| 多状态气路分析法诊断发动机故障的分析 |
| |
| 引用本文： | 陈大光,韩凤学,唐耿林.多状态气路分析法诊断发动机故障的分析[J].航空动力学报,1994,9(4):349-352,440. |
| |
| 作者姓名： | 陈大光 韩凤学 唐耿林 |
| |
| 作者单位： | 北京航空航天大学 |
| |
| 摘 要： | 对多状态气路分析法诊断发动机故障的可行性进行了分析。估值平均误差Ｊ是判断诊断精度的有效判据。通过数值试验给出了Ｊ值的建议值。就状态数的选择和监视参数的选择对诊断效果的影响进行了分析。通过分析指出适当增加和正确选择监视参数可减少状态数，增加诊断精度。增加高压压气机后压力和高低压涡轮间的压力两个测量参数是实用的改善诊断精度的方法。
|
| 关 键 词： | 燃气轮机 航空发动机 故障诊断 气路分析 |
| 收稿时间： | 1993/11/1 0:00:00 |
| 修稿时间： | 3/1/1994 12:00:00 AM |
A MULTI-OPERATING POINTS GPA METHOD FOR ENGINE FAULT DIAGNOSIS |
| |
| Chen Daguang,Han Fengxue and Tang Genglin.A MULTI-OPERATING POINTS GPA METHOD FOR ENGINE FAULT DIAGNOSIS[J].Journal of Aerospace Power,1994,9(4):349-352,440. |
| |
| Authors: | Chen Daguang Han Fengxue and Tang Genglin |
| |
| Institution: | 4th Dept.,Beijing University of Aeronautics and Astronautics,Beijing 100083;4th Dept.,Beijing University of Aeronautics and Astronautics,Beijing 100083;4th Dept.,Beijing University of Aeronautics and Astronautics,Beijing 100083 |
| |
| Abstract: | The feasibility of the multi-operating points gas path analysis (GPA) for engine fault diagnosis has been analyzed.The averaged error of estimation J is an effective criterion for determining the diagnosis accuracy.The recommended value of J has been given according to the numerical tests.It has been analyzed how the number of the operating points and the selection of the monitoring parameters affect the effectiveness of diagnosis.It is shown that the number of the necessary operating points can be significantly reduced and the diagnosis accuracy can be enhanced as the mointoring parameters are increased properly and selected correctly.Supplemental measurement of the pressure behind high pressure compressor and the pressure between high and low pressure turbines is a practicable measure for improving the diagnosis accuracy. |
| |
| Keywords: | Gas turbines Aircraft engines Fault diagnosis Gas path analysis |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《航空动力学报》浏览原始摘要信息 |
| 点击此处可从《航空动力学报》下载免费的PDF全文 |
