Vibration analysis of a beam structure attached with two dynamic vibration absorbers
A fixed end beam is a structural element supported at both sides which carries load primarily in flexure that may experience vibration as it does carry vertical loads and gravitational forces. Its exposure to vibration can lead to excessive deflections and failure of to the structure. The aim o...
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2014
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my-uthm-ep.16102021-10-03T08:10:25Z Vibration analysis of a beam structure attached with two dynamic vibration absorbers 2014-09 Jaini, Norhaslina TA Engineering (General). Civil engineering (General) TA349-359 Mechanics of engineering. Applied mechanics A fixed end beam is a structural element supported at both sides which carries load primarily in flexure that may experience vibration as it does carry vertical loads and gravitational forces. Its exposure to vibration can lead to excessive deflections and failure of to the structure. The aim of this research is to develop the application of dynamic vibration absorber on a fixed end beam structure. A classical mathematical model based on dynamic vibration absorber theory is improved by an analytical derivation until two degree of freedoms. The theoretical model is verified by experimental works. In experimental, two vibration absorbers was fabricated to be installed to the beam in four different conditions; and subjected to a force vibration frequency loading using an exciter. The resonance frequencies of interest were 11.23Hz and 35.45Hz. The vibration level that occurred on the beam is measured by comparing the effect of absorber presence to see the reduction in its amplitudes. Based on the experimental and theoretical analysis, both shows reduction in the beam amplitudes. From those results can be concluded that the dynamic vibration absorber has an ability to reduce and suppresses the beam vibration whereas the third condition has been chosen as the best arrangement where the persistent reduction results recorded 95 and 99 percents reduction of first and second DVA respectively. The knowledge gained from this research can be used to minimize the vibration amplitude of a structures and machines, increasing their life-span simultaneously. The other benefit comes from this research in specific or potential application aspect is it could control vibration in building or bridge structure and airplane wing flutter control. 2014-09 Thesis http://eprints.uthm.edu.my/1610/ http://eprints.uthm.edu.my/1610/1/24p%20NORHASLINA%20JAINI.pdf text en public http://eprints.uthm.edu.my/1610/2/NORHASLINA%20JAINI%20COPYRIGHT%20DECLARATION.pdf text en validuser http://eprints.uthm.edu.my/1610/3/NORHASLINA%20JAINI%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Malaysia Fakulti Kejuruteraan Mekanikal dan Pembuatan |
| institution |
Universiti Tun Hussein Onn Malaysia |
| collection |
UTHM Institutional Repository |
| language |
English English English |
| topic |
TA Engineering (General) Civil engineering (General) TA Engineering (General) Civil engineering (General) |
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TA Engineering (General) Civil engineering (General) TA Engineering (General) Civil engineering (General) Jaini, Norhaslina Vibration analysis of a beam structure attached with two dynamic vibration absorbers |
| description |
A fixed end beam is a structural element supported at both sides which carries load
primarily in flexure that may experience vibration as it does carry vertical loads and
gravitational forces. Its exposure to vibration can lead to excessive deflections and
failure of to the structure. The aim of this research is to develop the application of
dynamic vibration absorber on a fixed end beam structure. A classical mathematical
model based on dynamic vibration absorber theory is improved by an analytical
derivation until two degree of freedoms. The theoretical model is verified by
experimental works. In experimental, two vibration absorbers was fabricated to be
installed to the beam in four different conditions; and subjected to a force vibration
frequency loading using an exciter. The resonance frequencies of interest were
11.23Hz and 35.45Hz. The vibration level that occurred on the beam is measured
by comparing the effect of absorber presence to see the reduction in its amplitudes.
Based on the experimental and theoretical analysis, both shows reduction in the
beam amplitudes. From those results can be concluded that the dynamic vibration
absorber has an ability to reduce and suppresses the beam vibration whereas the third
condition has been chosen as the best arrangement where the persistent reduction
results recorded 95 and 99 percents reduction of first and second DVA respectively.
The knowledge gained from this research can be used to minimize the vibration
amplitude of a structures and machines, increasing their life-span simultaneously.
The other benefit comes from this research in specific or potential application aspect
is it could control vibration in building or bridge structure and airplane wing flutter
control. |
| format |
Thesis |
| qualification_name |
Master of Philosophy (M.Phil.) |
| qualification_level |
Master's degree |
| author |
Jaini, Norhaslina |
| author_facet |
Jaini, Norhaslina |
| author_sort |
Jaini, Norhaslina |
| title |
Vibration analysis of a beam structure attached with two dynamic vibration absorbers |
| title_short |
Vibration analysis of a beam structure attached with two dynamic vibration absorbers |
| title_full |
Vibration analysis of a beam structure attached with two dynamic vibration absorbers |
| title_fullStr |
Vibration analysis of a beam structure attached with two dynamic vibration absorbers |
| title_full_unstemmed |
Vibration analysis of a beam structure attached with two dynamic vibration absorbers |
| title_sort |
vibration analysis of a beam structure attached with two dynamic vibration absorbers |
| granting_institution |
Universiti Tun Hussein Malaysia |
| granting_department |
Fakulti Kejuruteraan Mekanikal dan Pembuatan |
| publishDate |
2014 |
| url |
http://eprints.uthm.edu.my/1610/1/24p%20NORHASLINA%20JAINI.pdf http://eprints.uthm.edu.my/1610/2/NORHASLINA%20JAINI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1610/3/NORHASLINA%20JAINI%20WATERMARK.pdf |
| _version_ |
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