Thought that the generator rotational speed had achieved nearby two time of critical rotation speeds, the shafting has had the oilfilmvibration.
认为发电机转速达到两倍临界转速附近，轴系发生了油膜振荡。
2
This article analyses the influence of the support of oilfilmvibration damping of the main spindle on cutting degree of roughness through cutting test.
本文通过粗糙度切削试验，分析讨论了车床主轴油膜减振支承对其加工粗糙度的影响。
3
Through frequency spectrum analysis, the causes of sudden vibration of the unit are found out, and confirm that has the feature of oilfilmvibration, and then is eliminated.