Band-stop-filter-based repetitive control of fast tool servos for diamond turning of micro-structured functional surfaces

Huang, Weiwei; Zhang, Xinquan; Zhu, Limin

doi:10.1016/j.precisioneng.2023.05.008

Cited by 4 publications

(2 citation statements)

References 28 publications

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“…where 𝑃 (𝑠) and 𝑃 (𝑠) represent the transfer functions (TF) from the control input 𝑢 to the motor side and table side position, 𝑦 and 𝑦 , respectively. Then 𝑃 (𝑠) defined in (12) is the TF from the motor side position to the table side position. In addition, 𝑞 = 𝑚 𝑚 , 𝑞 = (𝑚 + 𝑚 )𝑐 + 𝑚 𝑐 + 𝑚 𝑐 , 𝑞 = (𝑚 + 𝑚 )𝑘 + 𝑐 𝑐 + (𝑐 + 𝑐 )𝑐 , and 𝑞 = (𝑐 + 𝑐 )𝑘 .…”

Section: Applying Standard Ilc To the Flexible Structurementioning

confidence: 99%

“…Conversely, a feedforward control signal can be designed to preemptively target future reference commands and disturbances, utilizing an understanding of the system’s dynamics and the information at hand. Techniques like notch filtering [ 12 ] and input shaping [ 13 ] are employed to modify the spectral energy around the resonance frequency in trajectory commands, aiming to reduce vibrations induced by the trajectory. Yet, these approaches may introduce additional delays and can distort trajectory commands, which can compromise the accuracy of contour tracking in multi-axis motion.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Multivariable Iterative Learning Control Design for Precision Control of Flexible Feed Drives

Wang,

Hsiao

2024

Sensors

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Advancements in machining technology demand higher speeds and precision, necessitating improved control systems in equipment like CNC machine tools. Due to lead errors, structural vibrations, and thermal deformation, commercial CNC controllers commonly use rotary encoders in the motor side to close the position loop, aiming to prevent insufficient stability and premature wear and damage of components. This paper introduces a multivariable iterative learning control (MILC) method tailored for flexible feed drive systems, focusing on enhancing dynamic positioning accuracy. The MILC employs error data from both the motor and table sides, enhancing precision by injecting compensation commands into both the reference trajectory and control command through a norm-optimization process. This method effectively mitigates conflicts between feedback control (FBC) and traditional iterative learning control (ILC) in flexible structures, achieving smaller tracking errors in the table side. The performance and efficacy of the MILC system are experimentally validated on an industrial biaxial CNC machine tool, demonstrating its potential for precision control in modern machining equipment.

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Section: Applying Standard Ilc To the Flexible Structurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Multivariable Iterative Learning Control Design for Precision Control of Flexible Feed Drives

Wang,

Hsiao

2024

Sensors

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Recent Development of Piezoelectric Fast Tool Servo (FTS) for Precision Machining

Liu

2023

Int. J. Precis. Eng. Manuf.

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Design, modeling and control of high-bandwidth nano-positioning stages for ultra-precise measurement and manufacturing: a survey

Huang,

Wang,

Meng

et al. 2024

Int. J. Extrem. Manuf.

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High-bandwidth nano-positioning stages (NPSs) have boosted the advancement of modern ultra-precise, ultra-fast measurement and manufacturing technologies owing to their fast dynamics, high stiffness and nanometer resolution. However, the nonlinear actuation, mechanical vibrational dynamics and multi-axis cross-coupling effect of high-bandwidth NPSs bring severe challenges for their design, modeling and control. Therefore, various state-of-the-art works have been reported over the past decades to deal with these challenges. This article provides a comprehensive review of high-bandwidth NPSs, which covers four representative aspects including mechanical design, system modeling, parameters optimization and high-bandwidth motion control. Besides, the representative high-bandwidth NPSs applied to the atomic force microscope and fast tool servo are presented and highlighted. Through the complete design procedure of high-bandwidth NPSs, this review aims at offering a systemic solution based on current research improvements for achieving the high-speed, high-accuracy and high-resolution operation. Furthermore, the remaining difficulties as well as the potential developments are summarized and discussed.

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Band-stop-filter-based repetitive control of fast tool servos for diamond turning of micro-structured functional surfaces

Cited by 4 publications

References 28 publications

Multivariable Iterative Learning Control Design for Precision Control of Flexible Feed Drives

Multivariable Iterative Learning Control Design for Precision Control of Flexible Feed Drives

Recent Development of Piezoelectric Fast Tool Servo (FTS) for Precision Machining

Design, modeling and control of high-bandwidth nano-positioning stages for ultra-precise measurement and manufacturing: a survey

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