Finite element modeling on local hot banding of sealing ring

A finite element method was presented to investigate local hot banding for sealing rings in a wet clutch. A discrete model of the sealing pair was established, and the critical speed of hot banding was obtained by numerical computation. The relationships between the critical speed and the frictional coefficient, elastic modulus, thermal conductivity, thermal expansion coefficient, and sealing ring size were determined. Experimental investigations were performed using a seal test rig, with comparisons of the calculated and experimental critical speed results made to enable an assessment of the proposed method's accuracy. The numerical and experimental results indicate the effectiveness of the finite element discrete model in simulating the hot banding of sealing rings.