Magnetism and Solid Coupling Vibration of Stator Double-Shell System of Asynchronous Machine
The electromagnetic force produced by air-gap eccentricity magnetic field includes kinds of frequencies, and excites multiform magnetism and solid coupling vibrations of stator system. In this paper, based on the improved model of double-shell system of asynchronous machine, the magnetism and solid coupling vibration equations of double-shell system are obtained. Considering the air-gap eccentricity, an improved expression of electromagnetic force is derived. Then the method of multiple scales is applied to solve the nonlinear parametric resonance. Through the numerical calculation, the influence of electromagnetic and mechanic parameters on amplitude- frequency characteristics is analyzed.
Ching Kuo Wang and Jing Guo
B. Z. Li and J. J. Qiu, "Magnetism and Solid Coupling Vibration of Stator Double-Shell System of Asynchronous Machine", Applied Mechanics and Materials, Vols. 300-301, pp. 1193-1199, 2013