Multi-Parameter Optimization of Heat Dissipation Structure of Double Disk Magnetic Coupler Based on Orthogonal Experimental Design

The existing heat dissipation research on double disk magnetic couplers ignores the coupling influence of electromagnetic temperature–stress and other multiphysics fields, error between calculation analysis results measured values is large. Therefore, a multi-parameter optimization method for structures based orthogonal experimental design proposed. Based coupler model, three-dimensional finite element model fluid–solid–heat established, with axial air gap length, input motor speed, thickness permanent magnet in magnetizing direction, copper plate, number fins plate length as variables. Six-factor three-level simulation experiments are designed minimum temperature objective function, additionally, were according to actual working conditions by selecting optimal combination parameters modifying perform physical tests. show that variables have most significant impact performance from high low follows: plate. increase can effectively reduce rise, maximum decrease reach 9.76%. Under same conditions, speeds set 300 r/min, 400 500 600 r/min 700 respectively, good agreement test results, 4.8%. result only 1.9% under obtained experiment, which verifies correctness model. In conclusion, study reference significance parameter structure coupler.