The study investigates the impact of vertical displacements of gas pumping unit (GPU) foundations on the alignment of rotors. When the GPU transitions to operational mode, its foundation experiences heating. Thermal deformations of the foundation affect the alignment of the drive and compressor rotors. Non-uniform settlements of GPU foundations can also lead to misalignment of the mentioned rotors. Rotor misalignment results in increased vibration levels and GPU temperatures. This adversely affects their performance and reduces their operational lifespan. Thus, the task arises to account for the influence of these deformations on rotor alignment.
As experience shows, GPU foundations, due to thermal deformations, exhibit complex deformed surfaces that are practically impossible to describe strictly mathematically. Therefore, an approximating surface of the nth order is used to describe such foundations. Based on this, formulas are derived regarding the impact of GPU foundation deformations on the alignment of drive and compressor rotors, accompanied by a rigorous assessment of the accuracy of obtained results. For computational convenience, formulas for determining rotor alignment elements are presented in a matrix form, along with an assessment of their accuracy.
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