采用试验与有限元相结合的方法研究了安全气囊通气孔直径对驾驶员安全气囊头部损伤判据的影响

Q4 Engineering

International Journal of Vehicle Safety Pub Date : 2017-10-10 DOI:10.1504/IJVS.2017.10008260

M. Rajani, Marzieh Fallahpouramiri

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引用次数: 0

摘要

充气约束系统在事故中对车辆乘员的保护具有重要作用。这些部件的性能直接取决于缓冲垫的参数。安全气囊通风口是一种排气装置，它将气囊内的气体释放到环境中。排气口直径是安全气囊头部损伤标准(HIC)调整的一个参数。为了在仿真验证过程中对展开的安全气囊进行头部碰撞试验，研制了头部形状试验装置。进行了大量的试验和有限元封头形式试验，通过验证程序验证了有限元模拟的准确性。利用验证后的有限元模型分析了安全气囊HIC通风口直径的有效性。通过有限元试验得出了最优通风口直径值。

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A study on the effect of airbag vent diameter on head injury criterion of driver airbag using experimenting and finite element method

Inflatable restraint systems have significant roles in the protection of the vehicle occupants during an accident. The performance of these components directly depends on the parameters of the cushion. An airbag vent is somehow an exhaust which releases gases within the airbag to the ambient. The diameter of the vent is a parameter in adjustment of the head injury criterion (HIC) of the airbag. In this research, a head form testing apparatus has been developed in order to perform the head impact test on deployed airbags in simulation validation procedure. A number of experimental and FEM head form tests are executed so as to endorse the accuracy of the FEM simulation through the validation procedure. The validated FEM model is utilised to analyse the effectiveness of the diameter of the vent in HIC of the airbag. An optimum value for vent diameter is obtained from the results of FEM tests.

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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.