Sr. Bishop et Mj. Clifford, NON ROTATING PERIODIC-ORBITS IN THE PARAMETRICALLY EXCITED PENDULUM, European journal of mechanics. A, Solids, 13(4), 1994, pp. 581-587
Non-rotating solutions for the parametrically excited pendulum are con
sidered, and comparison is made between the pendulum and a system whic
h permits ecpape from a symmetric potential well. Two escape or failur
e scenarios are identified by a bifurcation diagram, and stable period
ic orbits are identified using methods of symbolic dynamics and path f
ollowing techniques.