دانلود مقاله ISI انگلیسی شماره 54076
عنوان فارسی مقاله

یک مدل المان محدود همراه مکانیکی 3D و مغناطیسی 2D برای مطالعه ارتعاشات پویا در استاتور موتورهای القایی

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
54076 2016 17 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
A 2D magnetic and 3D mechanical coupled finite element model for the study of the dynamic vibrations in the stator of induction motors
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Mechanical Systems and Signal Processing, Volumes 66–67, January 2016, Pages 640–656

کلمات کلیدی
مدل المان محدود؛ تانسور تنش ماکسول؛ موتور القایی؛ تبدیل فوریه 2D ؛ تجزیه و تحلیل جریان موتور؛ موج تعداد
پیش نمایش مقاله
پیش نمایش مقاله یک مدل المان محدود همراه مکانیکی 3D و مغناطیسی 2D برای مطالعه ارتعاشات پویا در استاتور موتورهای القایی

چکیده انگلیسی

This paper presents a coupled Finite Element Model in order to study the vibrations in induction motors under steady-state. The model utilizes a weak coupling strategy between both magnetic and elastodynamic fields on the structure. Firstly, the problem solves the magnetic vector potential in an axial cut and secondly the former solution is coupled to a three dimensional model of the stator. The coupling is performed using projection based algorithms between the computed magnetic solution and the three-dimensional mesh. The three-dimensional model of the stator includes both end-windings and end-shields in order to give a realistic picture of the motor. The present model is validated using two steps. Firstly, a modal analysis hammer test is used to validate the material characteristic of this complex structure and secondly an array of accelerometer sensors is used in order to study the rotating waves using multi-dimensional spectral techniques. The analysis of the radial vibrations presented in this paper firstly concludes that slot harmonic components are visible when the motor is loaded. Secondly, the multidimensional spectrum presents the most relevant mechanical waves on the stator such as the ones produced by the space harmonics or the saturation of the iron core. The direct retrieval of the wave-number in a multi-dimensional spectrum is able to show the internal current distribution in a non-intrusive way. Experimental results for healthy induction motors are showing mechanical imbalances in a multi-dimensional spectrum in a more straightforward form.

خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.