caa a22 4500 465750826 CHVBK 20180323111833.0 cr unu---uuuuu 170327e19900901xx s 000 0 eng 10.1007/BF02322822 doi (NATIONALLICENCE)springer-10.1007/BF02322822 The effect of windings, frame and impregnation upon the resonant frequencies and vibrational behavior of an electrical machine stator [Elektronische Daten] [R. Singal, K. Williams, S. Verma] In order to design a quiet electrical machine, an accurate determination of the resonant frequencies and vibrational characteristics of the stator is essential. This paper presents both a fundamental theoretical and experimental study which is designed to explore the manner in which the values of the resonant frequencies and vibrational behavior of a stator are affected by the presence of the windings, frame, and impregnation. Following a brief description of the method of analysis for the free vibrations of stators of encased construction, which is an energy method based on the theory of elasticity, details of the various models are given. It is found that the effects of both the windings and the frame are in general predictable and beneficial in so far as they tend to suppress the magnitude of the resonant amplitudes. Impregnation, however, has the opposite effect on these amplitudes but is found to play a desirable role in so far as it helps to eliminate unwanted parasitic resonances from the frequency spectrum. Society for Experimental Mechanics, Inc., 1990 Singal R. Canadian Space Agency, P.O. Box 11490, K2H 8S2, Station H, Ottawa, Canada aut Williams K. Department of Mechanical Engineering, University of Saskatchewan, S7N 0W0, Saskatoon, Saskatchewan, Canada aut Verma S. Department of Electrical Engineering, University of Saskatchewan, S7N 0W0, Saskatoon, Saskatchewan, Canada aut Experimental Mechanics Kluwer Academic Publishers 30/3(1990-09-01), 270-280 0014-4851 30:3<270 1990 30 11340 https://doi.org/10.1007/BF02322822 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02322822 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Singal R. Canadian Space Agency, P.O. Box 11490, K2H 8S2, Station H, Ottawa, Canada aut NATIONALLICENCE 700 1- Williams K. Department of Mechanical Engineering, University of Saskatchewan, S7N 0W0, Saskatoon, Saskatchewan, Canada aut NATIONALLICENCE 700 1- Verma S. Department of Electrical Engineering, University of Saskatchewan, S7N 0W0, Saskatoon, Saskatchewan, Canada aut NATIONALLICENCE 773 0- Experimental Mechanics Kluwer Academic Publishers 30/3(1990-09-01), 270-280 0014-4851 30:3<270 1990 30 11340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer