基于反馈FxLMS-鲁棒混合控制算法的主动隔振平台研究

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振动与冲击 ›› 2024, Vol. 43 ›› Issue (19) : 59-67.

论文

基于反馈FxLMS-鲁棒混合控制算法的主动隔振平台研究

杨纪楠1,2，焦素娟1,2，龙新华1,2

作者信息 +

Active vibration isolation platform based on feedback FxLMS-robust hybrid control algorithm

YANG Jinan1,2, JIAO Sujuan1,2, LONG Xinhua1,2

Author information +

文章历史 +

摘要

为解决传统FxLMS算法在收敛速度和稳定性之间存在的矛盾，以及次级通道模型不确定性对控制收敛性能的影响，将反馈FxLMS算法和混合灵敏度鲁棒控制器相结合，提出了一种反馈FxLMS-鲁棒混合控制算法，并在工程应用中常见的主动撑杆隔振平台上对该混合算法的振动控制性能进行仿真分析和试验验证。变载荷激励及控制通道变化仿真和试验结果均表明，不同激励下各个阶段的加速度响应衰减均超过80%，且与传统的FxLMS算法相比，所提出的混合控制算法具有更快的收敛速度和更强的鲁棒性。

Abstract

To address the contradiction between the convergence speed and stability in traditional FxLMS algorithms, as well as the impact of secondary channel model uncertainty on the control convergence performance, a feedback FxLMS robust hybrid control algorithm is proposed by combining the feedback FxLMS algorithm with a mixed sensitivity robust controller. The vibration control performance of the proposed hybrid control algorithm is simulated and verified by experiments on an active strut isolation platform in engineering applications. The simulation and experimental results of variable load excitation and control channel changes indicate that the acceleration response attenuation at each stage under different excitations exceeds 80%. Compared with the traditional FxLMS algorithm, the proposed hybrid control algorithm has faster convergence speed and stronger robustness.

导出引用

杨纪楠1, 2, 焦素娟1, 2, 龙新华1, 2. 基于反馈FxLMS-鲁棒混合控制算法的主动隔振平台研究[J]. 振动与冲击, 2024, 43(19): 59-67

YANG Jinan1, 2, JIAO Sujuan1, 2, LONG Xinhua1, 2. Active vibration isolation platform based on feedback FxLMS-robust hybrid control algorithm[J]. Journal of Vibration and Shock, 2024, 43(19): 59-67

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