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Regenerative Tool Chatter Near a Codimension 2 Hopf Point Using Multiple Scales

Wahi, Pankaj and Chatterjee, Anindya (2005) Regenerative Tool Chatter Near a Codimension 2 Hopf Point Using Multiple Scales. In: Nonlinear Dynamics, 40 (4). pp. 323-338.

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We study a well-known regenerative machine tool vibration model (a delay differential equation) near a codimension 2 Hopf bifurcation point. The method of multiple scales is used directly, bypassing a center manifold reduction. We use a nonstandard choice of expansion parameter that helps understand practically relevant aspects of the dynamics for not-too-small amplitudes. Analytical expressions are then obtained for the double Hopf points. Both sub- and supercritical bifurcations are predicted to occur near the reference point; and analytical conditions on the parameter variations for each type of bifurcation to occur are obtained as well. Analytical approximations are supported by numerics.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Springer.
Keywords: Codimension 2 Hopf bifurcation;Delay differential equation; Method of multiple scales;Regenerative tool chatter
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Depositing User: Ramya Krishna
Date Deposited: 30 Apr 2007
Last Modified: 19 Sep 2010 04:37
URI: http://eprints.iisc.ac.in/id/eprint/10777

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