Applied Mathematics and Mechanics (English Edition) ›› 2000, Vol. 21 ›› Issue (10): 1153-1160.
唐驾时
TANG Jia-shi
摘要: A new parameter transformation α=α(ε, nω0/m, ω1) was defined for extending the applicable range of the modified Lindstedt-Poincaré method. It is suitable for determining subharmonic and ultraharmonic resonance solutions of strongly nonlinear systems. The 1/3 subharmonic and 3 ultraharmonic resonance solutions of the Duffing equation and the 1/2 subharmonic resonance solution of the Van der Pol-Mathieu equation were studied. These examples show approximate solutions are in good agreement with numerical solutions.
中图分类号: