Nonlinear response of hydraulic turbine generator set caused by unbalanced magnetic pull and oil film force
Weipeng Sun,
Shen Hu,
Chenyuan Ma
et al.
Abstract:Hydraulic turbine generator sets are crucial for harnessing water energy. However, the nonlinear phenomena resulting from the combination of unbalanced magnetic pull (UMP) and oil film forces remain unclear. A mathematical model of the rotor-bearing system is introduced to investigate the effects of UMP and the nonlinear oil film force on system. The UMP and nonlinear oil film force are derived from the air-gap magnetic energy and short bearing theory, respectively. The proposed model is verified by the stabil… Show more
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