Chua's circuit is a well-known nonlinear electronic model, having complicated nonsmooth dynamic behaviors. The stability and boundary equilibrium bifurcations for a modified Chua's circuit system with the smooth degree of 3 are studied. The parametric areas of stability are specified in detail. It is found that the bifurcation graphs of the supercritical and irregular pitchfork bifurcations are similar to those of the piecewise-smooth continuous(PWSC) systems caused by piecewise smoothness. However, the bifurcation graph of the supercritical Hopf bifurcation is similar to those of smooth systems. Therefore, the boundary equilibrium bifurcations of the non-smooth systems with the smooth degree of 3 should receive more attention due to their special features.
Shihui FU, Xiangying MENG, Qishao LU
. Stability and boundary equilibrium bifurcations of modified Chua's circuit with smooth degree of 3[J]. Applied Mathematics and Mechanics, 2015
, 36(12)
: 1639
-1650
.
DOI: 10.1007/s10483-015-2009-6
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