%0 Journal Article 
%A Durán Parada, Camilo Alejandro
%T Análisis de la simulación de esfuerzos : un estudio de caso para el evaluación de un procedimiento de prueba de homologación para el diseño de la protección trasera contra empotramiento

%D 2020
%U http://hdl.handle.net/10317/8994
%X Accidents between a passenger vehicle and a heavy weight vehicle (HWV) stand out
as one of the most dangerous ones. These often result in fatal injuries or the death
of the passengers, due to higher dimension and weight differences. One possible
accident situation is the underrunning of a smaller vehicle with the rear end of a
heavy truck. To avoid these types of accidents important parameters have to be
considered when designing the frame of the vehicles or the implementation of safety
equipment. Front, side and rear underrun protections (RUP) are all examples of
safety equipment that avoid the slippage of smaller vehicles beneath heavy truck
frames. In Europe, the legal requirements of these are all fixed in regulations imposed
by the United Nations Economic Commission of Europe (UNECE). Within the
framework of this work, we will specifically analyse the regulation number R58
(revision 2), which contains all technical specifications for RUPs and all steps to a
numerical test. Using a Finite Element (FE) analysis tool like ANSYS Mechanical,
we will develop a computer model from scratch to simulate stress distribution of
a RUP. The model is to be based on the test procedures specified in the R58 and
the design of the RUP will be provided by the company “Laboratorio T´ecnico de
Reformas S.A” (LTR). The main objective of this work is to provide the company
with a simulative software which calculates accurate results, comparable to a real
physical test. We will also check the strength resistance of the provided RUPs design
and if this is capable of withstanding regulative loads. Our results concluded that
this was not the case: the utilized screws, which served as union components for
the RUP, fail before reaching maximum load. However, after some physical tests
performed by the manufacturer, their RUP was also not able to withstand applied
forces. The computational and physical results are subsequently similar. In order to
verify the accuracy of the simulative program, further ten designs were tested with
the same conditions as the first one. After observing promising results, the Entidad
Nacional de Acreditaci´on (ENAC) approved the software for further usage and so
the homologation procedure can be started.
%K Ingeniería Química
%K Vehículos automotores
%K Motor vehicles
%K Mecánica
%K Mechanics
%K Diseño industrial
%K Industrial design
%K 3317 Tecnología de Vehículos de Motor
%K 3313 Tecnología E Ingeniería Mecánicas
%K 6109.01 Prevención de Accidentes
%~ GOEDOC, SUB GOETTINGEN