Resonance frequencies of electrical machine stators having encased construction, part II: Numerical results and experimental verification

IEEE Transactions on Power Apparatus and Systems

Volumn PAS-92, Issue 5, 1973, Pages 1586-1593

  Verma, S P ^a   Girgis, R S ^a  

^a UNIVERSITY OF SASKATCHEWAN   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0005115037     PISSN: 00189510     EISSN: None     Source Type: Journal    
DOI: 10.1109/TPAS.1973.293705     Document Type: Article

References (13)

1. Verma, S.P. and Girgis, R.S., “Resonance frequencies of electrical machine stators having encased construction, Part I: Derivation of the general frequency equation”, companion paper.
2. Erdelyi, E., “Predetermination of sound-pressure levels of magnetic noise of polyphase-induction motors”, AIEE Trans. Power Apparatus and Systems, Vol. 74, 1955, pp. 1269–1280.
3. Erdelyi, E. and Horvay, G., “Vibration modes of stators of induction motors”, ASME Trans., [E], Vol. 24, 1957, pp. 39–45.
4. Ellison, A. and Yang, S., “Natural frequencies of stators of small electric machines”, Proc. IEE, Vol. 118, No. 1, January 1971, pp. 185–190.
5. Jordan, H., Purkermani, M., Raube, W. and Röder, G., “The effect of a thin frame on the magnetic noise of polyphase machines” (in German), Lärmbekämpfung, August 1970, pp. 81–87.
6. Frohne, H., “On the main parameters which determine the noise-level of asynchronous machines” (in German), Doctoral Thesis, Technical University of Hannover, W. Germany, 1959.
7. Bölderl, P., “On the determination of vibrations of the stator of turbogenerators, produced by air-gap fields” (in German), Doctoral Thesis, Technical University of Hannover, W. Germany, 1965.
8. Krondl, M., “The parasitic forces in induction motors” (in German), Bulletin Oerlikon, Vol. 24, 1931, pp. 654–656 and Vol. 25, 1931, pp. 665–668.
9. Forsberg, K., “Influence of boundary conditions on the modal characteristics of thin cylindrical shells”, AIAA journal, Vol. 2, No. 12, December 164, pp. 2150–2157.
10. Gazis, D.C., “Three dimensional investigation of the propagation of waves in hollow circular cylinders”, J. Acous. Soc. Amer., Vol. 31, No. 5, May 1959, pp. 568–578.
11. Baltrukonis, J., Chi, M. and Gottenberg, W., “Free transverse vibrations in an infinitely-long layered elastic cylinder”, TR-3, Catholic University of America, Nasa Research Grant NsG-125–61, Suppl. 1-62, 33 pages.
12. Lorenzen, H.W., “Electromagnetic noise in synchronous and asynchronous machines” (in German), ETZ-Fachbericht 1967 — Versammlung Bremen, pp. 216–232.
13. Flügge, W., “Stresses in shells” (Springer-Verlag, Berlin, 1960), Chapter 5, pp. 219 and 233.