• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2017, Vol. 53 ›› Issue (6): 123-130.doi: 10.3901/JME.2017.06.123

• 运载工程 • 上一篇    下一篇

空心轴过盈配合结构循环微动磨损的仿真研究*

宫昱滨, 鲁连涛, 张远彬, 张继旺, 曾东方   

  1. 西南交通大学牵引动力国家重点实验室 成都 610031
  • 出版日期:2017-03-20 发布日期:2017-03-20
  • 作者简介:宮昱滨,男,1991年出生。主要研究方向为金属疲劳。E-mail:gongyubin1234@163.com鲁连涛(通信作者),男,1965年出生,研究员。主要研究方向为机械结构的损伤、疲劳与断裂、摩擦与磨损。E-mail:luliantao@swjtu.cn
  • 基金资助:
    * 国家自然科学基金资助项目(51375406); 20160315收到初稿,20161227收到修改稿;

Simulation Research on the Fretting Wear of Press-fitted Hollow Axle

GONG Yubin, LU Liantao, ZHANG Yuanbin, ZHANG Jiwang, ZENG Dongfang   

  1. State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031
  • Online:2017-03-20 Published:2017-03-20

摘要:

基于Archard磨损模型建立空心轴过盈配合结构的微动磨损模型,通过有限元计算得到两种过盈量空心轴在微动循环周次的变化下配合面磨损轮廓和接触压应力、摩擦切应力、滑移幅值等微动参量,并与其中一种过盈量的实心轴过盈配合结构相应计算结果进行对比。结果表明,在相同过盈量和外载条件下,空心轴过盈配合结构的微动磨损程度大于实心轴过盈配合结构;在微动磨损对配合面形貌的影响下,空心轴配合面上的微动参量随循环周次增加的变化规律与实心轴结构基本一致:循环周次增加,接触压应力、摩擦切应力和滑移幅值随之增大;接触压应力峰值位置向配合中心移动;摩擦切应力峰值由粘着-滑移交界处向磨损-未磨损交界处转移,并向配合中心移动;增大空心轴过盈配合结构的过盈量能减小空心轴微动磨损的程度。

关键词: Archard磨损模型, 过盈配合, 微动磨损, 空心轴

Abstract:

The fretting wear of two press-fitted hollow axles with different interference grips is simulated by the numerical method based on Archard method within ABAQUS. The evolution of the surface profile and the distributions of the contact parameters with fretting cycles are investigated and compared with those of the solid press-fitted axle with one kind of interference grips. The results show that when the interference grip and the load condition is the same, the wear depth of hollow axle is bigger than that of the solid axle. The influences of fretting wear on the contact parameters of hollow axle with the increase of fretting cycles are the same as those of solid axle. With the increase of fretting cycles, the peak value of the contact pressure and the shear stress increases as well as the slip amplitude, the location of the peak value of the contact pressure moves inward toward the contact zone, the location of the peak value of the shear stress shifts from the stick-slip boundary to the worn-unworn boundary and moves inward toward the contact zone. It is also found that the wear depth of hollow axle will decrease with the increasing of interference grip.

Key words: Archard method, fretting wear, press-fitted, hollow axle