Impact on bus superstructure due to rollover

Bus is a popular and common transport in the world. The safety of bus journey is a fundamental concern. The risk of injuries and fatalities is severe when the bus structure fails during a rollover accident. Adequate design and sufficient strength of the bus superstructure can reduce the number of in...

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Main Author: Ali, Md. Liakat
Format: Thesis
Language:English
Published: 2008
Subjects:
Online Access:http://eprints.utm.my/9537/1/MdLiakatAliMFKM2008.pdf
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author Ali, Md. Liakat
author_facet Ali, Md. Liakat
author_sort Ali, Md. Liakat
collection ePrints
description Bus is a popular and common transport in the world. The safety of bus journey is a fundamental concern. The risk of injuries and fatalities is severe when the bus structure fails during a rollover accident. Adequate design and sufficient strength of the bus superstructure can reduce the number of injuries and fatalities. This study examines the deformation response of a typical bus structure during a rollover test simulation. A simplified box structure was modeled using finite element analysis software and simulated in a rollover condition according to the requirements of UNECE Regulation 66. The same box model was fabricated to validate the results obtained from finite element analysis simulation. After successful validation of the box model simulation, a complete bus structure with forty four passengers’ capability was developed using finite element analysis software. The simulation of the bus was conducted using the same inputs used in box model simulation. Four simulations have been conducted to get the dimensions of different members of the superstructure of bus which is capable to protect rollover crash. The analysis suggested that, the failure of bus frame during rollover situation is basically dependent on the total mass of bus and on the strength of bus superstructure.
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spelling utm.eprints-95372018-06-29T21:50:52Z http://eprints.utm.my/9537/ Impact on bus superstructure due to rollover Ali, Md. Liakat TJ Mechanical engineering and machinery HE Transportation and Communications Bus is a popular and common transport in the world. The safety of bus journey is a fundamental concern. The risk of injuries and fatalities is severe when the bus structure fails during a rollover accident. Adequate design and sufficient strength of the bus superstructure can reduce the number of injuries and fatalities. This study examines the deformation response of a typical bus structure during a rollover test simulation. A simplified box structure was modeled using finite element analysis software and simulated in a rollover condition according to the requirements of UNECE Regulation 66. The same box model was fabricated to validate the results obtained from finite element analysis simulation. After successful validation of the box model simulation, a complete bus structure with forty four passengers’ capability was developed using finite element analysis software. The simulation of the bus was conducted using the same inputs used in box model simulation. Four simulations have been conducted to get the dimensions of different members of the superstructure of bus which is capable to protect rollover crash. The analysis suggested that, the failure of bus frame during rollover situation is basically dependent on the total mass of bus and on the strength of bus superstructure. 2008-11 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/9537/1/MdLiakatAliMFKM2008.pdf Ali, Md. Liakat (2008) Impact on bus superstructure due to rollover. Masters thesis, Universiti Teknologi Malaysia, Faculty of Mechanical Engineering.
spellingShingle TJ Mechanical engineering and machinery
HE Transportation and Communications
Ali, Md. Liakat
Impact on bus superstructure due to rollover
title Impact on bus superstructure due to rollover
title_full Impact on bus superstructure due to rollover
title_fullStr Impact on bus superstructure due to rollover
title_full_unstemmed Impact on bus superstructure due to rollover
title_short Impact on bus superstructure due to rollover
title_sort impact on bus superstructure due to rollover
topic TJ Mechanical engineering and machinery
HE Transportation and Communications
url http://eprints.utm.my/9537/1/MdLiakatAliMFKM2008.pdf
work_keys_str_mv AT alimdliakat impactonbussuperstructureduetorollover