Affiliations: [a] State Key Laboratory of Mechanics and Control of
Mechanical Structures, Nanjing University of Aeronautics and Astronautics,
Nanjing, Jiangsu, China | [b] Department of Mechanical Engineering, Chiba
University, Inage-ku, Chiba, Japan
Correspondence:
[*]
Corresponding author: Hongli Ji, State Key Laboratory of
Mechanics and Control of Mechanical Structures, Nanjing University of
Aeronautics and Astronautics, Nanjing, Jiangsu, China. Tel.: +86 25 848 911 23;
E-mail: jihongli@nuaa.edu.cn
Abstract: This study presents a novel imaging method in passive sensing
structural health monitoring (SHM), for locating impact damage in real-time on
a plate-like structure. So far, many imaging methods have already been applied
in active sensing SHM to locate the damages. However, seldom of the imaging
methods can be directly used to locate the impact in passive sensing SHM. In
order to avoid solving the hyperstatic hyperbolic equations and generate an
informative image for locating the impact damage, the proposed method combines
the imaging method with probability calculation. Moreover, to demonstrate the
feasibility of the proposed method, the experimental results are presented and
analyzed. From the results, the proposed method shows an interesting phenomenon
that the accuracy of the impact localization depends on the impact position.
Finally, a detailed analysis of the method accuracy is discussed.
Keywords: Structural health monitoring, impact localization, imaging method
