| 铝合金叶轮共振振型的研究 |
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| 引用本文： | 刘松.铝合金叶轮共振振型的研究[J].失效分析与预防,2011,6(4):224-228. |
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| 作者姓名： | 刘松 |
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| 作者单位： | 中航南京机电液压工程研究中心,南京,211106 |
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| 摘 要： | 应用有限元模态分析确定了共振失效的某铝合金叶轮各阶振型和各节点相对振动应力.根据叶轮结构特征和裂纹萌生部位,结合Goodman力学理论和疲劳断裂条件,计算出叶轮实际工作情况下发生共振疲劳断裂时长、短叶片的振动应力比.通过各阶振型的长、短叶片相对振动应力比与实际叶轮发生共振疲劳断裂时所需振动应力比条件的对比研究,结果表明...
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| 关 键 词： | 模态分析 振型 振动应力 共振 疲劳断裂 |
Resonance Vibration Modes of Aluminum Alloy Blade Wheel |
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| LIU Song.Resonance Vibration Modes of Aluminum Alloy Blade Wheel[J].Failure Analysis and Prevention,2011,6(4):224-228. |
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| Authors: | LIU Song |
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| Affiliation: | LIU Song(AVIC Nanjing Engineering Institute of Aircraft Systems,Nanjing 211106,China) |
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| Abstract: | The vibration modes and relative stresses of the aluminum alloy blade wheel disabled due to resonance vibration were studied and determined by finite element model analysis.The vibration stress ratios of the long and short blades at the time of resonance fatigue fracture under working condition were calculated based on the Goodman mechanical theory and fatigue fracture condition.The vibration stress ratios of the long and short blades in different steps were contrasted with the vibration stress ratio for re... |
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| Keywords: | modal analysis vibration mode vibration stress resonance vibration fatigue fracture |
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