To improve vehicle side crashworthiness, this paper first introduces the negative Poisson’s ratio structure to the traditional B-pillar and proposes a negative Poisson’s ratio B-pillar. Then, the performance of the negative Poisson’s ratio B-pillar is studied in detail by comparison with a traditional B-pillar and honeycomb B-pillar. Aiming at the problem that the side crashworthiness is also significantly affected by the side structure parameters of vehicle body, the factorial analysis theory is adopted to screen out the side structure parameters with significant effect. Based on this, by combining the optimal Latin hypercube design and response surface model, a multi-objective optimization design is conducted for those structure parameters based on non-dominated sorting genetic algorithm II. Finally, the normal boundary intersection method is adopted to seek the Pareto optimal solution, and the simulation results show that compared with the traditional B-pillar, the negative Poisson’s ratio B-pillar optimized by non-dominated sorting genetic algorithm II has better comprehensive crashworthiness. The results of this paper can provide some basis for the design and optimization of vehicle side crashworthiness.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Multi-objective crashworthiness optimization of vehicle body with negative Poisson’s ratio structure based on factorial analysis


    Contributors:
    Zou, Songchun (author) / Dai, Shijuan (author) / Zhao, Wanzhong (author) / Wang, Chunyan (author) / Zhang, Han (author)


    Publication date :

    2020-12-01


    Size :

    18 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Multi-objective reliability design optimization of a novel side door negative Poisson’s ratio impact beam

    Zhou, Guan / Zhao, Wanzhong / Ma, Zheng-Dong et al. | SAGE Publications | 2018



    Multi Objective Optimization of Vehicle Crashworthiness Based on Combined Surrogate Models

    Zheng, Ling / Gao, Yinan / Zhan, Zhenfei et al. | British Library Conference Proceedings | 2017


    Multi Objective Optimization of Vehicle Crashworthiness Based on Combined Surrogate Models

    Zheng, Ling / Gao, Yinan / Li, Yinong et al. | SAE Technical Papers | 2017