摘要
结构在长期服役过程中受外界因素的影响,发生老化、腐蚀、疲劳等损伤。因此,结构损伤识别成为工程界和科研界的研究热点。文中系统总结了基于模态参数的结构损伤识别方法的研究进展,着重介绍了基于频率变化、振型变化、曲率模态变化、模态应变能变化、残余力向量变化和传递函数变化等不同类型的损伤识别方法,并对其优缺点进行了对比和分析,并对其未来的发展趋势作了预测,望能为今后的损伤识别技术的研究和应用提供参考。
The structures in long-term operation are subject to external factors,such as aging,corrosion,and fa-tigue,which can cause damage.Hence,structural damage identification has become a research hotspot in the engi-neering and scientific community.This paper provides a comprehensive review of research progress regarding struc-tural damage identification methods based on modal parameters.In particular,we focus on dfferent types of damage identification methods based on frequency changes,mode shape changes,curvature mode changes,modal strain en-ergy changes,residual force vector changes,and transfer function changes.The advantages and disadvantages of each method are compared and analyzed,and future development trends are predicted to provide the reference for the research and applications of damage identification technology in the future.
作者
李文晶
孟昭博
LI Wenjing;MENG Zhaobo(School of Civil Engineering,Liao Cheng University,Shandong Liaocheng 252000,China)
出处
《低温建筑技术》
2023年第11期94-97,共4页
Low Temperature Architecture Technology
关键词
研究热点
损伤识别
模态参数
research hotspots
damage identification
modal parameters
