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首页> 外文期刊>Structural engineering international >Modal Strain Energy-based Structural Damage Identification: A Review and Comparative Study
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Modal Strain Energy-based Structural Damage Identification: A Review and Comparative Study

机译：基于模态应变能量的结构损伤识别：评论和比较研究

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摘要

Thanks to its sensitive characteristics to damages, modal strain energy (MSE) has been widely utilized for structural damage identification. Various MSE-related techniques on structural damage identification are surveyed and classified as damage index (DI) method, modal strain energy change (MSEC) method, cross-modal strain energy (Cross-MSE) method, and other methods. Four typical MSE-related methods are selected and firstly overviewed. Then damage identification of 1-D beam and 3-D offshore platform structures, considering the issues of spatial incompleteness, noise contamination, etc., are examined systematically with numerical simulation and experimental data. The ability of these four methods to locate damage is compared. Finally, some generalized criteria on these methods for damage identification are concluded, and suggestions for future work are discussed. This brief review aims to help readers identify starting points for research in vibration-based damage identification and health monitoring, and guide researchers and practitioners in better implementing available MSE-based damage identification algorithms.
机译：由于其敏感性损坏，模态应变能量（MSE）已被广泛用于结构损害识别。调查和分类为损伤指数（DI）方法，模态应变能量（MSEC）方法，跨模态应变能（交叉MSE）方法等方法进行调查和分类各种MSE相关的技术。选择了四种典型的MSE相关方法并首先概述。然后通过数值模拟和实验数据系统地检查了考虑到空间不完整性，噪声污染等问题的1-D光束和3-D海上平台结构的损坏识别。比较这四种方法来定位损坏的能力。最后，结束了这些损害识别方法的一般标准，并讨论了对未来工作的建议。本简要审查旨在帮助读者确定振动造型识别和健康监测研究的起点，以及指导研究人员和从业者，更好地实施可用的基于MSE的损伤识别算法。

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