Auteur John J. Yu
Documents disponibles écrits par cet auteur (2)
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Article : texte imprimé
John J. Yu, Auteur |This paper discusses reverse full annular rub based on a two degree-of-freedom rotor/seal model where a rubbing location can be simulated away from the lumped rotor mass. The analytical model is much closer to the experimental setup for comparis[...]
Article : texte imprimé
John J. Yu, Auteur |This paper discusses real cases on three different machines where subsynchronous vibration occurred suddenly at a frequency exactly equal to one-half ((1/2)X) of the operational speed of 3600 rpm. In two cases, vibration amplitude increased from[...]
