Magnetic Power Loss Characteristics of Non-oriented Electrical Steel Sheets under Stress
Magnetic Power Loss Characteristics of Non-oriented Electrical Steel Sheets under Stress
复制标题
无取向电工钢板应力下的磁功率损耗特性
DOI：
10.3379/jmsjmag.30.196
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发表时间：
2006
影响因子：
--
通讯作者：
Y. Toide
中科院分区：
文献类型：
--
作者：
Y. Tani;A. Daikoku;M. Nakano;H. Arita;S. Yamaguchi;Y. Toide
通过将定子安装在框架中而作用在铁芯上的应力影响电动机的性能。为了在设备设计中反映这种影响，对作为芯材的无取向电工钢的磁性能的应力依赖性进行了研究。这次，对于厚度为0.5mm的高级无取向电工钢板，评价了±225 MPa范围内的磁功率损耗的应力依赖性，并获得了以下结果。(1)压缩应力对磁功率损耗的影响大于拉伸应力。随着压缩应力的增加，损耗迅速增加。然而，当应力超过-50MPa时，损耗的饱和趋势逐渐变强。(2)应力对磁功率损耗的影响在轧制方向和横向上是不同的。(3)在压缩应力下发生的较大的磁功率损耗主要是由于磁滞损耗的增加，并且涡电流损耗也略微增加。据认为，这种随着压缩应力而发生的涡流损耗的轻微增加取决于异常损耗的变化。
The stress that acts on the core by installing a stator in a frame influences the performance of a motor. To reflect this influence in the equipment design, the stress dependence of the magnetic property was examined for non-oriented electrical steels, which are the core materials. This time, the stress dependence of the magnetic power loss in the range of ±225 MPa was evaluated for high-grade non-oriented electrical steel sheets of 0.5 mm thickness, and the following results were obtained. (1) The influence on the magnetic power loss is larger under compression than under tensile stress. The loss increases rapidly with an increase in the compressive stress. However, when the stress exceeds -50 MPa, the saturation tendency of the loss gradually becomes strong. (2) The influence of the stress on the magnetic power loss is different in the rolling direction and the traverse direction. (3) A greater magnetic power loss that occurs with compressive stress is mainly due to an increase in hysteresis loss, and the eddy current loss also increases slightly. It is thought that this slight increase in the eddy current loss that occurs with compressive stress depends on the change in the anomalous loss.