The Influence of Bearing Clearance on the Load Capacity of Gas Polymer Bearings

The Influence of Bearing Clearance on the Load Capacity of Gas Polymer Bearings

Blog Article

In this paper, the influence of a nominal bearing clearance on the lift-off behaviour and aluminum lotion the load-carrying capacity of gas polymer bearings (GPBs) is investigated.For this purpose, an experimental study with five different bearing gap configurations and a range of static loads is carried out.Furthermore, the test rig for the clearance and friction torque measurements is illustrated and discussed from a practical point of view.The experimental gap measurement results of all the bearing configurations and the method used are explained and discussed.Finally, the friction torque during the lift-off and run-up phases is measured for a range of static loads.

A method that uses the time derivative of the measured friction torque during the run-up tests as a criterion for the lift-off detection is explained and applied to the measured data.The results of click here this study indicate that there are large differences between the most studied bump-type and gas polymer bearings in terms of the dependence of the load-carrying capacity on the bearing gap.Furthermore, the recorded effects are described, and possible explanations are given.Finally, the differences in characteristics from those of bump-type bearings are described and their importance for the design process of rotors supported in GPBs is explained.