In the calculation, the DP model is chosen to consider the non-linearity of rock and the status non-linearity of rock-structure interface adopts the surface-surface contactingelement.
计算中岩体采用DP模型，利用面面接触单元考虑岩体与结构交界面的状态非线性。
2
The hair collection element can be in the form of a blade and a hair collecting material mounted to the blade for contacting a surface to be cleaned.
毛发收集元件可以是桨叶的形式，并且毛发收集材料安装至桨叶以接触待清洁表面。
3
Meanwhile a new way to determine the contacting parameters for discrete element analysis is presented.