Vibration Characteristics of the Bearing Rotor Shaft

In this work, the vibrations in the rotor-bearing system are studied experimentally and theoretically using ANSYS Workbench 2020 R1 software to compute the natural frequencies and mode shapes. In the experimental part, the LABVIEW software was used to examine the signal of the frequency domain valu...

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Main Authors: Karrar Baher, Qasim A. Atiyah, Imad A. Abdulsahib
Format: Article
Language:English
Published: Al-Nahrain Journal for Engineering Sciences 2022-04-01
Series:مجلة النهرين للعلوم الهندسية
Subjects:
Online Access:https://nahje.com/index.php/main/article/view/943
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author Karrar Baher
Qasim A. Atiyah
Imad A. Abdulsahib
author_facet Karrar Baher
Qasim A. Atiyah
Imad A. Abdulsahib
author_sort Karrar Baher
collection DOAJ
description In this work, the vibrations in the rotor-bearing system are studied experimentally and theoretically using ANSYS Workbench 2020 R1 software to compute the natural frequencies and mode shapes. In the experimental part, the LABVIEW software was used to examine the signal of the frequency domain values obtained from the accelerometer sensors, based on Fast Fourier Transform (FFT) technology and dynamic response spectrum. in the theoretical part, the natural frequencies are determined based on the finite element method for analyzing the system and knowing its behavior and vibration response level. The results showed that the level of vibration becomes higher at high rotational speeds, and it becomes large when the distances between the bearings are large, according to the bearing position and type used in the system. in this work can be concluded, the system is usually affected by the dynamic response around it and is difficult to separate from it, and the vibrations in the system can be controlled by adding an external damping source, which gives the system more stable. A system operating at high speeds can give a large vibration and an unbalanced response.
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spelling doaj.art-5c3dea50103246489e1ac51c097ea58b2022-12-21T23:33:54ZengAl-Nahrain Journal for Engineering Sciencesمجلة النهرين للعلوم الهندسية2521-91542521-91622022-04-0125110.29194/NJES.25010049Vibration Characteristics of the Bearing Rotor ShaftKarrar Baher0Qasim A. Atiyah1Imad A. Abdulsahib2Mechanical department University of TechnologyMechanical Engineering Department, University of Technology, Baghdad, Iraq.Mechanical Engineering Department, University of Technology, Baghdad, Iraq. In this work, the vibrations in the rotor-bearing system are studied experimentally and theoretically using ANSYS Workbench 2020 R1 software to compute the natural frequencies and mode shapes. In the experimental part, the LABVIEW software was used to examine the signal of the frequency domain values obtained from the accelerometer sensors, based on Fast Fourier Transform (FFT) technology and dynamic response spectrum. in the theoretical part, the natural frequencies are determined based on the finite element method for analyzing the system and knowing its behavior and vibration response level. The results showed that the level of vibration becomes higher at high rotational speeds, and it becomes large when the distances between the bearings are large, according to the bearing position and type used in the system. in this work can be concluded, the system is usually affected by the dynamic response around it and is difficult to separate from it, and the vibrations in the system can be controlled by adding an external damping source, which gives the system more stable. A system operating at high speeds can give a large vibration and an unbalanced response. https://nahje.com/index.php/main/article/view/943VibrationsBall BearingFast Fourier Transform (FFT)Natural FrequencyRotor-Bearing SystemANSYS
spellingShingle Karrar Baher
Qasim A. Atiyah
Imad A. Abdulsahib
Vibration Characteristics of the Bearing Rotor Shaft
مجلة النهرين للعلوم الهندسية
Vibrations
Ball Bearing
Fast Fourier Transform (FFT)
Natural Frequency
Rotor-Bearing System
ANSYS
title Vibration Characteristics of the Bearing Rotor Shaft
title_full Vibration Characteristics of the Bearing Rotor Shaft
title_fullStr Vibration Characteristics of the Bearing Rotor Shaft
title_full_unstemmed Vibration Characteristics of the Bearing Rotor Shaft
title_short Vibration Characteristics of the Bearing Rotor Shaft
title_sort vibration characteristics of the bearing rotor shaft
topic Vibrations
Ball Bearing
Fast Fourier Transform (FFT)
Natural Frequency
Rotor-Bearing System
ANSYS
url https://nahje.com/index.php/main/article/view/943
work_keys_str_mv AT karrarbaher vibrationcharacteristicsofthebearingrotorshaft
AT qasimaatiyah vibrationcharacteristicsofthebearingrotorshaft
AT imadaabdulsahib vibrationcharacteristicsofthebearingrotorshaft