Time series-based damage detection and localization algorithm with application to the ASCE benchmark structure

KK Nair, AS Kiremidjian, KH Law - Journal of Sound and Vibration, 2006 - Elsevier
In this paper, a time series algorithm is presented for damage identification and localization.
The vibration signals obtained from sensors are modeled as autoregressive moving …

Time series based structural damage detection algorithm using Gaussian mixtures modeling

K Krishnan Nair, AS Kiremidjian - 2007 - asmedigitalcollection.asme.org
In this paper, a time series based detection algorithm is proposed utilizing the Gaussian Mixture
Models. The two critical aspects of damage diagnosis that are investigated are detection …

Use of wavelet-based damage-sensitive features for structural damage diagnosis using strong motion data

H Young Noh, K Krishnan Nair, DG Lignos… - Journal of Structural …, 2011 - ascelibrary.org
This paper introduces three wavelet-based damage-sensitive features (DSFs) extracted from
structural responses recorded during earthquakes to diagnose structural damage. Because …

Dynamic studies of railtrack sleepers in a track structure system

G Kumaran, D Menon, KK Nair - Journal of Sound and Vibration, 2003 - Elsevier
This paper discusses the dynamic response of a typical prestressed concrete railtrack sleeper
due to wheel–track interaction dynamics, involving wheel and rail imperfections, under …

Development of fragility functions as a damage classification/prediction method for steel moment‐resisting frames using a wavelet‐based damage sensitive feature

HY Noh, DG Lignos, KK Nair… - … & Structural Dynamics, 2012 - Wiley Online Library
Fragility functions are commonly used in performance‐based earthquake engineering for
predicting the damage state of a structure subjected to an earthquake. This process often …

Algorithms for time synchronization of wireless structural monitoring sensors

Y Lei, AS Kiremidjian, KK Nair… - … & structural dynamics, 2005 - Wiley Online Library
Dense networks of wireless structural health monitoring systems can effectively remove the
disadvantages associated with current wire‐based sparse sensing systems. However, …

[PDF][PDF] Fishes of the Satpura range, Hoshangabad district, central Provinces

SL Hora, KK Nair - Records of the Zoological Survey of India, 1941 - recordsofzsi.com
In 1937, one of ust, while referring to the distribution of Himalayan fishes, explained the
occurrence of similar forms in the Eastern Himalayas and the Assam Hills on the one hand and …

[PDF][PDF] Application of time series based damage detection algorithms to the benchmark experiment at the National Center for Research on Earthquake Engineering …

HY Noh, KK Nair, AS Kiremidjian, CH Loh - Smart Structures and Systems, 2009 - Citeseer
In this paper, the time series based damage detection algorithms developed by Nair, et al.(2006)
and Nair and Kiremidjian (2007) are applied to the benchmark experimental data from …

Limiting spectral distribution of a symmetrized auto-cross covariance matrix

B Jin, C Wang, ZD Bai, KK Nair, M Harding - 2014 - projecteuclid.org
This paper studies the limiting spectral distribution (LSD) of a symmetrized auto-cross
covariance matrix. The auto-cross covariance matrix is defined as $\mathbf{M}_{\tau}=\frac{1}{2T}\…

Evaluation of dynamic load on railtrack sleepers based on vehicle-track modeling and analysis

…, D Menon, K Krishnan Nair - International Journal of …, 2002 - World Scientific
The present study reports the results of a rigorous dynamic interaction analysis that accounts
for the vehicle-track characteristics and rail imperfections. In order to perform a rigorous …