Magneto-elastic dynamics and bifurcation of rotating annular plate
Hu Yu-Da1, 2, †, Piao Jiang-Min1, 2, Li Wen-Qiang1, 2
       

The motion of the system is a quadruple-period motion when P0 = 15 kN/m2, which is reflected in (a) Poincaré map that obtains four mapping points, (b) time history diagram, (c) power spectrum, and (d) phase diagram.