Semnan University International Journal of Nonlinear Analysis and Applications 2008-6822 6 2 2015 11 01 Simulation and perturbation analysis of escape oscillator 93 101 257 10.22075/ijnaa.2015.257 EN Patanjali Sharma Department of Education in Science & Mathematics, Regional Institute of Education (NCERT), Ajmer 305 004, India Journal Article 2014 10 07 The dynamical behaviour of the forced escape oscillator, which depends on the parameter values we considered, have been studied numerically using the techniques of phase portraits and Poincar'{e} sections. Also, we employed perturbation methods such as Lindstedt's method to obtain the frequency-amplitude relation of escape oscillator. Escape oscillator Perturbation analysis Lindstedt's method https://ijnaa.semnan.ac.ir/article_257_aa4bfdc2922c3d9fa1ae4f2835dcee72.pdf