A review of output-only structural mode identification literature employing blind source separation methods

A Sadhu, S Narasimhan, J Antoni - Mechanical Systems and Signal …, 2017 - Elsevier
Output-only modal identification has seen significant activity in recent years, especially in
large-scale structures where controlled input force generation is often difficult to achieve …

First-order eigen-perturbation techniques for real-time damage detection of vibrating systems: Theory and applications

B Bhowmik, T Tripura, B Hazra… - Applied …, 2019 - asmedigitalcollection.asme.org
This manuscript provides a detailed synopsis of the contemporary advancements in the
nascent area of real-time structural damage detection for vibrating systems. The paper …

Real time structural modal identification using recursive canonical correlation analysis and application towards online structural damage detection

B Bhowmik, T Tripura, B Hazra, V Pakrashi - Journal of Sound and Vibration, 2020 - Elsevier
A novel reference free approach for identifying structural modal parameters using recursive
canonical correlation analysis (RCCA) is proposed in this paper. Using first order eigen …

Blind identification of damage in time-varying systems using independent component analysis with wavelet transform

Y Yang, S Nagarajaiah - mechanical systems and signal processing, 2014 - Elsevier
This paper proposes a novel output-only damage identification method based on the
unsupervised blind source separation (BSS) technique termed independent component …

Time-frequency blind source separation using independent component analysis for output-only modal identification of highly damped structures

Y Yang, S Nagarajaiah - Journal of Structural Engineering, 2013 - ascelibrary.org
Output-only algorithms are needed for modal identification when only structural responses
are available. The recent years have witnessed the fast development of blind source …

Real time damage detection using recursive principal components and time varying auto-regressive modeling

M Krishnan, B Bhowmik, B Hazra, V Pakrashi - Mechanical Systems and …, 2018 - Elsevier
In this paper, a novel baseline free approach for continuous online damage detection of
multi degree of freedom vibrating structures using Recursive Principal Component Analysis …

Hybrid time‐frequency blind source separation towards ambient system identification of structures

B Hazra, A Sadhu, AJ Roffel… - Computer‐Aided Civil …, 2012 - Wiley Online Library
Ambient system identification in noisy environments, in the presence of low‐energy modes
or closely‐spaced modes, is a challenging task. Conventional blind source separation …

Real-time unified single-and multi-channel structural damage detection using recursive singular spectrum analysis

B Bhowmik, M Krishnan, B Hazra… - Structural Health …, 2019 - journals.sagepub.com
A novel baseline-free approach for continuous online damage detection of multidegree of
freedom vibrating structures using recursive singular spectral analysis in conjunction with …

Response‐only modal identification of structures using limited sensors

F Abazarsa, SF Ghahari, F Nateghi… - Structural Control and …, 2013 - Wiley Online Library
Herein, we propose a method based on the existing second‐order blind identification of
underdetermined mixtures technique for identifying the modal characteristics—namely …

Decentralized modal identification of structures using parallel factor decomposition and sparse blind source separation

A Sadhu, B Hazra, S Narasimhan - Mechanical Systems and Signal …, 2013 - Elsevier
In this paper, a novel decentralized modal identification method is proposed utilizing the
concepts of sparse blind source separation (BSS) and parallel factor decomposition. Unlike …