磁流变阻尼器特性的实验研究
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摘要
结合磁流变阻尼器的工作原理和阻尼力简化模型,对不同激励振幅、激励频率、控制电流下的磁流变阻尼器的阻尼力特性、耗能特性、响应时间进行了一系列的实验研究。分析得出,磁流变阻尼器具有极强的减振耗能作用,且耗能能力随着控制电流、激振振幅和频率的增加而增大。磁流变阻尼器的响应时间随控制电流的变化不太明显,但是随着激振速度的增加迅速减小。
Based on the working principle and the simplified model of MR damper,a series of experimental study on the damper force,energy dissipation and the response time under different excitation amplitude,frequency and control current is performed.The results indicate that the MR damper has a high effectiveness for energy dissipation,and the energy dissipation increases with the increasing of the excitation amplitude,frequency and control current.The response time of the MR damper does not change obviously with the control current changing,but decreases rapidly with the increase of vibration speed.
Based on the working principle and the simplified model of MR damper,a series of experimental study on the damper force,energy dissipation and the response time under different excitation amplitude,frequency and control current is performed.The results indicate that the MR damper has a high effectiveness for energy dissipation,and the energy dissipation increases with the increasing of the excitation amplitude,frequency and control current.The response time of the MR damper does not change obviously with the control current changing,but decreases rapidly with the increase of vibration speed.
引文
[1]欧进萍.结构振动控制[M].北京:科学出版社,2003,303-316.
[2]吕建刚,易当祥,张进秋,等.履带车辆磁流变减振器响应时间研究[J].实验力学,2001,16(3):320-324.
[3]Fernando D.Goncalves,et al.Experimental approach forfinding the response time of MR dampers for vehicle appli-cations[C].Proceedings of DETC,2003.
[4]杨广强,B.F.Spencer,等.足尺磁流变阻尼器的建模及动态特性[J].地震工程与工程振动,2001 21(4):8-23.
[2]吕建刚,易当祥,张进秋,等.履带车辆磁流变减振器响应时间研究[J].实验力学,2001,16(3):320-324.
[3]Fernando D.Goncalves,et al.Experimental approach forfinding the response time of MR dampers for vehicle appli-cations[C].Proceedings of DETC,2003.
[4]杨广强,B.F.Spencer,等.足尺磁流变阻尼器的建模及动态特性[J].地震工程与工程振动,2001 21(4):8-23.
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