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非晶变压器的磁致伸缩特性与振动噪声分析
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Abstract:
为了研究非晶合金变压器中的磁致伸缩特性，本文首先对非晶合金带材进行了磁特性与磁致伸缩特性的测量，建立了一个非晶合金磁致伸缩预测模型。然后在非晶合金的磁特性与磁致伸缩特性的测量数据的基础上，建立一个非晶合金变压器的有限元模型，并进行了多物理场分析。通过搭建不同频率下的非晶合金变压器的磁致伸缩测量实验，对不同频率下的磁特性与磁致伸缩特性进行分析，并根据测量结果建立非晶合金数值模型进行振动噪声分析。将测量结果与模型计算结果进行对比，论证了磁致伸缩预测模型的准确性。
In order to study the magnetostrictive characteristics of amorphous alloy transformer, in this paper, the magnetic characteristics and magnetostrictive characteristics of amorphous alloy strip were measured firstly, and a prediction model for the magnetostrictive properties of amorphous alloy was established. Based on the measured data of magnetic and magnetostrictive characteristics of amorphous alloy, a finite element model of amorphous alloy transformer is established, and multi-physical field analysis is carried out. By building the magnetostrictive measurement experiments of amorphous alloy transformers at different frequencies, the magnetic characteristics and magnetostrictive characteristics at different frequencies were analyzed, and according to the measurement results, the numerical model of amorphous alloy was established for vibration and noise analysis. The accuracy of the magnetostriction prediction model is proved by comparing the measured results with the model calculation results.
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