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Evaluation of the seat fastening in the frame of a road bus submitted to frontal impact

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Evaluation of the seat fastening in the frame of a road bus submitted to frontal impact

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Título Evaluation of the seat fastening in the frame of a road bus submitted to frontal impact
Autor Walber, Márcio
Meira Júnior, Agenor Dias de
Goedel, Fábio
Alcalá Fazio, Enrique
Aparicio Izquierdo, Francisco
Iturrioz, Ignacio
Abstract The collective intercity transportation by bus is currently a mean of locomotion much sought after by people. Security in accidents is a very important factor that must be taken into account in design of bus body structure, being the evaluation of passenger safety of this type of vehicle is an important subject that should be checked, because in many accidents occur disconnection between seats and fastening members causing serious passengers injury, often fatal. This work aims at evaluation the behavior of frame fixing of seats of intercity bus bodies, submitted to the frontal impact situation in a rigid wall of 100% offset, through evaluation by finite element method (FEM). This study uses a numerical model corresponding to the body structure and chassis, developed through flexible beam elements, combining with shell elements for the structure of the seats and its fastening members, with the objective of not missing the essential aspects of the problem, allowing the solution with a reduced computational time. The numerical model of bus body and seat was impacted against a rigid wall at a speed of 8.89 m/s, being its validation according to the deceleration curve established by Regulation 80. Then it was gotten the Von Mises stress in fastening members of the seat structure in bus body. It is also presented a proposal to improve the fastening of the seat structure, comparing the results of the stress gotten in the two types fastening submitted to the frontal impact.
Contido em Latin american journal of solids and structures [recurso eletrônico]. Rio de Janeiro. Vol. 11, no. 9 (2014), p. 1463-1489
Assunto Acidentes de trânsito
Estruturas de veículos
Impacto em estruturas
Ônibus
Simulação numérica
[en] Bus body
[en] Design
[en] Fastening members
[en] Impact
[en] Seat
Origem Nacional
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/122601
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