噪声与振动控制2016，Vol.36Issue(4)：174-177,205,5.DOI:10.3969/j.issn.1006-1335.2016.04.037
柔度曲率法在输电塔损伤识别中的应用
Application of Flexibility Curvature Method in Damage Detection of Transmission Towers
摘要
Abstract
The fingerprint identification and damage identification methods based on flexibility method can be used to identify the damage location and intensity. In this paper, the flexibility curvature damage identification index and flexibility curvature difference matrix damage identification index are built based on the method of flexibility. These indexes are introduced to the damage identification of transmission tower structures. Since the transmission tower has three translational motion components and each of the two damage identification indexes also has three direction components, the recognition effect of the damage in the transmission tower needs further analysis. So, a model of 51 meter-high glass-shaped transmission tower is established, the two indexes are used to identify the single damage and multi damage of the tower structures. The results show that only using the flexibility matrix of the vertical component of the structure can identify the structure damage. Both indexes have good effect, but the flexibility curvature method is unlikely to recognize the location of small damage. While the flexibility curvature difference matrix method can identify the location of the small damages.关键词
振动与波/酒杯型输电塔/柔度曲率/柔度曲率差/损伤识别/模态分析Key words
vibration and wave/glass-shaped transmission tower/flexibility curvature/flexibility curvature difference/damage identification/modal analysis分类
信息技术与安全科学引用本文复制引用
吴秀峰,常青..柔度曲率法在输电塔损伤识别中的应用[J].噪声与振动控制,2016,36(4):174-177,205,5.基金项目
辽宁省一般项目资助(L2015222) （L2015222）
