车顶静态压溃FE模型-Roof Strength Fe Model

车辆在汽车翻滚试验，由于乘员舱的压溃变形会入侵乘员的生存空间，导致乘员受到伤害，因此制定FMVSS 216。在车辆下方车底进行刚性固定支撑，保证车轮不与地面相接触；对压板施力,测出运动距离和压力值大小；试验时压板与车辆Y轴夹角为25°保持不变，顶部接触点距压板最前端254mm,试验过程不放置假人，IIHS-NCAP中车顶静态压溃试验的评测方法：根据车顶压溃变形127mm时压力与车重的比值(SWR)来评估车顶抗静压能力；该 FE 模型使用 Hypermesh 和LS-DYNA 开发.
During the rolling test of a vehicle in a car, FMVSS 216 was developed due to the fact that the crushing deformation of the passenger compartment can invade the living space of passengers and cause injury to them. Rigid fixed support should be installed underneath the vehicle to ensure that the wheels do not come into contact with the ground; Apply force to the pressure plate, measure the movement distance and pressure value; During the test, the angle between the pressure plate and the Y-axis of the vehicle remains constant at 25 °, and the top contact point is 254mm away from the front end of the pressure plate. No dummy is placed during the test. The evaluation method for the static crushing test of the roof in IIHS-NCAP is to evaluate the static pressure resistance of the roof based on the ratio of pressure to vehicle weight (SWR) when the roof crushing deformation is 127mm; The FE model was developed using Hypermesh and LS-DYNA.
車両の自動車横転試験では、乗員室の圧潰変形が乗員の生存空間に侵入し、乗員が傷害を受けることがあるため、FMVSS 216を制定した。車両の下方の車底に剛性固定支持を行い、車輪が地面に接触しないことを保証する、押え板に力を加え、運動距離と圧力値の大きさを測定する、試験時の押え板と車両Y軸の角度は25°で変わらず、上部接触点は押え板の最先端から254 mm離れ、試験過程に偽者を置かず、IIHS-NCAPにおける屋根の静的圧潰試験の評価方法：屋根圧潰変形127 mm時の圧力と車重の比（SWR）に基づいて屋根の静圧抵抗能力を評価する、このFEモデルはHypermeshとLS-DYNAを用いて開発された。