| 基于分形理论的航空发动机推力性能衰退规律 |
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| 引用本文： | 于锦禄,何立明,孙冬,李天亮,孙晓东.基于分形理论的航空发动机推力性能衰退规律[J].航空动力学报,2010,25(10):2302-2306. |
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| 作者姓名： | 于锦禄 何立明 孙冬 李天亮 孙晓东 |
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| 作者单位： | 1. 空军工程大学,工程学院,西安,710038
2. 中国人民解放军94333部队,潍坊,261051 |
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| 摘 要： | 考虑到航空发动机本身及影响因素的复杂性,从研究复杂系统的角度出发建立了基于De Wijs分形理论的航空发动机推力衰退模型,在此基础上对航空发动机的推力性能衰退规律进行了分析和研究.研究发现航空发动机使用过程中全加力状态推力的衰变具有生物体寿命衰退特征,并在一定程度上可用维数为0.761的De Wijs分形曲线近似.
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| 关 键 词： | 航空发动机 性能衰退 推力 分形曲线 健康指数 |
| 收稿时间： | 2009/9/26 0:00:00 |
| 修稿时间： | 2010/6/22 0:00:00 |
Investigation of aero-engine thrust performance deterioration rules based on fractal theory |
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| YU Jin-lu,HE Li-ming,SUN Dong,LI Tian-liang and SUN Xiao-dong.Investigation of aero-engine thrust performance deterioration rules based on fractal theory[J].Journal of Aerospace Power,2010,25(10):2302-2306. |
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| Authors: | YU Jin-lu HE Li-ming SUN Dong LI Tian-liang and SUN Xiao-dong |
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| Institution: | The Engineering Institute, Air Force Engineering University, Xi'an 710038, China;The Engineering Institute, Air Force Engineering University, Xi'an 710038, China;The Engineering Institute, Air Force Engineering University, Xi'an 710038, China;The Engineering Institute, Air Force Engineering University, Xi'an 710038, China;Unit 94333, The Chinese People's Liberation Army, Weifang 261051, China |
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| Abstract: | Considering the complexity of aero-engine and influential factors,a deterioration model for engine thrust degradation was established with De Wijs fractal theory from the perspective of complex system.Aero-engine thrust deterioration rules was analyzed and investigated based on this model.It's found that the thrust deterioration in full afterburning condition is characterized by aging of organism,and can be modeled by the De Wijs fractal curve with fractal dimension of 0.761 to some extent. |
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| Keywords: | aero-engine performance deterioration thrust fractal curve health index |
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