摘要
According to the structure features of turbine casing, an experimental device which is used to study on local rub-impact fault was designed. When the high and low rotors are counter-rotating , by using the counter-rotating dual-rotor experimental apparatus as platform, the vibration characteristics excited by high rotor local rub-impact fault and low rotor local rub-impact fault were studied through the experiment. The experimental results show that when local rub-impact fault occurs on counter-rotating dual-rotor, there will be high harmonics, low harmonics and combined frequencies in the vibration signal of stator. And the position of the local rub-impact fault can be defined by analyzing the combined frequencies.
| 源语言 | 英语 |
|---|---|
| 页（从-至） | 31-36 |
| 页数 | 6 |
| 期刊 | Tuijin Jishu/Journal of Propulsion Technology |
| 卷 | 34 |
| 期 | 1 |
| 出版状态 | 已出版 - 1月 2013 |