Chatter Control in Turning Process with a Nonlinear Energy Sink

Abstract : This paper presents the interest of an original absorber of vibration in order to reduce chatter vibration in turning process. The device is composed of a linear oscillator corresponding to a flexible cutting tool – subject to chatter – strongly coupled to a Nonlinear Energy Sink (NES), with purely cubic stiffness. The novelty of this work is the use of a nonlinear cutting law, more accurate for modeling the cutting process. The delayed equations of motion are analyzed using a combination of the method of multiple scales and harmonic balance. Different types of responses regimes are revealed such as periodic response and also Strongly Modulated Response (SMR). Analytic results are then compared with numerical simulations. Finally, the potential of the NES is demonstrated to control chatter in turning process.
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Etienne Gourc, Sébastien Seguy, Guilhem Michon, Alain Berlioz. Chatter Control in Turning Process with a Nonlinear Energy Sink. Advanced Materials Research, Trans Tech Publications, 2013, 698, pp.89-98. ⟨10.4028/www.scientific.net/AMR.698.89⟩. ⟨hal-01808190⟩

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