论文标题
有限元建模和对超声波和不连续界面之间相互作用的研究
Finite element modelling and investigation of the interaction between an ultrasonic wave and a discontinuous interface
论文作者
论文摘要
当将两个表面接触并相互滑动时，在接口处形成连接。这些连接的形成，破裂和演变的动力学决定了宏观接触的摩擦学反应。了解这些连接的真实行为是一项艰巨的任务。理论指出，由于施加的压力，在两个物体中不断改变接触和垂体，这增加了主动接触的数量。为了解决这种改变的界面条件，提出了通过数值模型的开发通过摩擦学界面传播的波传播。所提出的方法用于研究和关联至关重要的参数，例如刚度，接触宽度，构成界面基础的浅层数量。
When two surfaces are brought into contact and slide against each other, junctions are formed at the interface. The dynamics of formation, rupture and evolution of these junctions governs the tribological response of the macro-contact. Getting insight on the real behavior of these junctions is a challenging task. Theory states that contacts and asperities are continuously altered in two bodies due to applied pressure, which increases the number of active contacts. To addresses such altering interface conditions, wave propagation through tribological interface by means of the development of a numerical model is proposed. The proposed method is used to study and relate crucial parameters like stiffness, contact width, number of asperities that form a basis for an interface.
