Abstract

For a typical coach, interior seats and partitions are considered as secondary collision objects in the event of a frontal collision. When a seat back has a deployable leaf-table, the additional effect of the leaf-table should be considered too. To investigate the effect of occupant collision with these objects, a full-scale frontal crash test of a coach was conducted with an impact velocity of 30 km/h. For virtual tests, a coupling model of partition-seat-occupants on a sled was established using the combination of LS-DYNA and MADYMO. It was validated using the full-scale test. The injury severity of the first row occupants was evaluated under different restraint conditions. Results show that occupants who are not belted and those with a lap belt only have the highest injury severity. A comparison of kinematics and injury characteristics between the first row occupants and the non-first row occupants was conducted to provide a comparative analysis.

摘要

对于典型的客车而言，内部座椅和隔板在发生正面碰撞时被视为二次碰撞对象。当座椅靠背具有可展开的叶桌时，还应考虑叶桌的附加效果。为了研究乘员与这些物体碰撞的影响，对一辆客车进行了全面的正面碰撞测试，碰撞速度为 30 公里/小时。对于虚拟测试，使用 LS-DYNA 和 MADYMO 的组合建立了雪橇上隔板-座位-乘员的耦合模型。使用全面测试对其进行了验证。在不同的约束条件下评估了第一排乘客的伤害严重程度。结果表明，未系安全带和系腰带的乘员受伤程度最高。