| 某型飞机飞参振动数据分析 |
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| 引用本文： | 王小飞,袁涛,徐风磊,姚凌虹. 某型飞机飞参振动数据分析[J]. 计测技术, 2019, 39(3) |
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| 作者姓名： | 王小飞 袁涛 徐风磊 姚凌虹 |
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| 作者单位： | 海军航空大学青岛校区,山东青岛,266041;海军航空大学青岛校区,山东青岛,266041;海军航空大学青岛校区,山东青岛,266041;海军航空大学青岛校区,山东青岛,266041 |
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| 摘 要： | 介绍了常用的振动数据分析方法,选取某型飞机飞行状态较为稳定的飞参振动数据进行了仿真分析,并针对仿真过程中出现的频率进行了定性分析。仿真实验通过多组数据的频谱统计分析,发现左发动机自由涡轮存在轻微不对中问题。对于发动机异常振动识别具有重要意义。
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| 关 键 词： | 飞参振动数据 仿真分析 异常识别 |
Research on Flight Vibration Data for an Airplane |
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| Abstract: | It is an international hotspot to monitor the working condition of aero-engine using vibration data. Firstly, three familiar analysis methods for vibration data are introduced; secondly, emulation analysis based on vibration data under steady flight condition are made; lastly, qualitative analysis for the extrusive frequence in the emulation are made. Statistical analysis based on the frequency of multi vibration data suggests that there may be some asymmetry failures in the free turbine which is important for the novelty detection of aero-engine vibration. |
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| Keywords: | flight vibration data emulation analysis novelty detection |
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