Optimal design and experimental analyses of a new micro-vibration control payload-platform
Optimal design and experimental analyses of a new micro-vibration control payload-platform
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DOI：
10.1016/j.jsv.2016.04.007
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发表时间：
2016-07-21
影响因子：
4.7
通讯作者：
Sun, Xiaofen
中科院分区：
文献类型：
--
作者：
Sun, Xiaoqing;Yang, Bintang;Sun, Xiaofen
本文介绍了一种用于精密设备的新型有效载荷平台，该平台具有隔离5赫兹以下低频范围内复杂空间微振动的能力。以提高驱动效率和减小磁路非线性影响为目标，采用基于能量损失率最小的优化策略，对装有智能材料执行器的新型负载平台进行了研究和设计。然后，利用拉格朗日方法建立了驱动元件的动力学模型，并将受控自回归滑动平均(CARMA)模型与改进的广义预测控制(MGPC)算法相结合，进一步讨论了所设计的有效载荷平台的性能。最后，开发了一台实验样机并进行了测试。实验结果表明，该有效载荷平台具有良好的隔振性能。(C)2016爱思唯尔有限公司。保留所有权利。
This paper presents a new payload-platform, for precision devices, which possesses the capability of isolating the complex space micro-vibration in low frequency range below 5 Hz. The novel payload-platform equipped with smart material actuators is investigated and designed through optimization strategy based on the minimum energy loss rate, for the aim of achieving high drive efficiency and reducing the effect of the magnetic circuit nonlinearity. Then, the dynamic model of the driving element is established by using the Lagrange method and the performance of the designed payload-platform is further discussed through the combination of the controlled auto regressive moving average (CARMA) model with modified generalized prediction control (MGPC) algorithm. Finally, an experimental prototype is developed and tested. The experimental results demonstrate that the payload-platform has an impressive potential of micro-vibration isolation. (C) 2016 Elsevier Ltd. All rights reserved.