Integration of input shaping technique with interpolation for vibration suppression of servo-feed drive system
Journal
Journal of the Chinese Institute of Engineers, Transactions of the Chinese Institute of Engineers,Series A/Chung-kuo Kung Ch'eng Hsuch K'an
Journal Volume
40
Journal Issue
4
Pages
284-295
Date Issued
2017
Author(s)
Abstract
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.
SDGs
Publisher
Taylor and Francis Ltd.
Type
journal article