Investigation of Heavy Vehicle Underrunning Guard Focusing for the Energy Absorbing Issue

Abstract:

The consequences of rear-end collision with a heavy vehicle could be significantly high risky, and the likelihood of the serious personal injury is notable high. The importance of an under-running guard is to increase the occupants survive and reduce the technical and personal injury. The lack of RUPD (Rear Underrun Protection Device) could involve fatal situations regarding to the occupants of the rear impacted personal car, therefore the application of this guard is not arbitrary option due to the strict national safety regulations. Analyzing the role of RUPD the distinction is made between two main functions. Due to the notable clearance between the floor height of the rear and the road, at the case of rear impact the cockpit of the personal car could be essentially abolished. The second expected function of RUPD to absorb impact energy as much as possible. The development a new RUPD or an improvement of recent one could be complex engineering task, since the absorbing ability and the proper strength requirement call for frequent contrast conditions during the construction designing. Taking into consideration of requirements of weight optimization the complexity of the designing could be even more complicated. One of the most ideal impact energy absorber could be the aluminium foam. Recent study investigates the ways to improve the amount of absorbed energy by the closed-cell aluminium foam using radial constrain during the compression. The second half of the study introduces a finite element analyses research related to the folding behavior of thin walled structures (crashbox) as energy absorber. By structures is analyzed and compared by the peak force at the moment of impact, the folding force fluctuation and the amount of absorbed energy.

• Periodical: Advances in Science and Technology (Volume 153)
• Pages: 79-87
• DOI: https://doi.org/10.4028/p-4aIQHk
• Online since: July 2024
• Authors: József Kertész*, József Menyhárt, Tünde Anna Kovács
• Keywords: Aluminium Foam Compression, Crashbox Improvement, Energy Absorbing, Transport Safety, Underrun Protection, Weight Optimization

References

[1] Cheng, Q., Liu, Z., Lin, Y., & Zhou, X. S. (2021). An s-shaped three-parameter (S3) traffic stream model with consistent car following relationship. Transportation Research Part B: Methodological, 153, 246-271.

DOI: 10.1016/j.trb.2021.09.004

[2] de Rivera, A. D., & Dick, C. T. (2021). Illustrating the implications of moving blocks on railway traffic flow behavior with fundamental diagrams. Transportation Research Part C: Emerging Technologies, 123, 102982.

DOI: 10.1016/j.trc.2021.102982

[3] Gidlewski, M., Jackowski, J., & Posuniak, P. (2022). Review and Analysis of Technical Designs of Rear Underrun Protective Devices (RUPDs) in Terms of Regulatory Compliance. Sensors, 22(7), 2645.

DOI: 10.3390/s22072645

[4] Kortağ, U., & Orhan, S. (2022). Design and Crashworthiness Analysis of Rear Underrun Protection Device. International Journal of Automotive Science And Technology, 6(4),412-417.

DOI: 10.30939/ijastech..1190059

[5] Thongtip, T., & Chanthanumataporn, S. (2021). Crashworthiness Investigation of Multi-stage Structures Designed for Underrun Protection Devices. Applied Science and Engineering Progress, 14(3), 328-337.

DOI: 10.14416/j.asep.2020.10.003

[6] Regulation No 58 of the Economic Commission for Europe of the United Nations (UN/ECE) — Uniform provisions concerning the approval of: I. Rear Underrun Protection Devices (RUPDs), II. Vehicles with regard to the Installation of an RUPD of an approved type, III. Vehicles with regard to their Rear Underrun Protection (RUP) - EUR-Lex - 42008X0830(01) - EN - EUR-Lex (europa.eu) (Available: 25.10.2023)

DOI: 10.4271/2016-01-8098

[7] Özcan, E. R., Özkan, S. S., & Mutlu, M. (2022). Design and Structural Analysis of Trailer Sliding Underrun Protection Device Complied with ECE R58. 03 Regulation. Avrupa Bilim ve Teknoloji Dergisi, (36), 262-268.

DOI: 10.31590/ejosat.1112435

[8] National Highway Traffic Safety Administration (NHTSA). Standard No. 223; Rear Impact Guards; Motor Vehicle Safety Regulations Government of Canada, Motor Vehicle Safety Regulations (C.R.C., c. 1038) (canada.ca) (Available: 25.10.2023)

[9] Zhu, G., Zhao, Z., Hu, P., Luo, G., Zhao, X., & Yu, Q. (2021). On energy-absorbing mechanisms and structural crashworthiness of laterally crushed thin-walled structures filled with aluminum foam and CFRP skeleton. Thin-Walled Structures, 160, 107390.

DOI: 10.1016/j.tws.2020.107390

[10] Rogala, M., Gajewski, J., & Gawdzińska, K. (2022). Crashworthiness analysis of thin-walled aluminum columns filled with aluminum–silicon carbide composite foam. Composite Structures, 299, 116102.

DOI: 10.1016/j.compstruct.2022.116102

[11] Ashby, M. F., Evans, T., Fleck, N. A., Hutchinson, J. W., Wadley, H. N. G., Gibson, L. J. 2000. Metal foams: a design guide. Elsevier.

DOI: 10.1016/b978-075067219-1/50001-5

[12] Asri, M. N. A. M., Abdullah, N. A. Z., & Sani, M. S. M. (2021). The effect of modal properties of crash box structures with trigger mechanisms towards the crashworthiness by using finite element analysis. Journal of Mechanical Engineering and Sciences, 15(3), 8459-8468.

DOI: 10.15282/jmes.15.3.2021.22.0666

[13] Nasution, A. Y., Rejab, M. R. M., Ma, Q., & Firmansyah, M. A. (2021, March). Design optimization of passenger SUV's crash box and bumper beam by using finite element method. In IOP Conference Series: Materials Science and Engineering (Vol. 1068, No. 1, p.012023). IOP Publishing.

DOI: 10.1088/1757-899x/1068/1/012023

[14] Wan, X., Wang, W., Liu, J., & Tong, T. (2014). Estimating the sample mean and standard deviation from the sample size, median, range and/or interquartile range. BMC medical research methodology, 14, 1-13.

DOI: 10.1186/1471-2288-14-135