Structural analysis and chracterisation technique applied to a CNC vertical machining centre

Ford, Derek G., Widiyarto, Muhammad Helmi Nur, Myers, Alan, Longstaff, Andrew P. and Fletcher, Simon (2014) Structural analysis and chracterisation technique applied to a CNC vertical machining centre. Journal of Mechanical Engineering Science. ISSN 0954-4062

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Abstract

There is a requirement for improved 3D surface characterisation and reduced tool wear, when modern computer numerical-controlled (CNC) machine tools are operating at high cutting velocities, spindle speeds and feed-rates. This research project investigates vibration-induced errors on a CNC vertical machining centre under dynamic conditions. A model of the machine structural dynamics is constructed using the Finite Element Method (FEM) for the comprehensive analytical investigation of the machine vibration behaviour. The analytical model is then validated against the measured results obtained from an experimental modal analysis (EMA) investigation. A correlation analysis of the simulated and experimental modal analysis results is undertaken in order to improve the accuracy of the model and minimise modelling practice errors. The resulting optimised model will need further sensitivity analysis utilising parametric structural analysis and characterisation techniques in order to identify a potential for vibration reduction using passive methods.

Item Type:	Article
Subjects:	T Technology > TJ Mechanical engineering and machinery
Schools:	School of Computing and Engineering > Centre for Precision Technologies > EPSRC Centre for Innovative Manufacturing in Advanced Metrology School of Computing and Engineering > Centre for Precision Technologies > Engineering Control and Machine Performance Research Group
Related URLs:	Author
Depositing User:	Helene Pickles
Date Deposited:	11 Mar 2014 15:46
Last Modified:	04 Dec 2016 17:02
URI:	http://eprints.hud.ac.uk/id/eprint/19797

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