Assembly Simulation and Sealing Performance Analysis of Perfluoro Rubber Seal Rings

DING Yukun; GONG Hao; LIU Jianhua; WANG Kai; LIU Shaoli; AO Xiaohui

doi:10.12382/bgxb.2025.1101

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Assembly Simulation and Sealing Performance Analysis of Perfluoro Rubber Seal Rings

更新时间：2026-07-31

- Assembly Simulation and Sealing Performance Analysis of Perfluoro Rubber Seal Rings
- Acta Armamentarii (2026)
- 作者机构：
  
  1. 北京理工大学机械与车辆学院,北京,100081
  2. 北京理工大学唐山研究院河北省智能装配与检测技术重点实验室,河北,唐山,063000
  3. 北京理工大学（珠海）智能制造技术研究中心,广东,珠海,519088
- 作者简介：
- 基金信息：
- DOI：10.12382/bgxb.2025.1101
  CLC： O351
- Received：15 December 2025，
  
  Online First：31 July 2026，
- 稿件说明：
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丁玉坤，巩浩，刘检华，等. 全氟橡胶密封圈装配仿真与密封性能分析[J/OL]. 兵工学报, 2026(2026-07-31). https://doi.org/10.12382/bgxb.2025.1101.

DING Y K, GONG H, LIU J H, et al. Assembly simulation and sealing performance analysis of perfluoro rubber seal rings[J/OL]. Acta Armamentarii, 2026(2026-07-31). https://doi.org/10.12382/bgxb.2025.1101. (in Chinese)
丁玉坤，巩浩，刘检华，等. 全氟橡胶密封圈装配仿真与密封性能分析[J/OL]. 兵工学报, 2026(2026-07-31). https://doi.org/10.12382/bgxb.2025.1101. DOI：

DING Y K, GONG H, LIU J H, et al. Assembly simulation and sealing performance analysis of perfluoro rubber seal rings[J/OL]. Acta Armamentarii, 2026(2026-07-31). https://doi.org/10.12382/bgxb.2025.1101. (in Chinese) DOI：

摘要

全氟橡胶密封圈具有耐高温、耐腐蚀、耐磨损等特点，在航空航天、兵器船舶、石油化工等领域应用广泛，当前全氟橡胶密封圈的密封性能缺少系统评估，为此提出面向不同温度的全氟橡胶密封圈装配仿真与密封性能分析方法，构建从宏观装配仿真到微观接触泄漏率计算的多尺度分析框架，建立不同温度条件下全氟醚橡胶超弹性本构关系模型，对全氟橡胶密封圈宏观应力变形进行仿真，并建立密封面微观接触模型，求解微观泄漏通道。基于微通道内流体运动仿真实现全氟密封圈泄漏率精确计算，系统研究温度、粗糙度、压缩量等因素对密封性能的影响规律。搭建了气密性实验台，对全氟密封圈泄漏率进行了实验测试，验证了所提仿真方法的可靠性与准确性。研究结果表明，高温或低温均会导致全氟密封圈密封性能衰减，且低温环境对密封性能影响更显著。

Abstract

Perfluoro rubber seal ringhasthecharacteristicsofhigh-temperature resistance

corrosion resistance

and wear resistance. It iswidely used inthefieldsofaerospace

weaponry and ships

and petrochemical industries. Currently

there is a lack of systematic evaluation of the sealing performance of perfluoro rubber seal rings.Therefore，a simulation method for the assembly ofperfluoro rubber sealing rings at different temperatures and an analysis method for sealing performance areproposed.A multi-scale analysis framework spanning fromthemacroscopic assembly simulation tothemicroscopic contact and leakage rate calculationis constructed. A temperature-dependent hyperelastic constitutive model for perfluoroether rubber is established. The macroscopic stress and deformation of perfluoro rubber seal ring are simulated

and a microscopic contactmodel of the sealing interface is developed to solve forthemicroscopic leakage channels.Theaccurate calculation of the leakage rate for perfluoro seal rings is achievedbased onthesimulationoffluid flow within these microchannels. The influencesoftemperature

roughness and compressionamountonthesealing performancearesystematically investigated. An airtightness test bench is built to experimentally measure the leakage rate of the perfluoro rubber seal ring

thusvalidating the reliability and accuracy of the proposed simulation method. The results indicate that bothhighandlowtemperatures lead to degradation in sealing performance

andthe effect oflow-temperature environmentonsealing performanceismore pronounced.

关键词

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references

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