粘弹性体接触界面广泛存在于重大装备密封、轮胎-路面等系统中，对相应系统和装备的服役性能有重要影响，其摩擦调控对摩擦学理论也不断提出新的要求。本项目将耦合粘弹性体材料特性、变形引起的能量耗散及滞后效应、液体的润湿性、表面形貌等因素的影响，通过研究表面形貌、粘弹性体变形等对接触界面润湿接触线移动机制的影响、界面间分离波的形成与消失对接触特性的影响、界面及微凸体附近液桥的形成、演变及其对界面粘着和摩擦的影响，揭示润湿状态下粘弹性体接触界面摩擦的形成机制，建立粘弹性体润湿界面摩擦调控的理论与方法。结合轮胎-路面单元，通过选择材料特性和改变表面形貌等参数实现界面间摩擦的调控；研究结果将从本质上发展和完善粘弹性体摩擦学设计理论，为改善湿滑条件下轮胎-路面制动性能并提高其服役安全性具有重要的意义。

The contact interfaces of viscoelastic materials are widely existed in the important equipment seals, tire pavement systems, and have important influence on the service performance of the corresponding systems and equipments. The friction regulation also brings new requirement for the tribology theory. This project will coupling the factors of energy dissipation caused by deformation of viscoelastic material, hysteresis, liquid wettability, surface morphology, by studying influence of surface topography, the deformation of viscoelastic body on the movement mechanisms of contact line, formation and disappearance of Schallamach wave and its effect on contact characteristics, liquid bridge formation between interface and near the asperities on the interfacial adhesion and friction, the formation mechanism of friction of wetted interface is revealed, and the theory and method of friction control of wetted viscoelastic interface is established. Taking tread unit as an example, The friction between the interfaces is controlled by selecting the properties of the material and changing the surface morphology, The research results will develop and perfect the theory of tribological design of viscoelastic contact in essence. It is of great significance in improving the braking performance of the tire pavement system and improve its service safety significantly.