Considering the tangential force applied on a contact spot, the critical area demarcating the elastic and plastic regimes is obtained by comparing the normal elastic load with the normal plastic load.
计及作用于接触斑点上的切向力，通过比较作用于接触斑点上的法向弹性载荷与法向塑性载荷，确定了区分弹性接触与塑性接触区域的临界接触斑点面积。
In the mean time, the vertical and roll motions of the pantograph fame should be as small as possible, so that to make the contact force as normal as the conventional train.
并且使受电弓框架垂向位移和侧滚角度足够小，弓网接触压力达到车辆正常曲线通过时的水平。
Results (1)The traumatic contact area was larger and contact force was greater than that of the normal occlusal contact.
结论创伤有以下特点。 ①与正常比较，创伤有明显的异常接触区，该区的接触面积或接触力明显增大。
Every electrical contact is designed to provide a certain amount of normal force at the contact interface.
所有的电气触点都可以在接触界面提供一定量的法向力。
The influences of many contact parameters such as initial normal force, contact angle, contact stiffness and coefficient of friction were obtained.
获得了凸肩接触面初始正压力、接触角度、接触刚度、摩擦系数等多种参数对叶片非线性响应的影响规律。
To further complicate matters, the normal force generated by the contact will change over time, due to several factors.
对于更加复杂的情况，由于众多因素的影响，触点产生的法向力会随着时间的变化而变化。
To further complicate matters, the normal force generated by the contact will change over time, due to several factors.
对于更加复杂的情况，由于众多因素的影响，触点产生的法向力会随着时间的变化而变化。
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