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Reciprocating seals are key components that affect the safety and reliability of hydraulic systems. This paper establishes a thermo-elastohydrodynamic (TEHD) model of Glyd-ring combined seals and reveals the macro and micro characteristics in a wide temperature range. Specifically, the TEHD model considers the changes in material and hydraulic oil parameters with temperature, and the parameter values at different temperatures are obtained through actual measurements. During the iterative calculation process of the TEHD model, parameters such as seal size, material, and hydraulic oil are constantly updated according to temperature changes. This paper also proposes a method to optimize the sealing performance of Glyd-ring seals by reducing the root mean square roughness.

Macro and Micro Characteristics of Glyd-ring Seals in a Wide Temperature Range