• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2026, Vol. 62 ›› Issue (5): 244-252.doi: 10.3901/JME.260241

• 机械动力学 • 上一篇    

扫码分享

基于材料试验的滚子-衬套摩擦特性研究

姚思博1,2, 罗忠1,2,3, 周生浩1,2, 许春阳1,2,4, 张宏伟1,2, 赵江1,2   

  1. 1. 东北大学机械工程与自动化学院 沈阳 110819;
    2. 航空动力装备振动及控制教育部重点实验室 沈阳 110819;
    3. 东北大学佛山研究生创新学院 佛山 528312;
    4. 中国航发沈阳发动机研究所 沈阳 110015
  • 收稿日期:2024-04-28 修回日期:2024-12-26 发布日期:2026-04-23
  • 作者简介:姚思博,男,1996年出生,博士研究生。主要研究方向为机构动力学。E-mail:siboyao@163.com
    罗忠(通信作者),男,1978年出生,博士,教授,博士研究生导师。主要研究方向为主要从事机构动力学、机械动力学与智能控制、转子动力学与低振动设计、模型试验相似理论与测试技术。E-mail:zhluo@mail.neu.edu.cn
  • 基金资助:
    国家科技重大专项(J2019-IV-0002-0069)、国家自然科学基金(12272089,U1908217)和中央高校基本科研业务费专项资金(N2224001-4,N2003013,N2303002,N2403004)资助项目。

Research on Friction Characteristics of Roller-bushing Based on Material Experiment

YAO Sibo1,2, LUO Zhong1,2,3, ZHOU Shenghao1,2, XU Chunyang1,2,4, ZHANG Hongwei1,2, ZHAO Jiang1,2   

  1. 1. School of Mechanical Engineering & Automation, Northeastern University, Shenyang 110819;
    2. Key Laboratory of Vibration and Control of Aero-Propulsion System of Ministry of Education, Northeastern University, Shenyang 110819;
    3. Foshan Graduate School of Innovation, Northeastern University, Foshan 528312;
    4. AECC Shenyang Engine Research Institute, Shenyang 110015
  • Received:2024-04-28 Revised:2024-12-26 Published:2026-04-23

摘要: 航空发动机轴对称推力矢量喷管因其能够实现360°矢量偏转,是实现推力矢量转化能力的关键部件之一。目前,在进行喷管设计和动力学研究时,大多数是将其关节摩擦系数考虑为恒定,但摩擦系数往往具有时变效应,使得机构在实际工作过程中由于摩擦力动态变化以及设计不合理导致关节出现磨损或卡滞等问题。为此,基于材料级摩擦试验实测数据,首先提出一种考虑时变效应的动态摩擦系数模型,然后建立轴对称推力矢量喷管动力学模型,得到滚子-衬套关键部件的载荷及运动边界条件,在此基础上,分析时变效应对滚子-衬套摩擦特性的影响。结果表明:摩擦系数的时变效应对运行开始阶段的摩擦力影响较为明显,进行机构设计时需重点考虑。

关键词: 轴对称推力矢量喷管, 摩擦试验, 动态摩擦系数, 摩擦特性

Abstract: Axisymmetric vectoring exhaust nozzle for aero-engine is one of the key components for achieving thrust vectoring conversion capability due to its ability to achieve 360 ° vector deflection. At present, in nozzle design and dynamic research, most consider the joint friction coefficient to be constant. However, the friction coefficient often has a time-varying effect, which leads to problems such as joint wear or sticking in the actual working process of the mechanism due to dynamic changes in friction force and unreasonable design. Therefore, based on the measured data of material level friction experiments, a dynamic friction coefficient model considering time-varying effect is first proposed. Then, an Axisymmetric Vectoring Exhaust Nozzle dynamic model is established to obtain the load and motion boundary conditions of the key components of the roller-bushing. On this basis, the influence of time-varying effect on the friction characteristics of the roller-bushing. is analyzed. The results show that the time-varying effect of friction coefficient has a more significant impact on the friction force at the beginning of operation, and should be carefully considered in mechanism design.

Key words: axisymmetric vectoring exhaust nozzles, friction experiment, dynamic friction coefficient, friction characteristics

中图分类号: