中国机械工程 ›› 2026, Vol. 37 ›› Issue (9): 2278-2289.DOI: 10.3969/j.issn.1004-132X.2026.09.020

• 机械基础工程 • 上一篇    

密封圈越孔磨损特性和失效模式研究

房泽臣(), 刘向阳, 陈汉雷, 梁志伟, 焦飞飞, 杨旋, 黄武博, 王森   

  1. 中国航天员科研训练中心, 北京, 100094
  • 收稿日期:2025-08-01 出版日期:2026-09-25 发布日期:2026-10-21
  • 通讯作者: 房泽臣
  • 作者简介:房泽臣*(通信作者),男,1993年生,助理研究员、博士。研究方向为航天器密封系统设计与制造等。E-mail: fangzechen@njust.edu.cn。
    第一联系人:严定伟,男,2001年生,硕士研究生。研究方向为复杂精密运动系统装配误差与精度分析。E-mail: 23010301020@mail.hnust.edu.cn。唐皓*(通信作者),男,1988年生,教授、博士研究生导师。研究方向为复杂精密运动系统误差与精度分析等。E-mail: tanghaocsu@csu.edu.cn。
  • 基金资助:
    拔尖创新团队扶持项目(先进环境控制与生命保障技术研发团队)

Wear Characteristics and Failure Modes for Hole-traversing Sealing Rubber Rings

FANG Zechen(), LIU Xiangyang, CHEN Hanlei, LIANG Zhiwei, JIAO Feifei, YANG Xuan, HUANG Wubo, WANG Sen   

  1. China Astronaut Research and Training Center,Beijing,100094
  • Received:2025-08-01 Online:2026-09-25 Published:2026-10-21
  • Contact: FANG Zechen

摘要:

提出了一种基于分层材料模型和自适应网格的有限元模型以研究密封圈循环越孔运动的磨损行为,该分层材料模型可有效减少超弹性材料模型在自适应网格计算过程中的梯度状态变量错误。通过大规模仿真计算和实验发现,不同材料的密封圈越孔运动的受力特征、磨损特性分为两类,并产生了相应的两种失效模式:越孔运动磨损后接触失效模式和越孔运动变形后剪切失效模式。在越孔运动磨损后接触失效模式下,接触应力具有高度可预测性。进一步研究了越孔密封圈失效机理,为其可靠性设计提供了理论基础和优化策略。

关键词: 密封圈, 越孔运动, 磨损, 自适应网格, 密封失效模式

Abstract:

Targeting the wear characteristics of hole-traversing sealing, an adaptive finite element model was proposed based on a multi-layer material model. By implementing the multi-layer material model, the computational errors in gradient state variables were mitigated effectively during adaptive meshing of hyperplastic materials. Large-scale wear simulation and experiment results demonstrate that there is distinct classification characteristics in both stress state and wear morphology between different materials, which results in two corresponding sealing failure modes, contact surface wear induced sealing failure and shear failure after deformation. A predictive model was established for the contact stress under the first failure mode. Further, the mechanism of failure modes was elucidated providing fundamental basis and practical optimization strategies for enhancing seal reliability.

Key words: sealing ring, hole-traversing sealing, wear, adaptive meshing, sealing failure modes

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