RESEARCH ON THE TRIBOLOGICAL PERFORMACNE OF GROOVED TEXTURED END SEALS BASED ON GUIDE-AGGREGATION EFFECT

CHEN Xiaoya; ZHANG Lei; LI Meng; SHI Liping

doi:10.16579/j.issn.1001.9669.2025.06.011

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RESEARCH ON THE TRIBOLOGICAL PERFORMACNE OF GROOVED TEXTURED END SEALS BASED ON GUIDE-AGGREGATION EFFECT

·Experimental Research·Testing Technology· | 更新时间：2025-06-09

- RESEARCH ON THE TRIBOLOGICAL PERFORMACNE OF GROOVED TEXTURED END SEALS BASED ON GUIDE-AGGREGATION EFFECT
- Journal of Mechanical Strength Vol. 47, Issue 6, Pages: 91-98(2025)
- 作者机构：
  
  1.安徽工业大学机械工程学院，马鞍山 243032
  2.安徽工业大学芜湖技术创新研究院，芜湖 241002
- 作者简介：
  
  SHI Liping, E-mail: xiaopingguoshi@163.com
- 基金信息：
  
  Natural Science Foundation of China(52205178);Natural Science Foundation of Anhui Province(2108085QE228;2108085ME174);Science and Technology Plan Project of Wuhu City(2023jc02);University Synergy Innovation Program of Anhui Province(GXXT-2023-022)
- DOI：10.16579/j.issn.1001.9669.2025.06.011
  CLC： TH117
- Received：04 December 2023，
  
  Published：15 June 2025
- 稿件说明：
移动端阅览
陈小亚，张磊，李蒙，等.基于引-聚效应的沟槽形织构化端面密封摩擦学性能研究［J］. 机械强度，2025，47（6）：91-98.

CHEN Xiaoya，ZHANG Lei，LI Meng，et al.Research on the tribological performacne of grooved textured end seals based on guide-aggregation effect［J］. Journal of Mechanical Strength，2025，47（6）：91-98.
陈小亚，张磊，李蒙，等.基于引-聚效应的沟槽形织构化端面密封摩擦学性能研究［J］. 机械强度，2025，47（6）：91-98. DOI： 10.16579/j.issn.1001.9669.2025.06.011.

CHEN Xiaoya，ZHANG Lei，LI Meng，et al.Research on the tribological performacne of grooved textured end seals based on guide-aggregation effect［J］. Journal of Mechanical Strength，2025，47（6）：91-98. DOI： 10.16579/j.issn.1001.9669.2025.06.011.

摘要

表面织构设计是实现非接触式机械端面密封低泄漏、长寿命、高可靠运行的有效途径。为考察导向槽织构的界面膜特性，通过设计制备半圆形、人字形与E形等导向槽织构，开展高速运行条件下的试验与理论研究，探究不同导向槽织构对端面密封摩擦学性能的影响。结果表明，导向槽的存在可以有效提升界面膜承载力，改善摩擦学性能。其中，E形导向槽织构性能表现最佳，在深度

=10 μm时，液膜承载力最高可达

=0.527 5 MPa，相比普通沟槽形织构提高了104.6%，摩擦转矩数值降低了53.5%。分析认为沟槽形织构中导向槽的存在能够有效引导润滑介质在织构顶部产生有效聚集并形成压力收敛，进而提高润滑液膜承载力、减少摩擦（“引-聚效应”）。研究结果可为实际应用中非接触式端面密封材料表面织构设计提供参考。

Abstract

Surface texture design is an effective way to achieve small leakage

long life and highly reliable operation of mechanical end seals. To investigate the characteristics of the interface film of guide groove texture

through the design and preparation of

semi-circular

herringbone and E-shaped guide groove textures

experiments and theoretical research under high-speed operation conditions were carried out

the influence of different guide groove textures on the tribological properties of end face seals was explored. The results show that the existence of the guide groove can effectively improve the bearing capacity of the interface film and improve the tribological performance. In numerical calculations

the results show that the frictional performances of face seals varied with the configuration of guide groove. The herringbone textures and E-type ones show an obvious guide-aggregation effect. When the lubricant in E-type texture after being guide-aggregation through the groove

the pressure accumulates at the textured tail barrier

and fluid in the face seal clearance cannot escape from the guide groove boundary. As a result， the low energy loss in system

and an optimal liquid film bearing capacity achieves. Under different depths

the existence of guide groove promotes the hydrodynamic pressure. With the increase in depth

the bearing capacity of the liquid film increases first and then decreases. For the E-shape texture

the optimum bearing capacity of liquid film

=0.527 5 MPa is obtained at

=10 μm. The bearing capacity of fluid film of E-shape texture has a 51.2% increase in comparison to the common grooved texture

the value of frictional torque has a 53.5% decrease. The analysis show that

the configuration of guide groove results in an accumulation of lubricant on the top of texture

which enhances the pressure convergence

thereby improving the bearing capacity of the lubricating fluid film and reducing friction（‘guide⁃aggregation effect’）. The geometric parameters of the guide groove have a significant impact on the fluid dynamic pressure in the end face sealing pair， which will influence the tribological performances of face seal. The research result provides theoretical support for the des

ign of non-contact end face seal material surface texture in future.

关键词

Keywords

references

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