Optimization of Hood Thickness Based on the Multi-Objective

Duo Nian Yu; Lu Yao Zhou; Li Li; Zheng Cai Hu

doi:10.4028/www.scientific.net/AMM.197.755

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 197Optimization of Hood Thickness Based on the...

Optimization of Hood Thickness Based on the Multi-Objective

Abstract:

Head injury of pedestrian is the most common and fatal cause of mortality in vehicle-to-pedestrian crash. And the engine hood is most likely to cause harm to pedestrian head. Efforts to improve engine hood design, which minimize the head injury of pedestrian in vehicle-to-pedestrian crash, are becoming more and more important. In this study, an approximate model of hood thickness for three targets: HIC, mass and modality, is established. In order to meet the requirements of lightweight and reducing vibration and noise, approximate models iterate by the NSGA-II genetic optimization algorithm, and select the Pareto optimal solutions for thickness optimization. At last the study re-simulates the collision between pedestrian head and hood to verify the reliability of the obtained optimization results.

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Periodical:

Applied Mechanics and Materials (Volume 197)

Pages:

755-759

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.197.755

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Online since:

September 2012

Authors:

Duo Nian Yu, Lu Yao Zhou, Li Li, Zheng Cai Hu

Keywords:

Approximate Model, Finite Element Model (FEM), Head-Impactor, HIC

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