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期刊论文
Study on the Compensation of Error by Stick-Slip for High-Precision Table
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A simple approach of compensating friction error of high-precision tablesis proposed in this paper. On the basis of accurate prediction of the magnitude of thefriction error and the place where it occurs, first a compensator is constructed whichconsists of an online friction error prediction model and the rectangular compensationcurves regarded as the compensation pulses. Then by carrying out several times ofoptimal compensation experiments, the parameters describing the rectangular compensation curve at certain positions can be obtained. Finally the optimal parameters of the rectangular compensation curve at any position can be determined by interpolation and approximation approach. It has been shown that the method of compensating friction error proposed in this paper can be applied to effectively compensate the friction error for any circular motions of high-precision tables.
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