| 大涵道比涡扇发动机风扇叶片振动模态分析 |
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| 引用本文： | 张强,张永峰,马双元.大涵道比涡扇发动机风扇叶片振动模态分析[J].沈阳航空工业学院学报,2011,28(3):14-17. |
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| 作者姓名： | 张强 张永峰 马双元 |
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| 作者单位： | 中国飞行试验研究院发动机所,陕西西安,710089 |
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| 摘 要： | 对大涵道比涡扇发动机而言,风扇叶片承受较大的离心负荷和振动负荷,振动故障尤为突出。为了研究风扇叶片自身的振动特性,针对风扇叶片进行有限元建模,计算了凸肩自由和凸肩约束两种工作状态下叶片的固有频率和振型。结果表明发动机转速及凸肩状态对叶片固有频率有显著的影响,对大涵道比涡扇发动机风扇叶片的振动特性研究具有重要的参考价值。
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| 关 键 词： | 大涵道比涡扇发动机 风扇叶片 凸肩 有限元 振动模态 |
Modal analysis of high bypass turboengine fan blade |
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| ZHANG Qiang,ZHANG Yong-feng,MA Shuang-yuan.Modal analysis of high bypass turboengine fan blade[J].Journal of Shenyang Institute of Aeronautical Engineering,2011,28(3):14-17. |
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| Authors: | ZHANG Qiang ZHANG Yong-feng MA Shuang-yuan |
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| Institution: | (China Flight Test Establishment,Shanxi Xi′an,710089) |
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| Abstract: | For high bypass ratio fans,the aeroengine always failures to work because the shrouded blades constantly suffer great centrifugal and vibration loads.To study the vibration characteristics of fan blades,the finite element model is established,and natural frequencies and vibration modes are calculated when the shroud is free and constrained respectively.It is found that the natural frequencies are effected by the engine speed and shroud station.The conclusions are of significance for further study on vibrati... |
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| Keywords: | high bypass turboengine fan shrouded blade finite element vibration mode |
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