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发布时间：2020-07-06

论文类型：期刊论文

发表时间：2020-04-01

发表刊物：APPLIED SCIENCES-BASEL

收录刊物：SCIE

卷号：10

期号：7

关键字：structural health monitoring; damage identification; liquid-solid coupling; adding mass; sensitivity

摘要：Damage identification for liquid-solid coupling structures remains a challenging topic due to the influence of liquid and the limitation of experimental conditions. Therefore, the adding mass method for damage identification is employed in this study. Adding mass to structures is an effective method for damage identification, as it can increase not only the experimental data but also the sensitivity of experimental modes to local damage. First, the fundamental theory of the adding mass method for damage identification is introduced. After that, the method of equating the liquid to the attached mass is proposed by considering the liquid-solid coupling. Finally, the effectiveness and reliability of damage identification, based on adding mass for liquid-solid coupling structures, are verified through experiments of a submerged cantilever beam and liquid storage tank.