Traffic accident reconstruction is a reverse dynamic problem, which requires hundreds of iterations to reconstruct the whole process of accident. However, in current pedestrian-vehicle accident reconstructions, it is difficult to quickly establish a pedestrian model based on specific cases, and it is hard to solve the contradiction between calculation accuracy and calculation time. In this paper, a personalized pedestrian customization method is proposed. First, the pedestrian structure is divided into independent modules according to obvious bony markers. For each independent module, multi-body (MB) model and finite element (FE) model are established, respectively. Then the appropriate modules are selected to form the whole hybrid pedestrian model. This method can customize the structure of pedestrian model according to the injury characteristics of pedestrians in specific accidents, and customize the parameters of pedestrian model according to the height and weight of pedestrians. The impact simulation tests are carried out on hybrid pedestrian models to verify the reliability of the models. The proposed method can effectively improve the modeling efficiency of pedestrian models and the reconstruction quality of pedestrian traffic accidents.

中文翻译：

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混合动力人体模型的个性化定制方法用于行车事故重建

交通事故重建是一个逆向动态问题，需要数百次迭代才能重建事故全过程。然而，在目前的行人-车辆事故重建中，很难根据具体情况快速建立行人模型，难以解决计算精度与计算时间的矛盾。本文提出了一种个性化的行人定制方法。首先，根据明显的骨骼标记将行人结构划分为独立的模块。对于每个独立模块，分别建立多体（MB）模型和有限元（FE）模型。然后选择合适的模块形成整个混合行人模型。该方法可以根据行人在具体事故中的受伤特征定制行人模型的结构，并根据行人的身高和体重定制行人模型的参数。对混合行人模型进行冲击仿真试验，验证模型的可靠性。该方法能有效提高行人模型的建模效率和行人交通事故的重建质量。