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Hybrid modelling and simulation of a computer numerical control machine tool feed drive

By Crinela Pislaru, Derek G. Ford and Geoffrey Holroyd

Abstract

The paper presents a new approach to the modelling and simulation of a computer numerical control (CNC) machine tool feed drive. The hybrid model of the drive incorporates a distributed load, explicit damping factors and measured non-linear effects in order to achieve a realistic dynamic performance. In this way, the shortcomings of traditional modelling methods applied to CNC machine tool axis drives are overcome. A MATLAB/SIMULINK package was used to simulate this new model for a CNC machine tool feed drive. A novel hybrid model with a distributed load, explicit damping factors, backlash and friction was developed and shown to have a similar dynamic response to the machine tool feed drive system under the same conditions. The simulated results display resonance frequencies, while the lumped-parameter models generate only the response of a second-order elemen

Topics: T1, TJ
Publisher: Professional Engineering Publishing
Year: 2004
OAI identifier: oai:eprints.hud.ac.uk:4226

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Citations

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