抽水蓄能电站螺栓应力监测方法
Methods of Bolt Stress Monitoring for Pumped Storage Power Station
赵强 1徐亚鹏 1郭鹏 1曹佳丽 1王佳彬 1崔泰然1
作者信息
- 1. 国网新源控股有限抽水蓄能技术经济研究院,北京市 100053
- 折叠
摘要
螺栓承受轴向载荷时,伸长量和应力变化规律遵循广义胡克定律.现有的监测方法都是通过伸长量的变化监测螺栓的应力水平,进而评价螺栓的安全状况.随着微变形测试方法的发展,利用声学、光学、电学等监测手段均广泛应用于抽水蓄能电站螺栓的应力水平监测.本文简述了目前应用最为广泛的几种监测应力方法的原理和应用特点.
Abstract
The variation of elongation and stress follows generalized Hooke's law when a bolt is subjected to axial load.The current monitoring methods are to the stress level of bolts through the change of elongation,and then evaluate the safety status of bolts.With the development of micro-deformation measurement methods,acoustic,optical and electrical monitoring methods had been widely used to monitor the stress level of bolts in pumped storage power stations.The principle and application characteristics of several widely used stress monitoring methods were briefly described in this paper.
关键词
抽水蓄能电站/螺栓/应力监测/声弹法/光纤光栅法/电阻应变法/电容法Key words
pumped storage power station/bolts/stress monitoring/acoustoelastic method/fiber grating method/resistance strain method/capacitance method引用本文复制引用
基金项目
国网新源集团有限公司科技项目(SGXYKJ-2022-045)
出版年
2024
NETL
NSTL
万方数据