| 错频转子系统动力特性研究 |
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| 引用本文： | 范伯钧,赵营,王延荣.错频转子系统动力特性研究[J].燃气涡轮试验与研究,2005,18(1):45-48,62. |
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| 作者姓名： | 范伯钧 赵营 王延荣 |
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| 作者单位： | 1. 北京航空航天大学,能源与动力工程学院,北京,100083
2. 中国航天科工集团公司,二院,北京,100854 |
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| 摘 要： | 根据某级压气机叶／盘转子的实际结构，建立了叶／盘带短轴的有限元模型。采用NASTRAN结构分析软件，得到了模化协调转子所需的数据，构建了多自由度叶／盘转子系统动力学模型，并在此基础上通过改变多自由度模型中叶片刚度实现错频。采用基尔法求解错频转子系统的运动方程。获得了此多自由度系统的动态响应，并对不同错频方案进行了对比分析。
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| 关 键 词： | 转子系统 运动方程 多自由度系统 短轴 求解 动态响应 动力特性 压气机 动力学模型 刚度 |
| 文章编号： | 1672-2620(2005)01-0045-04 |
Dynamic Characteristic Analysis of a Mistuned Rotor System |
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| FAN Bo-jun,ZHAO Ying,WANG Yan-rong.Dynamic Characteristic Analysis of a Mistuned Rotor System[J].Gas Turbine Experiment and Research,2005,18(1):45-48,62. |
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| Authors: | FAN Bo-jun ZHAO Ying WANG Yan-rong |
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| Institution: | FAN Bo-jun1,ZHAO Ying2,WANG Yan-rong1 |
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| Abstract: | According to the real structure of the bladed disk, a FEM model of one stage bladed disk and an elastic shaft is established. The data, which have been used to establish multiple degree-of-freedom model of a bladed disk, can be obtained by using the commercial finite element method software package MSC/NASTRAN. On this basis, mistuning patterns are completed through altering the stiffness of the blade model. And then the motion equations of the system of a bladed disk are solved by Gill method. Finally, with computing the forced response of the mistuned rotor, the six mistuning patterns have been compared and evaluated. |
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| Keywords: | mistuned rotor dynamic characteristics Gill method |
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