...Solène Kojtych; Florence Nyssen; Charles Audet; Alain Batailly Over the past decade, the drive towards more efficient aircraft engines has pushed the boundaries of operating ranges far beyond a linear structural context. Nonlinear interfaces, such as blade-tip/casing contacts, are to be expected...

... a reorganization [ 21 ] of Eq. (5) which leads to significant gains in terms of computational efficiency. Blade-tip/casing contact forces are generally expressed in a cylindrical coordinate system ( r ,   θ ,   z ) . Their computation follows the evaluation of the gap function g ( t...

...Yann Colaïtis; Alain Batailly In this study, a frequency-domain approach based on the harmonic balance method coupled to a predictor-corrector continuation algorithm is implemented for the qualitative analysis of blade-tip/casing contacts in aircraft engines. Unilateral contact and dry friction...