| 基于实验模态分析的航空电子机箱振动特性研究 |
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| 引用本文： | 孟玥然,李传日,李当当.基于实验模态分析的航空电子机箱振动特性研究[J].强度与环境,2010,37(5):34-39. |
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| 作者姓名： | 孟玥然 李传日 李当当 |
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| 作者单位： | 北京航空航天大学可靠性与系统工程学院,北京,100191 |
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| 摘 要： | 论述了使用实验模态分析方法对某型号航空电子机箱测量频响函数的全过程;通过参数识别方法获得了产品的模态,进而确定了产品的振动特性;最后,使用有限元软件工具对产品FEA模型进行了动力学仿真分析,将仿真结果与模态实验结果进行比对,并修正了产品的有限元模型。
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| 关 键 词： | 实验模态分析 有限元分析 模态参数识别 频响函数 电子机箱 |
Dynamic characteristics research of an airborne electronic box based on experimental modal analysis |
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| Meng Yueran,Li Chuanri,Li Dangdang.Dynamic characteristics research of an airborne electronic box based on experimental modal analysis[J].Structure & Environment Engineering,2010,37(5):34-39. |
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| Authors: | Meng Yueran Li Chuanri Li Dangdang |
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| Institution: | Meng Yueran Li Chuanri Li Dangdang(School of Reliability ＆ Systems Engineering,Beihang University,Beijing 100191,China) |
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| Abstract: | This paper gives a detailed discussion on the process of measuring frequency response functions（FRFs） for a airborne electronic box based on experimental modal analysis.The modes and vibration characteristics can be determined by the identification of modal parameters.Finally,the FEA model of the airborne electronic box modified by the results of the modal test needs to be simulated to analyze its structural dynamic characteristics. |
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| Keywords: | experimental modal analysis finite element analysis identification of modal parameters FRFs electronic box |
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