Objective biofidelity rating of a numerical human occupant model in frontal to lateral impact.
Objective biofidelity rating of a numerical human occupant model in frontal to lateral impact.
复制标题
正面到侧面碰撞数值人体模型的客观生物保真度评级。
DOI：
10.4271/2005-22-0020
复制
发表时间：
2005
影响因子：
--
通讯作者：
J. Wismans
中科院分区：
文献类型：
--
作者：
R. de Lange;L. van Rooij;H. Mooi;J. Wismans
硬件碰撞假人和数学人体模型都是在很大程度上使用相同的生物力学数据开发的。对于两者来说，生物保真是一个主要要求。由于数字建模不受硬件碰撞假人设计约束，因此它允许对人体进行更详细的建模，并提供多个方向的生物逼真度。在这项研究中，MADYMO人体乘员模型的多方向的生物保真度进行评估，以潜在地保护乘员在各种冲击条件下。为了评估模型的生物逼真度，正面和侧面碰撞采用了普遍接受的要求：分别由EEVC和NHTSA提出的测试和ISO TR9790规定的测试。使用人体模型模拟指定实验的子集。对于侧向冲击，根据ISO方案对结果进行客观评级。由于没有正面碰撞的评级方案，因此正面碰撞尽可能采用ISO横向评级方案。因此，两个分数显示了正面和侧面碰撞的整体模型生物逼真度，而个人评级则提供了对身体部分水平质量的洞察。结果与发表的THOR和WorldSID假人的结果进行了比较，表明数学模型具有高水平的多方向生物保真度。此外，人体模型在NBDL 11G倾斜测试中的表现也表明了模型在中间方向上的有效行为。本研究的一个新的方面是根据公认的要求对数学人体模型的多向生物逼真度进行客观评估。尽管在法规中可能总是使用硬件假人，但预计使用人体模型的虚拟测试将用于硬件测试环境之外的推断。这项研究是模拟更广泛的碰撞条件的第一步，例如角度碰撞和侧翻。
Both hardware crash dummies and mathematical human models have been developed largely using the same biomechanical data. For both, biofidelity is a main requirement. Since numerical modeling is not bound to hardware crash dummy design constraints, it allows more detailed modeling of the human and offering biofidelity for multiple directions. In this study the multi-directional biofidelity of the MADYMO human occupant model is assessed, to potentially protect occupants under various impact conditions. To evaluate the model's biofidelity, generally accepted requirements were used for frontal and lateral impact: tests proposed by EEVC and NHTSA and tests specified by ISO TR9790, respectively. A subset of the specified experiments was simulated with the human model. For lateral impact, the results were objectively rated according to the ISO protocol. Since no rating protocol was available for frontal impact, the ISO rating scheme for lateral was used for frontal, as far as possible. As a result, two scores show the overall model biofidelity for frontal and lateral impact, while individual ratings provide insight in the quality on body segment level. The results were compared with the results published for the THOR and WorldSID dummies, showing that the mathematical model exhibits a high level of multi-directional biofidelity. In addition, the performance of the human model in the NBDL 11G oblique test indicates a valid behavior of the model in intermediate directions as well. A new aspect of this study is the objective assessment of the multi-directional biofidelity of the mathematical human model according to accepted requirements. Although hardware dummies may always be used in regulations, it is expected that virtual testing with human models will serve in extrapolating outside the hardware test environment. This study was a first step towards simulating a wider range of impact conditions, such as angled impact and rollover.