| 基于HHT的航空发动机气动失稳信号 |
| |
| 引用本文： | 郭贵喜,王振华,王洪祥,高辉国,薛秀生.基于HHT的航空发动机气动失稳信号[J].航空发动机,2013,39(3):62-67. |
| |
| 作者姓名： | 郭贵喜 王振华 王洪祥 高辉国 薛秀生 |
| |
| 作者单位： | 中航工业沈阳发动机设计研究所,沈阳,110015 |
| |
| 摘 要： | 针对航空发动机工作范围内存在的气动失稳现象,运用希尔伯特-黄变换(HHT)分析其信号的时变特征；通过对其处理非线性、非平稳信号分析新方法与其他时频分析方法的对比,并对HHT存在的问题进行针对性解决,使其适应航空发动机气动失稳数据分析的要求.并在Labview平台上通过数字仿真试验实现和验证了HHT方法；结果表明:此算法准确有效；通过航空发动机工程试验数据的处理过程,验证了HHT在处理此类相关问题时的可行性、适用性,同时指出其仍然存在的缺陷.
|
| 关 键 词： | 时频分析 希尔伯特-黄变换 航空发动机 气动失稳 |
Time-frequency Analysis Method of Aeroengine Aerodynamic Instability Signal Based on Hilbert-Huang Transform |
| |
| Authors: | GUO Gui-xi WANG Zhen-hu WANG Hong-xiang GAO Hui-guo |
| |
| Institution: | AVIC Shenyang Engine Design and Research Institute , Shenyang 110015, Chin |
| |
| Abstract: | Aiming at aerodynamic instability in aeroengine work scope, the time varying signal characteristics were analyzed by Hilbert-Huang Transform (HHT). The analysis new method of nonlinear and non-stationary signal was compared with other time-frequency analysis methods. The problems of HHT were solved to adapt the data analysis requirements of aeroengine aerodynamic instability. HHT method was implemented and verified on Labview platform by the numerical simulation test. The results show the method is accurate and effective and the project test data processing of aeroengine is presented. The HHT is feasibility and adaptability to solve relative problems. There are some little defection for HHT method also |
| |
| Keywords: | time-frequency analysis Hilbert-Huang Transform aeroengine aerodynamic instability |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《航空发动机》浏览原始摘要信息 |
| 点击此处可从《航空发动机》下载免费的PDF全文 |
|
