Abstract The Flexible Pedestrian Legform Impactor (Flex-PLI) consisting of a flexible femur and tibia will be tested for pedestrian protection by Euro NCAP within the next couple of years as a potential replacement for the Transport Research Laboratory (TRL) legform impactor. The injury risks that are measured when using Flex-PLI are the elongation of the anterior/posterior cruciate ligament (A/PCL), elongation of the medial collateral ligament (MCL), and tibia bending moment (TBM). In this study, we used a correlated computer-aided engineering (CAE) model to conduct a contribution analysis of each injury with regard to the changes in the location of the frontal structures based on the results of a design of experiments (DOE) and analysis of variance (ANOVA). The frontal structures that were selected as control factors were the energy absorber (EA), lower bumper stiffener (LBS), and hood angle. A kriging interpolation model was developed using the DOE results, and its results were compared with those of the CAE model. Furthermore, for robust design optimization, the speed and height of Flex-PLI were used as the noise factors. Finally, a robust design optimization was carried out using the optimal combination of the discrete control factors for minimizing MCL elongation.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Robust design optimization of frontal structures for minimizing injury risks of Flex Pedestrian Legform Impactor


    Contributors:
    Lee, Y. H. (author) / Joo, Y. J. (author) / Park, J. S. (author) / Kim, Y. S. (author) / Yim, H. J. (author)

    Published in:

    Publication date :

    2014-08-01


    Size :

    8 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Robust design optimization of frontal structures for minimizing injury risks of Flex Pedestrian Legform Impactor

    Lee, Y. H. / Joo, Y. J. / Park, J. S. et al. | British Library Online Contents | 2014



    Development of Injury Probability Functions for the Flexible Pedestrian Legform Impactor

    Takahashi, Y. / Matsuoka, F. / Okuyama, H. et al. | British Library Conference Proceedings | 2012


    Development of a Non-Frangible Pedestrian Legform Impactor

    Marous, J. R. / Reynolds, D. B. / Longhitano, D. C. et al. | British Library Conference Proceedings | 1998


    Development of a Biofidelic Flexible Pedestrian Legform Impactor

    Konosu, Atsuhiro / Tanahashi, Masaaki / Japan Automobile Research Institute et al. | SAE Technical Papers | 2003