Affiliation:
1. Faculty of Engineering, Department of Mechanical Design and Production, Cairo University, Giza 12316, Egypt
Abstract
The oil whirl and oil whip phenomena have been well known since the early twentieth century. However, there is a lot of confusion on the parameters that affect the onset of instability. In this study, we investigate the onset of instability on a flexible rotor mounted on two plain cylindrical journal bearings. The rotor is run through the first critical speed, the instability, and the second critical speed. Tests are conducted at various unbalance levels, pressures, and misalignment conditions on the coupling. It is shown that, by far, the misalignment of the coupling is the parameter that is most effective on the onset of instability. In particular angular misalignment resulted in the smoothest rotor response.
Subject
Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering
Reference34 articles.
1. Shaft Whipping Due to Oil Action in Journal Bearings;Newkirk;Gen. Electr. Rev.
2. Instability Boundary for Rotor-Hydrodynamic Bearing Systems;Guo;ASME J. Vibr. Acoust.
3. Instability Boundary for Rotor-Hydrodynamic Bearing Systems, Part 2: Rotor With External Flexible Damped Support;Guo;ASME J. Vibr. Acoust.
4. On the Contribution of Beauchomp Tower to Current World Technology;Fuller
Cited by
31 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献