| 输电塔法兰联结节点螺栓松动损伤诊断改进的模糊模式识别方法 |
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| 引用本文： | 瞿伟廉,秦文科.输电塔法兰联结节点螺栓松动损伤诊断改进的模糊模式识别方法[J].地震工程与工程振动,2006,26(6):138-143. |
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| 作者姓名： | 瞿伟廉 秦文科 |
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| 作者单位： | 武汉理工大学,道路桥梁与结构工程湖北省重点实验室,湖北,武汉,430070 |
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| 基金项目： | 国家自然科学基金项目(50378074) |
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| 摘 要： | 本文针对输电塔架结构的损伤特点,采用优化等效的方法,建立了具有螺栓松动损伤的输电塔结构的有限元模型,同时提出了此结构螺栓松动损伤诊断基于应变模态的改进的模糊模式识别方法。通过距离贴近度与相似贴近度的双重识别,可达到对输电塔架结构螺栓松动损伤的位置和程度的诊断。对湘江输电塔架结构的数值仿真分析,表明本文提出的损伤诊断方法的结果是令人满意的,具有实际工程应用价值。
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| 关 键 词： | 输电塔 螺栓松动损伤 模糊模式识别 应变模态 |
| 文章编号： | 1000-1301（2006）06-0138-06 |
| 收稿时间： | 2006-10-09 |
| 修稿时间： | 2006-10-092006-11-12 |
Updating fuzzy-pattern identification approach to flange-joint bolted looseness damage in transmission tower structures |
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| Qu Weilian,Qin Wenke.Updating fuzzy-pattern identification approach to flange-joint bolted looseness damage in transmission tower structures[J].Earthquake Engineering and Engineering Vibration,2006,26(6):138-143. |
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| Authors: | Qu Weilian Qin Wenke |
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| Abstract: | In this paper,adopting the optimization equivalent method,the finite element model of transmission tower structure with bolted looseness-damage is set up according to the damaging characteristic of this tower structure.An updating detection approach to fuzzy-pattern identification based on strain mode is also presented to locate the specific bolted looseness damage by the reduplicative detection of distance nest degree and proportion nest degree.Performance of the proposed damage detection approach is demonstrated by the analysis of Xiang jiang transmission tower structure. |
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| Keywords: | transmission tower structure bolted looseness damage fuzzy mode identification strain mode |
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