Fretting Wear of Rubber Sealing Ring Caused by Fluid Pressure Fluctuation

Authors

  • Yang Hu Southwest Petroleum University
  • Chuanjun HAN Southwest Petroleum University
  • Jie ZHANG Southwest Petroleum University
  • Zixuan LUO Sichuan Energy Internet Research Institute, Tsinghua University

DOI:

https://doi.org/10.5755/j02.mech.28059

Keywords:

fretting wear, fluid pressure fluctuation, rubber sealing ring, stress-strain, seal performance

Abstract

In the process of gas charging and discharging of gas cylinder, the fluid pressure fluctuates causing fretting wear of rubber sealing ring, which affects the sealing performance. The model of O-ring that installed at the mouth of the gas cylinder was established to study the fretting wear in the static seal. Effects of fluid pressure, compression ratio, friction coefficient and temperature on the fretting wear of the O-ring were considered. The results show that the fretting wear of O-ring can be divided into non-contact region, slip region and sticky region. In the static seal, the compression ratio and friction coefficient are the main factors affecting the fretting wear. The sealing performance is greatly influenced on the compression ratio and it is less affected by the temperature. The junction of slip region and sticky region has the greatest probability of seal failure.

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Published

2021-08-27

Issue

Section

DESIGN AND OPTIMIZATION OF MECHANICAL SYSTEMS