Virtual metrology frame technique for improving dynamic performance of a small size machine tool
dc.contributor.author | Abir, Jonathan | |
dc.contributor.author | Longo, Stefano | |
dc.contributor.author | Morantz, Paul | |
dc.contributor.author | Shore, Paul | |
dc.date.accessioned | 2016-12-20T10:32:20Z | |
dc.date.available | 2016-12-20T10:32:20Z | |
dc.date.issued | 2016-11-16 | |
dc.description.abstract | This 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.citation | Abir 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 24-31 | en_UK |
dc.identifier.issn | 0141-6359 | |
dc.identifier.uri | http://dx.doi.org/10.1016/j.precisioneng.2016.11.002 | |
dc.identifier.uri | https://dspace.lib.cranfield.ac.uk/handle/1826/11171 | |
dc.language.iso | en | en_UK |
dc.publisher | Elsevier | en_UK |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
dc.subject | Acceleration based displacement | en_UK |
dc.subject | Flexible frame | en_UK |
dc.subject | PID controller | en_UK |
dc.subject | Sensitivity function | en_UK |
dc.subject | Virtual metrology frame | en_UK |
dc.title | Virtual metrology frame technique for improving dynamic performance of a small size machine tool | en_UK |
dc.type | Article | en_UK |
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