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Health monitoring of cantilever rod using vibration test “theoretical and numerical study"

The aim of this study is to assess the numerical analysis by using a theoretical model for detecting cracks on cantilever rod. A theoretical model for the cantilever rod was based on the Euler– Bernoulli beam theory. The theoretical model was used to calculate the natural frequency for the uncracked...

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Main Authors: Jassim, Z.A., Fayyadh, M.M., Mustapha, F.
Format: Conference or Workshop Item
Language:English
Published: 2011
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.um.edu.my/12912/1/1143.pdf
http://eprints.um.edu.my/12912/
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spelling my.um.eprints.129122015-03-09T01:03:28Z http://eprints.um.edu.my/12912/ Health monitoring of cantilever rod using vibration test “theoretical and numerical study" Jassim, Z.A. Fayyadh, M.M. Mustapha, F. TA Engineering (General). Civil engineering (General) The aim of this study is to assess the numerical analysis by using a theoretical model for detecting cracks on cantilever rod. A theoretical model for the cantilever rod was based on the Euler– Bernoulli beam theory. The theoretical model was used to calculate the natural frequency for the uncracked rod, as well as for the cracked rod. The effect of the crack on the natural frequencies was inserted by using the second moment of inertia for the cracked cross section, where it influenced the natural frequency and led to decrease the stiffness of the cracked beam. The theoretical results showed that the reduction in natural frequencies (RFI) was a good indicator for detecting the damage magnitude. A finite element model for a cantilever solid rod was created. The Eigen analysis was conducted to determine the dynamic properties (natural frequency and mode shape). The crack detection was performed by monitoring the changes in the first four natural frequencies. It is hypothesized that as the natural frequency of a structure is directly corresponded to its stiffness, the monitoring of any changes exhibited in the natural frequency can lead to the detection in the change of the stiffness of the structure. The mass was assumed constant because the amount of lost due to crack was very less, hence it was neglected. The theoretical model and natural frequency’s results were in good agreement with numerical results. 2011-07 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.um.edu.my/12912/1/1143.pdf Jassim, Z.A. and Fayyadh, M.M. and Mustapha, F. (2011) Health monitoring of cantilever rod using vibration test “theoretical and numerical study". In: 17th International Congress on Sound and Vibration 2010, ICSV 2010, 18-22 July 2011, Cairo, Egypt.
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
language English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Jassim, Z.A.
Fayyadh, M.M.
Mustapha, F.
Health monitoring of cantilever rod using vibration test “theoretical and numerical study"
description The aim of this study is to assess the numerical analysis by using a theoretical model for detecting cracks on cantilever rod. A theoretical model for the cantilever rod was based on the Euler– Bernoulli beam theory. The theoretical model was used to calculate the natural frequency for the uncracked rod, as well as for the cracked rod. The effect of the crack on the natural frequencies was inserted by using the second moment of inertia for the cracked cross section, where it influenced the natural frequency and led to decrease the stiffness of the cracked beam. The theoretical results showed that the reduction in natural frequencies (RFI) was a good indicator for detecting the damage magnitude. A finite element model for a cantilever solid rod was created. The Eigen analysis was conducted to determine the dynamic properties (natural frequency and mode shape). The crack detection was performed by monitoring the changes in the first four natural frequencies. It is hypothesized that as the natural frequency of a structure is directly corresponded to its stiffness, the monitoring of any changes exhibited in the natural frequency can lead to the detection in the change of the stiffness of the structure. The mass was assumed constant because the amount of lost due to crack was very less, hence it was neglected. The theoretical model and natural frequency’s results were in good agreement with numerical results.
format Conference or Workshop Item
author Jassim, Z.A.
Fayyadh, M.M.
Mustapha, F.
author_facet Jassim, Z.A.
Fayyadh, M.M.
Mustapha, F.
author_sort Jassim, Z.A.
title Health monitoring of cantilever rod using vibration test “theoretical and numerical study"
title_short Health monitoring of cantilever rod using vibration test “theoretical and numerical study"
title_full Health monitoring of cantilever rod using vibration test “theoretical and numerical study"
title_fullStr Health monitoring of cantilever rod using vibration test “theoretical and numerical study"
title_full_unstemmed Health monitoring of cantilever rod using vibration test “theoretical and numerical study"
title_sort health monitoring of cantilever rod using vibration test “theoretical and numerical study"
publishDate 2011
url http://eprints.um.edu.my/12912/1/1143.pdf
http://eprints.um.edu.my/12912/
_version_ 1643689411061219328
score 13.211869

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