CAJ | 학술논문

正面碰撞的安全性对车辆前期开发非常重要。为研究前排假人腿部受伤害的影响因素,对假人进行摆锤冲击试验。Hybrid-III 50th男性假人安放在标定台座椅上，用5 kg的摆锤，以2.75 m/s速度，冲击假人左腿膝部或小腿，测量了大腿受力F、膝部位移D、上小腿绕X、Y轴的弯矩MX 和MY、轴向压缩力FZ，以及胫骨指数(TI)。结果表明：当假人小腿中心与地面的夹角α为76°值时，F、D、MY发生突变。因此，为减少对小腿的伤害，在做车辆人机工程时，在大腿力容许范围内，应尽量使小腿碰撞位置靠近膝部，并使角α小于76°。
정면팽당적안전성대차량전기개발비상중요。위연구전배가인퇴부수상해적영향인소,대가인진행파추충격시험。Hybrid-III 50th남성가인안방재표정태좌의상，용5 kg적파추，이2.75 m/s속도，충격가인좌퇴슬부혹소퇴，측량료대퇴수력F、슬부위이D、상소퇴요X、Y축적만구MX 화MY、축향압축력FZ，이급경골지수(TI)。결과표명：당가인소퇴중심여지면적협각α위76°치시，F、D、MY발생돌변。인차，위감소대소퇴적상해，재주차량인궤공정시，재대퇴력용허범위내，응진량사소퇴팽당위치고근슬부，병사각α소우76°。
Front impact safety is important to early develop vehicles. Pendulum impacts were performed on a dummy to investigate the inlfuence factors to front-seated-dummy lower-leg injury. A Hybrid-III 50th male dummy was seated on a chest calibration table. The dummy lower leg or knee was impacted by a 5-kg pendulum at 2.75 m/s. The upper-leg force F, the knee displacement D, the lower-leg-upper bending-moment MX and MY, the axial compression FZ, and the tibia-index (TI) during impacts were measured. The results show that theαof 76° is a special angle between the lower-leg center-line and horizontal ground, because the F, the D and MY have abrupt changes when the impact occurres at 76°. Therefore, it wil be considered that lower-leg impact-position should be close to the knee center with the upper-leg force within an accepted range at man-machine engineering design stage to reduce lower-leg injury. The angleαshould be avoid being at the special angle of 76°.