| 进口动态总压流场对燃机稳定性裕度影响 |
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| 引用本文： | 李孝堂,王勤,薛秀生,王亮,邢志国,王洪祥.进口动态总压流场对燃机稳定性裕度影响[J].航空动力学报,2009,24(11):2403-2409. |
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| 作者姓名： | 李孝堂 王勤 薛秀生 王亮 邢志国 王洪祥 |
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| 作者单位： | 1. 北京航空航天大学,机械工程及自动化学院,北京,100191;中国航空工业集团公司,沈阳发动机设计研究所,沈阳,110015
2. 中国航空工业集团公司,沈阳发动机设计研究所,沈阳,110015 |
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| 摘 要： | 为了得到某燃机发生喘振的原因,在燃机进口进行了动态流场测试,对流场中存在的较大涡旋尺度、较大瞬间动态压力畸变以及与口涡壳共振产生的转速基频脉动等动态流场特点进行了详细研究,获得了进口动态总压流场特点.试验数据和资料分析表明:进口动态流场的特点使发动机稳定裕度损失加大,从而造成发动机喘振.
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| 关 键 词： | 发动机试验 进口流场 动态压力 稳定性裕度 |
| 收稿时间： | 2008/11/13 0:00:00 |
| 修稿时间： | 2009/3/25 0:00:00 |
Influence of inlet dynamic total pressure flow field on gas-turbine engine stability margin |
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| LI Xiao-tang,WANG Qin,XUE Xiu-sheng,WANG Liang,XING Zhi-guo and WANG Hong-xiang.Influence of inlet dynamic total pressure flow field on gas-turbine engine stability margin[J].Journal of Aerospace Power,2009,24(11):2403-2409. |
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| Authors: | LI Xiao-tang WANG Qin XUE Xiu-sheng WANG Liang XING Zhi-guo and WANG Hong-xiang |
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| Institution: | School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;Shenyang Aeroengine Research Institute, Aviation Industry Corporation of China, Shenyang 110015, China;Shenyang Aeroengine Research Institute, Aviation Industry Corporation of China, Shenyang 110015, China;Shenyang Aeroengine Research Institute, Aviation Industry Corporation of China, Shenyang 110015, China;Shenyang Aeroengine Research Institute, Aviation Industry Corporation of China, Shenyang 110015, China;Shenyang Aeroengine Research Institute, Aviation Industry Corporation of China, Shenyang 110015, China;Shenyang Aeroengine Research Institute, Aviation Industry Corporation of China, Shenyang 110015, China |
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| Abstract: | Gas-turbine inlet dynamic total pressure flow field was measured to analyze the reason of surges happened during previous engine tests.Inlet flow field characteristics were obtained such as larger eddy scale and higher instant pressure distortion and pressure fluctuation associated with rotor speed base frequency which caused by the resonance of the engine and the inlet scroll case etc.Experimental data and information show that inlet dynamic flow field characteristics of the above-mentioned will make the engine increase the loss of stability margin and result in the engine surge. |
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| Keywords: | engine test inlet flow field dynamic pressure stability margin |
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