摘要
用第4代新版丰田人体模型THUMS(Total Human Model for Safety),分析研究了正面碰撞对于乘员人体模型的头部﹑胸部﹑腿部的伤害。基于国内某款运动型多功能车(SUV)零部件试验和正面碰撞试验,利用动态非线性显式有限元方法,建立了有限元约束系统模型,用Hyperworks软件作为前后处理器,用动力学分析软件LS-Dyna为求解器的仿真模式。结果表明:该款THUMS人体模型头骨最大压应力2.4 MPa,颅内压应力44 k Pa,头部无损伤风险;股骨﹑胫骨最大应变0.4%,左右十字韧带应变3.6%,腿部无损伤风险。上肋骨应变大于3%,胸部压缩量达到30 mm,造成胸部简明损伤等级三级(AIS3)的概率为30%。因此,该碰撞工况下最有可能受伤的部位是胸部。
Evaluation analysis research was carried on the head, chest, and leg hurt of occupant body in frontal crash by using a human body model, the fourth generation THUMS （Total Human Model for Safety）. A finite element model （FEM） of restraint system was established using a dynamic nonlinear explicit finite element method based on a domestic SUV （sports utility vehicle） component test and frontal crash test with a Hyperworks as processor and with a dynamics analysis software LS-Dyna solver for simulation model. The results show that the head of the THUMS human body model has no injury risk with the skull maximum stress of 2.4 MPa and the intracranial pressure of 44 kPa; And the legs have no injury risk because of the maximum strain of 0.4% for both the femur and the tibia, and the strain of 3.6% for right and left anterior cruciate ligament The rib strain is above 3% with the chest compression up to 30 mm, these make a 30% probability of AIS （abbreviated injury scale） damage grade level 3 for concise chest. Therefore, the chest injurie has the most possibility in the collision condition.
出处
《汽车安全与节能学报》
CAS
CSCD
2015年第4期379-383,共5页
Journal of Automotive Safety and Energy
基金
重庆高校创新团队建设计划资助项目(KJTD201319)
浙江省汽车安全技术研究重点实验室开放基金资助项目(LHY1308J00336)
汽车零部件先进制造技术教育部重点实验室开放课题资助项目(2012KLMT08)
