Balancing method and product

Details Balancing method and product Balancing method and product

H - Electricity

02

K

73/160

H02K 15/16 (2006.01) F01D 5/02 (2006.01) F16F 15/32 (2006.01) G01M 1/16 (2006.01) H02K 7/04 (2006.01)

Patent

CA 2016458

A low-speed balancing method ins provided for balancing a rotor to introduce balance corrections for reducing unbalance due to operation of the rotor at or near critical speeds without actually balancing the rotor at such critical speeds. The method is applicable for balancing a rotor in three, faun or more correction planes by utilising combinations of generic unbalance distributions of the rotor and predetermined mode shapes of the rotor at critical speeds: A simple method is presented which allows an operator using a low-speed balancing machine to determine measured corrections applicable to two plane of the rotor and then the operator effects at least a third correction to the rotor which is proportional to the first and second measured corrections and the unbalance/mode shape combustion. The operator then repeats the low-speed balancing sequence to determine final corrections at the first and second planes, which are then made for finally balancing the rotor.

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