The liquid cooling technology is used for driver board in an engine controller,so the simulation optimization design of heat dissipation performance and the mechanical property evaluation of the liquid cold plate are carried out in this paper.Firstly,an S-shaped flow channel design scheme is proposed based on the external structure of the liquid cold plate.Then the heat dissipation performance of the liquid cold plate is verified by simulation,and the flow channel structure is optimized based on the simulation results.The optimization results show that the maximum temperature difference on the liquid cold plate is reduced from 10.41 ℃ to 4.82 ℃,which meets the design requirement that the maximum temperature difference is not more than 5 ℃,and the heat dissipation performance is improved by 117%.Further evaluation of the mechanical performance of the liquid cold plate under a fluid inlet pressure of 10 MPa is performed.The maximum equivalent stress obtained from fluid-structure interaction simulation is 71.59 MPa,which is far lower than the 255 MPa yield strength of the aluminum alloy material of the liquid cold plate,which indicates that the mechanical structure is reliable.
维普
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