Tribological aspects of dynamic seals with O-rings used in aircraft hydraulic equipment
Journal Title: INCAS BULLETIN - Year 2019, Vol 11, Issue 2
Abstract
Depending on the operating parameters, a dynamic sealing system with O-rings can be in different friction modes: dry, limit, mixed or fluid. Modification of the friction mode occurs throughout the operating life, but also in a single working cycle, as a result working parameters variation: variation in speed of the mobile part of the hydraulic equipment from zero (at start and at reversal of the movement sense) to a maximum value, specific to each application; the fluctuation of the viscosity of the hydraulic fluid according to the pressure and the working temperature; variation of the contact pressures between the sealing ring and the sealing surfaces, depending on the pressure and the temperature of the sealed environment.
Authors and Affiliations
Ilie NICOLIN, Bogdan Adrian NICOLIN
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