MACHINE LEARNING APPROACHES FOR BRIDGE STRUCTURAL DAMAGE DETECTION AND LOCALIZATION
Most of the bridge structure monitoring systems are done by manual data processing. Monitoring is carried out only for a certain period, some of which are for a short period so the historical data is not properly collected. In addition, there is no early warning system to notify indications of da...
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id-itb.:572342021-07-30T14:41:29ZMACHINE LEARNING APPROACHES FOR BRIDGE STRUCTURAL DAMAGE DETECTION AND LOCALIZATION Aulia Akbar Kustiana, Willy Indonesia Theses Damage detection and localization, dominant frequencies, magnitude, support vector machine, radial basis function kernel INSTITUT TEKNOLOGI BANDUNG https://digilib.itb.ac.id/gdl/view/57234 Most of the bridge structure monitoring systems are done by manual data processing. Monitoring is carried out only for a certain period, some of which are for a short period so the historical data is not properly collected. In addition, there is no early warning system to notify indications of damage. To provide information on the condition of the bridge, this study improves the existing system by utilizing certain features to detect damage and localization using a machine learning approach. The proposed system utilizes the vibrations obtained by the accelerometer-based wireless sensor nodes. The bridge acceleration data collected by the accelerometer wireless sensor node is transformed using the Fast Fourier Transform (FFT) to obtain the dominant frequencies and the appropriate magnitude as a machine learning feature. In this study, comparisons and selection of machine learning methods are also carried out to determine the most suitable method for detecting and localizing damage to bridges. The observed machine learning method is Multilayer Perceptron (MLP) classification method with the Adam optimizer and gradient descent, and the Support Vector Machine (SVM) classification method with a linear kernel and Radial Basis Function (RBF). The results were successfully tested in a bridge model, where the SVM method with the RBF kernel had the best performance with 97% accuracy and 96% precision, 97% recall rate, and 96% f1-score in terms of classifying and detecting damage and location detection. text |
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Most of the bridge structure monitoring systems are done by manual data
processing. Monitoring is carried out only for a certain period, some of which are
for a short period so the historical data is not properly collected. In addition, there
is no early warning system to notify indications of damage. To provide information
on the condition of the bridge, this study improves the existing system by utilizing
certain features to detect damage and localization using a machine learning
approach. The proposed system utilizes the vibrations obtained by the
accelerometer-based wireless sensor nodes. The bridge acceleration data collected
by the accelerometer wireless sensor node is transformed using the Fast Fourier
Transform (FFT) to obtain the dominant frequencies and the appropriate
magnitude as a machine learning feature. In this study, comparisons and selection
of machine learning methods are also carried out to determine the most suitable
method for detecting and localizing damage to bridges. The observed machine
learning method is Multilayer Perceptron (MLP) classification method with the
Adam optimizer and gradient descent, and the Support Vector Machine (SVM)
classification method with a linear kernel and Radial Basis Function (RBF). The
results were successfully tested in a bridge model, where the SVM method with the
RBF kernel had the best performance with 97% accuracy and 96% precision, 97%
recall rate, and 96% f1-score in terms of classifying and detecting damage and
location detection.
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format |
Theses |
author |
Aulia Akbar Kustiana, Willy |
spellingShingle |
Aulia Akbar Kustiana, Willy MACHINE LEARNING APPROACHES FOR BRIDGE STRUCTURAL DAMAGE DETECTION AND LOCALIZATION |
author_facet |
Aulia Akbar Kustiana, Willy |
author_sort |
Aulia Akbar Kustiana, Willy |
title |
MACHINE LEARNING APPROACHES FOR BRIDGE STRUCTURAL DAMAGE DETECTION AND LOCALIZATION |
title_short |
MACHINE LEARNING APPROACHES FOR BRIDGE STRUCTURAL DAMAGE DETECTION AND LOCALIZATION |
title_full |
MACHINE LEARNING APPROACHES FOR BRIDGE STRUCTURAL DAMAGE DETECTION AND LOCALIZATION |
title_fullStr |
MACHINE LEARNING APPROACHES FOR BRIDGE STRUCTURAL DAMAGE DETECTION AND LOCALIZATION |
title_full_unstemmed |
MACHINE LEARNING APPROACHES FOR BRIDGE STRUCTURAL DAMAGE DETECTION AND LOCALIZATION |
title_sort |
machine learning approaches for bridge structural damage detection and localization |
url |
https://digilib.itb.ac.id/gdl/view/57234 |
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