A soft 6-axis active vibration isolator
A soft 6-axis active vibration isolator
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DOI：
10.1109/acc.1995.529280
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发表时间：
1995-06
期刊：
影响因子：
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通讯作者：
J. Spanos;Z. Rahman;G. Blackwood
中科院分区：
文献类型：
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作者：
J. Spanos;Z. Rahman;G. Blackwood
本文介绍了 6 轴主动控制隔振器的分析和实验结果。该隔离器旨在减弱精密光学级航天器上反作用轮、低温冷却器和其他噪音机器的振动。它由六个主动支柱组成，每个支柱都包含一个与软弹簧并联的电磁音圈致动器。使用六个解耦模拟控制器来闭合六个力传感器周围的宽带反馈回路，并使用十二个加速度计（六个在噪声侧，六个在安静侧）测量隔离器多轴传递率。实验结果表明，性能比单独的被动隔离提高了十倍。
The paper presents analytical and experimental results with a 6-axis actively controlled vibration isolator. The isolator was designed to attenuate vibrations from reaction wheels, cryogenic coolers and other noisy machines located on board precision optical-class spacecraft. It consists of six active struts each of which includes an electromagnetic voice coil actuator in parallel with a soft spring. Six decoupled analog controllers were used to close broadband feedback loops around six force sensors and the isolator multi-axis transmissibility was measured with twelve accelerometers (six on the noisy side and six on the quite side). Experimental results show a ten-fold improvement in performance over passive isolation alone.