Degradation and Fatigue of Epoxy Impregnated Traction Motors Due to Thermal and Thermal Induced Mechanical Stress : Part I: Thermal Mechanical Simulation of Single Wire due to Evenly Distributed Temperature
Degradation and Fatigue of Epoxy Impregnated Traction Motors Due to Thermal and Thermal Induced Mechanical Stress : Part I: Thermal Mechanical Simulation of Single Wire due to Evenly Distributed Temperature
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由于热和热感应机械应力导致的环氧树脂浸渍牵引电机的退化和疲劳：第一部分：均匀分布温度导致的单线热机械模拟
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
M. Alaküla
中科院分区：
文献类型：
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作者：
Zhe Huang;A. Reinap;M. Alaküla
这项工作的重点是表征漆包线由于热膨胀而产生的机械应力和疲劳。对单根钢丝的应力和疲劳进行了估计，并作为均匀分布的温度的函数。估算基于解析方程和三维有限元(FE)模型。机械应力和疲劳的这种表征然后被用来检验基于机动试件上测量的热负荷的加速试验的结果。这项工作的结果不仅是检测出绝缘故障的原因，而且为牵引电机设计者提供了有用的提示。
The focus of this work is to characterize the mechanical stresses and fatigue along the enameled wire due to thermal expansion. The stresses and fatigue is estimated for a single wire and as a function of evenly distributed temperature. The estimation is based on both analytical equations and 3D Finite Element (FE) model. This characterization of mechanical stresses and fatigue is then used to examine the outcome of the accelerated test based on the measured thermal loads on the motorette specimen. The outcome of this work is not only to detect the cause of insulation failure but also provide useful hints for the traction motor designers.