| 涡轮盘-叶片整体振动固有模态有限元分析 |
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| 引用本文： | 赵永健,张大千,赵卫强.涡轮盘-叶片整体振动固有模态有限元分析[J].沈阳航空工业学院学报,2005,22(5):4-6. |
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| 作者姓名： | 赵永健 张大千 赵卫强 |
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| 作者单位： | 沈阳航空工业学院,辽宁,沈阳,110034 |
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| 摘 要： | 在动力分析中、固有模态是十分重要的.固有模态分析的结果是多种动态行为的判据,也是进一步进行结构动力学分析的基础数据.为了分析方便,对某发动机高压涡轮盘-叶片进行了合理的简化,利用UG三维建模和有限元计算,分别进行了涡轮盘联接孔全约束和完全自由状态下固有模态计算,给出了两种约束前十阶的固有频率和振型图.说明了各阶固有频率振型的运动特点,以及不同形式的振型振动对涡轮盘-叶片和其它结构系统的不利影响.分析结果对某航空发动机的动力分析有一定参考价值.
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| 关 键 词： | 涡轮盘-叶片 振动 固有模态 有限元 |
| 文章编号： | 1007-1385(2005)05-0004-03 |
| 修稿时间： | 2005年9月16日 |
Finite element analysis on inherent mode of turbine disk- blade |
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| ZHAO Yong-Jian,ZHANG Da-Qian,ZHAO Wei-Qiang.Finite element analysis on inherent mode of turbine disk- blade[J].Journal of Shenyang Institute of Aeronautical Engineering,2005,22(5):4-6. |
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| Authors: | ZHAO Yong-Jian ZHANG Da-Qian ZHAO Wei-Qiang |
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| Abstract: | Inherent mode is very important in dynamical analysis,and the result of inherent mode analysis can be used as criterion of many dynamic characteristics as well as basic data of further analysis.A kind of aero-engine high pressure turbine blade is simplified and the inherent mode with the turbine join hole fully constrained and in free state is calculated respectively using UG 3-D modeling and Finite element analysis,and the first 10 inherent frequencies and modal figures is given in this paper.The basic reason for different modes and the bad effects on the turbine blades and other structure system are also discussed.The analysis result can be referenced for dynamical analysis of aero-engine. |
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| Keywords: | Turbine disk-blade Vibration Inherent modal Finite element method |
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