Define occupant restraint system characteristics by using two-step trapezoid method based on ride-down rate control in frontal impact

Q4 Engineering
Jian Zhou, Shao Qiu, Junyuan Zhang, Yue Ma
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引用次数: 4

Abstract

This paper presents a trapezoid method for occupant restraint system design analysis based on occupant ride-down energy control theory. The sub-system characteristic determination of an occupant restraint system could be simplified and analysed by a two-step trapezoid energy curve which is generated from ride-down energy control method. The parameter definitions resulted from the target two-step residual energy trapezoid analysis for some case studies were put into a numerical model for validation. Occupant responses showed very good agreements between the outcomes both from trapezoid analysis and the numerical simulation. In the concept design phase, this method could be used to give rapid assessments for restraint system parameters based on occupant injury target, available vehicle crush space and interior survival space design, and provide reliable inputs for sub-restraint system design and a good reference point for the initial restraint system layout.
采用两步梯形法定义正面碰撞下的乘员约束系统特性
提出了一种基于乘员下车能量控制理论的乘员约束系统设计分析的梯形方法。乘员约束系统子系统特性的确定可以用两步梯形能量曲线进行简化和分析。将目标两步剩余能量梯形分析所得到的参数定义转化为数值模型进行验证。梯形分析结果与数值模拟结果吻合较好。在概念设计阶段,该方法可对基于乘员伤害目标、车辆可用挤压空间和车内生存空间设计的约束系统参数进行快速评估,为子约束系统设计提供可靠的输入,为初始约束系统布局提供良好的参考点。
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来源期刊
International Journal of Vehicle Safety
International Journal of Vehicle Safety Engineering-Automotive Engineering
CiteScore
0.30
自引率
0.00%
发文量
0
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.
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