Numerical Calculation and Experimental Research on the Slip of Silicone Oil Fan Clutch

In the existing literature concerning the calculation of the output speed of the silicone oil fan clutch and the silicone oil temperature, the theoretical calculation method is all adopted to establish the calculation formulas of moment transmission and silicone oil shear viscous heat by extracting the structural parameters of the clutch model, in order to solve the output speed and silicone oil temperature of the clutch under stable working state. At present, CFD (Computational Fluid Dynamics) numerical simulation method has not been used to solve the problem. In this paper, the CFD simulation method is used for the first time. Considering the change of silicone oil viscosity with temperature, a double-sided slot silicone oil fan clutch was taken as the research object to established the CFD simulation model of hydro-viscous drive to solve the clutch output speed and silicone oil temperature. At the same time, the theoretical calculation method is also adopted, and a clutch test bed is set up to compare the simulation calculation results with the theoretical calculation results and the experimental results. The simulation results are in good agreement with the experimental results and theoretical calculation results, which verifies the correctness of the CFD simulation model.