摘 要：振动与其能量通过多层叠加结构的非连续界面的传递机理和损耗特性是一项研究较少的难题,考虑其结构界面粗糙度影响的更少。本文通过建立“单层绝对光滑金属板--刚性平面”和“单层粗糙金属板--刚性平面”的单界面模型，采用有限元方法，对加载与卸载过程中，具有不同界面形态、不同塑性材料特性和界面摩擦的单层模型界面的接触力和变形进行计算，研究了单一界面上的接触力-变形关系，以及由塑性变形与界面摩擦引起的能量损耗特性，获得描述单一界面能量损耗与接触变形的关系表达式。
为研究振动和能量在多层叠加结构的非连续粗糙多界面上的传递机理和损耗特性提供了基础。

Abstract: Research concentration on the transmission and attenuation principle of vibration and energy through multi-layered, discontinuous structure interfaces is lacked, especially in the consideration of interface roughness. The “single absolute smooth metal panel--rigid plane” and “single rough surface metal panel--rigid plane” models are established in this paper to investigate the force-deformation relation and energy loss characteristics on the interface on the effects of plasticity and interface friction during the loading and unloading process. Results for interface of different plastic material models，frictionless and friction are presented and comparisons are drawn. The energy loss coefficient is defined and the expression relates energy loss and interface prosperities is established. Future work will concentrate on the transmission principle and attenuation characteristics of vibration and energy through multi-layered, discontinuous, rough interfaces.