| 基于参数化的航空发动机管路调频方法研究 |
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| 引用本文： | 贾志刚,陈志英.基于参数化的航空发动机管路调频方法研究[J].航空发动机,2008,34(4):34-37. |
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| 作者姓名： | 贾志刚 陈志英 |
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| 作者单位： | 北京航空航天大学,能源与动力工程学院,北京,100191 |
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| 摘 要： | 运用有限元方法,通过计算机仿真,分析了航空发动机复杂管路系统的结构振动,得到了管路固有频率分布状况以及直观的振型特征;基于管路的结构特点,对管路进行了结构模式的分类,根据每种结构模武选取了影响管路动态特性的主要结构参数,并分析了其影响规律.实际应用验证了该调频方法的有效性.
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| 关 键 词： | 航空发动机 管路 参数化 结构振动 有限元 调频 计算机仿真 |
Investigation of Frequency Modulation for Aeroengine Pipeline Based on Parameterization |
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| Authors: | JIA Zhi-gang CHEN Zhi-ying |
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| Institution: | JIA Zhi-gang,CHEN Zhi-ying(School of Jet Propulsion,Beijing University of Aeronautics , Astronautics,Beijing100191,China) |
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| Abstract: | The structural vibration of the aeroengine complex pipeline system was analyzed by the computer simulation with the finite element method.The natural frequency distribution of pipeline and the characteristics of visual vibration model were acquired.The classification of structural mode for the pipeline was conducted based on the structural characteristics of pipeline.The primary structural parameters that affect the pipeline dynamic characteristics were selected according to each structural mode and the eff... |
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| Keywords: | aeroengine pipeline parameterization structural vibration finite element frequency modulation computer simulation |
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