| 混流式水轮发电机系统的动态模型及响应 |
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| 引用本文： | 蔡敢为,蓝永庭,李兆军,杨旭娟.混流式水轮发电机系统的动态模型及响应[J].吉林大学学报(工学版),2009,39(4):976-981. |
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| 作者姓名： | 蔡敢为 蓝永庭 李兆军 杨旭娟 |
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| 作者单位： | 1. 广西大学,机械工程学院,南宁,530004
2. 广西工学院,应用技术学院,广西,柳州,545006 |
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| 基金项目： | 国家自然科学基金项目(50175031,50565001)；广西科学基金项目（0542005,0832030）；广西制造系统与先进制造技术重点实验室主任课题（桂科能07109008009Z,07109008-003-Z） |
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| 摘 要： | 针对在高水头、大流量水流和强电磁场的共同作用下,水轮发电机组时常发生激烈振动的难题,尝试从全局耦合的角度,运用有限单元法,通过分析水轮发电机组的机电耦合关系和液固耦合关系,建立表达上述耦合关系的发电机单元、主轴单元和板壳单元,在此基础上,建立混流式水轮发电机系统的非线性动态方程,为进一步分析系统的振动机理提供了一种新的模型。
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| 关 键 词： | 机械学 水轮发电机 耦合 有限元法 非线性 振动 |
| 收稿时间： | 2008-01-23 |
| 修稿时间： | 2008-04-27 |
Nonlinear dynamic model and response of francis hydro-generator system |
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| CAI Gan-wei,LAN Yong-ting,LI Zhao-jun,YANG Xu-juan.Nonlinear dynamic model and response of francis hydro-generator system[J].Journal of Jilin University:Eng and Technol Ed,2009,39(4):976-981. |
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| Authors: | CAI Gan-wei LAN Yong-ting LI Zhao-jun YANG Xu-juan |
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| Abstract: | Under the associative action of high head,high flow rate and strong electromagnetic field,the severe vibration of hydraulic turbine-generator units occurs frequently and the law of vibration is quite complicated.It was attempted that by analyzing the electromechanical coupling relations and fluid-structure interaction of hydraulic turbine-generator units,generator element,chief axis element and board shell element which express the above coupling relations were established by the finite element methods from the point of view of global coupling.On the basis of those,nonlinear dynamic equation of Francis hydraulic turbine-generator system was established to provide a new analysis model for further analysing the vibration mechanism of system. |
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| Keywords: | mechanics hydro-generator coupling finite element method nonlinear vibration |
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