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Wednesday, July 10 • 12:10 - 12:30
A COUPLED APPROACH TO MODEL THE EFFECT OF WEAR ON THE DYNAMICS OF BLADED DISKS

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This study proposes a technique to predict the effect of wear on the dynamics of structures with contact interfaces and the evolution of contact interface using a coupled static and dynamic multi-harmonic balance (MHBM) method. A multiscale approach is implemented, namely slow-scale for wear phenomena and fast-scale for the non-linear dynamic response. The wear is computed using wear energy approach and adaptive wear logic. The technique is applied to a tuned shrouded bladed disk on a single sector using cyclic symmetry property to predict the evolution of wear at the shroud contact interface and the corresponding change in dynamic response.

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avatar for Mohammad Rafiee

Mohammad Rafiee

Postdoctoral Fellow, Polytechnique Montréal
Mohammad Rafiee received his Ph.D. degree in Mechanical Engineering from the University of Ottawa in 2018. Currently, he is a Postdoctoral Fellow at Polytechnique Montreal in Canada. His research interests are primarily focused on the development of advanced composite materials, smart... Read More →

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Wednesday July 10, 2019 12:10 - 12:30 EDT
St-Laurent 8
  T07 Struct. dyn. & nonlin. vib., RS05 Fatig fractr & jnt interf