Title
Expedient identification of the dynamics of ball-screw drives using online-validation
Abstract
Knowledge of machine tool drive dynamics is imperative to achieve optimal, robust performance with precision and productivity. Modelling ball-screw drives is vital in order to have a feasible insight into the structural vibration modes of the mechanical assembly, which typically limits the bandwidth of developed controllers. In this paper, an output-only modal identification, Operational Modal Analysis (OMA), is used to validate a ball-screw feed drive model while running without cutting. The experimental results indicate that the identified parameters on the running state are different from those of static state and mathematical modelling. Furthermore, it is possible to validate and calibrate dynamic models using OMA by measuring the table structure responses without knowing the excitation input.
Year
DOI
Venue
2017
10.23919/IConAC.2017.8082054
2017 23rd International Conference on Automation and Computing (ICAC)
Keywords
Field
DocType
component,Out-put only,Machine tools,Natural frequency,Damping ratio
Ball screw,Operational Modal Analysis,Control theory,Control engineering,Bandwidth (signal processing),Dynamic models,Engineering,Vibration,Modal,Calibration,Machine tool
Conference
ISBN
Citations 
PageRank 
978-1-5090-5040-6
0
0.34
References 
Authors
1
5
Name
Order
Citations
PageRank
Ashraf Hatwesh100.34
Simon Fletcher2276.25
Andrew P. Longstaff3347.09
Wencheng Pan400.34
Fengshou Gu52323.43