Abstract
Rotating machinery in the process industries and pipeline applications are many times designed with fixed-lobe-type bearing inserts. This paper summarizes a method of analysis which has been computer automated to allow the analysis and design optimization of multipocket bearings for application in turbomachinery. The general stability characteristics of multipocket bearing designs are compared to plain axial groove and multilobe bearings for specific examples. The analysis permitted the rapid design of a modified multipocket bearing which was successful in suppressing a high-amplitude subsynchronous vibration in two separate gas expanders under field operating conditions.
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