精密隔振器直接扰动的前馈抑制研究
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国家自然科学基金资助项目(62304045),上海市扬帆计划资助项目(23YF1401600)


Research on Feedforward Suppression of Direct Disturbances in Precision Vibration Isolators
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    摘要:

    随着科技的快速发展,半导体制造等高精度领域对振动控制提出了更高要求.主动隔振器作为关键的振动控制技术,能够有效减小外部和内部振动对设备性能的影响.然而,现有控制方法在应对高精度隔振系统中的挑战时仍存在局限,特别是在处理由运动台引起的直接扰动时.本文提出了一种结合驱动力前馈与迭代学习控制的主动隔振新方案.通过对隔振平台的动力学建模,深入分析了运动台引起的直接扰动,并设计了基于驱动力前馈补偿与迭代学习控制的双重策略.前馈补偿通过精确预测并抑制运动台对隔振平台的部分扰动;迭代学习控制则通过多次迭代优化补偿策略,有效减小摩擦力等非线性扰动的影响,提升了系统的控制精度.实验结果表明,该方法显著提高了系统的隔振性能,尤其在摩擦力扰动抑制方面取得了优异的效果.

    Abstract:

    With the rapid development of technology, vibration control in high-precision fields such as semiconductor manufacturing has become increasingly important. Active vibration isolators, as a key vibration control technology, can effectively reduce the impact of external and internal vibrations on equipment performance. However, existing control methods still face limitations when addressing the challenges of high-precision isolation systems, particularly when dealing with direct disturbances caused by the motion platform. This paper proposes a new active vibration isolation scheme that combines drive force feedforward and iterative learning control. By dynamically modeling the isolation platform, the direct disturbances caused by the motion platform are thoroughly analyzed, and a dual strategy based on drive force feedforward compensation and iterative learning control is designed. The feedforward compensation accurately predicts and mitigates part of the disturbances from the motion platform, while iterative learning control iteratively optimizes the compensation strategy, effectively reducing the influence of nonlinear disturbances such as friction and improving the control precision of the system. Experimental results show that the proposed method significantly improves the vibration isolation performance of the system, especially in terms of suppressing nonlinear disturbances.

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孙煜,程文宝,俞开程,杨晓峰.精密隔振器直接扰动的前馈抑制研究[J].动力学与控制学报,2025,23(8):22~28; Sun Yu, Cheng Wenbao, Yu Kaicheng, Yang Xiaofeng. Research on Feedforward Suppression of Direct Disturbances in Precision Vibration Isolators[J]. Journal of Dynamics and Control,2025,23(8):22-28.

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  • 收稿日期:2025-01-20
  • 最后修改日期:2025-02-13
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  • 在线发布日期: 2025-09-04
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