In this work, a semiactive electromagnetic vibration absorber has been developed based on a proposed electromagnetic stiffness adjustable spring model, which presents a new solution for adjusting stiffness in the field of vibration absorber devices. Simulation study on the electromagnetic spring has been performed to determine the structural parameter of the semiactive vibration absorber. An experimental rig is also built up to investigate its practical vibration control effectiveness. Firstly, the finite element model of the test bench is used to analyze its vibration characteristics. Then, the vibration reduction effect is predicted through the simulation analysis, from which the optimal control positions are found. Finally, the experimental studies are also conducted, and the results show that this semiactive electromagnetic vibration absorber has a frequency adjustment range from 21 Hz to 25 Hz, in which considerable vibration reduction from 5 dB to 10 dB can be achieved.
Development of a Semi-Active Electromagnetic Vibration Absorber and Its Experimental Study
Contributed by the Design Engineering Division of ASME for publication in the Journal of Vibration and Acoustics. Manuscript received November 15, 2011; final manuscript received March 1, 2013; published online June 18, 2013. Assoc. Editor: Wei-Hsin Liao.
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Liu, X., Feng, X., Shi, Y., Wang, Y., and Shuai, Z. (June 18, 2013). "Development of a Semi-Active Electromagnetic Vibration Absorber and Its Experimental Study." ASME. J. Vib. Acoust. October 2013; 135(5): 051015. https://doi.org/10.1115/1.4023952
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