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Increasingly smaller with the gap required between the rotor and the stator , which causes the rotor and the stator Rubbing may occur . Rubbing has become a \Therefore, this article for aviation engine RUBBING , established dual rotor systems model , RUBBING kinetic mechanism analysis . First , according to the actual double rotor structure , the establishment of a dual - rotor system dynamics model , gyroscopic effects are fully taken into account in the model , the low pressure rotor support asymmetric Rubbing and other factors , the establishment of the mechanics of the rotor and the casing RUBBING model. Second , in order to speed dual- rotor system inspired by the high and low pressure rotor the intermediary bearing clearance , the left side of the low pressure rotor support stiffness control parameters to study the dynamic behavior of the system , consider the casing elastic Rubbing . By fourth-order Runge-Kutta method to solve the system response . Bifurcation diagram , Poincare mapping , shafting locus analysis tools to analyze the dynamics of the system .
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