8 April 2016 Vibration-based damage detection algorithm for WTT structures
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Abstract
In this paper, the integrity of a wind turbine tower (WTT) structure is nondestructively estimated using its vibration responses. Firstly, a damage detection algorithm using changes in modal characteristics to predict damage locations and severities in structures is outlined. Secondly, a finite element (FE) model based on a real WTT structure is established by using a commercial software, Midas FEA. Thirdly, forced vibration tests are performed on the FE model of the WTT structure under various damage scenarios. The changes in modal parameters such as natural frequencies and mode shapes are examined for damage monitoring in the structure. Finally, the feasibility of the vibration-based damage detection method is numerically verified by predicting locations and severities of the damage in the FE model of the WTT structure.
Conference Presentation
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Tuan-Cuong Nguyen, Tuan-Cuong Nguyen, Tae-Hwan Kim, Tae-Hwan Kim, Sang-Hoon Choi, Sang-Hoon Choi, Joo-Young Ryu, Joo-Young Ryu, Jeong-Tae Kim, Jeong-Tae Kim, "Vibration-based damage detection algorithm for WTT structures", Proc. SPIE 9804, Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, and Civil Infrastructure 2016, 98040I (8 April 2016); doi: 10.1117/12.2219059; https://doi.org/10.1117/12.2219059
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