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Assessing the validity of torsional motion on dynamic analysis of rotor bearing system using finite element

The rotor-bearing system has been used extensively in machinery industry. The precise prediction of dynamic behaviour is vital for preventing any catastrophic occurrence from happening due to a vibration phenomenon. This work is based on Nelson’s shaft model that contains two translation components...

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Main Authors: Abdul Wahab, Abdul Malek, Rasid, Z. A., Makhtar, Ahmad Khushairy, Mahmud, Jamaluddin
Format: Conference or Workshop Item
Published: 2021
Subjects:
T Technology (General)
Online Access:http://eprints.utm.my/id/eprint/96097/
http://dx.doi.org/10.1007/978-981-16-0742-4_24
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spelling my.utm.960972022-07-03T08:07:02Z http://eprints.utm.my/id/eprint/96097/ Assessing the validity of torsional motion on dynamic analysis of rotor bearing system using finite element Abdul Wahab, Abdul Malek Rasid, Z. A. Makhtar, Ahmad Khushairy Mahmud, Jamaluddin T Technology (General) The rotor-bearing system has been used extensively in machinery industry. The precise prediction of dynamic behaviour is vital for preventing any catastrophic occurrence from happening due to a vibration phenomenon. This work is based on Nelson’s shaft model that contains two translation components and three rotary inertia components. Besides the bending and transverse shear deformation elements, additional torsional motions are included in the model. The objective is to investigate the effect of different level stiffness of the isotropic bearing and the torsional element towards the whirling phenomenon. The Campbell diagram obtained by applying Bolotin method to the finite element equation of motion is employed here to predict the whirling frequency. It was discovered that the torsional motion has different substantial effect on whirling speed for various levels of bearing stiffness. The highest impact of 8.57% difference can be seen for soft bearing that occurs in the 1st mode corresponds to forward frequency direction. 2021 Conference or Workshop Item PeerReviewed Abdul Wahab, Abdul Malek and Rasid, Z. A. and Makhtar, Ahmad Khushairy and Mahmud, Jamaluddin (2021) Assessing the validity of torsional motion on dynamic analysis of rotor bearing system using finite element. In: 3rd International Conference on Separation Technology, ICoST 2020, 15 - 16 August 2020, Virtual, Online. http://dx.doi.org/10.1007/978-981-16-0742-4_24
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic T Technology (General)
spellingShingle T Technology (General)
Abdul Wahab, Abdul Malek
Rasid, Z. A.
Makhtar, Ahmad Khushairy
Mahmud, Jamaluddin
Assessing the validity of torsional motion on dynamic analysis of rotor bearing system using finite element
description The rotor-bearing system has been used extensively in machinery industry. The precise prediction of dynamic behaviour is vital for preventing any catastrophic occurrence from happening due to a vibration phenomenon. This work is based on Nelson’s shaft model that contains two translation components and three rotary inertia components. Besides the bending and transverse shear deformation elements, additional torsional motions are included in the model. The objective is to investigate the effect of different level stiffness of the isotropic bearing and the torsional element towards the whirling phenomenon. The Campbell diagram obtained by applying Bolotin method to the finite element equation of motion is employed here to predict the whirling frequency. It was discovered that the torsional motion has different substantial effect on whirling speed for various levels of bearing stiffness. The highest impact of 8.57% difference can be seen for soft bearing that occurs in the 1st mode corresponds to forward frequency direction.
format Conference or Workshop Item
author Abdul Wahab, Abdul Malek
Rasid, Z. A.
Makhtar, Ahmad Khushairy
Mahmud, Jamaluddin
author_facet Abdul Wahab, Abdul Malek
Rasid, Z. A.
Makhtar, Ahmad Khushairy
Mahmud, Jamaluddin
author_sort Abdul Wahab, Abdul Malek
title Assessing the validity of torsional motion on dynamic analysis of rotor bearing system using finite element
title_short Assessing the validity of torsional motion on dynamic analysis of rotor bearing system using finite element
title_full Assessing the validity of torsional motion on dynamic analysis of rotor bearing system using finite element
title_fullStr Assessing the validity of torsional motion on dynamic analysis of rotor bearing system using finite element
title_full_unstemmed Assessing the validity of torsional motion on dynamic analysis of rotor bearing system using finite element
title_sort assessing the validity of torsional motion on dynamic analysis of rotor bearing system using finite element
publishDate 2021
url http://eprints.utm.my/id/eprint/96097/
http://dx.doi.org/10.1007/978-981-16-0742-4_24
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score 13.211869

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