侧面碰撞工况下车门封板抗压能力试验研究

Experimental Study on Air Pressure Resistance of Door Seal under Side Crash Condition

设计了一种车门封板抗压能力检测设备,用于模拟汽车在侧面碰撞工况下门腔内的气压变化情况并测试车门封板的极限抗压能力。以此为基础,结合高低温环境箱探究了不同温度、材料硬度、零件结构对车门封板抗压能力的影响。通过多组试验对比,证明了封板极限抗压能力与温度呈负相关,增加背板筋及适当提高材料硬度对抗压能力有明显改善。

A testing device for air pressure resistance of door seal has been designed to simulate the changes of air pressure in door cavity of a car under side crash condition and test the ultimate air pressure resistance of door seal.Based on this,this article studied the influence of different temperatures,material hardness,and part structure on air pressure resistance of the door seal in combination with a high and low temperature environment box.Through multiple experimental comparisons,it has been proven that the ultimate air pressure resistance of door seal is negatively correlated with temperature.Increasing the back plate ribs and appropriately increasing the material hardness can significantly improve air pressure resistance.