Modelisation du contact en implicite
Application a I 'interaction rotor/stator
Keywords:
contact element, dynamic, Newmark implicit time scheme, compatibilities, Lagrange multiplier method, penalty function method, contact stiffness, rotor/stator interactionAbstract
The two main contact methods in dynamics are firstly studied. The influence of the Newmark implicit time scheme parameter values is then analysed with a special attention to the contact compatibility conditions. A new contact stiffness is proposed to compute interaction forces in a finite element code with a Newmark implicit integration scheme. The contact model is finally used to simulate rotor/stator interaction in an aircraft engine, after a blade-off event.
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References
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