非规则V形表面织构化机械端面密封性能研究

doi:10.11949/0438-1157.20220898

摘要/Abstract

摘要：

针对一种新型非规则V形表面织构化机械密封端面，建立了界面液膜的润滑模型，采用有限单元方法求解雷诺方程，研究了表面织构开孔面积比、深度比、特征数和密封介质压力对端面密封的承载力、泄漏率、摩擦因数和液膜刚度等密封性能参数的影响规律，并对经典三角形织构和圆形织构化端面密封进行了对比分析。结果表明：端面新型非规则V形织构具有收集和汇聚液膜的作用，增强了动压效应；织构开孔面积比、深度比、特征数和密封介质压力的变化对V形与三角形表面织构的密封性能影响较大，而对圆形织构表面的密封性能影响不明显；在研究几何和工况参数范围内，这种新型V形表面织构的机械密封性能相对较优，其承载力、摩擦因数与液膜刚度均略优于三角形织构，远优于圆形织构，研究结果可为织构化端面密封的设计开发提供支持。

关键词: 表面, 织构, 有限元方法, 数值模拟, 密封性能, 微尺度

Abstract:

As for the end face of a new irregular V-shaped surface textured mechanical seal, the lubrication model of the liquid film was established, and the Reynolds equation was solved by the finite element method (FEM). The influences of the area ratio (AR), depth ratio, characteristic number and pressure of seal medium on the seal performance such as load-carrying capacity (LCC), leakage rate, friction coefficient and liquid film stiffness of the seal face were investigated, and the classical triangular texture and circular textured face seals were comparatively analyzed. The results showed that the new irregular V-shaped texture on the seal face had the function of collecting and converging liquid film and enhanced the hydrodynamic effect. The AR, depth ratio, characteristic number and pressure of the sealing medium had a great influence on the seal performance of the V-shaped and triangular textures, but had little effect on that of the circular textures. The seal performance of the new V-shaped surface textured mechanical seal was relatively better based on the research geometry and working conditions, and its LCC, friction coefficient and liquid film stiffness were slightly better than those of the circular texture, and far better than that of the circular texture. Although the leakage rate of the V-shaped texture was slightly lower than that of the triangular texture, it presented an increasing trend. When the AR was greater than 10% and the depth ratio was greater than 1.00, the V-shaped texture had more advantages than the triangular and circular texture. And when the depth ratio was about 1.77 and 1.50, the V-shaped texture had the maximum LCC and liquid film stiffness, respectively. Under the different sealing pressures, the liquid film stiffness of the V-shaped texture was twice that of the triangle texture. The findings can provide support for the design and development of textured face seals.

Key words: surface, texture, finite element method, numerical simulation, seal performance, microscale

中图分类号:

TH 117.2

赵文静, 屠治荣, 孟祥铠, 江锦波, 彭旭东. 非规则V形表面织构化机械端面密封性能研究[J]. 化工学报, 2022, 73(10): 4585-4593.

Wenjing ZHAO, Zhirong TU, Xiangkai MENG, Jinbo JIANG, Xudong PENG. Effect of irregular V-shaped surface texture on the performance of mechanical face seal[J]. CIESC Journal, 2022, 73(10): 4585-4593.

