Shaft roughness effect on elasto-hydrodynamic lubrication of rotary lip seals: Experimentation and numerical simulation

Effect of grooved shaft on the rotary lip seal performance in transient condition: Elasto-hydrodynamic simulations

“…The resolution approach of the current model is similar to that previously performed by Elgadari et al [9]. The differences between this proposed study and Jia's model [7,8] include three parts.…”

“…The theoretical analysis is similar to the one used in [9]. The modified Reynolds equation proposed is used in order to take into account both active and non-active film zones: Garter Spring…”

“…As shown in references [9,10], the boundary conditions used for the solution of eq. (1) are reduced to outside boundaries of the domain: at "y = 0", "p" is equal to the sealed fluid pressure, where "b" is the width of the contact, and at "y = b", "p" is equal to the air pressure.…”

“…The mechanical analysis performed in "Abaqus" is similar to that presented in reference [9]. It simulates the rotary lip seal assembly in dry conditions by considering a shaft radius R=40 mm.…”

“…The differences between this proposed study and Jia's model [7,8] include three parts. Firstly, the finite element method was used to discretize the Reynolds equation as described in [9,10] instead of volume finite technique used in [7,8]. Secondly, the tridimensional mechanical behaviour of the lip was considered to compute the lip elastic response [11], instead of the two-dimension axisymmetric analysis used by Jia's model.…”