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| Integrated Design and Optimization of Electromechanical Structure of Permanent Magnet Piston Mechanical Power Engine |
| DOI：10.13949/j.cnki.nrjgc.2021.06.007 |
| Key Words:engine linear motor multi-objective design optimization integration design three-dimensional finite element model |
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| Abstract:In order to optimize the electrodynamic structure of a permanent magnet piston mechanical electric engine, a three dimensional finite element model of its working process was established based on the analysis of the structure principle, and the experimental verification was carried out. Aiming at maximizing the output current and minimizing the loss, the design optimization model of the electrodynamic structure was established. Based on the ISIGHT optimization design framework integrating the 3D finite element model under ANSOFT Maxwell, the NSGA-Ⅱ genetic algorithm was used for multi objective design optimization of the electrodynamic structure. The results show that the output current and loss values of the electrodynamic structure are influenced by several dimensions, among which the size of the kinematic permanent magnet has the greatest influence, and there is an optimal value. After optimization, the effective value of no load potential is 11.28V, which is increased by 27.75%. The effective value of current is 0.80A, which is increased by 26.98%. The effective value of electromagnetic force is 10.98N, which is increased by 19.14%. And the effective value of loss is 4.17W, which is decreased by 41.10%. The engine performance is significantly improved, verifying the effectiveness of the optimization method. |
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