Improved Energy Absorber and Vehicle Design Strategies for Pedestrian Protection

Shuler, Stephen; Mooijman, Frank; Nanda, Alok; Surisetty, Gopi Krishna

doi:10.4271/2005-01-1872

Cited by 9 publications

(1 citation statement)

References 8 publications

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“…Some researches equip the foreside of the bumper beam with energy-absorbing foam. Shuler et al 22 put forward a buffer pad structure named as eggcrate based on the material of polycarbonate, through the combination method of experiment and simulation. Stupak and Donovan 23 studied the effect of density, shape, and force transmission mode on the energy absorption efficiency of the foam compression deformation.…”

Section: Introductionmentioning

confidence: 99%

Reliability optimization of a novel negative Poisson’s ratio forepart for pedestrian protection

Wang

Zhao

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part C:

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The bumper system always directly causes the injury of the pedestrian leg in the car–pedestrian accidents. Therefore, it is of practical significance to optimize the bumper structure to enhance the protective effect of the pedestrian leg. Based on the original bumper system, this work proposes a novel negative Poisson’s ratio energy-absorbing forepart with inner hexagonal cellular structure, which is designed at the lower leg impact zone between the bumper beam and the cover. The parametric model of the negative Poisson’s ratio forepart, the lower legform impactor model, and the car–pedestrian collision model are firstly established. Then, through integrating the response surface method, second-order reliability method, and archive-based micro genetic algorithm, a reliability optimization design is further conducted for the negative Poisson’s ratio forepart based on the deterministic optimization results. Simulation results show that the optimized negative Poisson’s ratio forepart not only can significantly enhance the reliability and robustness, but also improve the protective effect of the pedestrian leg.

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Section: Introductionmentioning

confidence: 99%