Energy absorption of impact damper

The front and rear of the vehicle should be protected in such a manner that low speed collisions will only damage the vehicle slightly, or not at all. Kinetic energy due to the low speed collision could be as high as 1000 J. If this impact energy is not dissipated properly, it could damage the bumpe...

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Main Author:	Annamalai Gurunathan, Balamurugan
Format:	Thesis
Language:	English
Published:	2009
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://eprints.utm.my/id/eprint/6150/1/BalamuruganAnnamalaiGurunathanMFKM2009.pdf
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spelling	my-utm-ep.61502018-10-14T07:19:44Z Energy absorption of impact damper 2009-05 Annamalai Gurunathan, Balamurugan TJ Mechanical engineering and machinery The front and rear of the vehicle should be protected in such a manner that low speed collisions will only damage the vehicle slightly, or not at all. Kinetic energy due to the low speed collision could be as high as 1000 J. If this impact energy is not dissipated properly, it could damage the bumper and other components attached to it. In this project, circular tube was investigated to absorb the impact energy during low speed collision at 4 km/h. The thickness and length that gives hoop stress lower than yield strength of the material is selected. . Both analytical and numerical methods were used to find suitable thickness and length of the tube. Solid assembly model of the bumper, front cross member and circular tubes were developed. The bumper is simulated with impact force of 1333 N based on ECE/324 Regulation No.42. Both linear and non-linear simulation was carried out. Results show that circular tube exhibit good energy absorption behaviour. 2009-05 Thesis http://eprints.utm.my/id/eprint/6150/ http://eprints.utm.my/id/eprint/6150/1/BalamuruganAnnamalaiGurunathanMFKM2009.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:1268 masters Universiti Teknologi Malaysia, Faculty of Mechanical Engineering Faculty of Mechanical Engineering 1. United Nations Economic Commission for Europe (2007). Uniform Provisions Concerning the Approval of Vehicles with regards to their Front and Rear Protective Devices (Bumper, etc). ECE/324 Regulation No. 42. 2. Wallentowitz, H and Adam, H(1995).The Use of Energy Absorbing Reinforcements in Automotive Applications. Journal of Materials Processing Technology.31, 23-28. 3. Marc Robert Schultz (1998).Energy Absorption Capacity of Graphite-Epoxy Composite Tubes. Master of Science. Virginia Polytechnic Institute and . State University, Virginia 4. Hull, D.(1982).Energy Absorption of Composite Materials under Crash Conditions. Proceedings of the Fourth International Conference on Composite Materials. 25-28 October.861-870. 5. Farley, Gary L and Jones, Robert M.(1992).Crushing Characteristics of Continuous Fiber Reinforced Composite Tubes. Journal of Composite Materials. 26, 37-50. 6. Hull, D.(1991).A Unified Approach to Progressive Crushing of Fibre-Reinforced Composite Tubes. Composite Science and Technology.40, 377-421. 7. Davoodi, MM, Sapuan, SM and Yunus, R. (2008). Conceptual Design of a Polymer Composite Automotive Bumper Energy Absorber. Materials and Design. 29, 1447-1452. 8. Gupta, NK and Abbas, H.(2000). Lateral collapse of composite cylindrical tubes between flat platens. International Journal of Impact Engineering. 24, 329- 346. 9. Morris, E, Olabi, AG and Hashmi, MSJ.(2007). Lateral Crushing of Circular and Non-circular tube systems under Quasi Static conditions. Journal of Materials Processing Technology.191, 132-135.
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Annamalai Gurunathan, Balamurugan Energy absorption of impact damper
description	The front and rear of the vehicle should be protected in such a manner that low speed collisions will only damage the vehicle slightly, or not at all. Kinetic energy due to the low speed collision could be as high as 1000 J. If this impact energy is not dissipated properly, it could damage the bumper and other components attached to it. In this project, circular tube was investigated to absorb the impact energy during low speed collision at 4 km/h. The thickness and length that gives hoop stress lower than yield strength of the material is selected. . Both analytical and numerical methods were used to find suitable thickness and length of the tube. Solid assembly model of the bumper, front cross member and circular tubes were developed. The bumper is simulated with impact force of 1333 N based on ECE/324 Regulation No.42. Both linear and non-linear simulation was carried out. Results show that circular tube exhibit good energy absorption behaviour.
format	Thesis
qualification_level	Master's degree
author	Annamalai Gurunathan, Balamurugan
author_facet	Annamalai Gurunathan, Balamurugan
author_sort	Annamalai Gurunathan, Balamurugan
title	Energy absorption of impact damper
title_short	Energy absorption of impact damper
title_full	Energy absorption of impact damper
title_fullStr	Energy absorption of impact damper
title_full_unstemmed	Energy absorption of impact damper
title_sort	energy absorption of impact damper
granting_institution	Universiti Teknologi Malaysia, Faculty of Mechanical Engineering
granting_department	Faculty of Mechanical Engineering
publishDate	2009
url	http://eprints.utm.my/id/eprint/6150/1/BalamuruganAnnamalaiGurunathanMFKM2009.pdf
_version_	1747814635145265152

Energy absorption of impact damper

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