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Reducing Development Time of Electric Machines with SyMSpace

机译：使用SyMSpace减少电机的开发时间

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This paper presents methods to accelerate the optimization of electrical machines using the software tool SyMSpace. Due to the nonlinear properties of soft magnetic materials, finite element analysis (FEA) is typically used for the simulation of electrical machines. For a complete optimization run hundreds to several thousand FEA calculations are required, which are computationally very expensive. Simple measures such as consideration of symmetries in the geometry to more sophisticated techniques like generation of a surrogate motor model can easily achieve a significant reduction in the calculation effort. By means of novel optimization algorithms specially designed for electrical machines, it is possible to achieve faster convergence of the Pareto front. To further speed-up the optimization a nonlinear mapping between the optimization variables and objectives based on artificial neural networks (ANNs) is derived during the optimization run to cut down the simulation time significantly. Once the optimization has converged, the most suitable machine for the particular application can be selected from the Paret front for further detailed analysis. For example, it is possible to generate an accurate motor model for further dynamic simulations in the form of a functional mock-up unit (FMU). Additionally, it is also possible to create data files for rapid prototyping fully automatically. This comprises, for example, data files for laser cutting, STL files for 3D printing of insulation parts and generation of program code for a needle winding machine.
机译：本文介绍了使用软件工具SyMSpace加速电机优化的方法。由于软磁材料的非线性特性，通常使用有限元分析（FEA）来模拟电机。为了进行完整的优化，需要进行数百至数千个FEA计算，这在计算上非常昂贵。简单的测量方法，例如考虑几何形状中的对称性到更复杂的技术（例如替代电动机模型的生成），可以轻松地显着减少计算工作量。通过专门为电机设计的新颖优化算法，可以更快地收敛帕累托前沿。为了进一步加快优化速度，在优化过程中基于人工神经网络（ANN）得出了优化变量和目标之间的非线性映射，从而显着减少了仿真时间。一旦优化收敛，就可以从Paret前端选择最适合特定应用的机器，以进行进一步的详细分析。例如，可以以功能模型单元（FMU）的形式为进一步的动态仿真生成精确的电机模型。此外，还可以完全自动地创建用于快速原型制作的数据文件。例如，这包括用于激光切割的数据文件，用于绝缘零件的3D打印的STL文件以及用于针式绕线机的程序代码的生成。

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