It is concluded that the causes of sudden vibration are oilfilmwhirl and thermal unbalance of generator rotor resulting from interturn short-circuit and hindered winding expansion etc.
认为突发性振动原因是运行中转子的油膜涡动和匝间短路、线圈膨胀受阻等引起的热不平衡。
2
The results show that the change of oil-filmwhirl angle makes the characteristics of journal bearing change greatly, and the more the whirl radius is, the more the influence is.