基于连续动态分析的自冲击密封泄漏稳定性评估与可靠性设计研究

冯聪; 钮硕硕; 王衍; 刘永振; 徐乾; 王天烁; 张正阳

doi:10.11949/0438-1157.20260768

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基于连续动态分析的自冲击密封泄漏稳定性评估与可靠性设计研究

表面与界面工程 | 更新时间：2026-07-06

- 基于连续动态分析的自冲击密封泄漏稳定性评估与可靠性设计研究
- Leakage stability assessment and reliability-based design of self-impacting seals via continuous dynamic analysis
- 化工学报 2026年
- 作者机构：
  
  1.江苏海洋大学机械工程学院，江苏连云港 222005
  2.江苏中科能源动力研究中心，江苏连云港 222042
- 作者简介：
  
  冯聪（1993—），男，博士，讲师，congfeng@jou.edu.cn
  王衍（1989—），男，博士，教授，wy_seal@jou.edu.cn
- 基金信息：
  
  国家自然科学基金项目(52275192);高端装备界面科学与技术全国重点实验室开放基金资助项目(SKLTKF25B07);江苏省高校“青蓝工程”项目;连云港市科技计划项目(JCYJ2046);连云港市科技计划项目(CX1006);江苏省研究生实践创新计划项目(KYCX25_3868);江苏海洋大学“海州湾英才”创新计划(KQ25028);江苏省高等教育教学改革研究课题(2025JGYB164)
- DOI：10.11949/0438-1157.20260768
  中图分类号： TH117.1
- 收稿：2026-06-04，
  
  修回：2026-07-05，
  
  录用：2026-07-06，
- 稿件说明：
移动端阅览
冯聪, 钮硕硕, 王衍, 等. 基于连续动态分析的自冲击密封泄漏稳定性评估与可靠性设计研究[J/OL]. 化工学报, 2026.

FENG Cong, NIU Shuoshuo, WANG Yan, et al. Leakage stability assessment and reliability-based design of self-impacting seals via continuous dynamic analysis[J/OL]. CIESC Journal, 2026.
冯聪, 钮硕硕, 王衍, 等. 基于连续动态分析的自冲击密封泄漏稳定性评估与可靠性设计研究[J/OL]. 化工学报, 2026. DOI： 10.11949/0438-1157.20260768.

FENG Cong, NIU Shuoshuo, WANG Yan, et al. Leakage stability assessment and reliability-based design of self-impacting seals via continuous dynamic analysis[J/OL]. CIESC Journal, 2026. DOI： 10.11949/0438-1157.20260768.

摘要

针对高端装备旋转轴封在变工况下的密封泄漏稳定性评估问题，现有方法多基于离散数据点分析，难以捕捉泄漏随工况连续变化的动态特性与临界失稳行为。本文以新型自冲击密封为对象，提出一种融合连续动态分析与可靠性映射的评估方法。首先采用径向基函数构建泄漏量随压力与转速的连续响应曲面，进而通过导数分析量化动态稳定性，发现压力在0.57–0.62 MPa区间存在显著临界失稳现象，而转速影响微弱。在此基础上，引入全局与局部不稳定因子，结合应力-强度干涉模型，建立压力至可靠度的定量映射关系。案例研究表明，该方法能有效识别失稳区间，并提出“压力分区运行”与“参数敏感性设计”两条工程准则。所提框架不仅适用于自冲击密封，也为具有类似非线性动态响应的机械系统稳定性评估与稳健设计提供了方法论参考。

Abstract

This paper proposes an evaluation method that integrates continuous dynamic analysis and reliability mapping to address the challenge of dynamic stability assessment of mechanical systems under variable operating conditions. The effectiveness of this method is verified using self-impacting seals as the object. By constructing a continuous response surface via Radial Basis Function (RBF) and conducting derivative analysis

a significant critical instability is identified within the 0.57–0.62 MPa pressure range

with rotational speed showing negligible influence. Global and local instability factors are further incorporated with a stress-strength interference model to establish a quantitative pressure-reliability mapping. The framework effectively pinpoints instability zones and yields practical engineering guidelines

including “pressure-zone operation” and “parameter sensitivity design.” It provides a systematic approach for the reliability design of self-impacting seals and can be extended to other mechanical systems with nonlinear dynamic responses.

关键词

Keywords

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