机械制造与自动化2025，Vol.54Issue(2)：262-265,307,5.DOI:10.19344/j.cnki.issn1671-5276.2025.02.051
计及动态疲劳损伤特征的变压器非接触式激光测振技术
Non-contact Laser Vibration Measurement Technology of Transformer Considering Dynamic Fatigue Damage Characteristics
陆旭锋 1沙杰 1董海庆1
作者信息
- 1. 国网上海市电力公司嘉定供电公司,上海 201899
- 折叠
摘要
Abstract
In order to accurately measure the vibration of transformers,a non-contact laser vibration measurement technology for transformers considering dynamic fatigue damage characteristics is proposed.Based on the force acting on the silicon steel plate and coil of the transformer in the magnetic field,the generation mechanism of the transformer vibration signal is obtained.By analyzing the vibration transmission pathways of the iron core and coil,the vibration transmission pathways of the transformer are studied.A matrix is applied to describe the frequency response function of a transformer,the operating state of the transformer is obtained by calculating the imaginary part difference of the frequency response function.Combined with the attenuation coefficient,the dynamic fatigue damage characteristics of the transformer are extracted.A non-contact laser vibration meter for transformers is designed to achieve the non-contact laser vibration measurement of transformers.The experimental results show that the proposed technology can measure vibration signals based on the fatigue damage characteristics of transformers,and raise the vibration measurement accuracy up to over 90%.关键词
疲劳损伤/特征提取/非接触式/变压器/激光测振/信号传递Key words
fatigue damage/feature extraction/non-contact/transformer/laser vibration measurement/signal transmission分类
信息技术与安全科学引用本文复制引用
陆旭锋,沙杰,董海庆..计及动态疲劳损伤特征的变压器非接触式激光测振技术[J].机械制造与自动化,2025,54(2):262-265,307,5.
