Surrogate Vibration Modeling Approach for Design Optimization of Electric Machines
Surrogate Vibration Modeling Approach for Design Optimization of Electric Machines
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DOI：
10.1109/tte.2020.3017232
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发表时间：
2020-09-01
影响因子：
7
通讯作者：
Krishnamurthy, Mahesh
中科院分区：
文献类型：
--
作者：
Salameh, Mohamad;Singh, Suryadev;Krishnamurthy, Mahesh
本文提出了一种替代建模方法来预测电机设计中的振动行为。在识别和实施的代理模型中使用的方法允许在电机的多物理场几何优化中的代理模型的时间有效的集成，特别是在下降的情况下更换。根据最新技术水平的综述，仅考虑电机机架和支架，使用分析或数值技术不够准确、时效性和灵活性。所提出的方法使用的3-D有限元（FE）结构模拟识别的代理模型中的特征响应曲线，并不使用结构有限元模拟的优化循环。在6/10开关磁阻电机上进行了实验测试，以验证用于识别代理模型的3-D FE模型。有理分式多项式（RFP）的方法被用来拟合的振动脉冲响应的机器的几何形状定义的三个定子尺寸。可以使用RFP系数的线性插值来确定任何几何形状的脉冲响应。使用从FE电磁模拟确定的径向力，使用叠加确定变形。
This article presents a surrogate modeling approach to predict the vibrational behavior during electric machine design. The methodology used in identifying and implementing the surrogate model allows a time-efficient integration of the surrogate model in multiphysics geometric optimization of electric machines, especially in scenarios of drop-in replacement. Based on the state-of-the-art review, the use of analytical or numerical techniques alone considering motor frame and support are not adequately accurate, time efficient, and flexible. The proposed method uses the 3-D finite-element (FE) structural simulations for identifying characteristic response profiles in the surrogate model and does not use structural FE simulations in the optimization loop. Experimental tests are performed on a 6/10 switched reluctance machine to validate the 3-D FE model used to identify the surrogate model. The rational fraction polynomial (RFP) method is used to fit the vibration impulse responses for a number of machines geometries defined by three stator dimensions. The impulse response of any geometry can be determined using linear interpolation of the RFP coefficients. Using the radial forces determined from the FE electromagnetic simulation, the deformation is determined using superposition.