A Novel Structure of Rubber Ring for Hydraulic Buffer Seal Based on Numerical Simulation

Lin, Zheshuai; Wei, Xiaohui

doi:10.3390/app11052036

Cited by 9 publications

(6 citation statements)

References 38 publications

(41 reference statements)

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“…The traditional sealing structure design is generally based on previous project experience, and the design efficiency is low and the effectiveness cannot be guaranteed. In recent years, finite element simulation analysis has been widely used in the research of sealing structures, which has greatly reduced the number of samples and related tests and shortened the product development cycle [31,32]. The material of the sealing ring used in this paper is Ethylene Propylene Diene Monomer (EDPM), which has the characteristics of low density and heat resistance and is a super-elastic material.…”

Section: Establishment Of Sealing Modelmentioning

confidence: 99%

Lightweight Type-IV Hydrogen Storage Vessel Boss Based on Optimal Sealing Structure

Shao,

Wang,

et al. 2024

WEVJ

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The seal and weight of the Type IV hydrogen storage vessel are the key problems restricting the safety and driving range of fuel cell vehicles. The boss, as a metal medium connecting the inner liner of the Type IV hydrogen storage vessel with the external pipeline, affects the sealing performance of the Type IV hydrogen storage vessel, and there is no academic research on the weight of the boss. Therefore, according to the force characteristics of the boss, this paper divides the upper and lower areas (valve column and plate). The valve column with seal optimization and light weight is manufactured with a 3D printing additive, while the plate bearing and transferring the internal pressure load is manufactured by forging. Firstly, a two-dimensional axisymmetric simulation model of the sealing ring was established, and the effects of different compression rates on its seal performance were analyzed. Then, the size and position of the sealing groove were sampled, simulated, and optimized based on the Latin Hypercube method, and the reliability of the optimal seal structure was verified by experiments. Finally, the Solid Isotropic Material with Penalization (SIMP) topology method was used to optimize the weight of the boss with optimal sealing structure, and the reconstructed model was checked and analyzed. The results show that the weight of the optimized boss is reduced by 9.6%.

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Section: Establishment Of Sealing Modelmentioning

confidence: 99%

Lightweight Type-IV Hydrogen Storage Vessel Boss Based on Optimal Sealing Structure

Shao,

Wang,

et al. 2024

WEVJ

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“…O-rings are widely used in the design of sealing systems for hydraulic and pneumatic machinery due to their high pressure resistance, reliable function, low price, simple manufacturing and simple installation requirements [ 15 , 16 ]. The hydraulic cylinder is a dynamic system with reciprocating motion.…”

Section: Introductionmentioning

confidence: 99%

Empirical research on the friction behavior of O-rings in hydraulic cylinders

Qin

et al. 2023

PLoS ONE

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Mechanical products are becoming more diversified with the continuous development of precision processing and materials technologies. The friction force generated by the O-ring seal in a hydraulic cylinder was once considered redundant. However, its utilization has recently been proposed. The hardness of the O-ring and the inner diameter of its groove directly affect the normal pressure between the O-ring and the inner wall of the cylinder, thereby affecting the friction behavior. In order to explore this friction behavior, a strain-based friction force measurement system is developed in this study, and the steady-state and dynamic friction values under different working conditions are studied and discussed in depth. This research on the friction behavior in the cylinder provides a theoretical basis for more convenient design and utilization of the friction force generated between the O-ring and the inner wall of the cylinder.

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“…Their research involved a thorough analysis of the influence of pressure, surface friction coefficient, and other factors on the sealing performance of U-rings. Zhang, L. et al [17] proposed a butterfly rubber ring seal as a solution to address the issue of seal failure on the groove side of the rubber ring in static sealing structures, offering an innovative approach to improve sealing reliability. Kim, B. et al [5] explored the effects of sealing pressure, motion speed, and ambient temperature on the sealing performance and friction of U-rings in static seal structures.…”

Section: Introductionmentioning

confidence: 99%

Research on Dynamic Sealing Performance of Combined Sealing Structure under Extreme Working Conditions

Zheng,

Xiao,

et al. 2023

Applied Sciences

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This study investigates the sealing performance of a combined sealing structure under extremely high and low temperature conditions, considering potential issues like high-temperature aging and low-temperature brittle fracture, which can lead to sealing failure. EPDM rubber underwent uniaxial compression tests at high, low, and normal temperatures, then the sealing performance under extreme working conditions was compared with that under normal temperature conditions. Additionally, the influences of gasket parameters and gas pressure on the sealing performance were analyzed. The result shows that compared with the normal temperature conditions, the maximum von Mises stress is reduced by 65% and the effective sealing length and the maximum contact pressure is reduced by 40% under the high temperature conditions, while the maximum von Mises stress is increased by 7 times and the maximum contact pressure is increased by a remarkable 7 times under the low temperature conditions. In the range of 10–100 MPa, the increase in gas pressure aggravates the O-ring stress concentration and improves the sealing performance relatively. When the thickness of gasket is 0.85–1.05 mm, the stress concentration of the O-ring is lighter and the sealing performance is better.

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A Novel Structure of Rubber Ring for Hydraulic Buffer Seal Based on Numerical Simulation

Cited by 9 publications

References 38 publications

Lightweight Type-IV Hydrogen Storage Vessel Boss Based on Optimal Sealing Structure

Lightweight Type-IV Hydrogen Storage Vessel Boss Based on Optimal Sealing Structure

Empirical research on the friction behavior of O-rings in hydraulic cylinders

Research on Dynamic Sealing Performance of Combined Sealing Structure under Extreme Working Conditions

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