南方能源建设2016，Vol.3Issue(2)：67-71,76,6.DOI:10.16516/j.gedi.issn2095-8676.2016.02.013
基于频率和模态的变电构架损伤识别研究
Research on Damage Detection Method for Substation Gantry Structures Based on Natural Frequencies and Mode Shapes
林刚 1韦文兵 1冯晓东1
作者信息
- 1. 中国能源建设集团广东省电力设计研究院有限公司，广州510663
- 折叠
摘要
Abstract
Gantry Structures are very important devices whose’ safety is closely related to substation. A theoretical model for detecting gantry structures’ damage based on natural frequencies and mode shapes has been proposed in the present paper. In order to improve sensitivity, partial frequencies and mode shapes have been chosen to detect damage, also a measurement point selection algorithm is developed by using the prior information of sensors to solve ill-posed problem in damage identification. The optimal measurement se-lection algorithm, parameter identification algorithm and error updating algorithm are alternately conducted to estimate the uncertainty of the prior information of sensors, which are used to improve to the precision of identification result.关键词
变电构架/频率/模态/损伤识别Key words
substation gantry structures/frequencies/mode Shapes/damage detection分类
信息技术与安全科学引用本文复制引用
林刚,韦文兵,冯晓东..基于频率和模态的变电构架损伤识别研究[J].南方能源建设,2016,3(2):67-71,76,6.
