Application of linear regression model on chatter threshold delineation

Koohestani, A, Mo, J and Yang, S 2015, 'Application of linear regression model on chatter threshold delineation', Institution of Mechanical Engineers. Proceedings. Part B: Journal of Engineering Manufacture, vol. 229, no. 8, pp. 1337-1347.


Document type: Journal Article
Collection: Journal Articles

Title Application of linear regression model on chatter threshold delineation
Author(s) Koohestani, A
Mo, J
Yang, S
Year 2015
Journal name Institution of Mechanical Engineers. Proceedings. Part B: Journal of Engineering Manufacture
Volume number 229
Issue number 8
Start page 1337
End page 1347
Total pages 11
Publisher Sage
Abstract This research is to parameterize the variation in reconstructed phase space attractor Poincare sections during the milling process in order to identify the transition of system from stable to unstable condition. Vibration is continuously acquired during the milling process and converted to the form of reconstructed time series. A regression model is developed to compute the trend of changes in the reconstructed phase space attractor Poincare sections and output a numerical value indicating the level of stability. A threshold value of the trend value defines the boundary of stable and unstable states of milling process. The method monitors the state of system without the necessity to have analytical relationship between cutting parameters and milling dynamics. It can also be used as an online monitoring process to detect the onset of chatter.
Subject Manufacturing Engineering not elsewhere classified
Keyword(s) Chatter
Phase space reconstruction
Milling
Linear regression
Titanium
DOI - identifier 10.1177/0954405414535770
Copyright notice © IMechE 2014
ISSN 0954-4054
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