... assembly state and environment loads, the damage accumulation mechanical process and the final failure forms of the structural system have significant uncertainty. Table 19 Effect of friction/fatigue damage of interference cylindrical surfaces on equivalent deformation after 20 cycles Effect...

... of uncertainty in mass properties focused first on the variability of the rotor natural frequencies. To this end, an ensemble of 1000 random matrices M ∧ ¯ ¯ , G ∧ ¯ ¯ , and K ∧ ¯ ¯ were generated and the corresponding eigenvalues...

...Raghavendra Murthy; Marc P. Mignolet; Aly El-Shafei In the first part of this series, a comprehensive methodology was proposed for the consideration of uncertainty in rotordynamic systems. This second part focuses on the application of this approach to a simple, yet representative, symmetric rotor...

...Raghavendra Murthy; Marc P. Mignolet; Aly El-Shafei A systematic and rational approach is presented for the consideration of uncertainty in rotordynamics systems, i.e., in rotor mass and gyroscopic matrices, stiffness matrix, and bearing coefficients. The approach is based on the nonparametric...