Fretting behavior of static metal seal and testing apparatus for fretting friction with low/high temperature

Zhang, Dawei; Yang, G.-J.; Lv, Shanshan; Tian, Chong; Li, Zhijun

doi:10.1016/j.triboint.2023.108676

Cited by 6 publications

(1 citation statement)

References 29 publications

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“…In hydraulic systems, many outstanding academic achievements exist regarding the static sealing characteristics of seal rings, including research on the groove structure parameters of the seal ring, the failure criteria, deformation analysis under compression, distribution of static contact force, and reliability analysis [4][5][6]. However, fewer studies have been conducted on the dynamic sealing characteristics of Orings, especially those that undergo high-speed reciprocating movement.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic and Sealing Performance Analysis of Reciprocating O-Rings in Hydraulic Cylinders

Tao

2023

IJHT

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In mechanical engineering practice, the service life and sealing performance of equipment are inextricably linked to the performance of O-ring rubber seals. Moreover, thermodynamic factors play a significant role in the performance of these sealing rings, especially in the high-speed reciprocating motion of hydraulic cylinders. Consequently, an integration of thermodynamic factors into the performance analysis of O-rings is necessary. Using a specific type of O-ring in a hydraulic cylinder as an example, the mechanical properties of the rubber material are characterized through the Mooney-Rivlin model determined by the finite element method and experimental methods, thereby deriving material parameters. Concurrently, an analysis was conducted on how thermodynamic factors like temperature changes, heat conduction, and thermal expansion influence sealing performance. Subsequently, a finite element model of the O-ring seal was established, and a simulation analysis was performed on the mechanical and thermodynamic behaviors of the reciprocating O-ring seal in a hydraulic cylinder under varying temperature and pressure conditions. Lastly, the impact of different compression rates, friction coefficients, and working oil pressures on maximum Von Mises stress and contact stress were investigated, thus providing a theoretical basis for the thermodynamic performance analysis and structural optimization design of O-ring rubber seals.

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Section: Introductionmentioning

confidence: 99%