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Open AccessArticle

Parameter Equivalent Method of Stator Anisotropic Material Based on Modal Analysis

1
School of Mechanical Engineering, Tianjin University of Science and Technology, Tianjin 300222, China
2
Automotive Engineering Research Institute of China Automotive Technology and Research Center Co. Ltd., Tianjin 300300, China
3
School of Automotive Engineering, Hubei University of Automotive Technology, Shiyan 442002, China
*
Author to whom correspondence should be addressed.
Energies 2019, 12(22), 4257; https://doi.org/10.3390/en12224257
Received: 1 September 2019 / Revised: 28 October 2019 / Accepted: 1 November 2019 / Published: 8 November 2019
(This article belongs to the Special Issue Modeling, Simulation and Control of Electric Drive Systems)
Accurate calculation of the vibration mode and natural frequency of a motor stator is the basis for reducing motor noise and vibration. However, the stator core and winding material parameters are difficult to determine, posing issues which result in modal calculation bias. To address the problem of calibrating the stator material parameters, we developed a parameter correction method based on modal frequency. First, the stator system was simplified to build a stator system finite element model. Secondly, the relationship between modal frequency and material parameters was analyzed by finite element software, the relationship between modal frequency and material parameters was derived, and the anisotropic material parameter correction method was summarized. Finally, a modal experiment was carried out by the hammering method, and the simulation and experimental errors were within 3%, which verified the accuracy of the finite element model. The proposed correction method of anisotropic material can quickly determine the stator material parameters, and the stator core and winding anisotropic material can ensure the accuracy of the modal analysis. View Full-Text
Keywords: correction method of anisotropic material parameters; modal analysis; stator core; winding; modal experiments; finite element analysis correction method of anisotropic material parameters; modal analysis; stator core; winding; modal experiments; finite element analysis
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Zhang, Z.; Jiao, Z.; Xia, H.; Yao, Y. Parameter Equivalent Method of Stator Anisotropic Material Based on Modal Analysis. Energies 2019, 12, 4257.

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