空间滚动轴承主动补油系统设计与优化  

Design and Optimization of Active Oil Supply System for Spatial Rolling Bearings

作　　者：吴逸凡 刘杰学 朱雷 张执南[1] WU Yifan;LIU Jiexue;ZHU Lei;ZHANG Zhinan(School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Aerospace Control Technology Institute,Shanghai 200240,China)

机构地区：[1]上海交通大学机械与动力工程学院,上海200240 [2]上海航天控制技术研究所,上海200240

出　　处：《润滑与密封》2025年第2期100-104,共5页Lubrication Engineering

基　　金：上海航天技术研究院——上海交大航天先进技术联合研究基金项目(USCAST2019-25)。

摘　　要：为实现航天器动量交换装置轴承组件高可靠长寿命润滑,提出一种嵌入在动量交换装置内部的压电控制主动补油系统,有效解决了目前压电驱动主动补油系统密封、背压控制、空间占用等方面问题。采用欧拉-拉格朗日(CEL)方法对系统结构进行有限元分析,并采用田口法对关键结构参数压电叠堆变形量、微油孔直径、油腔基体壁面斜率进行了优化。结果表明,最优结构参数组合为压电叠堆形变量0.13 mm,微油孔直径0.78 mm,油腔基体壁面斜率0.58,优化后的系统结构补油效果明显优于优化前。In response to the lubrication failure issue of momentum-bearing components in spacecraft,a piezoelectric-controlled active replenishment oil system embedded within the momentum exchange device was proposed.This system effectively addresses the shortcomings of current piezoelectric-driven active oil replenishment systems regarding sealing,back-pressure control,and spatial occupancy.The Coupled Euler-Lagrange(CEL)method was employed to conduct finite element analysis of the system structure,and the Taguchi method was utilized to optimize key structural parameters,including piezoelectric stack deformation,micro-oil orifice diameter,and slope of the oil chamber substrate wall.The results indicate that the optimal combination of structural parameters includes a piezoelectric stack displacement of 0.13 mm,a micro-oil orifice diameter of 0.78 mm,and an inclined angle of 0.58 for the oil chamber base surface.The post-optimization system demonstrates a significantly improved oil-supplementing effect compared to the pre-optimized state.

关 键 词：空间润滑 主动补油 空间滚动轴承 压电控制 田口法 

分 类 号：TH117.2[机械工程—机械设计及理论] V241[航空宇航科学与技术—飞行器设计]