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Mathematical Problems in Engineering
Volume 2014, Article ID 317954, 22 pages
Review Article

Application of Hilbert-Huang Transform in Structural Health Monitoring: A State-of-the-Art Review

1Key Laboratory of Roadway Bridge and Structural Engineering, Wuhan University of Technology, Wuhan 430070, China
2Guangdong Power Grid Corporation Co., Ltd., Guangzhou 510080, China

Received 26 January 2014; Accepted 28 February 2014; Published 2 June 2014

Academic Editor: Ting-Hua Yi

Copyright © 2014 Bo Chen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper reviews the development and application of HHT in the field of SHM in the last two decades. The challenges and future trends in the development of HHT based techniques for the SHM of civil engineering structures are also put forward. It also reviews the basic principle of the HHT method, which contains the extraction of the intrinsic mode function (IMF), mechanism of the EMD, and the features of HT; shows the application of HHT in the system identification, which contains the introduction of theoretical method, the identification of modal parameters, and the system identification on real structures; and discusses the structural damage detection using HHT based approaches, which includes the detection of common damage events, sudden damage events, and cracks and flaws.