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.

Air pressure resistance  /  Door seal  /  Side crash  /  Temperature