Analysis of rotor assembly and balancing techniques
It is important to evaluate the rotor assembling and balancing technology, that includes a systematic error.
The goal is to identify and justify the shortcomings of the methods in use.
Work performed:
- Analysis of the applied assembling and balancing technology. Development of new technology, taking into account the existing customer’s equipment;
- Determination of a flexible rotor correction planes for low-frequency balancing, taking into account its vibration modes;
- Development of flexible rotor balancing technology;
- Determination of the dynamic coefficients of influence – calculation of the engine parts minimum acceptable imbalances with the DYNAMICS R4 S/W.
Result:
- Recommendations for improvement of assembling and balancing techniques.
Flexible rotor balancing technology
- Choice of rotor class.
- Choice of balancing method.
- Choice of correction planes.
- Calculation of the dynamic coefficients of influence (DKV) in DYNAMICS R4 in the sensor installation stations.
- Calculation of the initial and residual imbalance tolerances.
- Choice of the balancing speed.
- DYNAMICS R4 calculation of the expected unbalance and vibrations of the rotor stage in the engine test conditions.
