Computer modelling of energy absorbing capability of bus superstructure for rollover safety

• Autorzy: Nurhadi I. , Zain R. , Mihradi S. , Soe Oo K.
• Języki publikacji: EN

Abstrakty

EN

This paper describes further investigations that have been carried out to make the proposed procedure [5] becomes more reliable to be practically applied as a requirement in bus type approval. One important aspect highlighted in this paper is an effort to improve the accuracy of the FEA model by taking into account detailed construction of bus superstructure. It worth to note that, based on survey carried out on several bus manufacturers, the detailed construction may vary from manufacturer to manufacturer. As a case study, a bus superstructure from a prominent manufacturer was chosen as a sample. Energy absorbing capacity of a bus superstructure section consisting of four bays including rear entrance door, emergency door and rear end was investigated through elastic-plastic finite element model. Incremental quasy static load according to ECE R66 was applied, subsequently to the right and left cantrail to obtain load deflection curve. Then the energy absorbing capacity of the structure when residual space limit was reached was evaluated through derived energy deflection curve. Essential components of the bus superstructure governing its energy absorbing capacity will be discussed. Modeling strategy in dealing with elastic-plastic analysis for such a rather complex structure is also highlighted.

Słowa kluczowe

EN

ECE R66; bus superstructure; rollover test; residual space; FEA; quasi-static incremental loading; elastic-plastic

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2011
• Tom: Vol. 18, No. 2
• Strony: 331--338
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Nurhadi I.

autor

Zain R.

autor

Mihradi S.

autor

Soe Oo K.

• Faculty of Mechanical and Aeronautical Engineering Institut Teknologi Bandung 10 Ganesa St., Bandung, Indonesia tel.: [phone], Fax: [phone],

Bibliografia

• [1] Gorse, K. T., Gisele, S., Analysis of the Superstructure of Designed Bus in Accordance with Regulation ECE R 66, G. U. Journal of Science, 2009.
• [2] Elitok, K., Dr. Guler, M. A., Bayram, B., Dr.-Ing. Stelzmann, U., An Investigation on the Rollover Crashworthiness of an Intercity Coach, Influence of Seat Structure and Passenger Weight, 9th International LS-DYNA User Conference.
• [3] Kyaw, S. O., Elastic Plastic Finite Element Analysis to Investigate Energy Absorbing Capacity of Designed Bus Superstructure in Rollover Test, Master Thesis, Department of Mechanical Engineering, Institut Teknologi Bandung, Indonesia 2011.
• [4] Mercedez Benz, Instruction Manual as Guidelines for The Manufacture and Mounting of Bodies on Mercedes Benz Chassis - Body/Equipment Mounting Directives.
• [5] Nurhadi, I., Zain, R., Prabowo, H., Development of Computer Based Procedure for Quantitative Evaluation of Bus Superstructure in Type Approval, Journal of KONES, Vol. 17, No. 2, pp. 171-372, 2010, Warsaw, Poland 2010.
• [6] UN ECE R66 (Regulation No. 66 of the Economic Commission for Europe of the United Nations – Uniform technical prescriptions concerning the approval of large passenger vehicles with regard to the strength of their superstructure).
• [7] www.detik.com