Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Determining balance or center of gravity
Reexamination Certificate
2007-07-10
2007-07-10
Nguyen, Tan Q. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Determining balance or center of gravity
C701S010000, C701S038000, C701S100000, C700S279000, C318S128000
Reexamination Certificate
active
10929324
ABSTRACT:
A method for balancing vibrations in a rotating machine is provided. The rotating machine has a first and a second plane of imbalance. The method includes 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. 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 calculated. The first phase difference is compared to a pre-selected value. If the first phase difference is less than the pre-selected value, the first set of solution mass vectors is retained. The first set of solution mass vectors is then incremented 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. 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 then compared to the pre-selected value. If the second phase difference is less than the pre-selected value, the second set of solution mass vectors is retained. Finally, selected retained solution mass vectors are determined that balance the rotating machine such that vibration of the rotating machine is reduced.
REFERENCES:
patent: 4098127 (1978-07-01), Shiga et al.
patent: 5214585 (1993-05-01), Ehrich
patent: 2002/0060268 (2002-05-01), Smith et al.
patent: 2006/0151272 (2006-07-01), Smith et al.
Harness & Dickey & Pierce P.L.C.
Nguyen Tan Q.
The Boeing Company
LandOfFree
Engine balancing system and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Engine balancing system and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Engine balancing system and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3756546