Vibration investigation for telecom structures with smartphone camera: case studies
2021; Springer Science+Business Media; Volume: 11; Issue: 3 Linguagem: Inglês
10.1007/s13349-021-00478-9
ISSN2190-5479
AutoresYing Wang, James Brownjohn, J.A. Jiménez Capilla, Kaoshan Dai, Wensheng Lu, Ki‐Young Koo,
Tópico(s)Structural Engineering and Vibration Analysis
ResumoAbstract Telecom structures such as high guyed masts are tall and flexible, so that not only the main structure but also the components (i.e., guy cable and antenna) suffer from vibrations induced by wind or earthquakes. The installation of contact inertial accelerometers for high guyed mast cables or antenna can be logistically challenging and the original vibration state may be influenced by these sensors. With convenient implementation and acceptable accuracy, computer vision technologies have been applied for vibration tests both in labs and field. In this paper, videos taken with smartphone cameras are processed to extract guy cable and antenna vibration information for telecom structures and, as a result, providing an efficient cost-effective method for vibration investigation of this type of structure. The video processing method can also be used in similar cases for other structures.
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