کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9709179 | 1466796 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dynamic behaviour investigation of electromagnetic force densities
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The present paper deals with the electromagnetic forces due to the rotatory magnetic field in an alternating current machine. The time dependent pulsations of the elliptic force density field are investigated. Applying the method of Maxwell stress the distribution of the electromagnetic force densities is studied in theoretical aspect at first. A factor is defined for a numerical valuation of dynamic force density behaviour in a period. As a numerical example the electromagnetic force density field is considered in the end region of 200Â MW turbine-generator. The calculations are made using FEM. On the basis of the defined factor the dynamic loads rate is estimated and the relevant conclusions are drawn with respect to the critical regimes and the critically loaded parts of the device. It is shown that the approach based on the local electromagnetic forces studying could to be used in detailed analysis and computer aided design.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 161, Issues 1â2, 10 April 2005, Pages 258-262
Journal: Journal of Materials Processing Technology - Volume 161, Issues 1â2, 10 April 2005, Pages 258-262
نویسندگان
R. Stancheva, I. Iatcheva,