当前位置: X-MOL 学术Measurement › 论文详情
A Baseline-Free Damage Detection Method Using VBI Incomplete Measurement Data
Measurement ( IF 3.364 ) Pub Date : 2021-01-13 , DOI: 10.1016/j.measurement.2020.108957
Mohsen Mousavi; Damien Holloway; J.C. Olivier; Amir H. Gandomi

A novel baseline-free method for damage detection of vehicle-bridge interaction (VBI) systems is proposed. The proposed method is physics-based, in contrast to many prevailing approaches, which are purely data-based techniques. It uses incomplete measurement data by incorporating the static condensation transformation matrix into the equations to obtain the final formulas. However, the static condensation of the damaged beam is not known a priori. Therefore, it is shown analytically that the static condensation transformation matrix of the undamaged beam can be used instead of the one corresponding to the damaged beam. This has been confirmed through numerical simulations for different boundary conditions of the beam. Various factors are studied numerically in order to demonstrate the robustness of the proposed method, including road roughness, boundary conditions, variable moving mass velocity and measurement noise. The results demonstrate the capability of the proposed method in damage detection of beam-type structures subjected to a moving mass in the presence of 5% noise. It has also been shown that averaging the results obtained from noisy data collected through several repetitions of the experiment can improve the final prediction of the location and severity of damage.



中文翻译:

使用VBI不完整测量数据的无基线损伤检测方法

提出了一种新颖的无基线的车桥相互作用(VBI)系统损伤检测方法。与许多流行的纯基于数据的技术相比,该方法是基于物理学的。它通过将静态缩合变换矩阵合并到方程中以获得最终公式来使用不完整的测量数据。然而,先验未知受损光束的静态凝结。因此,分析地表明,可以使用未损坏的光束的静态冷凝变换矩阵来代替对应于损坏的光束的矩阵。通过对光束的不同边界条件的数值模拟已经证实了这一点。数值研究了各种因素,以证明所提出方法的鲁棒性,包括道路不平整度,边界条件,可变移动质量速度和测量噪声。结果证明了所提出的方法在具有5%噪声的情况下承受移动质量的梁型结构的损伤检测中的能力。还显示出,对通过几次重复实验收集的嘈杂数据获得的结果进行平均可以改善对损伤的位置和严重程度的最终预测。

更新日期:2021-01-13
全部期刊列表>>
微生物研究
亚洲大洋洲地球科学
NPJ欢迎投稿
自然科研论文编辑
ERIS期刊投稿
欢迎阅读创刊号
自然职场,为您触达千万科研人才
spring&清华大学出版社
城市可持续发展前沿研究专辑
Springer 纳米技术权威期刊征稿
全球视野覆盖
施普林格·自然新
chemistry
物理学研究前沿热点精选期刊推荐
自然职位线上招聘会
欢迎报名注册2020量子在线大会
化学领域亟待解决的问题
材料学研究精选新
GIANT
ACS ES&T Engineering
ACS ES&T Water
屿渡论文,编辑服务
阿拉丁试剂right
上海中医药大学
浙江大学
清华大学
南科大
北京理工大学
清华
隐藏1h前已浏览文章
课题组网站
新版X-MOL期刊搜索和高级搜索功能介绍
ACS材料视界
清华大学-1
武汉大学
浙江大学
天合科研
x-mol收录
试剂库存
down
wechat
bug