Patent ID: 7243023
Filing Date: 2007-07-10
Classification: F01D,F05D,G01M

Abstract:
1. A method for balancing vibrations in a rotating machine having a first and a second plane of imbalance, the method comprising: determining a first set of solution mass vectors that includes a first solution mass vector for the first plane and a first solution mass vector for the second plane, each first solution mass vector includes a mass and a phase angle; determining whether a first phase difference between a phase angle of the first solution mass vector for the first plane and a phase angle for the first solution mass vector for the second plane is less than a pre-selected amount; retaining the first set of solution mass vectors if the first phase difference is less than the pre-selected amount; incrementing the first set of solution mass vectors to create a second set of solution mass vectors that includes a second solution mass vector for the first plane and a second solution mass vector for the second plane; determining whether a second phase difference between a phase angle of the second solution mass vector for the first plane and a phase angle for the second solution mass vector for the second plane is less than the pre-selected amount; retaining the second set of solution mass vectors if the second phase difference is less than the pre-selected amount, and determining selected ones of the retained solution mass vectors that balance the rotating machine such that vibration of the rotating machine is reduced.