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首页> 外文期刊>Smart Materials & Structures >The development of an adaptive tuned magnetorheological elastomer absorber working in squeeze mode
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The development of an adaptive tuned magnetorheological elastomer absorber working in squeeze mode

机译：在挤压模式下工作的自适应调谐磁流变弹性体吸收器的开发

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In the past, adaptive tuned vibration absorbers (ATVAs) based on magnetorheological elastomers (MREs) have mainly been developed in a shear working mode. The enhancing effect of MREs in squeeze mode has already been investigated, but ATVAs in squeeze mode have rarely been studied. This paper reports the development of a compact squeeze MRE absorber and its subsequent performance in various magnetic fields characterized under various frequencies by a vibration testing system. The results revealed that the natural frequency of the MRE absorber working in squeeze mode can be tuned from 37 Hz to 67 Hz. Following this, a theoretical model based on magnetic dipole theory was developed to investigate the dynamic performance of the squeeze MRE absorber, and the vibration attenuation of the squeeze MRE absorber was then verified by mounting it on a beam with supports under both ends. The results revealed that the squeeze MRE absorber extended its vibration attenuation range from 37 Hz to 67 Hz while the passive absorber was only effective around 53 Hz.
机译：过去，基于磁流变弹性体（MRE）的自适应调谐减震器（ATVA）主要是在剪切工作模式下开发的。已经研究了MREs在挤压模式下的增强作用，但是很少研究挤压模式下的ATVA。本文报告了紧凑型MRE吸收器的开发及其在各种磁场中的振动性能，该振动器随后在各种磁场下的性能都得到了验证。结果表明，在挤压模式下工作的MRE吸收器的固有频率可以从37 Hz调整到67 Hz。此后，建立了基于磁偶极子理论的理论模型来研究挤压MRE吸收器的动态性能，然后将挤压MRE吸收器安装在两端带有支撑的梁上，从而验证了振动衰减。结果表明，挤压式MRE吸收器的振动衰减范围从37 Hz扩展到67 Hz，而被动吸收器仅在53 Hz左右有效。

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