CAJ | 학술논문

首先利用MADYMO软件建立了某客车局部车身段的有限元与多体混合侧翻模型,并进行了侧翻仿真,其变形、碰撞加速度等仿真结果与相应的有限元仿真结果基本一致,说明了用有限元与多体混合模型取代有限元模型进行侧翻分析的有效性。据此接着采用混合模型,在碰撞侧座椅上分别放置单个和两个佩戴两点式安全带的侧碰假人Euro SID-I,研究了侧翻过程中乘员的损伤情况以及乘员间的相互作用对乘员损伤的影响。结果表明,满足ECE R66法规要求的客车在侧翻过程中仍然可能对乘员造成较严重的胸部和腹部损伤,且客车侧翻过程中乘员相互作用会加剧乘员头部、颈部、胸部和腹部的损伤。
수선이용MADYMO연건건립료모객차국부차신단적유한원여다체혼합측번모형,병진행료측번방진,기변형、팽당가속도등방진결과여상응적유한원방진결과기본일치,설명료용유한원여다체혼합모형취대유한원모형진행측번분석적유효성。거차접착채용혼합모형,재팽당측좌의상분별방치단개화량개패대량점식안전대적측팽가인Euro SID-I,연구료측번과정중승원적손상정황이급승원간적상호작용대승원손상적영향。결과표명,만족ECE R66법규요구적객차재측번과정중잉연가능대승원조성교엄중적흉부화복부손상,차객차측번과정중승원상호작용회가극승원두부、경부、흉부화복부적손상。
Firstly a finite element and multi-body mixed rollover model for a bus segment is created and simulated by using MADYMO software with a result conforming to that with finite element ( FE) model, indicating the effectiveness of using above-mentioned mixed model instead of FE model for rollover simulation. Then based on this the mixed model is adopted with one and two Euro SID-I side impact dummies wearing two-point safety belt re-spectively put on the seats in impact side to simulate the occupant injury situation during rollover and the effects of interaction between occupants on their injuries. The results show that the bus meeting the requirements of ECE R66 regulation may still cause severe thoracic and abdominal injuries of occupants and the interaction between occupants may aggravate occupants’ injuries on head, neck, chest and abdomen in rollover crash.