| 含有轴向裂纹的圆柱薄壳的模态分析 |
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| 引用本文： | 王晓波,李凤琴. 含有轴向裂纹的圆柱薄壳的模态分析[J]. 黄河水利职业技术学院学报, 2011, 23(2): 36-38 |
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| 作者姓名： | 王晓波 李凤琴 |
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| 作者单位： | 1. 新乡职业技术学院,河南新乡,453000
2. 黄河水利职业技术学院,河南开封,475003 |
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| 摘 要： | 采用有限元软件ANSYS,对含有轴向裂纹的圆柱薄壳进行模态分析,找出了局部振动的固有频率和振型随裂纹长度变化的规律,发现局部振动对壳体原有振动的影响,即当局部振动的固有频率和壳体原振动的频率相近时,在裂纹附近出现了第三种振动.
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| 关 键 词： | 轴向裂纹 圆柱薄壳 模态分析 固有频率 |
Model Analysis of Thin Cylindrical Shell with Axial Crack |
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| WANG Xiao-bo,LI Feng-qin. Model Analysis of Thin Cylindrical Shell with Axial Crack[J]. Journal of Yellow River Conservancy Technical Institute, 2011, 23(2): 36-38 |
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| Authors: | WANG Xiao-bo LI Feng-qin |
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| Affiliation: | 1.Xinxiang Vocational and Technical College,Xinxiang 453000,Henan,China; 2.Yellow River Conservancy Technical Institute,Kaifeng 475003,Henan,China) |
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| Abstract: | Model of thin cylindrical shell with axial crack was analyzed by finite element software ANSYS.The change rule of natural frequency and vibration model of different crack lengths were obtained.The influence of the partial vibration to original vibration of shell was analyzed.When the natural frequency of vibration is close to the shell original vibration,the third vibration will appear near the crack. |
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| Keywords: | axial crack thin cylindrical shell model analysis natural frequency |
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