Virtual metrology frame technique for improving dynamic performance of a small size machine tool

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dc.contributor.authorAbir, Jonathan
dc.contributor.authorLongo, Stefano
dc.contributor.authorMorantz, Paul
dc.contributor.authorShore, Paul
dc.date.accessioned2016-12-20T10:32:20Z
dc.date.available2016-12-20T10:32:20Z
dc.date.issued2016-11-16
dc.description.abstractThis paper presents a novel concept, a virtual metrology frame, for enhancing the dynamic performance of a machine tool with a flexible structural frame. The dynamic properties of a machine are directly affected by the stiffness of its frame, and its reference system; thus, by having an unstressed metrology frame, superior dynamic capabilities can be achieved. The developed concept does not require physical components associated with metrology frame; hence it is ideal for machine tools with requirements for small footprint and ultra-precision performance. The concept relies on an accelerometer based dynamic displacement feedback technique, where the accelerometer is used as a precision frame displacement sensor. The concept does not require a complex controller, and was realized in an off-the-shelf CNC controller. The concept was demonstrated on a linear motion system, a simplified version of a compact size CNC machine, and its servo bandwidth and dynamic stiffness were improved by 36% and 70% respectively, which are the key parameters for improving the machining accuracy.en_UK
dc.identifier.citationAbir J, Longo S, Morantz P, Shore P, Virtual metrology frame technique for improving dynamic performance of a small size machine tool, Precision Engineering, Volume 48, April 2017, Pages 24-31en_UK
dc.identifier.issn0141-6359
dc.identifier.urihttp://dx.doi.org/10.1016/j.precisioneng.2016.11.002
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/11171
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectAcceleration based displacementen_UK
dc.subjectFlexible frameen_UK
dc.subjectPID controlleren_UK
dc.subjectSensitivity functionen_UK
dc.subjectVirtual metrology frameen_UK
dc.titleVirtual metrology frame technique for improving dynamic performance of a small size machine toolen_UK
dc.typeArticleen_UK

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