Finite element stress and vibration analysis of ball bearings

Ball bearings are widely used in rotary machineries. Bearings are usually subjected to loads from the shaft during operation. In this report, an attempt is made to carry out finite element analysis of a ball bearing subjected to radial loads from the shaft. A 2D sectional view of the ball bearing...

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Main Author: Cheong, Meng Wei
Other Authors: Sellakkutti Rajendran
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2022
Subjects:
Online Access:https://hdl.handle.net/10356/158762
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1587622023-03-04T20:14:48Z Finite element stress and vibration analysis of ball bearings Cheong, Meng Wei Sellakkutti Rajendran School of Mechanical and Aerospace Engineering MSRajendran@ntu.edu.sg Engineering::Mechanical engineering Ball bearings are widely used in rotary machineries. Bearings are usually subjected to loads from the shaft during operation. In this report, an attempt is made to carry out finite element analysis of a ball bearing subjected to radial loads from the shaft. A 2D sectional view of the ball bearing together with a shaft were modelled. The force and stress distributions in the ball elements are then analysed. ANSYS Mechanical APDL is used for the finite element analysis. Load-displacement characteristics in the ball elements are evaluated at varying displacement of the shaft. The natural frequencies and mode shapes of the ball bearing are also analysed. The load and stress analysis shows that majority of the load is shared by the ball elements in the upper half of the ball bearing when the radial load is upwards. The balls in the lower half do not carry any load. Observations from the von Mises stress analysis shows that the highest stress regions occur at the point contacts between the ball element and raceways as one would expect. Bachelor of Engineering (Mechanical Engineering) 2022-06-06T04:14:46Z 2022-06-06T04:14:46Z 2022 Final Year Project (FYP) Cheong, M. W. (2022). Finite element stress and vibration analysis of ball bearings. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/158762 https://hdl.handle.net/10356/158762 en B179 application/pdf Nanyang Technological University
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Mechanical engineering
spellingShingle Engineering::Mechanical engineering
Cheong, Meng Wei
Finite element stress and vibration analysis of ball bearings
description Ball bearings are widely used in rotary machineries. Bearings are usually subjected to loads from the shaft during operation. In this report, an attempt is made to carry out finite element analysis of a ball bearing subjected to radial loads from the shaft. A 2D sectional view of the ball bearing together with a shaft were modelled. The force and stress distributions in the ball elements are then analysed. ANSYS Mechanical APDL is used for the finite element analysis. Load-displacement characteristics in the ball elements are evaluated at varying displacement of the shaft. The natural frequencies and mode shapes of the ball bearing are also analysed. The load and stress analysis shows that majority of the load is shared by the ball elements in the upper half of the ball bearing when the radial load is upwards. The balls in the lower half do not carry any load. Observations from the von Mises stress analysis shows that the highest stress regions occur at the point contacts between the ball element and raceways as one would expect.
author2 Sellakkutti Rajendran
author_facet Sellakkutti Rajendran
Cheong, Meng Wei
format Final Year Project
author Cheong, Meng Wei
author_sort Cheong, Meng Wei
title Finite element stress and vibration analysis of ball bearings
title_short Finite element stress and vibration analysis of ball bearings
title_full Finite element stress and vibration analysis of ball bearings
title_fullStr Finite element stress and vibration analysis of ball bearings
title_full_unstemmed Finite element stress and vibration analysis of ball bearings
title_sort finite element stress and vibration analysis of ball bearings
publisher Nanyang Technological University
publishDate 2022
url https://hdl.handle.net/10356/158762
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