Integration of input shaping technique with interpolation for vibration suppression of servo-feed drive system

It is essential to suppress vibrations of the feed drive system in order to achieve high speed and high precision machining. To analyze the dynamic response of the feed drive system, a more complete model is derived in this paper which considers the bed, longitudinal and torsional modes. The dynamic...

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Bibliographic Details
Published inJournal of the Chinese Institute of Engineers Vol. 40; no. 4; pp. 284 - 295
Main Authors Tsai, Meng-Shiun, Huang, Ying-Che, Lin, Ming-Tzong, Wu, Shih-Kai
Format Journal Article
LanguageEnglish
Published Taylor & Francis 19.05.2017
Subjects
CNC interpolation
input shaping
Residual vibration
zero vibration derivative (ZVD)
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Summary:It is essential to suppress vibrations of the feed drive system in order to achieve high speed and high precision machining. To analyze the dynamic response of the feed drive system, a more complete model is derived in this paper which considers the bed, longitudinal and torsional modes. The dynamic model is represented by the block diagram and is incorporated with servo controls to form a closed-loop system. To alleviate vibrations of the servo-feed drive system, a full order modified input shaping with zero vibration (FMISZV) algorithm integrated into the CNC interpolator is developed. The performance of vibration suppression using the FMISZV is compared to those of conventional input shapers, such as zero vibration with derivation (ZVD) and conventional linear acceleration/deceleration (Acc/Dec) interpolator (CLAI). It is shown that the FMISZV not only has the notch filter effect, but also exhibits low-pass filter behavior for high frequency modes. Simulation and experimental results demonstrate that the FMISZV can outperform the ZVD and CLAI.
ISSN:0253-3839
2158-7299
DOI:10.1080/02533839.2017.1314197