摩擦学系统的系统工程及其航天应用

空间摩擦学问题已成为影响航天器精度、寿命和可靠性增长需求的关键因素之一。本文从摩擦学的三个公理出发并基于此理论，分析航天器所处环境工况下的润滑问题、微动-摩擦学行为耦合作用现象以及摩擦-电学行为耦合问题，并分析与其相对应的摩擦学系统设计需求。根据需求建立面向航天器的摩擦学系统设计思路，通过摩擦学系统设计知识库的建立和管理，运用摩擦学的三个公理，在求解过程中引入专家判定系统，实现考虑摩擦学行为的系统依赖性、时变依赖性与多学科、跨学科性的摩擦学系统设计。

System Engineering of Tribology System for Space Application

Space tribology has become one of the key factors that influence the high-precision and long service life in the spacecraft design. Based on the three axioms of the tribology theory, the lubrication problem, fretting tribology behavior coupling phenomenon and triboelectric effect are analyzed in this paper. The corresponding tribology system design requirements are proposed. According to the designing requirements, the design route of the tribology system for spacecraft is established. Through the establishment and management of the tribology system design knowledge database, a tribology system is designed, which is guided by the three axioms of tribology. Most importantly, an expert judgment system is introduced in the solving process, and tribological characteristics including system dependence, time-varying dependence and multidisciplinary and interdisciplinary are considered in the system design.