Being rotated around the fixed axis of the tire with aeration, the outer diameter is increased whereas sidewalls are reduced relative to being aerated.

• 轮胎充气且定轴转动时，由于离心力的作用，轮胎外直径和胎冠曲率比静止充气时增大，而断面宽和胎侧曲率则比静止充气时有所减小。