MATEC Web of Conferences
Volume 1, 2012CSNDD 2012 – International Conference on Structural Nonlinear Dynamics and Diagnosis
|Number of page(s)||5|
|Section||Bifurcations and Chaos in Mechanical/Mechatronical Systems|
|Published online||09 July 2012|
Bifurcation of Contact Between Rotor and Stator
Structural Dynamics, Darmstadt University of Technology, Petersenstr. 30, 64287 Darmstadt, Germany
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The paper discusses Bifurcation Diagrams of rotor stator contact problems and the transition from synchronous whirl towards different asynchronous movement patterns. Bifurcation Diagrams based on Poincaré Maps are presented for the model consisting of a JEFFCOTT rotor and a flexible mounted rigid stator ring. The analysis methods are applied systematically with respect to various motion patterns that have been observed for rotor stator contact in the past. The type of motion is identified using the analysis methods. Also the influence of different parameters on the changes of motion patterns and the transitions that result are described. The unique identification of all motion patterns for rotor stator interaction based on Bifurcation Diagrams is focus of the paper. Further insight on the conditions that lead to the change of motion patterns is given.
© Owned by the authors, published by EDP Sciences, 2012
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