Measuring and testing – Rotor unbalance – Propeller – impeller – or fluid coupling
Patent
1977-01-07
1978-09-12
Gill, James J.
Measuring and testing
Rotor unbalance
Propeller, impeller, or fluid coupling
73147, G01M 122, G01M 128, G01M 900
Patent
active
041127749
ABSTRACT:
Vibration of a bladed rotor is reduced by a method that includes:
(a) rotating the rotor at a selected power level, at which vibration is produced,
(b) detecting an out-of-track condition of a blade being rotated at that power level.
REFERENCES:
patent: 2338293 (1944-01-01), Martin
patent: 2394766 (1946-02-01), Halford
patent: 2951542 (1960-09-01), Stulen et al.
patent: 3802273 (1974-04-01), Helmuth
Chadwick-Helmuth Company, Inc.
Gill James J.
Haefliger William W.
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