Method of adjusting thermal balance of rotor

Details Method of adjusting thermal balance of rotor Method of adjusting thermal balance of rotor

1988-08-30

1990-04-03

Williams, Hezron E.

Metal working

Method of mechanical manufacture

Electrical device making

73 66, 74573F, H02K 1502

Patent

active

049128345

ABSTRACT:
A method of adjusting a thermal balance of a rotor. When obtaining a difference in shaft-vibration component of the rotor between an actual load condition and a no load condition, on the basis of detection results at a simulated load, a difference in shaft-vibration component of the rotating rotor between a no-load condition and a condition in which the rotor is heated from the outside and a difference in shaft-vibration component of the rotating rotor between a no-load condition and a condition in which the rotor is heated from the inside are detected at the simulated load. The detected differences in shaft-vibration component are converted respectively to differences in shaft-vibration component under a temperature condition at the actual load. Both the converted differences in shaft-vibration component are added to each other in a vector manner to obtain a difference in rotor shaft-vibration component at the actual load. Coolant flow rate at each section within the rotor is adjusted to eliminate the difference in rotor shaft-vibration component, thereby adjusting the thermal balance of the rotor.

REFERENCES:
patent: 3622820 (1971-11-01), Tjernstrum
patent: 4311931 (1982-01-01), Fujioka et al.
patent: 4319149 (1982-03-01), Eckels
patent: 4363982 (1982-12-01), Kaminski
patent: 4370800 (1983-02-01), Kuzmin et al.

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