| 基于相似理论的燃气轮机建模技术研究 |
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| 引用本文： | 丁毅,黄向华,张天宏.基于相似理论的燃气轮机建模技术研究[J].航空动力学报,2004,19(5):689-694. |
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| 作者姓名： | 丁毅 黄向华 张天宏 |
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| 作者单位： | 南京航空航天大学,能源与动力学院,江苏,南京,210016 |
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| 基金项目： | 航空科学基金资助项目(01C52015) |
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| 摘 要： | 针对部件特性数据缺乏的情况下如何对燃气轮机建模的问题,提出了基于相似理论的建模方法。运用参考机组与目标机组的转速相似参数和流量相似参数,对参考机组的特性数据进行变换从而获得目标机组特性数据;考虑到参考机组和目标机组的非绝对相似性,对目标机组的特性数据提出了一系列修正措施。该方法已应用于某型燃气轮机建模,仿真结果表明:该模型具有良好的实时性,收敛性与动态响应特性,可以满足控制系统半物理仿真的需要。
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| 关 键 词： | 航空、航天推进系统 燃气轮机 数学模型 部件特性 相似理论 |
| 文章编号： | 1000-8055(2004)05-0689-06 |
| 收稿时间： | 2003/9/30 0:00:00 |
| 修稿时间： | 2003年9月30日 |
The Research of Gas Turbine Performance Modeling Based on Theory of Similarity |
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| DING Yi,HUANG Xiang-hua and ZHANG Tian-hong.The Research of Gas Turbine Performance Modeling Based on Theory of Similarity[J].Journal of Aerospace Power,2004,19(5):689-694. |
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| Authors: | DING Yi HUANG Xiang-hua and ZHANG Tian-hong |
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| Institution: | College of Energy and Power,Nanjing University of Aeronautics and Astronautics,Nanjing210016,China;College of Energy and Power,Nanjing University of Aeronautics and Astronautics,Nanjing210016,China;College of Energy and Power,Nanjing University of Aeronautics and Astronautics,Nanjing210016,China |
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| Abstract: | A new method based on theory of similarity aimed at establishing the gas turbine performance model in case of lacking of component characteristics is presented.Speed similarity and flow similarity are used to modify the component characteristics of a reference gas turbine.Because the object gas turbine is not precisely similar to the reference gas turbine,a series of correction steps to enhance the model accuracy were investigated.The model so obtained was verified by applying to the matter-in-loop simulation experiments of a gas turbine control system.The results show that the model has good real time,convergent and dynamic response property,which satisfies the requirements of matter-in-loop simulation. |
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| Keywords: | aerospace propulsion system gas turbine mathematic model component characteristics theory of similarity |
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