摘要(Abstract):
针对基于结构动静态响应的损伤识别方法研究不够深入、结构动态响应对噪声比较敏感,从而极大影响损伤识别效果的问题,提出一种基于结构响应向量(SRV)与支持向量机(SVM)的损伤识别方法,引入主成分分析(PCA)提高方法的抗噪性,并利用简支梁和实际桥梁模型验证方法的有效性。结果表明,基于结构动静态响应组成SRV的识别效果和计算效率更优,结合PCA可以提高方法的抗噪性,并且能在所需响应信息更精练的基础上对实际桥梁模型进行良好的损伤识别。
关键词(KeyWords): 损伤识别;结构响应向量;支持向量机;抗噪性能;简支钢梁;斜拉桥
基金项目(Foundation): 国家自然科学基金项目(11602087);; 广东省科技计划项目(2015B010131009)
作者(Author): 刘泽佳,金梦茹,周立成,涂成枫,汤立群,蒋震宇,刘逸平
DOI: 10.13349/j.cnki.jdxbn.2020.02.017
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