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期刊论文

MICROPROCESSOR-BASED COMPE' ENSATION OF LEADSCREW DRIVE KINEMATIC ERRORS BY A FORECASTING TECHNIQUE

宾鸿赞HONGZAN BIN MARVINF DeVRIES

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摘要/描述

A microcomputer-based forecasring technique for compensating leadscrew drive kine-matic errors by the DDS(Dynamic Data Systems)approach is proposed in this paper, The kinematic error of a particular leadscrew drive system was described by an ARMA(16,15) model. In order to facilitate on-line compensation, an AR (9) model was fit instead of the ARMA model, Both models revealed the same dominate error components and have similar spectral plots, Experiments were conducted on a Giddings & Lewis Model IOV Numericen. ter. The re-suits show that the cumulative pitch error can be reduced some 80 to 90% through compen-satlon at lower feedrates of the table and about 50% at the higher feedrates using the forecasring technique.

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版权说明:以下全部内容由宾鸿赞上传于   2005年07月20日 19时17分52秒,版权归本人所有。

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