[en] The dynamic behavior of bladed-disk assemblies is significantly influenced by friction at contact interfaces, which contributes to both damping and wear. Traditional nonlinear vibration models often simplify the contact representation, but more accurate simulations require detailed modeling of the contact surfaces. However, these detailed models lead to large-scale nonlinear problems that challenge current computational capabilities. This study presents a new method that combines advanced model reduction techniques with simultaneous static and dynamic contact force calculation to enhance solution efficiency and accuracy. The approach is validated through numerical simulations, showing improved performance and enabling future integration of fretting-wear effects.
