Stability and Hopf bifurcation of a nonlinear electromechanical coupling system with time delay feedback<xref ref-type="fn" rid="cpb141480fn1">*</xref>

Stability and Hopf bifurcation of a nonlinear electromechanical coupling system with time delay feedback*

Liu Shuang^a),^b), Zhao Shuang-Shuang^a), Wang Zhao-Long^a), Li Hai-Bin^a),^b)†

Fig. 4. a Time history response and b phase diagram when the initial values are [1 #cod#x00D7; 10 #cod#x2212;4 , 1 #cod#x00D7; 10 #cod#x2212;4 , 2 #cod#x00D7; 10 #cod#x2212;4 , 2 #cod#x00D7; 10 #cod#x2212;4 ] with #cod#x03C4; #cod#x0003D; 2.9811.