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Proceedings Paper

Vibration-based damage detection algorithm for WTT structures
Author(s): Tuan-Cuong Nguyen; Tae-Hwan Kim; Sang-Hoon Choi; Joo-Young Ryu; Jeong-Tae Kim
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Paper 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.

Paper Details

Date Published: 8 April 2016
PDF: 8 pages
Proc. SPIE 9804, Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, and Civil Infrastructure 2016, 98040I (8 April 2016); doi: 10.1117/12.2219059
Show Author Affiliations
Tuan-Cuong Nguyen, Pukyong National Univ. (Korea, Republic of)
Tae-Hwan Kim, Pukyong National Univ. (Korea, Republic of)
Sang-Hoon Choi, Pukyong National Univ. (Korea, Republic of)
Joo-Young Ryu, Pukyong National Univ. (Korea, Republic of)
Jeong-Tae Kim, Pukyong National Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 9804:
Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, and Civil Infrastructure 2016
Tzuyang Yu; Andrew L. Gyekenyesi; Peter J. Shull; H. Felix Wu, Editor(s)

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