Design of motorcycle safety helmet for children in Malaysia

The first part of the study is undertaken to investigate the need for a motorcycle safety helmet for children. From the field observations and interviews conducted, it was found that the current situation warrants the need for a motorcycle safety helmet for children to be developed. Motorcycle safet...

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Bibliographic Details
Main Author:	Ong, Wei Yang
Format:	Thesis
Language:	English English
Published:	2001
Subjects:	Motorcycling - Safety measures - Malaysia Motorcycle helmets Safety
Online Access:	http://psasir.upm.edu.my/id/eprint/10989/1/FK_2001_21%20IR.pdf
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id	my-upm-ir.10989
record_format	uketd_dc
spelling	my-upm-ir.109892024-04-04T01:27:30Z Design of motorcycle safety helmet for children in Malaysia 2001-07 Ong, Wei Yang The first part of the study is undertaken to investigate the need for a motorcycle safety helmet for children. From the field observations and interviews conducted, it was found that the current situation warrants the need for a motorcycle safety helmet for children to be developed. Motorcycle safety helmet, as an injury control device is used to curb the high fatality rate associated with head injuries among motorcycle users. In addition, a field study was conducted to investigate the design parameters of the helmet. A head size of 570mm in circumference was selected based on the size that fits the maximum number of users and the availability of the test head form sizes. It was found that a lighter helmet is generally preferred from the comfort viewpoint. The second part of the study involves the design of the motorcycle safety helmet for children. A finite element model of the children motorcycle safety helmet for impact test was developed using Hypermesh, a pre-processor. LS-DYNA, a finite element code was used to simulate the impact response of the helmet. The model was validated using an indirect inference approach. The results clearly indicate that the model correlated well with the experimental results from literatures. A simple parametric study was carried out to investigate the effect of varying thicknesses of the Acrynonitrile Butadiene Styrene (ABS) shell and the Expanded Polystyrene (EPS) foam. It was found that the typical thicknesses of the shell and foam provide the best compromise between the shock absorbing performance and the design constraints. None of the eight impacts simulated in accordance to the MSI 1996 type test resulted in an acceleration exceeding the permissible level of 300g. From the simulations, the helmet impact deformation mechanisms were discussed. It is recommended that future research to be carried out to further improve the design of the motorcycle safety helmet and to study the possible ventilation systems. In addition, it is suggested that a more stringent form of verification to be undertaken to validate the FE model of the helmet. Motorcycling - Safety measures - Malaysia Motorcycle helmets Safety 2001-07 Thesis http://psasir.upm.edu.my/id/eprint/10989/ http://psasir.upm.edu.my/id/eprint/10989/1/FK_2001_21%20IR.pdf text en public masters Universiti Putra Malaysia Motorcycling - Safety measures - Malaysia Motorcycle helmets Safety Faculty of Engineering Radin Sohadi, Radin Umar English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
advisor	Radin Sohadi, Radin Umar
topic	Motorcycling - Safety measures - Malaysia Motorcycle helmets Safety
spellingShingle	Motorcycling - Safety measures - Malaysia Motorcycle helmets Safety Ong, Wei Yang Design of motorcycle safety helmet for children in Malaysia
description	The first part of the study is undertaken to investigate the need for a motorcycle safety helmet for children. From the field observations and interviews conducted, it was found that the current situation warrants the need for a motorcycle safety helmet for children to be developed. Motorcycle safety helmet, as an injury control device is used to curb the high fatality rate associated with head injuries among motorcycle users. In addition, a field study was conducted to investigate the design parameters of the helmet. A head size of 570mm in circumference was selected based on the size that fits the maximum number of users and the availability of the test head form sizes. It was found that a lighter helmet is generally preferred from the comfort viewpoint. The second part of the study involves the design of the motorcycle safety helmet for children. A finite element model of the children motorcycle safety helmet for impact test was developed using Hypermesh, a pre-processor. LS-DYNA, a finite element code was used to simulate the impact response of the helmet. The model was validated using an indirect inference approach. The results clearly indicate that the model correlated well with the experimental results from literatures. A simple parametric study was carried out to investigate the effect of varying thicknesses of the Acrynonitrile Butadiene Styrene (ABS) shell and the Expanded Polystyrene (EPS) foam. It was found that the typical thicknesses of the shell and foam provide the best compromise between the shock absorbing performance and the design constraints. None of the eight impacts simulated in accordance to the MSI 1996 type test resulted in an acceleration exceeding the permissible level of 300g. From the simulations, the helmet impact deformation mechanisms were discussed. It is recommended that future research to be carried out to further improve the design of the motorcycle safety helmet and to study the possible ventilation systems. In addition, it is suggested that a more stringent form of verification to be undertaken to validate the FE model of the helmet.
format	Thesis
qualification_level	Master's degree
author	Ong, Wei Yang
author_facet	Ong, Wei Yang
author_sort	Ong, Wei Yang
title	Design of motorcycle safety helmet for children in Malaysia
title_short	Design of motorcycle safety helmet for children in Malaysia
title_full	Design of motorcycle safety helmet for children in Malaysia
title_fullStr	Design of motorcycle safety helmet for children in Malaysia
title_full_unstemmed	Design of motorcycle safety helmet for children in Malaysia
title_sort	design of motorcycle safety helmet for children in malaysia
granting_institution	Universiti Putra Malaysia
granting_department	Faculty of Engineering
publishDate	2001
url	http://psasir.upm.edu.my/id/eprint/10989/1/FK_2001_21%20IR.pdf
_version_	1804888604461236224

Design of motorcycle safety helmet for children in Malaysia

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