| 水轮机组不对称运行时扭转双重强迫共振 |
| |
| 引用本文： | 陈贵清,杨翊仁.水轮机组不对称运行时扭转双重强迫共振[J].西南交通大学学报,2001,36(6):633-636. |
| |
| 作者姓名： | 陈贵清 杨翊仁 |
| |
| 作者单位： | 西南交通大学应用力学与工程系,四川成都,610031 |
| |
| 摘 要： | 研究人某水轮发电机组转子轴系由电磁参数激发的整体扭转共振和两相线间短路时负序电流激发的100Hz共振的双频双重强迫共振问题。应用能量法建立了轴系扭振共振方程。研究结果表明双频双重共振比单重共振振幅加大，共振区加宽，动态剪切应力增大。所得结论对工程实际有一定的指导作用。
|
| 关 键 词： | 水轮发电机 转子 不对称运行 扭转双重强迫共振 扭振 电磁转矩 振动频率 |
| 文章编号： | 0258-2724(2001)06-0633-04 |
Forced Torsional Double-Resonance for a Hydro-Generator under Unsymmetrical Operation |
| |
| CHEN Gui qing,YANG Yi ren.Forced Torsional Double-Resonance for a Hydro-Generator under Unsymmetrical Operation[J].Journal of Southwest Jiaotong University,2001,36(6):633-636. |
| |
| Authors: | CHEN Gui qing YANG Yi ren |
| |
| Abstract: | The forced double frequency resonance of a large hydro generator unit is studied. The resonance is composed of torsional resonance of whole rotor system and 100 Hz resonance excited by inverted sequence electricity under short circle between two phases. By applying energy method, the torsional resonance equations of the rotor system are derived. The study results show that compared with the vibrating amplitudes of single resonance, double frequency resonance is much larger, the resonance area gets wider and dynamic shear stresses increase greatly. |
| |
| Keywords: | hydro generators vibration rotors resonance unsymmetrical operation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
