Finite element stress and vibration analysis of belt-pulley systems

In this FYP, a flat belt and pulley system is modelled in ANSYS Workbench. Static structural and modal analyses are carried out to find the stress distribution in the belt, as well as its natural frequencies and mode shapes under different load conditions. Firstly, a pretension is applied to the b...

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Main Author: Ching, Ngee Yeung
Other Authors: Sellakkutti Rajendran
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2023
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Online Access:https://hdl.handle.net/10356/167949
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1679492023-06-10T16:50:31Z Finite element stress and vibration analysis of belt-pulley systems Ching, Ngee Yeung Sellakkutti Rajendran School of Mechanical and Aerospace Engineering MSRajendran@ntu.edu.sg Engineering::Mechanical engineering In this FYP, a flat belt and pulley system is modelled in ANSYS Workbench. Static structural and modal analyses are carried out to find the stress distribution in the belt, as well as its natural frequencies and mode shapes under different load conditions. Firstly, a pretension is applied to the belt to analyse the stress distribution and natural frequencies of the belt. Verification of the stress results is carried out by comparing the belt tensile force distribution from Finite Element Analysis (FEA) with the force distribution derived from the Capstan equation. The prediction from the finite element model is found to follow said equation well. The coefficient of friction of the belt-pulley interface is varied to study the belt behaviour in the contact region. As the coefficient increases, the minimum belt tensile stress decreases and the maximum belt thickness increases. As the belt pretension increases, the belt natural frequencies increase as well. Secondly, a moment is applied onto the pulley to analyse the forces in a belt during operation under equilibrium conditions. The applied moment on the pulley is varied to study its effects on the belt stress distribution and its natural frequencies. As the applied moment is increased, the tight side of the belt experiences an increase in tensile stress and natural frequencies. Conversely, the slack side of the belt undergoes a reduction in tensile stress and natural frequencies. Finally, a transient analysis is carried out on the belt-pulley system to observe the “belt tracking” on crowned pulleys. It is found that during normal operation of the belt-pulley system, the belt exhibits tracking or centring behaviour when not in contact with the pulley. Bachelor of Engineering (Mechanical Engineering) 2023-06-05T08:50:55Z 2023-06-05T08:50:55Z 2023 Final Year Project (FYP) Ching, N. Y. (2023). Finite element stress and vibration analysis of belt-pulley systems. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/167949 https://hdl.handle.net/10356/167949 en C149 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
Ching, Ngee Yeung
Finite element stress and vibration analysis of belt-pulley systems
description In this FYP, a flat belt and pulley system is modelled in ANSYS Workbench. Static structural and modal analyses are carried out to find the stress distribution in the belt, as well as its natural frequencies and mode shapes under different load conditions. Firstly, a pretension is applied to the belt to analyse the stress distribution and natural frequencies of the belt. Verification of the stress results is carried out by comparing the belt tensile force distribution from Finite Element Analysis (FEA) with the force distribution derived from the Capstan equation. The prediction from the finite element model is found to follow said equation well. The coefficient of friction of the belt-pulley interface is varied to study the belt behaviour in the contact region. As the coefficient increases, the minimum belt tensile stress decreases and the maximum belt thickness increases. As the belt pretension increases, the belt natural frequencies increase as well. Secondly, a moment is applied onto the pulley to analyse the forces in a belt during operation under equilibrium conditions. The applied moment on the pulley is varied to study its effects on the belt stress distribution and its natural frequencies. As the applied moment is increased, the tight side of the belt experiences an increase in tensile stress and natural frequencies. Conversely, the slack side of the belt undergoes a reduction in tensile stress and natural frequencies. Finally, a transient analysis is carried out on the belt-pulley system to observe the “belt tracking” on crowned pulleys. It is found that during normal operation of the belt-pulley system, the belt exhibits tracking or centring behaviour when not in contact with the pulley.
author2 Sellakkutti Rajendran
author_facet Sellakkutti Rajendran
Ching, Ngee Yeung
format Final Year Project
author Ching, Ngee Yeung
author_sort Ching, Ngee Yeung
title Finite element stress and vibration analysis of belt-pulley systems
title_short Finite element stress and vibration analysis of belt-pulley systems
title_full Finite element stress and vibration analysis of belt-pulley systems
title_fullStr Finite element stress and vibration analysis of belt-pulley systems
title_full_unstemmed Finite element stress and vibration analysis of belt-pulley systems
title_sort finite element stress and vibration analysis of belt-pulley systems
publisher Nanyang Technological University
publishDate 2023
url https://hdl.handle.net/10356/167949
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