In order to study the transient heat transfer characteristics of gear pump,a transient heat transfer model of gear pump was developed by multiple linear regression algorithm and the corresponding temperature prediction model was proposed to avoid the complicated modeling pro-cess.The step and cosine responses of the pump outlet temperature with a specific time interval were predicted.The results indicated that the average relative error between the simulation results and the experimental results is only 0.74％～1.67％.The heat transfer characteristics of the pump under the coupling change of temperature and flow were predicted and the error is less than 2.68％.The temperature step responses at different time intervals were predicted.The results showed that the model could predict the pump outlet temperature at each time well within a certain range.The method presented in this paper can improve the computational efficiency of heat transfer of drive components in thermal management system and provide some technical support for the actual engineering applications.
维普
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