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| 考虑流体作用的转子动力学有限元模型 | |
| 引用本文： | 袁振伟,褚福磊,林言丽,王三保.考虑流体作用的转子动力学有限元模型[J].动力工程,2005,25(4):457-461. |
| 作者姓名： | 袁振伟 褚福磊 林言丽 王三保 |
| 作者单位： | 1. 清华大学,精密仪器与机械学系,北京,100084;郑州大学,化工学院,郑州,450002 2. 清华大学,精密仪器与机械学系,北京,100084 3. 郑州大学,化工学院,郑州,450002 |
| 基金项目： | 教育部跨世纪优秀人才培养计划 |
| 摘 要： | 在不考虑流体作用的转子动力学有限元模型的基础之上,利用流固耦合分析导出的薄圆盘和圆柱体单独在流体中分别作平移和转角振动时受到的流体阻力公式,建立组成转子的圆盘和轴段在流体中的单元运动方程,把作用在转子上的流体力整合到系统整体运动方程中,得到了考虑流体作用的转子动力学有限元模型,即FRDFEM模型。然后用FORTRAN语言编制了考虑流固耦合的大型复杂转子系统动力学分析的有限元计算机程序———RSDA。最后用该计算机程序对某实际涡轮泵转子系统进行了动力学分析。图3表1参19 |
| 关 键 词： | 转子动力学 有限元模型 流固耦合 涡轮泵 动力学分析 |
| 文章编号： | 1000-6761（2005）04-0457-05 |
| 收稿时间： | 2005-02-15 |
| 修稿时间： | 2005-02-152005-06-24 |
A Rotor Dynamics' Finite Element Model with Consideration of the Influential Effect of the Fluid |
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| YUAN Zhen-wei,CHU Fu-lei,LIN Yan-li,WANG San-bao.A Rotor Dynamics'''' Finite Element Model with Consideration of the Influential Effect of the Fluid[J].Power Engineering,2005,25(4):457-461. | |
| Authors: | YUAN Zhen-wei CHU Fu-lei LIN Yan-li WANG San-bao |
| Abstract: | Based on the finite element model of rotor dynamics,which ignores the effect of the fluid,a rotor dynamics finite element model,called FRDFEM,which considers the effect of the fluid is obtained by applying a fluid resistance formula derived by analyzing the interaction between fluid and structural elements for setting up dynamic equations of disk and cylinder elements immersed in fluids,of which the rotor system is composed,and integrating the fluid forces into the global dynamics equations of the rotor system.In a further step,a computer program for comprehensive dynamic analyses of the large and complicated rotor system,caled RSDA,is developed in FORTRAN.Finally,a turbo-pump is being analyzed for its dynamic behavior by using this program.Figs 3,table 1 and refs 19. |
| Keywords: | rotor dynamics finite element model interaction of fluid and structural elements turbo pump dynamic analysis |
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