METHOD AND APPARATUS FOR BALANCING A ROTOR Russian patent published in 2021 - IPC F01D5/02 G01M1/22 G01M1/32 

FIELD: rotors.

SUBSTANCE: proposed is a method for balancing the rotor for a gas turbine. The method includes a stage wherein a rotor (100) is provided, containing a first correction plane (152) and a second correction plane (154), wherein a first balancing weight (W1) is attached to the first correction plane (152). The method includes a stage wherein a first run with an impact is conducted. The first balancing weight (W1) remains installed for the subsequent second run with an impact. The method includes a stage wherein a first calibration weight (M1) is installed on the second correction plane (154) using a reference impact vector. The method comprises a stage wherein the second run with an impact is conducted. The method includes a stage wherein the first calibration weight (M1) is removed from the rotor (100) and the impact vector of the second correction plane (154) is calculated using a first set of vibration measurements and a second set of vibration measurements obtained during the first run with an impact and the second run with an impact, respectively. The method includes a stage wherein the rotor is balanced by means of stages wherein a final balancing weight (W1’) is installed on the first correction plane (152) and a second balancing weight (W2) is installed on the second correction plane (154) using the calculated impact vectors.

EFFECT: proposed method provides a possibility of accelerating and facilitating the balancing process and improving the efficiency of the rotor for a gas turbine.

17 cl, 4 dwg