Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
A Bayesian Kriging regression for the accuracy improvement of beam modeled t-junctions of buses and coaches structures with a methodology based on fem behavioral analysis
Year:2014
Research Areas
  • Engineering
Information
Abstract
This paper has been developed in the framework of the alternative beam T-junction solution previously propoused by the authors (Alcalá et al., 2013), with the scope of optimizing the behavior of buses and coaches upper structures modeled with beam type elements. The alternative beam T-junction model proposed by the authors, had a total of six elastic elements at the junction level allowing to modify the localized rigidity of any modeled T-unctions, therefore improving their behavior and avoiding the well known rigidity issue these elements have. A fundamental aspect behind the use of these alternative beam models is related to the necessity of correctly estimating the rigidity values of the elastic elements for each modeled T-junction. In this context, we propose applying a surrogate model for the reference calculations which is based on statistical Bayesian kriging predictors. Statistical predictions have the added value, with respect to deterministic solutions,of providing a quantification of uncertainty. The development of the kriging predictors has required the application of a statistical methodology including computer experiment design, computation of moments of inertia, graphical and ANOVA type sensitivity analysis and Monte Carlo computation of Bayesian inference. The results of the application have been a very satisfactory trade-off between accuracy of approximation prediction) and computational cost. The surrogate kriging models also provide an useful tool for a better understanding of the input-output relationships involved in the reference computations.
International
Si
JCR
Si
Title
International Journal of Automotive Technology
ISBN
1229-9138
Impact factor JCR
0,69
Impact info
Datos JCR del año 2012
Volume
Journal number
From page
1
To page
16
Month
SIN MES
Ranking
Participants
  • Autor: Francisco Mariano Badea Romero (UPM)
  • Autor: Jose Manuel Mira Mcwilliams (UPM)
  • Autor: Enrique Alcala Fazio (UPM)
  • Autor: Francisco Aparicio Izquierdo (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Estadística computacional y Modelado estocástico
  • Grupo de Investigación: Grupo de Inv. en Seguridad e Impacto Medioambiental de Vehículos y Transportes (GIVET)
  • Centro o Instituto I+D+i: Instituto Universitario de Investigación del Automóvil (INSIA)
  • Departamento: Ingeniería de Organización, Administración de Empresas y Estadística
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