Optimisation study of occupant restraint system concerning variations in occupant size and crash severity in frontal collisions

Q4 Engineering

International Journal of Vehicle Safety Pub Date : 2016-01-27 DOI:10.1504/IJVS.2015.074373

Yi Huang, Qing Zhou, Xiaowei Zhang, Cong Wang

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引用次数: 4

Abstract

Restraint system parameter configurations encouraged by the current legislative or consumer crash tests cannot provide tailored protection to occupants with different statures under various crash severities. The restraint system parameters should be adapted to different circumstances. In this study, a restraint system optimisation framework was built to explore optimal configurations for five different sizes of occupants in two crash severities. Seat position was treated as a variable in the design space. The optimisation results showed that optimal seat positions had clear patterns for the two crash severities. In high crash severity, dummies tended to sit closer to the knee bolster to achieve better contacts of airbag and knee bolster. In low crash severity, optimal seat positions were farther from knee bolster. With aggressively tuned pretensioner and stature dependent load limiting values, the dummies were efficiently restrained by the seat belt. Tailored protections to the ten cases were achieved after the optimisation, compared to the fixed parameter restraint system. Language: en

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考虑乘员体型变化和正面碰撞严重程度的乘员约束系统优化研究

当前立法或消费者碰撞试验所鼓励的约束系统参数配置，无法在不同碰撞严重程度下为不同身高的乘员提供量身定制的保护。约束系统参数应适应不同的情况。在本研究中，建立了一个约束系统优化框架，以探索两种碰撞严重程度下五种不同体型的乘员的最优配置。座椅位置在设计空间中被视为一个变量。优化结果表明，两种碰撞严重程度下的最优座椅位置具有明显的规律。在碰撞严重程度较高的情况下，假人倾向于坐得离膝盖靠得更近，以更好地接触安全气囊和膝盖靠得更近。在较低的碰撞严重程度下，最佳的座位位置离膝盖较远。通过积极调整预紧器和身高相关的负载限制值，假人被安全带有效地约束。与固定参数约束系统相比，优化后实现了针对十种情况的定制保护。语言:在

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Vehicle Safety Engineering-Automotive Engineering

CiteScore

0.30

自引率

0.00%

发文量

期刊介绍： The IJVS aims to provide a refereed and authoritative source of information in the field of vehicle safety design, research, and development. It serves applied scientists, engineers, policy makers and safety advocates with a platform to develop, promote, and coordinate the science, technology and practice of vehicle safety. IJVS also seeks to establish channels of communication between industry and academy, industry and government in the field of vehicle safety. IJVS is published quarterly. It covers the subjects of passive and active safety in road traffic as well as traffic related public health issues, from impact biomechanics to vehicle crashworthiness, and from crash avoidance to intelligent highway systems.