Biofidelity Evaluation of a Prototype Hybrid III 6 Year-Old ATD Lower Extremity
Biofidelity Evaluation of a Prototype Hybrid III 6 Year-Old ATD Lower Extremity
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原型 Hybrid III 6 岁 ATD 下肢的生物保真度评估
DOI：
10.1007/s10439-016-1562-1
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发表时间：
2016
影响因子：
3.8
通讯作者：
J. Bolte
中科院分区：
文献类型：
--
作者：
L. Boucher;Julie A. Bing;J. Bolte
在研究已知与车辆内部相互作用的身体区域时，6岁的拟人测试设备（ATD）的四肢中不完整的仪器和缺乏生物保真度构成了挑战。本研究旨在比较具有生物力学踝关节和胫骨测力传感器的原型Hybrid III 6岁ATD腿（ATD-LE）与先前收集的儿童志愿者数据以及当前Hybrid III 6岁ATD（HIII）。进行人体测量、活动范围（ROM）和刚度测量，沿着使用膝垫气囊（KBA）测试场景对ATD-LE进行动态评估。在12次测量中，8次的人体测量值相似。与HIII相比，无缓冲器的ATD-LE的总踝关节ROM有所改善。最高胫骨力矩和胫骨指数值是在KBA场景中记录的，此时脚趾在气囊展开前与仪表板接触，迫使踝关节承受轴向载荷和背屈。虽然ATD-LE的生物保真度仍有必要改进，但这项研究的结果令人鼓舞。6岁ATD踝关节的继续推进是必要的，以提供一个工具，直接研究在机动车碰撞过程中的腿的行为。
Incomplete instrumentation and a lack of biofidelity in the extremities of the 6 year-old anthropomorphic test device (ATD) pose challenges when studying regions of the body known to interact with the vehicle interior. This study sought to compare a prototype Hybrid III 6 year-old ATD leg (ATD-LE), with a more biofidelic ankle and tibia load cell, to previously collected child volunteer data and to the current Hybrid III 6 year-old ATD (HIII). Anthropometry, range of motion (ROM), and stiffness measurements were taken, along with a dynamic evaluation of the ATD-LE using knee-bolster airbag (KBA) test scenarios. Anthropometry values were similar in eight of twelve measurements. Total ankle ROM was improved in the ATD-LE with no bumper compared to the HIII. The highest tibia moments and tibia index values were recorded in KBA scenarios when the toes were positioned in contact with the dashboard prior to airbag deployment, forcing the ankle into axial loading and dorsiflexion. While improvements in the biofidelity of the ATD-LE are still necessary, the results of this study are encouraging. Continued advancement of the 6 year-old ATD ankle is necessary to provide a tool to directly study the behavior of the leg during a motor vehicle crash.