| 三峡左岸6号机组小开度异常振动机理研究 |
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| 引用本文： | 钱勤,张双全,陈喜阳,张克危,符建平,熊浩. 三峡左岸6号机组小开度异常振动机理研究[J]. 武汉理工大学学报(交通科学与工程版), 2006, 30(1): 150-153 |
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| 作者姓名： | 钱勤 张双全 陈喜阳 张克危 符建平 熊浩 |
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| 作者单位： | 1. 华中科技大学,武汉,430074
2. 三峡水力发电厂,宜昌,443133 |
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| 摘 要： | 对于三峡左岸电站6号机组在4％开度情况下出现异常振动问题，供货商Alstom公司提出负流量说法．针对这一问题，文中结合CFD技术对真机动特性进行数值模拟，得出该开度下机组不大可能出现负流量的结论，说明Alstom公司给出负流量引发异常振动的解释不尽合理，依据现场试验数据和排除法排除掉水锤波等因索，指出水体共振和自激振动有可能成为异常振动的原因。
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| 关 键 词： | 三峡电站 小开度 振动 数值模拟 |
| 收稿时间： | 2005-10-18 |
| 修稿时间： | 2005-10-18 |
Research on Small Guide Vane Abnormal Vibration Mechanism of Three Gorges Left Bank #6 Generator Unit |
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| Qian Qin,Zhang Shuangquan,Chen Xiyang,Zhang Kewei,Fu Jianping,Xiong Hao. Research on Small Guide Vane Abnormal Vibration Mechanism of Three Gorges Left Bank #6 Generator Unit[J]. journal of wuhan university of technology(transportation science&engineering), 2006, 30(1): 150-153 |
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| Authors: | Qian Qin Zhang Shuangquan Chen Xiyang Zhang Kewei Fu Jianping Xiong Hao |
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| Abstract: | Considering the 4% guide vane abnormal vibration of the three gorges hydropower station left bank # 6 generator unit,it is discovered that negative load is impossible when generator unit is at such operation point base on CFD numerical simulation and the explaination of Alstom Corp is unreasonable. Impossible vibration reasons such as water hammer wave and so on are excluded base on exclusive method and field test. The analysis reveals that the waters resonance vibration and the self-excited vibration are the probable reasons. |
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| Keywords: | CFD |
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