Comparison of the Load-Carrying Performance of Mechanical Gas Seals Textured With Microgrooves and Microdimples

Shi, Liping; Wang, Xiuying; Su, Xianghui; Huang, Wei; Wang, Xiaolei

doi:10.1115/1.4031435

Cited by 39 publications

(31 citation statements)

References 30 publications

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“…As advised in Ref. [14,20], regional texture containing several columns is adopted in this paper to investigate the collective effect of adjacent textures.…”

Section: Governing Equationsmentioning

confidence: 99%

“…As mentioned in Ref. [20], the successive over relaxation (SOR) method is utilized to solve the Reynolds equation by combining Eqs. 2and 5, and the pressure distribution between the two mating surfaces is obtained.…”

Section: Governing Equationsmentioning

confidence: 99%

“…Since the influence of area density, S P , on the load-carrying performance is already published [20], this paper will report typical results for only S P = 15.3%. Figure 3 shows the effects of texture depth, h p , on the load-carrying force, W, gas film stiffness, K, and gas leakage, Q.…”

Section: Seal Performance At Different Texture Depthsmentioning

confidence: 99%

“…The selection of surface texture patterns is the first problem of surface texturing design for mechanical seals. In a previous paper [20], we numerically compared the load-carrying performance of mechanical gas seals textured with microgrooves and microdimples. The results showed that different texture patterns achieved optimal load-carrying performance at different area densities.…”

Section: Introductionmentioning

confidence: 99%

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Comparative research on gas seal performance textured with microgrooves and microdimples

Shi

Zhang

Chen

et al. 2019

J Braz. Soc. Mech. Sci. Eng.

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The purpose of this paper is to compare the effects of different surface texture patterns on the performance of mechanical gas seals. Firstly, two types of surface texture, i.e., the patterns of microgrooves and microdimples, are constructed, and the steady-state Reynolds equation for compressible Newtonian fluid is employed and solved considering the collective effect of adjacent textures. Then, comparative analysis of different seal parameters such as the load-carrying force, gas film stiffness and gas leakage between microgrooves and microdimples is presented. Finally, two property-evaluating parameters are defined and different texture shapes and main parameters are compared. The results indicate that texture shapes with a straight edge perform better performance than those with a round edge. Furthermore, microgrooves 2 interpenetrating high-pressure side with texture depth of 3 µm may be the best choice in engineering practice, especially under small seal clearance and high rotation speed conditions.

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“…As advised in Ref. [14,20], regional texture containing several columns is adopted in this paper to investigate the collective effect of adjacent textures.…”

Section: Governing Equationsmentioning

confidence: 99%

Section: Governing Equationsmentioning

confidence: 99%

Section: Seal Performance At Different Texture Depthsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Comparative research on gas seal performance textured with microgrooves and microdimples

Shi

Zhang

Chen

et al. 2019

J Braz. Soc. Mech. Sci. Eng.

Self Cite

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“…Further study extended for conical shape journal bearing along with ellipsoidal shape dimples texturing on bearing surface and enhanced the performance of bearing system. Shi et al [16] investigated the influence of microdimples and microgrooves on the load-carrying performance of mechanical gas seals. They proved that both microgrooves and microdimples improve the load-carrying performance under a small clearance condition.…”

Section: Introductionmentioning

confidence: 99%

Parametric investigation of surface texturing on performance characteristics of water lubricated journal bearing using FSI approach

Shinde¹,

Chavan²

2019

SN Appl. Sci.

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In this paper, parametric analysis of various operating and surface texturing parameters on the performance characteristics of water lubricated journal bearing was carried out using Fluid Structure Interaction approach. Initially, a simulation model was validated with experimental results from the literature. An effect of journal speed and eccentricity ratio along with elastic deformation on performance characteristics viz. lubricant pressure, load carrying capacity, and coefficient of friction with different groove location was studied. Further investigation was carried out to examine the influence of the number of grooves on the performance characteristics. From the analysis, it was observed that 0-180° grooved journal bearing with 5 number of grooves has shown improved performance as compared to journal bearing with 0-90° grooved, 90-180° grooved and plain surface.

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Surface Texturing in Machine Elements − A Critical Discussion for Rolling and Sliding Contacts

Rosenkranz¹,

et al. 2019

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Surface texturing has gained great attention in the tribological community since precisely defined surface features can help to reduce friction and/or wear irrespective of the acting lubrication regime. The ability to positively influence tribological performance under different lubrication conditions makes surface texturing particularly interesting for machine elements since they may experience different conditions over the lifetime or sometimes even over one cycle/stroke. However, despite the great effort by both researchers and industry to introduce surface texturing in machine elements, many questions remain unclear regarding the optimal design of surface textures, as well as the positive and negative effects on the component's performance. The aim of this review article is to critically summarize the state of the art of surface texturing applied to machine elements, with a special emphasis on piston rings, seals, roller bearings, and gears. After a brief introduction, the first section focuses on surface texturing in sliding components (piston rings and seals), whereas the second section deals with surface texturing in rolling components (roller bearings and gears). Based upon the main evidence from the literature, the final section provides more general design guidelines for surface texturing in machine elements.

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Comparison of the Load-Carrying Performance of Mechanical Gas Seals Textured With Microgrooves and Microdimples

Cited by 39 publications

References 30 publications

Comparative research on gas seal performance textured with microgrooves and microdimples

Comparative research on gas seal performance textured with microgrooves and microdimples

Parametric investigation of surface texturing on performance characteristics of water lubricated journal bearing using FSI approach

Surface Texturing in Machine Elements − A Critical Discussion for Rolling and Sliding Contacts

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