2015 Fiscal Year Final Research Report
Development of Emergent Topology Optimization Method to Realize the Motor Structured by Soft-Magnetic Core with High Efficiency
| Project/Area Number |
25820099
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Power engineering/Power conversion/Electric machinery
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| Research Institution | Hosei University (2015)
Utsunomiya University (2013-2014) |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | トポロジー最適化 / 高速大規模電磁界解析 / 感度解析 / 随伴変数法 / レベルセット関数 / 並列計算 / 電気機器工学 |
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| Outline of Final Research Achievements |
To design the motor with high efficiency, 3-D topology optimization tool is investigated. Especially, two topics; enhancement of practicability of the converged solution derived from topology optimization and speedup of optimization were strongly focused.
Regarding the enhancement of practicability of the converged solution, the level-set-function-based method was successfully developed in the nonlinear magnetostatic field. As a result, the outline of converged topology was drastically modified in comparison to the topology derived from the evolutionary algorithm or material-density-based method.
To realize further speedup, the linear solver for the linear algebra obtained from the finite element method was improved by the introduction of the multicolor ordering.Resultant elapsed time was reduced to less than one third of the performance of the conventional ICCG method.
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| Free Research Field |
計算電磁気学
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