Longitudinalforce comes from the torque applied to the tire by the engine or by the brakes.
发动机或者刹车用于轮胎的作用力的纵向分力。
2
The calculated results indicate that the above two theories conform to reality better than the classical theory, the radial stress and the longitudinal internal force are more reasonable.
计算结果表明，上述两种理论比经典理论更加符合实际，径向分布应力和纵向分布内力更加合理。
3
The paper analyses the stability of rib slab on method of energy, the formula of longitudinal critical force is deduced, and rational arrangement of stiffening rib is discussed.