FIELD: turbine manufacture.
SUBSTANCE: method relates to methods of reduction of vibration of turbo machines and it can be used in aviation gas-turbine engines which have rotors equipped with elastic supports. Method is based upon changing elastic properties of its support and upon measurement of bends of shaft and frequency of rotation of rotor. Upon achieving frequency of rotation being equal to 0,85-0,95 of critical frequency of rotation, axial load is applied to rotor. Upon achieving bend which corresponds to frequency of rotation being equal to 0,85-0,95 of critical one, the axial load is released.
EFFECT: reduced dynamic bends of rotors; reduced vibration loads.
2 dwg
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