| 燃气轮机转子动力特性分析的旋转对称有限元模型 |
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| 引用本文： | 周传月,闻雪友,刘学义,邹经湘. 燃气轮机转子动力特性分析的旋转对称有限元模型[J]. 航空动力学报, 1999, 14(2): 175-178,220 |
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| 作者姓名： | 周传月 闻雪友 刘学义 邹经湘 |
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| 作者单位： | 1.哈尔滨第七O三研究所 |
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| 摘 要： | 本文给出了燃气轮机转子临界转速和不平衡响应计算分析的旋转对称有限元模型,付立叶级数的引入可以使得三维转子只在一个基础扇区上使用三维单元建立有限元模型。与梁单元相比,实体单元能准确描述转子的几何形状。文中给出了一个验证性算例和一个工程实例。
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| 关 键 词： | 转子 动力特性 付立叶级数 有限元模型 |
| 收稿时间： | 1998-04-01 |
| 修稿时间： | 1999-01-01 |
A ROTATIONAL SYMMETRY FINITE ELEMENT MODEL OF GAS TURBINE ROTOR IN CHARACTERISTICS ANALYSIS |
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| Zhou Chuanyue,Wen Xueyou,Liu Xueyi and Zou Jingxiang. A ROTATIONAL SYMMETRY FINITE ELEMENT MODEL OF GAS TURBINE ROTOR IN CHARACTERISTICS ANALYSIS[J]. Journal of Aerospace Power, 1999, 14(2): 175-178,220 |
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| Authors: | Zhou Chuanyue Wen Xueyou Liu Xueyi Zou Jingxiang |
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| Affiliation: | 1.Harbin No.703 Research Institute, Harbin2.Harbin Institute of Technology, Harbin 150001 |
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| Abstract: | A rotational symmetry finite element model is provided to calculate gas turbine shaft critical speeds and unbalance response analysis.A Fourier series representation allows the three-dimensional shaft geometry to be modeled in a basic section by using three-dimensional element.Unlike a beam element model,a solid element representation allows the actual rotor geometry to be modeled.A matrix reduction technique is used to reduce the degrees of freedom.An engineering example of marine gas turbine rotor is applied to the verification of the provided model. |
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| Keywords: | Rotor Dynamic characteristics Fourier series Finite Element Model |
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