Options For Low Speed And Operating Speed Balancing Of Rotating Equipment.

Abstract

Most turbomachinery users refer to bearing vibration as one of their major indicators of a successful repair. Frequently heard are such comments as "we could not even tell the machine was running." The single most observed cause for vibration is rotor unbalance, yet sometimes this is not supported with the proper level of importance placed on balance work. It sometimes seems that more importance is placed on the exterior paint job. This tutorial focuses on options available for balancing turbomachinery. The strong and weak points of the various options available are pointed out and several case histories are highlighted. Though balance is important, it should not be considered a cure for all problems. If major problems exist, they need to be taken care of before any balance work is done.