面向复合绝缘子芯棒缺陷诊断的半解析有限元建模
Semi-analytical finite element modeling for composite insulator core rod defect diagnosis
林立鹏 1陈衡涛 1郑寅 1李晓明 1李秀标 1胡冠球 1王江煌2
作者信息
- 1. 广东电网有限责任公司揭阳供电局,广东 揭阳 522000
- 2. 广东工业大学 自动化学院,广州 510006
- 折叠
摘要
由于复合绝缘子芯棒/伞裙具有层状结构的特点,存在超声波诊断应用中无法直接区分纵向模态和扭转模态的问题,不利于超声诊断技术在复合绝缘子缺陷诊断中的模态设计与应用.采用半解析有限元(SAFE)的建模方法,结合复合绝缘子中纵向模态和扭转模态下的力学特性,建立得到可用于独立计算纵向模态和扭转模态的SAFE模型.该模型可用于简化复合绝缘子诊断技术中复杂模态区分的繁琐流程,减少SAFE模型的计算工作量,利于工程应用中复合绝缘子内缺陷诊断的快速扫查应用.
Abstract
Due to the layered structure of composite insulator core rod/umbrella skirt,it is impossible to directly distinguish the longitudinal mode and torsional mode in the application of ultrasonic diagnosis,which is not conducive to the design and application of ultrasonic diagnostic technology for the modal design of defect diagnosis of composite insulators.Therefore,the semi-analytical finite element(SAFE)modeling method is used to combine the mechanical characteristics of composite insulator under the longitudinal mode and torsional mode,the SAFE model that can be used to independently calculate the longitudinal mode and torsional mode is established.The model can be used to simplify the tedious process of complex mode differentiation in composite insulator diagnosis technology,reduce the calculation workload of SAFE model,and can be used for rapid scanning application of composite insulator internal defect diagnosis.
关键词
复合绝缘子/超声诊断/半解析有限元Key words
composite insulator/ultrasonic diagnosis/semi-analytical finite element引用本文复制引用
基金项目
南方电网公司科技项目(035200KK52220029)
南方电网公司科技项目(GDKJXM20220880)
出版年
2024
NETL
NSTL
万方数据