Abstract
In this paper, the thermal resistance method is used to model and calculate the equivalent thermal network of the temperature distribution at the bearing of the swive under low temperature conditions, and the rationality of the model is verified by the finite element analysis software. The effect of the cavity size on the raceway temperature of the swive is further analyzed by using the equivalent thermal network model. The results show that the temperature of the raceway of the swive increases linearly with the increase of the circumferential size of the cavity, and increases exponentially with the increase of the height of the cavity. The temperature at the raceway can reach -140°C when LNG is transported in a steady state. Special consideration should be given to the influence of low temperature when selecting raceway materials.
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