Effect of Mass on Bus Superstructure Strength Having Rollover Crash
Authors: Mustafa Bin Yusof, Mohammad Amirul Affiz Bin Afripin
Abstract:
Safety of bus journey is a fundamental concern. Risk of injuries and fatalities is severe when bus superstructure fails during rollover accident. Adequate design and sufficient strength of bus superstructure can reduce the number of injuries and fatalities. This paper deals with structural analysis of bus superstructure undergoes rollover event. Several value of mass will be varied in multiple simulations. The purpose of this work is to analyze structural response of bus superstructure in terms of deformation, stress and strain under several loading and constraining conditions. A complete bus superstructure with forty four passenger-s capability was developed using finite element analysis software. Simulations have been conducted to observe the effect of total mass of bus on the strength of superstructure. These simulations are following United Nation Economic Commission of Europe regulation 66 which focuses on strength of large vehicle superstructure. Validation process had been done using simple box model experiment and results obtained are comparing with simulation results. Inputs data from validation process had been used in full scale simulation. Analyses suggested that, the failure of bus superstructure during rollover situation is basically dependent on the total mass of bus and on the strength of bus superstructure.
Keywords: Bus, rollover, superstructure strength, UNECE regulation 66.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1057859
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[1] Kecman, D., and Tidbury, G.H., "Optimisation of a Bus Superstructure from the Rollover Safety Point of View. Tenth Intenational technical Conference on Experimental Safety Vehicles," Oxford, England, 1985.
[2] White, D.M., P.S.V. "Rollover Stability," Tenth International Technical Conference on Experimental Safety Vehicles, Oxford, England, 1985.
[3] Kumagai, K., Kabeshita, Y., Enomoto, H., and Shimojima, S., "An analysis Method for Rollover Strength of Bus Structures," Fourteenth International technical Conference on Enchanced Safety of Vehcles, Munich, Germany, 1994.
[4] Kecman, D., and Dutton, A.J., "Development and Testing of the University Coach safety Seat," Fifteenth International Technical Conference on the Enhanced Safety of Vehicles, Melbourn, Australia, 1996.
[5] Kecman, D., and Randell, N., "The Role of Calculation in the Development and Type Approval of Coach Structures for Rollover Safety," Fifteenth International Technical conference on the Enhanced Safety of Vehicles, Melbourn, Australia, 1996.
[6] Botto, P., Caillieret, M.C., Patel, A., Got, C., and Tarriere, C., "Passenger Protection in Sigle and Double-Decker Coaches in Tipping Over," Thirteenth International Technical conference on Experimental Safety Vehicles, Paris, France, 1991.
[7] Rasenack, W., Appel, H., Rau, H., and Rieta, C., "Best systems in Passenger Coaches," Fifteenth International Technical conference on the Enhanced Safety of Vehicles, Melbourne, Australia, 1996.
[8] Marine, Micky C., Thomas, Terry M. and Wirth, Jeffrey L., "Characteristics of On-Road Rollovers," SAE International Congress & Exposition(Vehicle Dynamics & Simulation), March 1999, Document No.1999-01-0122, Detroit, MI, USA.
[9] Roper, L. David, "Physics of Automobile Rollovers," 2001.
[10] Ferrer, I., and Miguel, J.L., "Assessment of the Use of Seat Belts in Busses Based on Recent Road Traffic Accidents in Spain," Seventeenth International Technical Conference on the enhanced Safety of Vehicles, Amsterdam, the Netherlands, 2001.
[11] Bish, Jack, Nash, Carl E., Paskin, Allan, H., "Terence and Friedman, Donald, an Evaluation of Production Vehicle Roof Strength," 2004 ASME International Mechanical Engineering Congress and Exposition, November 2004, IMECE2004-59885, California, USA.