Hallman Jason J, Yoganandan Narayan A, Pintar Frank A
Medical College of Wisconsin, Marquette University, and VA Medical Center, Milwaukee, WI.
Biomed Sci Instrum. 2009;45:101-6.
Torso side airbags are typically seat- or door-mounted; i.e., mounted within the seat back or within the door panel lateral to the occupant. Because previous work has shown the propensity of airbags to cause harm in unintended out-of-position occupant orientations, scientific investigation of injury risks continues. Such work involves anthropomorphic test devices and cadaveric specimens which have time and monetary costs associated with their use. These costs necessitate experimental efficiency, achieved by selecting representative airbags from the multitude of options in contemporary automobiles. This study proposes a novel method for characterizing torso side airbag deployment aggressivity for purposes of selection. The test fixture consisted of an array of rigidly positioned three-axis load cells oriented in opposition to a rigid airbag mount at fixed distances of 6 or 8 cm. Six exemplar torso airbag modules were subjected to these two deployment configurations. Force characteristics of maximum resultant force, peak and mean force onset rate, and linear impulse were quantified for comparison. Force characteristics demonstrated ranges between 210% (linear impulse) and 2,500% (mean force onset rate) of minimum value. This test method demonstrated differentiation in the diversity of SAB designs and quantified the airbagenvironment interaction during deployment. These force characteristics may correlate to thoracic injury risk from out-of position torso side airbag deployment.
躯干侧面安全气囊通常安装在座椅或车门上,即安装在座椅靠背内或乘员侧面的车门面板内。由于先前的研究表明安全气囊在非预期的不当乘员姿势下有造成伤害的倾向,因此对伤害风险的科学调查仍在继续。此类工作涉及人体模拟试验装置和尸体标本,使用它们会产生时间和金钱成本。这些成本要求提高实验效率,通过从当代汽车众多的安全气囊选项中选择具有代表性的安全气囊来实现。本研究提出了一种用于选择目的的表征躯干侧面安全气囊展开攻击性的新方法。测试夹具由一系列刚性定位的三轴测力传感器组成,这些传感器与刚性安全气囊支架相对,距离固定为6或8厘米。六个典型的躯干安全气囊模块接受了这两种展开配置。对最大合力、峰值和平均力起始率以及线性冲量的力特性进行了量化比较。力特性显示出最小值的210%(线性冲量)到2500%(平均力起始率)的范围。该测试方法证明了侧面安全气囊(SAB)设计多样性的差异,并量化了展开过程中安全气囊与环境的相互作用。这些力特性可能与不当位置的躯干侧面安全气囊展开导致的胸部受伤风险相关。