磁流变阻尼器减振特性实验研究
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摘要
以铝制圆筒自由梁为研究对象,建立了磁流变阻尼器振动实验系统,研究了磁流变阻尼器对结构振动特性的影响以及磁流变阻尼器的减振特性。比较了在有无磁流变阻尼器和阻尼器控制电压不同的情况下结构的频响函数,分别以正弦信号和随机信号对梁进行激励,测试了梁在阻尼器不同工况条件下的振动响应。研究结果表明:仅在较窄的频段内,磁流变阻尼器能够改变梁的振动特性,降低频响函数的幅值;在结构振动的低频区,磁流变阻尼器减振效果明显,在高频区对结构的振动响应影响不大。
A vibration experimental system of a cylindric aluminium beam with magneto-rheological(MR) dampers is established.The influence of the MR damper on the structure vibration behaviour is studied,and the vibration reduction is researched.The frequency response functions of the beam with and without the MR dampers under different control voltage are compared.The beam is excited by sine signals and a random signal respectively and the responses are measured with the MR dampers working in different conditions.The research result shows that the MR damper changes the vibration characteristic of the beam only in a narrow frequency domain,and the vibration reduction performance of the MR damper is significant in the low frequency domain but not so effective in the high frequency domain.
A vibration experimental system of a cylindric aluminium beam with magneto-rheological(MR) dampers is established.The influence of the MR damper on the structure vibration behaviour is studied,and the vibration reduction is researched.The frequency response functions of the beam with and without the MR dampers under different control voltage are compared.The beam is excited by sine signals and a random signal respectively and the responses are measured with the MR dampers working in different conditions.The research result shows that the MR damper changes the vibration characteristic of the beam only in a narrow frequency domain,and the vibration reduction performance of the MR damper is significant in the low frequency domain but not so effective in the high frequency domain.
引文
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[19]徐龙河,周云,李献忠.半主动磁流变阻尼控制方法的比较与分析[J].世界地震工程,2000,16(9):92-100.Xu Longhe,Zhou Yun,Li Xianzhong.Comparisonand analysis of semi-active magnetorheological damp-ing control method[J].World Information on Earth-quake Engineering,2000,16(9):92-100.
[20]徐龙河,周云,李献忠.MRFD半主动控制系统的时滞与补偿[J].地震工程与工程振动,2001,21(3):127-131.Xu Longhe,Zhou Yun,Li Xianzhong.Time-delayand compensation for MRFD semi-active control sys-tem[J].Earthquake Engineering and EngineeringVibration,2001,21(3):127-131.
[21]汪建晓,孟光.磁流变液阻尼器用于振动控制的理论及实验研究[J].振动与冲击,2001,20(2):39-45.Wang Jianxiao,Meng Guang.Theoretical and ex-perimental study on the vibration control by magne-to-rheological fluid dampers[J].Journal of Vibrationand Shock,2001,20(2):39-45.
[22]关新春,欧进萍.磁流变耗能器的阻尼力模型及其参数确定[J].振动与冲击,2001,20(1):5-8.Guan Xinchun,Ou Jinping.Magnetorheologicaldamper’s damping force model and the definition ofits parameter[J].Journal of Vibration and Shock,2001,20(1):5-8.
[2]王有林,刘景林.电磁阻尼器设计研究[J].西北工业大学学报,2006,24(3):358-361.Wang Youlin,Liu Jinglin.Designing electromag-netic damper used in space rendezvous[J].Journal ofNorthwestern Polytechnical University,2006,24(3):358-361.
[3]Rabinow J.Magnetic fluids clutch[J].TechnicalNews Bulletin of National Bureau of Standards,1948,32(4):54-60.
[4]Margida A J,Weiss K D,Carlson J D.MR suspen-sions and associated technology[C]//Proceedings ofthe 5th International Conference on ER Fluids.Sin-gapore:World Scientific,1996:544-550.
