土木工程与管理学报2025，Vol.42Issue(2)：9-16,8.DOI:10.13579/j.cnki.2095-0985.2025.20240140
基于等效机械阻抗比的橡胶板损伤识别
Damage Detection of Rubber Plate Based on the Ratio of Effective Mechanical Impedance
摘要
Abstract
The electromechanical impedance method uses piezoelectric ceramics(PZT)sensors for structural health monitoring,often requiring a reasonable arrangement of multiple sensors.To overcome the interference of the disparities in the bonding layer and sensor parameters on damage identification results,this study proposed a novel damage-sensitive factor,namely the ratio of effective mechanical impedance(REMI).Firstly,the principal performance parameters were extracted from the low-frequency admittance signal of the free PZT;then,the REMI was developed by combining the aforementioned PZT parameters and admittance signals,the root mean square deviation was utilized as the index for quantifying damage;next,the arc positioning method was employed to provide a visual representation of the damage location;finally,the technique was employed in an experimental study to detect crack damage in rubber plates.The results demonstrate that REMI are more sensitive than the raw admittance signals in identifying the location of cracks in rubber plates and assessing the se-verity of damage,providing an effective approach for the comprehensive analysis of multi-sensor data based on PZT.关键词
压电阻抗/损伤识别/等效机械阻抗比/橡胶板/损伤成像Key words
electromechanical impedance/damage detection/the ratio of effective mechanical im-pedance/rubber plate/damage imaging分类
土木建筑引用本文复制引用
张莹,朱宏平,苏前威,翁顺..基于等效机械阻抗比的橡胶板损伤识别[J].土木工程与管理学报,2025,42(2):9-16,8.基金项目
国家自然科学基金(52078233) （52078233）