图/表 6

图1 表面织构化的机械密封示意图

Fig.1 Schematic diagram of mechanical seal with textured surface

图2 不同织构形状的密封端面液膜压力分布

Fig.2 Pressure distribution of seal face with different texture shapes

图3 开孔面积比对机械密封性能的影响

Fig.3 Effect of area ratio on mechanical seal performance

图4 深度比对机械密封性能的影响

Fig.4 Effect of depth ratio on mechanical seal performance

图5 特征数对机械密封性能的影响

Fig.5 Effect of characteristic number on mechanical seal performance

图6 密封介质压力对机械密封性能的影响

Fig.6 Effect of seal medium pressure on mechanical seal performance

参考文献 28

29	Meng X K, Bai S X, Peng X D. An efficient adaptive finite element method algorithm with mass conservation for analysis of liquid face seals[J]. Journal of Zhejiang University SCIENCE A, 2014, 15(3): 172-184.
30	马学忠, 孟祥铠, 王玉明, 等. 雷列台阶-环槽端面密封机理与性能研究[J]. 摩擦学学报, 2016, 36(5): 585-591.
	Ma X Z, Meng X K, Wang Y M, et al. Mechanism and performance of end face seal of Rayleigh steps and annular grooves[J]. Tribology, 2016, 36(5): 585-591.
1	张辉, 刘洋, 王伟, 等. 织构化表面设计及其摩擦学应用[J]. 机械工程学报, 2019, 55(17): 85-93.
	Zhang H, Liu Y, Wang W, et al. Surface texture design and its tribological application[J]. Journal of Mechanical Engineering, 2019, 55(17): 85-93.
2	Etsion I, Kligerman Y, Halperin G. Analytical and experimental investigation of laser-textured mechanical seal faces[J]. Tribology Transactions, 1999, 42(3): 511-516.
3	Siripuram R B, Stephens L S. Effect of deterministic asperity geometry on hydrodynamic lubrication[J]. Journal of Tribology, 2004, 126(3): 527-534.
4	彭旭东, 杜东波, 李纪云. 不同型面微孔对激光加工多孔端面机械密封性能的影响[J]. 摩擦学学报, 2006, 26(4): 367-371.
	Peng X D, Du D B, Li J Y. Effect of different section profile micro-pores on seal performance of a laser surface textured mechanical seal[J]. Tribology, 2006, 26(4): 367-371.
5	彭旭东, 杜东波, 盛颂恩, 等. 端面微形体对液体润滑机械密封性能的影响[J]. 摩擦学学报, 2007, 27(4): 352-356.
	Peng X D, Du D B, Sheng S E, et al. Effect of face asperity geometry on performance of a liquid lubricated face seal[J]. Tribology, 2007, 27(4): 352-356.
6	Yu H W, Wang X L, Zhou F. Geometric shape effects of surface texture on the generation of hydrodynamic pressure between conformal contacting surfaces[J]. Tribology Letters, 2010, 37(2): 123-130.
7	Qiu Y, Khonsari M M. Experimental investigation of tribological performance of laser textured stainless steel rings[J]. Tribology International, 2011, 44(5): 635-644.
8	Qiu M F, Delic A, Raeymaekers B. The effect of texture shape on the load-carrying capacity of gas-lubricated parallel slider bearings[J]. Tribology Letters, 2012, 48(3): 315-327.
9	Qiu M F, Minson B R, Raeymaekers B. The effect of texture shape on the friction coefficient and stiffness of gas-lubricated parallel slider bearings[J]. Tribology International, 2013, 67: 278-288.
10	Xie Y, Li Y J, Wang Y M, et al. An experimental investigation of tribological performance of triangular textures in water lubrication regime[J]. Science China Physics, Mechanics and Astronomy, 2014, 57(2): 273-279.
11	Meng F M, Li T T. Study of tribological performances of compound dimples based on diatom shell structures[J]. International Journal of Surface Science and Engineering, 2015, 9(6): 538.
12	李俊玲, 陈平, 邵天敏, 等. 葫芦形微凹坑对不锈钢表面摩擦学性能的影响[J]. 摩擦学学报, 2016, 36(2): 207-214.
	Li J L, Chen P, Shao T M, et al. The effect of gourd-shaped surface texture on tribological performance of stainless steel[J]. Tribology, 2016, 36(2): 207-214.
13	Uddin M S, Liu Y W. Design and optimization of a new geometric texture shape for the enhancement of hydrodynamic lubrication performance of parallel slider surfaces[J]. Biosurface and Biotribology, 2016, 2(2): 59-69.
14	Shen C, Khonsari M M. Numerical optimization of texture shape for parallel surfaces under unidirectional and bidirectional sliding[J]. Tribology International, 2015, 82: 1-11.
15	Shen C, Khonsari M M. Texture shape optimization for seal-like parallel surfaces: theory and experiment[J]. Tribology Transactions, 2016, 59(4): 698-706.
16	Zhang H, Dong G N, Hua M, et al. Improvement of tribological behaviors by optimizing concave texture shape under reciprocating sliding motion[J]. Journal of Tribology, 2017, 139(1): 011701.
17	Zhang H, Hua M, Dong G Z, et al. Optimization of texture shape based on genetic algorithm under unidirectional sliding[J]. Tribology International, 2017, 115: 222-232.
18	Wang X Y, Shi L P, Dai Q W, et al. Multi-objective optimization on dimple shapes for gas face seals[J]. Tribology International, 2018, 123: 216-223.
19	Wang X Y, Khonsari M, Li S Y, et al. Experimental verification of textured mechanical seal designed using multi-objective optimization[J]. Industrial Lubrication and Tribology, 2019, 71(6): 766-771.
20	Buscaglia G C, Ausas R F, Jai M. Optimization tools in the analysis of micro-textured lubricated devices[J]. Inverse Problems in Science and Engineering, 2006, 14(4): 365-378.
21	Waseem A, Temizer İ, Kato J, et al. Homogenization-based design of surface textures in hydrodynamic lubrication[J]. International Journal for Numerical Methods in Engineering, 2016, 108(12): 1427-1450.
22	Waseem A, Temizer İ, Kato J, et al. Micro-texture design and optimization in hydrodynamic lubrication via two-scale analysis[J]. Structural and Multidisciplinary Optimization, 2017, 56(2): 227-248.
23	Codrignani A, Savio D, Pastewka L, et al. Optimization of surface textures in hydrodynamic lubrication through the adjoint method[J]. Tribology International, 2020, 148: 106352.
24	Allaire G, Jouve F, Toader A M. A level-set method for shape optimization[J]. Comptes Rendus Mathematique, 2002, 334(12): 1125-1130.
25	Allaire G, Jouve F, Toader A M. Structural optimization using sensitivity analysis and a level-set method[J]. Journal of Computational Physics, 2004, 194(1): 363-393.
26	Wang M Y, Wang X M, Guo D M. A level set method for structural topology optimization[J]. Computer Methods in Applied Mechanics and Engineering, 2003, 192(1/2): 227-246.
27	Tu Z R, Meng X K, Ma Y, et al. Shape optimization of hydrodynamic textured surfaces for enhancing load-carrying capacity based on level set method[J]. Tribology International, 2021, 162: 107136.
28	Meng X K, Bai S X, Peng X D. Lubrication film flow control by oriented dimples for liquid lubricated mechanical seals[J]. Tribology International, 2014, 77: 132-141.

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