弹头冲击盔-头-颈的数值模拟和运动仿真

Simulation of the bullet impacting helmet/head/heck

这里根据盔-头-颈的结构特点建立了简化的有限元分析模型。利用LS-DYNA3D模拟了弹头冲击头盔时,头部加速度和速度的动态响应特性和颈部的受力过程。并在多参数条件下,对头、颈部的伤害进行了简单的评价。这里所采用的计算方法和模拟结果有助于头颈部组织损伤机理的分析研究,并为头盔内衬结构的优化设计和改进提供了理论参考。

Simplified finite element model was established based on structure characteristic of helmet/ head/neck. Dynamic character of head and the force of neck was simulated by LS - DYNA when the bullet impact helmet. Finally the damage of head/neck was simply estimated in case of changing multi - parameter. The work of this paper was useful for researching injury mechanism of head/ neck tissue, optimizing and improving the design of pad structure.