文献类型：期刊文献

英文题名：Baseline-free damage identification in clamped-clamped pipes based on regional resonance pairs

作者：Wang, Mingyuan[1];Gu, Yiqing[1];Fu, Yingjie[1];Zhu, Yuankang[1];Jia, Jiuhong[1];Tu, Shan-Tung[1]

机构：[1]East China Univ Sci & Technol, Key Lab Pressure Syst & Safety, Minist Educ, Shanghai, Peoples R China

年份：2025

卷号：214

外文期刊名：INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING

收录：;EI(收录号：20245217567677);WOS:【SCI-EXPANDED(收录号:WOS:001393310700001)】；

基金：This work is supported by the National Natural Science Foundation of China [No. 52175138] .

语种：英文

外文关键词：Resonance; Modal analysis; Clamped-clamped pipes; Damage identification; Structural health monitoring (SHM)

摘要：The significant challenge in many structural health monitoring (SHM) approaches is the reliance on baseline data. The critical importance of early damage detection is acknowledged to prevent catastrophic failures. In this work, a novel baseline-free vibrational method for assessing corrosion damage in pipes is introduced. The concept of regional resonance pairs (RRP) is presented for the detection, classification, localization, and quantification of damage without the need for baseline modal characteristics. The method effectiveness is demonstrated through experimental validation with clamped-clamped boundary conditions across various damage scenarios. Corrosion impacts are successfully identified using the RRP approach, with frequency deviations of active components maintained within +/- 5 %. Its sensitivity is sufficient to detect damage corresponding to a cross-sectional area loss of at least 4 %. The potential of RRP is a robust, noise-resistant tool for baseline-free damage detection in pipe systems. This method offers significant advantages in operational environments where baseline data may be unavailable or unreliable.