Numerical and Experimental Study of The Viscous Dissipation of Oil inside the Electric Motor’s Gap

A. M. Teamah, Mohamed S. Hamned
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引用次数: 0

Abstract

– A numerical study has been carried out to quantify the level of viscous dissipation inside an electrical motor. The study has been performed using an in-house computational model. This paper presents the effect of several geometrical and operating parameters on the level of viscous dissipation generated within the stator-rotor gap. The geometrical parameters considered in this study are the gap size, rotor length and the stator inner diameter, varied in the range of 0.25-1.4 mm, 140-1120 mm and 55-375 mm, respectively. The operating parameter considered in this study is the rotor rotational speed and oil level, which was varied in the range of 900-3600 rpm and 50-100 %, respectively. The numerical results have been validated using experimental data. Results indicated that the amount of heat generated due to viscous dissipation is directly proportional to the stator diameter and rotor rotational speed, and inversely proportional to the gap thickness.
电动机间隙内油液粘性耗散的数值与实验研究
-进行了一项数值研究,以量化电机内部的粘性耗散水平。这项研究是使用内部计算模型进行的。本文介绍了几种几何参数和工作参数对定转子间隙内产生的粘滞耗散水平的影响。本文考虑的几何参数为间隙大小、转子长度和定子内径,分别为0.25 ~ 1.4 mm、140 ~ 1120 mm和55 ~ 375 mm。本研究考虑的运行参数为转子转速和油位,分别在900-3600 rpm和50- 100%范围内变化。用实验数据对数值计算结果进行了验证。结果表明,粘性耗散产生的热量与定子直径和转子转速成正比,与间隙厚度成反比。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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