[5]Foister R T.Magnetorheological fluids:US,Patent5667715[P].1997.
[6]Dyke S J,Spencer B F,Sain M K,et al.Modelingand control of magnetorheological dampers for seis-mic response reduction[J].Smart Mater Struct,1996,5(5):565-575.
[7]Carlson J D,Weiss K D.A growing attraction tomagnetic fluids[J].Machine Design,1994,66(15):61-66.
[8]Hong S R,Choi S B,Choi Y T,et al.Non-dimen-sional analysis and design of a magneto rheologicaldamper[J].Journal of Sound and Vibration,2005,288(4):847-863.
[9]Spelta C,Previdi F,Savaresi S M,et al.Control ofmagnetorheological dampers for vibration in a wash-ing machine[J].Mechatronic,2009,19(3):410-421.
[10]Milecki A.Investigation and control of magneto-rhe-ological fluid dampers[J].International Journal ofMachine Tools&Manufacture,2001,41(3):379-391.
[11]Stanway R,Sproston J L,Stevens N G.Non-linearmedelling of an electro-rheological vibration damper[J].Journal of Electrostatic,1987,20(2):167-184.
[12]Wen Y K.Method of random vibration of hystereticsystem[J].Engineering Mechanics Division,1976,102(2):249-263.
[13]Spencer B F,Dyke M K,Sain J D,et al.Phe-nomenological model of an magnetorheologicaldamper[J].ASCE Journal of Engineering Mechan-ics,1996,123(3):230-238.
[14]Choi S B,Lee S K.A hysteresis model for the field-dependent damping force of a magneto-rheologicaldamper[J].Journal of Sound and Vibration,2001,245(2):375-383.
[15]Dinh Q T,Kyoung K A.Identification and applica-tion of black-box model for a self-sensing dampingsystem using a magneto-rheological fluid damper[J].Sensors and Actuators A,2010,161(1):305-321.
[16]Metered H,Bonello P,Oyadiji S O.The experimen-tal identification of magnetorheological dampers andevaluation of their controllers[J].Mechanical Sys-tems and Signal Processing,2010,24(4):976-994.
[17]Carlson J D,Spencer B F.Magneto-rheological fluiddampers for semi-active seismic control[C]//Pro-ceedings of the Third International Conference onMotion and Vibration Control.Chiba,Japan:[s.n.],1996,2:35-40.
[18]邬华.磁流变阻尼器对斜拉索振动控制的研究[D].杭州:浙江大学,2003.
[19]徐龙河,周云,李献忠.半主动磁流变阻尼控制方法的比较与分析[J].世界地震工程,2000,16(9):92-100.Xu Longhe,Zhou Yun,Li Xianzhong.Comparisonand analysis of semi-active magnetorheological damp-ing control method[J].World Information on Earth-quake Engineering,2000,16(9):92-100.
[20]徐龙河,周云,李献忠.MRFD半主动控制系统的时滞与补偿[J].地震工程与工程振动,2001,21(3):127-131.Xu Longhe,Zhou Yun,Li Xianzhong.Time-delayand compensation for MRFD semi-active control sys-tem[J].Earthquake Engineering and EngineeringVibration,2001,21(3):127-131.
[21]汪建晓,孟光.磁流变液阻尼器用于振动控制的理论及实验研究[J].振动与冲击,2001,20(2):39-45.Wang Jianxiao,Meng Guang.Theoretical and ex-perimental study on the vibration control by magne-to-rheological fluid dampers[J].Journal of Vibrationand Shock,2001,20(2):39-45.
[22]关新春,欧进萍.磁流变耗能器的阻尼力模型及其参数确定[J].振动与冲击,2001,20(1):5-8.Guan Xinchun,Ou Jinping.Magnetorheologicaldamper’s damping force model and the definition ofits parameter[J].Journal of Vibration and Shock,2001,20(1):5-8.
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