宗全.新型涡流磁阻尼月球着陆器[J].上海交通大学学报,2006,40(12):2151-2154.
[10]陈政清.永磁式电涡流调谐质量阻尼器[P].中国:201010022003.7,2010.
[11]赵近芳.大学物理学[M].北京:北京邮电大学出版社,2002.
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