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The ANSYS finite element software is introduced to simulate the cooling efficiency and thermal conductivity of the internal structure of the roll to study the influence of cooling water temperature, flow rate and aluminum melt on the roll temperature field and thermal conductivity. The research results show that in the process of casting and rolling, the aluminum melt is in contact with the rolls in the casting and rolling area, where the maximum temperature of the rolls is 520 °C. The temperature of the roll is gradually reduced to 40 °C, and then the roll continues to rotate until it enters the casting and rolling area, and the cycle is repeated. The reduction of the cooling water temperature could not significantly improve the roll temperature field. The increase of the cooling water flow rate can reduce the temperature field of the cooling water channel in the roll core. The temperature of aluminum melt at the exit of the casting nozzle can significantly increase the temperature field of the roll and the rolling temperature of the aluminum melt at the center of the roll gap, but it does not affect the temperature distribution at the exit of the roll gap after the aluminum melt is cooled by the roll. [ABSTRACT FROM AUTHOR]

With the rapid development of wind power industry, people pay more attention to the fatigue life prediction of wind turbine components. In this paper, the contact load and maximum contact stress of double row tapered roller bearing are calculated, and the distribution law of contact load is analyzed. The maximum contact load rolling element/raceway contact model is established by using ANSYS Workbench, and the static calculation is completed. The maximum contact stress calculated by theory is compared with the maximum contact stress obtained by simulation. The stress fatigue life was predicted by n Code. The results show that the maximum contact load on the left side is greater than that on the right side, and the maximum contact load occurs at the contact between the first roller and the outer ring with zero contact angle on the left side; the error between the theoretical calculation and simulation results of the maximum contact stress is 5.7%; the error between the theoretical calculation result and the simulation analysis result is 0.69%, which verifies the correctness and feasibility of the simulation method and model Line. The maximum contact stress and the location of fatigue failure can be observed through numerical simulation analysis, which provides reference for bearing design in practical engineering, plays a role of optimization design, and has a certain guiding significance for experiments. [ABSTRACT FROM AUTHOR]