| 裂纹叶片分布对失谐叶盘结构振动特性的影响* |
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| 引用本文： | 王艾伦,黄飞. 裂纹叶片分布对失谐叶盘结构振动特性的影响*[J]. 振动与冲击, 2011, 30(4): 26. DOI: |
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| 作者姓名： | 王艾伦 黄飞 |
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| 作者单位： | 1.现代复杂装备设计与极端制造教育部重点实验室（中南大学）长沙 410083；2.中南大学机电工程学院 长沙 410083 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)分课题 |
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| 摘 要： | 摘要：基于有限元实体建模方法，建立了含穿透型裂纹的失谐叶盘结构有限元模型，揭示了两个裂纹叶片的分布情况对失谐叶盘结构振动特性的影响规律。研究表明，两个裂纹叶片的分布情况对失谐叶盘结构的基频以及模态局部化程度均有较大影响，并发现当两个裂纹叶片处于相邻位置时，失谐叶盘结构的基频最小，模态局部化程度最高，且该现象在弱耦合条件下尤为突出。而离心力(转速)对含两个裂纹叶片的失谐叶盘结构振动局部化有减弱作用。
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| 关 键 词： | 失谐叶盘结构 基频 裂纹叶片 振动局部化 |
| 收稿时间： | 2009-12-07 |
| 修稿时间： | 2010-02-26 |
Effect of cracked blade distribution on vibration characteristics of a mistuned bladed disk |
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| WANG Ai-lun,HUANG Fei. Effect of cracked blade distribution on vibration characteristics of a mistuned bladed disk[J]. Journal of Vibration and Shock, 2011, 30(4): 26. DOI: |
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| Authors: | WANG Ai-lun HUANG Fei |
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| Affiliation: | 1.Key Laboratory of Modern Complex Equipment Design and Extreme Manufacturing (Central South University), Changsha 410083, China 2. College of Mechanical and Electrical Engineering, Changsha 410083, China |
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| Abstract: | Based on the finite element modeling method,a finite element model of a mistuned bladed disk with through cracks was established.The distribution effect of two cracked blades on vibration characteristics of the mistuned bladed disk was revealed.Research results showed that the distribution of two cracked blades can greatly influence the fundamental frequency of the mistuned bladed disk and the level of modal localization;when two cracked blades locate in the adjacent positions,the fundamental frequency of t... |
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| Keywords: | mistuned bladed disk fundamental frequency cracked blade vibration localization |
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