A Leakage Rate Model for Metal-to-Metal Seals Based on the Fractal Theory of Porous Medium

Liu, Yong; Du, Hao; Ren, Xinjiang; Li, Baichun; Qian, Junze; Yan, Fangchao

doi:10.3390/aerospace9120779

Cited by 3 publications

(2 citation statements)

References 52 publications

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“…The turning process is widely used in the manufacturing of flange surfaces, and these surfaces usually reveal spiral morphology [11,39]. Similarly, due to the difficulty of polishing a thin-walled cylindrical shell [40], the topography produced by the rough turning process is usually left on the ridge surface.…”

Section: Characterization Of the Sealing Surfacementioning

confidence: 99%

A Semi-Analytical Method for the Sealing Performance Prediction of Subsea Pipeline Compression Connector

Wang

Yao

et al. 2023

JMSE

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To predict the sealing performance of the subsea pipeline compression connector, a semi-analytical method is proposed and verified. The leakage condition is obtained as a function of the minimum radial deflection. The semi-analytical method consists of three parts: a macroscopic analytical model for the interference process deduced based on the membrane theory, a mesoscopic two-dimensional finite element analysis of the internally turned sealing surface according to scanning electron microscope observation, and a formulation of the leakage ratio according to the Abbott–Firestone curve. The influences of the geometry parameters are analyzed. The prediction and identification of the leakage condition near the minimum preloaded deflection are investigated. Experimental tests are also carried out to verify the proposed method. The results show that, within five times the pipeline threshold of the thin wall thickness, compression connectors designed by the proposed method can create a reliable seal with a rough internally turned surface, saving 57% of the design time while reducing the machining time and costs.

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Section: Characterization Of the Sealing Surfacementioning

confidence: 99%

A Semi-Analytical Method for the Sealing Performance Prediction of Subsea Pipeline Compression Connector

Wang

Yao

et al. 2023

JMSE

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“…Greater porosity is present in gasket surfaces with larger fractal dimensions [14]. In the article [15], a theoretical model for calculating metal-to-metal seal leakage rates is examined. This model is based on the fractal theory of porous media, which may accurately describe the impact of the sealing surface's topography from a microscopic viewpoint.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Development of an A1100 aluminum corrugated metal gaskets

Nurhadiyanto,

Mujiyono,

Ristadi

et al. 2023

EEJET

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Corrugated metal gaskets (CMG) made from SUS304 have previously been developed, however a coating process with a softer material is necessary for its design to be optimal. The coating process is time consuming and expensive. This research aims to develop CMG from aluminum by simulation analysis and form a CMG design made of aluminum A1100. The method used is development research. The optimum CMG thickness is analyzed using ANSYS Finite Element Analysis (FEA). The control variables being investigated are contact area and contact stress. The independent variable being investigated is the material thickness of CMG. An aluminum gasket is then constructed using a cold-forming process based on the optimum design. The control variables in the leak test are axial force and water pressure. Experiments were also carried out to test the aluminum gasket for leakage. A leakage test is carried out using a water pressure test. Simulation analysis showed results that were in line with experimental leak tests. FEA simulation results show that the optimum gasket thickness is between 3 and 5 mm, with 5 mm being the most optimal. However, CMG with thicknesses of 4 and 5 have similar contact stress and contact area. Leakage test results also show similarities with simulation results. CMG with a thickness of 5 mm has the best performance. The experimental results show that CMG made from aluminum A1100 is suitable for use as a gasket to prevent leakage, it prevents leakage at fluid pressure up to 12 MPa and axial force 100 kN. The results show that aluminum CMG performs on par with SUS304 CMG coated with nickel or copper. This research succeeded in developing CMG made of aluminum

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A unimodal soil-water characteristic curve model for gap-graded soil based on bimodal grain-size distribution and fractal theory

Wu,

Chen,

Pan

et al. 2025

Transportation Geotechnics

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A Leakage Rate Model for Metal-to-Metal Seals Based on the Fractal Theory of Porous Medium

Cited by 3 publications

References 52 publications

A Semi-Analytical Method for the Sealing Performance Prediction of Subsea Pipeline Compression Connector

A Semi-Analytical Method for the Sealing Performance Prediction of Subsea Pipeline Compression Connector

Development of an A1100 aluminum corrugated metal gaskets

A unimodal soil-water characteristic curve model for gap-graded soil based on bimodal grain-size distribution and fractal theory

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