11 April 2006 Wireless monitoring system using LAN for crane
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Various monitoring sensors have been used for the monitoring and damage prediction of structures. Piezoelectric and optical fiber sensor that are required housing for the field applications are used widely. The voltage change of piezoelectric for the steel girder is used for damage prediction. The inspection and monitoring for safety of crane is not easy because it is located in high level and the operation should be stop for the inspection. The constant input load by moving the crane girder with constant speed was used instead of ambient vibration. In this test, wireless monitoring system using LAN is tried for the long distance measurement. The objective of this paper is to present the dynamic measurement results to identify the potential damage of steel beam using piezoelectric sensor. Cantilever beams, a simply supported beam with bolted splice, and actual crane girder have been chosen for the test. FFT method was used for the damage identification. This output-only dynamic test is likely applied to the top crane to monitor the damage.
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Kyung Jae Shin, Kyung Jae Shin, Yeol Choi, Yeol Choi, Won-Hwa Hong, Won-Hwa Hong, Wha-Jung Kim, Wha-Jung Kim, } "Wireless monitoring system using LAN for crane", Proc. SPIE 6174, Smart Structures and Materials 2006: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems, 61742R (11 April 2006); doi: 10.1117/12.658984; https://doi.org/10.1117/12.658984

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