Design and Control of a Real-Time Variable Modulus Vibration Isolator
Design and Control of a Real-Time Variable Modulus Vibration Isolator
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DOI：
10.1177/1045389x10389204
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发表时间：
2011-01
影响因子：
2.7
通讯作者：
S. Opie;W. Yim
中科院分区：
文献类型：
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作者：
S. Opie;W. Yim
研制了基于磁流变弹性体(MRE)的半主动(SA)隔振器，并用SA控制器进行了实时测试，验证了基于磁流变弹性体(MRE)隔振器的可行性。虽然一些研究人员已经将磁流变液应用于可调谐吸振器(TVA)，但将磁流变液应用于主隔震系统的工作还很少。此外，在开发TVA的情况下，在概念验证实验中实施的SA控制器很少。本文介绍了一种基于磁流变液的磁偏置隔振器，它使设备在停电时能够进行故障安全操作。为了测试磁流变液隔振器的有效性，设计了一个SA控制器来最小化有效载荷速度。文中还给出了变模数和变阻尼系统的仿真比较。最后给出了实验结果，实验结果表明，与被动系统相比，磁流变液隔振器和SA控制器系统的共振和有效载荷速度降低了16%-30%。
A magnetorheological elastomer (MRE-based semi-active (SA) vibration isolator is developed and tested in real-time with a SA controller, illustrating the feasibility of MRE-based isolators. While several researchers have applied MREs to tunable vibration absorbers (TVAs), little work has been done using MREs in primary isolation systems. Further, in cases where TVAs were developed, few SA controllers were implemented in proof of concept experiments. This article presents a magnetically biased MRE-based vibration isolator, which enables the device to have a fail-safe operation in the event of a power failure. To test the effectiveness of the MRE isolator, a SA controller is developed to minimize the payload velocity. A comparison by simulation of variable modulus and damping systems is also presented. Finally, experimental results are given, showing that the MRE isolator and SA controller system reduce resonances and payload velocities by 16-30% when compared to passive systems.