WIT Press


Identification Of Modal Parameters Affecting The Dynamic Performance Of CNC Machine Tools

Price

Free (open access)

Paper DOI

10.2495/LAMDAMAP030151

Volume

44

Pages

10

Published

2003

Size

429 kb

Author(s)

C. Pislaru, D.G. Ford & J.M. Freeman

Abstract

To compute, predict and eliminate the instantaneous errors in CNC machine tools requires computationally fast and efficient algorithms. One important aspect of proficient condition monitoring is the use of a mathematical model, which adequately replicates the dynamic behaviour of the machne tool. Recent studies established that the models of the machne tool feed drives have to incorporate explicit damping factors in order to achieve a realistic dynamic performance. The necessity of determining fast and accurately the modal parameters of the model became very important. In answer to ths, a novel application of wavelet transform for the determination of damping coefficients and resonance states for the feed drives was developed. It is based on wavele

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