Carlsson Anna, Davidsson Johan, Linder Astrid, Svensson Mats Y
Chalmers Industrial Technology (Chalmers Industriteknik), Gothenburg, Sweden.
Vehicle Safety Division, Chalmers University of Technology, Gothenburg, Sweden.
Front Bioeng Biotechnol. 2021 Jul 16;9:687058. doi: 10.3389/fbioe.2021.687058. eCollection 2021.
The objective of this study was to present the design of a prototype rear impact crash test dummy, representing a 50th percentile female, and compare its performance to volunteer response data. The intention was to develop a first crude prototype as a first step toward a future biofidelic 50th percentile female rear impact dummy. The current rear impact crash test dummy, BioRID II, represents a 50th percentile male, which may limit the assessment and development of whiplash protection systems with regard to female occupants. Introduction of this new dummy size will facilitate evaluation of seat and head restraint (HR) responses in both the average sized female and male in rear impacts. A 50th percentile female rear impact prototype dummy, the BioRID P50F, was developed from modified body segments originating from the BioRID II. The mass and rough dimensions of the BioRID P50F is representative of a 50th percentile female. The prototype dummy was evaluated against low severity rear impact sled tests comprising six female volunteers closely resembling a 50th percentile female with regard to stature and mass. The head/neck response of the BioRID P50F prototype resembled the female volunteer response corridors. The stiffness of the thoracic and lumbar spinal joints remained the same as the average sized male BioRID II, and therefore likely stiffer than joints of an average female. Consequently, the peak rearward angular displacement of the head and T1, and the rearward displacement of the T1, were lesser for the BioRID P50F in comparison to the female volunteers. The biofidelity of the BioRID P50F prototype thus has some limitations. Based on a seat response comparison between the BioRID P50F and the BioRID II, it can be concluded that the male BioRID II is an insufficient representation of the average female in the assessment of the dynamic seat response and effectiveness of whiplash protection systems.
本研究的目的是展示一款代表第50百分位女性的原型后碰撞测试假人的设计，并将其性能与志愿者的反应数据进行比较。其意图是开发一个初步的粗糙原型，作为迈向未来生物逼真的第50百分位女性后碰撞假人的第一步。当前的后碰撞测试假人BioRID II代表第50百分位男性，这可能会限制关于女性乘员的鞭打保护系统的评估和开发。引入这种新的假人尺寸将有助于评估后碰撞中平均身材女性和男性的座椅及头枕（HR）反应。一个第50百分位女性后碰撞原型假人BioRID P50F，是由源自BioRID II的经过修改的身体部分开发而成。BioRID P50F的质量和大致尺寸代表第50百分位女性。该原型假人针对低严重程度后碰撞雪橇测试进行了评估，测试包括六名在身高和体重方面与第50百分位女性非常相似的女性志愿者。BioRID P50F原型的头部/颈部反应类似于女性志愿者的反应通道。胸腰椎关节的刚度与平均身材男性BioRID II保持相同，因此可能比平均女性的关节更硬。因此，与女性志愿者相比，BioRID P50F的头部和T1的峰值向后角位移以及T1的向后位移较小。BioRID P50F原型的生物逼真度因此存在一些局限性。基于BioRID P50F与BioRID II之间的座椅反应比较，可以得出结论，在评估动态座椅反应和鞭打保护系统的有效性时，男性BioRID II不能充分代表平均女性。
