Classical non-contact bearings are already used in a number of specialist applications but there are somespecialist areas where they cannot be used for variety of reasons and acoustic sliding bearings could be an alternative. The paper presents the quest for a configuration of an acoustic journal bearing and shows that the overall shape of the bearing and its geometry are of a vital importance for the load capacity oft he bearing....
The paper presents results of experimental testing aiming at finding out what effect system of piezo-electric actuators (PZTs)attached to an aerodynamic journal bearing has on the magnitude of shaft's motion within the bearing operating at specified speed and load. The results clearly demonstrate effectiveness of PZTs in mitigating the shaft's motion thus contributing to the increased stability of the bearing. This stabilizing...
Some fundamental aspects of self-levitating sliding contact bearings and their practical implementations
In this study, fundamental aspects and mechanisms of acoustic levitation together with governing equations are presented first. Then, the acoustic levitation phenomenon is considered as a new way to design air suspension systems capable of self-levitation. A particular emphasis is laid on journal bearings and their specific geometrical configuration. A practical feasibility of using acoustic levitation to separate contacting surfaces...
Uzyskane stopnie/tytuły naukowe
Nadanie tytułu naukowegoprof. Mechanika (Dziedzina nauk technicznych)
Nadanie stopnia naukowegodr hab. Budowa i eksploatacja maszyn (Dziedzina nauk technicznych)Politechnika Krakowska
Nadanie stopnia naukowegodr Budowa i eksploatacja maszyn (Dziedzina nauk technicznych)
wyświetlono 125 razy