In the paper, mechanics model of contact and friction based on fractal mathematics is set up according to the theory of contact and friction.
本文从板料冲压成形的接触与摩擦理论分析入手，在此基础上，建立了基于分形数学的板料冲压成形的接触与摩擦力学模型。
参考来源 - 板料冲压成形中的摩擦与回弹研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The more rough and jagged something is, the more easily more of its molecules will come into contact with molecules on the surface it touches, and thus the greater force of friction they will exert.
物体表面越粗糙不平，它的分子就越容易更多地与接触表面的分子相粘合，因此就会产生更大的摩擦力。
In the default model the friction coefficient is defined as afunction of the equivalent slip rate and contact pressure.
在默认模型里，定义摩擦系数为等效滑移率和接触压力的函数。
A close relationship inevitably generates both positive and negative emotions. Where there is contact, there is friction.
亲密的关系不可避免会同时产生正面的和负面的情绪。有接触的地方就会有磨擦。
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