TY - JOUR
T1 - Effect of the hydrodynamic bearing on rotor/stator contact in a ring-type ultrasonic motor
AU - Maeno, Takashi
AU - Bogy, David B.
PY - 1991/1/1
Y1 - 1991/1/1
N2 - A hybrid numerical analysis that includes the hydrodynamic bearing effect and elastic contact in a ring-type ultrasonic motor is presented. The two dimensional Reynolds equation is solved numerically by a finite difference algorithm. The rotor deformation is described by a one dimensional Green's function obtained by using a finite element elastic analysis code. The contact problem is solved by an iteration method so that the contact condition and the hydrodynamic bearing condition are satisfied simultaneously. The results show that the hydrodynamic bearing effect is significant for ultrasonic frequency contact of the rotor and stator. Surface roughness, contact area, and normal vibrating speed of the stator are important parameters in the hydrodynamic bearing.
AB - A hybrid numerical analysis that includes the hydrodynamic bearing effect and elastic contact in a ring-type ultrasonic motor is presented. The two dimensional Reynolds equation is solved numerically by a finite difference algorithm. The rotor deformation is described by a one dimensional Green's function obtained by using a finite element elastic analysis code. The contact problem is solved by an iteration method so that the contact condition and the hydrodynamic bearing condition are satisfied simultaneously. The results show that the hydrodynamic bearing effect is significant for ultrasonic frequency contact of the rotor and stator. Surface roughness, contact area, and normal vibrating speed of the stator are important parameters in the hydrodynamic bearing.
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U2 - 10.1109/ULTSYM.1991.234250
DO - 10.1109/ULTSYM.1991.234250
M3 - Conference article
AN - SCOPUS:84973031079
SN - 1051-0117
SP - 933
EP - 936
JO - Proceedings - IEEE Ultrasonics Symposium
JF - Proceedings - IEEE Ultrasonics Symposium
M1 - 234250
T2 - 1991 IEEE Ultrasonics Symposium. ULTSYM 1991
Y2 - 8 December 1991 through 11 December 1991
ER -