Applied Mathematics and Mechanics (English Edition) ›› 1994, Vol. 15 ›› Issue (1): 7-12.
程友良1, 戴世强2
Cheng You-liang1, Dai Shi-qiang2
摘要: In the present paper,we investigate a class of nonlinear oscillation equations inelectrical engineering by using the modified Krylov-Bogolyubov method presentedin[1]. We obtain quantitatively ihe parameier range for the existence of a limit cycleand the amplitude of the limit cycle,and find that the limit cycle is unstable. All theresults agree entirely with the known results given by qualitative analysis, and henceconfirm the effectiveness of the above-mentioned asymptotic method