| 某型飞机飞参振动数据分析 |
| Research on Flight Vibration Data for an Airplane |
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| 中文摘要: |
| 通过振动数据来研究航空发动机的工作状况是国内外研究的热点话题。本文介绍了常用的振动数据分析方法，然后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，这对于发动机异常振动识别具有重要意义。 |
| 英文摘要: |
| 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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| 中文关键词: 飞参振动数据 仿真分析 异常识别 |
| 英文关键词:flight vibration data emulation analysis novelty detection |
| 基金项目: |
| DOI：10.11823/j.issn.1674-5795.2019.03.14 |
| 引用本文：王小飞，袁涛，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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