期刊
SMART STRUCTURES AND SYSTEMS
卷 5, 期 5, 页码 517-529出版社
TECHNO-PRESS
DOI: 10.12989/sss.2009.5.5.517
关键词
tuned dynamic vibration absorber; magnetorheological elastomers; transmissibility; vibration control efficiency
This paper presents the development of a new Adaptive Tuned Dynamic Vibration Absorber (ATDVA) working with magnetorheological elastomers (MBEs). The MRE materials were fabricated by mixing carbonyl iron particles with silicone rubber and cured wider a strong magnetic field. An ATDVA prototype using MRE as an adaptable spring was designed and manufactured. The MRE ATDVA worked in a shear mode and the magnetic field was generated by a magnetic circuit and controlled through a DC power supply. The dynamic performances or the system transmissibility at various magnetic fields of the absorber were measured by using a vibration testing system. Experimental results indicated that this absorber can change its natural frequency from 35Hz to 90Hz, 150% of its basic natural frequency. A real time control logic is proposed to evaluate the control effect. The simulation results indicate that the control effect of MRE ATDVA can be improved significantly.
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