Abstract
As a basic mechanical component, the sealing ring is widely used in industrial, aerospatial, and other fields. In this study, an elastic metal C-shaped sealing ring with a wave structure was taken as an example, and its performance was analyzed theoretically and measured experimentally. First, an experimental study was performed on the C-ring seal. The proposed method for experimental measurement of the contact stress of the C-ring seal involved innovative use of a universal electronic testing machine and pressure sensitive paper, in conjunction with the hue–saturation–brightness (HSB) method. Based on the discoloration of the pressure sensitive paper after contact stress, computer software was used for analysis, the discoloration was digitized, and the contact stress was established. Second, a theoretical calculation model of the C-ring seal was established using ANSYS software, and a finite element theoretical calculation of the mechanical properties of the sealing ring was established. Finally, the contact stress results were compared with the model calculation results of the C-ring seal. The error between the two was small (4.8%), which proved the validity of the calculation model and the scientificity of the experimental method.
Highlights
Seals are key infrastructure components in many high-tech fields, including the aerospace and ergonomics industries [1,2]
When a C-shaped sealing ring is in operation, its opening tends to face the high pressure of the sealing gas, which means C-ring seals have excellent self-tightening capability
The contact stress of a C-ring seal was measured through innovative application of
Summary
Seals are key infrastructure components in many high-tech fields, including the aerospace and ergonomics industries [1,2]. In terms of performance research, Polycarpou [4] studied the contact width law of a C-ring and flange, and Metals 2018, 8, 942 calculated the leakage of a C-ring seal using the GW model. Established a 3-dimensional operatingthe temperature, pressure, flange Jia eccentricity, surface roughness, penetration, simulation model a spring-enhanced sealing ring, and[7]. They performed in-depthsealing study and reuse on the of amount of leakage. Of the sealing excellent performance of by JETSEAL has applied for a to number of technical and it has commercialized types elastic metal seals, in addition the aerospace field,patents the technology has been usedvarious widely in the of elasticchemical, metal sealing ring with various cross-sectional shapes. Measurements, validating the feasibility and scientificity of the proposed experimental method
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