Measuring and testing – Rotor unbalance – In situ
Patent
1991-10-01
1994-01-11
Chapman, John E.
Measuring and testing
Rotor unbalance
In situ
73462, G01M 122
Patent
active
052770630
ABSTRACT:
A method for balancing a rotor of an alternator in a diesel-electric locomotive in which the rotor is drivingly coupled to a power output shaft of a diesel engine. A speed sensor and a vibration sensor are coupled to the rotor for providing output signals representative of instantaneous rotational velocity and instantaneous amplitude of vibrational motion of the rotor, respectively. In the inventive method, the rotor is accelerated to a first preselected rotational velocity and a first rotor unbalance is determined from the velocity and vibration signals. The rotor is then accelerated to a second preselected rotational velocity and a second rotor unbalance is determined. The first and the second rotor unbalance determinations are combined to identify a first correction weight and position thereof for minimizing the first and the second rotor unbalance. The identified weight is installed and the process repeated until the unbalance is corrected such that vibration is less than a preselected maximum value.
REFERENCES:
patent: 2541863 (1948-10-01), Oakley
patent: 2799168 (1957-07-01), Federn et al.
patent: 2983148 (1961-05-01), White
patent: 3751987 (1973-08-01), Whitmore
patent: 4098127 (1978-07-01), Shiga et al.
patent: 4926341 (1990-05-01), Guyot
patent: 5008826 (1991-04-01), Staudinger et al.
patent: 5011374 (1991-04-01), Miller
Chapman John E.
General Electric Company
Payne R. Thomas
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