Abstract
The article deals with the issues related to the mutual influence of vibrations and gas dynamic processes in the labyrinth seals (LS) of gas transmittal unit compressors. The mutual influence of vibrational gas dynamic processes in LS and vibrations of the rotor is studied. Within the framework of the unified algorithm, a solution is obtained for an unsteady aeroelastic one-dimensional gas flow problem in a deformable LS. A new factor (the rotor diameter in the LS region), which affects the pulsation magnitude of the gas dynamic force in the LS, is revealed. Changing the diameter of the rotor, you can reduce vibration. In this case, it is possible to reduce the designated clearances in the LS and to reduce the leakage.
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