Spectral element method for stability analysis of milling processes with discontinuous time-periodicity
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Authors
Lehotzky, David
Insperger, Tamas
Khasawneh, Firas
Stepan, Gabor
Issue Date
2017
Type
Article
Language
en_US
Keywords
spectral element method , stability analysis , machine tools , chatter models , milling , efficiency , computational time , stability boundaries , convergence
Alternative Title
International Journal of Advanced Manufacturing Technology
Abstract
This paper presents an application of the spectral element method for the stability analysis of regenerative machine tool chatter models in milling operations. An extension of the spectral element method is introduced in order to handle the discontinuities in the cutting force in an effcient way. The efficiency of the method is demonstrated on some well-known machine tool chatter models taken from the literature. Efficiency is characterized by the computational time, the convergence of the stability boundaries and the convergence of critical characteristic multipliers. Results show that, compared to the most widespread methods in machining literature, the spectral element method provides significant improvements in computational time while maintaining high accuracy levels.
Description
Citation
Lehotzky, D., Insperger, T., Khasawneh, F., & Stepan, G. (2017). Spectral element method for stability analysis of milling processes with discontinuous time-periodicity. International Journal of Advanced Manufacturing Technology, 89, 2503–2514. doi:10.1007/s00170-016- 9044-z
Publisher
International Journal of Advanced Manufacturing Technology
License
Journal
Volume
Issue
PubMed ID
DOI
ISSN
0268-3768