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Journal ArticleDOI

Data-driven damage identification technique for steel truss railroad bridges utilizing principal component analysis of strain response

Riasat Azim, +1 more
- 09 Jul 2020 - 
- Vol. 17, Iss: 8, pp 1-17
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TLDR
The proposed damage detection framework for truss railway bridges based on operational strain responses could identify, locate and relatively assess the severity of the damage induced by stiffness change in instrumented truss elements.
Abstract
Railway bridges are a critical part of the railway infrastructure system and the majority of these bridges are approaching their expected design lifespan. These bridges need to be maintained effect...

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Citations
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Journal ArticleDOI

State-of-the-Art Review on Advancements of Data Mining in Structural Health Monitoring

TL;DR: In this article , a detailed review of data mining techniques for structural health monitoring (SHM) applications is presented, where a brief background, models, functions, and classification of DM techniques are presented.
Journal ArticleDOI

Bayesian Support Vector Regression for Reliability-Based Design Optimization

TL;DR: Solving reliability-based design optimization (RBDO) by combining surrogate models is a powerful tool to deal with the output variation induced by uncertainties during actual engineering design.
Journal ArticleDOI

A review of ultrasonic sensing and machine learning methods to monitor industrial processes.

TL;DR: In this article , the authors present a review of machine learning techniques in combination with ultrasonic measurements for in-line and on-line monitoring of industrial processes and other similar applications. But, their implementation requires expertise to extract and select appropriate features from the sensor measurements as model inputs, and find a suitable set of model hyperparameters.

Damage detection of railway bridges using operational vibration data: theory and experimental verifications

TL;DR: An experimental investigation on a vibration-based damage identification framework for a steel girder type and a truss bridge based on acceleration responses to operational loading using sensor clustering-based time-series analysis of the operational acceleration response of the bridge to the passage of a moving vehicle.
Journal ArticleDOI

The WASPAS and AHP optimization methods applied on vibro-diagnostic models for rotational machines

TL;DR: In this article, two decision-making methods were used for finding optimal vibro-diagnostic model (VDM) for rotational machines, i.e., weighted aggregated sum product assessment and analytic hierarchy process.
References
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ReportDOI

Damage identification and health monitoring of structural and mechanical systems from changes in their vibration characteristics: A literature review

TL;DR: A review of the technical literature concerning the detection, location, and characterization of structural damage via techniques that examine changes in measured structural vibration response is presented in this article, where the authors categorize the methods according to required measured data and analysis technique.
Journal ArticleDOI

Damage detection of truss bridge joints using Artificial Neural Networks

TL;DR: A method for estimating the damage intensities of joints for truss bridge structures using a back-propagation based neural network and the natural frequencies and mode shapes were used as input parameters for damage identification.
Journal ArticleDOI

Vibration based health monitoring for a lightweight truss structure: experimental assessment of several statistical time series methods

TL;DR: In this article, an experimental assessment of several vibration based statistical time series methods for Structural Health Monitoring (SHM) is presented via their application to a lightweight aluminum truss structure.
Journal ArticleDOI

Development of Distributed Long-gage Fiber Optic Sensing System for Structural Health Monitoring

TL;DR: In this paper, a typical distributed fiber optic sensing system is developed by extending the gage length of fiber Bragg grating (FBG) and then arranging the long-gage FBG sensors in series.
Journal ArticleDOI

Theoretical and experimental study of modal strain analysis

TL;DR: In this article, the relationship between the strain mode and the displacement mode for vibrating elastic structures is derived based on the idea that when a structure is subjected to dynamic loading, its strain response can be expressed by the superposition of contributions from the natural strain modes.
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