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| 混流式水轮机转轮叶片裂纹故障及其原因分析 | |
| 引用本文： | 罗伟文,郑时雄,黄振峰,包家福.混流式水轮机转轮叶片裂纹故障及其原因分析[J].新技术新工艺,2006(9):28-30. |
| 作者姓名： | 罗伟文 郑时雄 黄振峰 包家福 |
| 作者单位： | 1. 华南理工大学,广东,广州,510640;广西大学,广西,南宁,530004 2. 华南理工大学,广东,广州,510640 3. 广西大学,广西,南宁,530004 |
| 摘 要： | 混流式水轮机转轮叶片裂纹故障严重影响了水电站的安全稳定运行和经济效益的发挥。大部分叶片裂纹是疲劳裂纹，主要由流固耦合共振诱发的、过大交变应力引起。转轮在设计和制造过程中形成的各种缺陷以及过大的残余拉应力加速了裂纹的萌生和扩展。 |
| 关 键 词： | 混流式水轮机 转轮 叶片裂纹 振动 |
| 收稿时间： | 2006-03-20 |
| 修稿时间： | 2006-03-20 |
Analysis of Cracks in Francis Turbine Runner Blades and its Reasons |
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| LUO Weiwen,ZHENG Shixiong,HUANG Zhenfeng,BAO Jiafu.Analysis of Cracks in Francis Turbine Runner Blades and its Reasons[J].New Technology & New Process,2006(9):28-30. | |
| Authors: | LUO Weiwen ZHENG Shixiong HUANG Zhenfeng BAO Jiafu |
| Abstract: | Cracks in Francis turbine runner blades threaten the safety, stability and economic profits of the hydropower station. Most of them are fatigue cracks, which are mainly caused by the excessive alternating stress induced by fluid-solid coupling resonance. Various defects of the runner caused in its design, manufacture process and excessive residual tensile stress promote the initiation and development of cracks excessively. |
| Keywords: | francis turbine runner cracks in runner blades vibration |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |