| 某涡喷发动机前轴承弹性支承试验模态分析 |
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| 引用本文： | 孙扬.某涡喷发动机前轴承弹性支承试验模态分析[J].推进技术,1999,20(3):61-63,85. |
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| 作者姓名： | 孙扬 |
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| 作者单位： | 航天工业总公司31所,北京,100074 |
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| 摘 要： | 用脉冲激励法对某发动机前轴承弹性支承进行了试验模态分析，并介绍了试验模态 方法和设备，所得模态分析结果表明，相干函数值均大于０．９，弹性支承的固有频率，振型符合发动机结构设计要求。
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| 关 键 词： | 涡轮喷气发动机 支承结构 轴承 模态分析 |
EXPERIMENT MODAL ANALYSIS ON FRONT BEARING SPRING SUPPORT FOR TURBOJET ENGINE |
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| Sun Yang.EXPERIMENT MODAL ANALYSIS ON FRONT BEARING SPRING SUPPORT FOR TURBOJET ENGINE[J].Journal of Propulsion Technology,1999,20(3):61-63,85. |
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| Authors: | Sun Yang |
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| Institution: | The 31st Research Inst.,Beijing,100074 |
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| Abstract: | A pulse excitation
method and the test equipment for modal test were introduced.An experiment modal analysis of
the front bearing's spring support of engine was completed.The results will be delivered to the
design department of the engine structure,and will be helpful for vibration analysis of the turbojet
engine |
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| Keywords: | Turbojet engine Bearing structure Elastic vibration Modal analysis Modal vibration test |
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