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This paper presents chaos synchronization between two different
four-dimensional (4D) hyperchaotic Chen systems by nonlinear feedback
control laws. A modified 4D hyperchaotic Chen system is obtained by
changing the nonlinear function of the 4D hyperchaotic Chen system,
furthermore, an electronic circuit to realize two different 4D
hyperchaotic Chen systems is designed. With nonlinear feedback
control method, chaos synchronization between two different 4D
hyperchaotic Chen systems is achieved. Based on the stability theory,
the functions of the nonlinear feedback control for synchronization
of two different 4D hyperchaotic Chen systems is derived, the range
of feedback gains is determined. Numerical simulations are shown to
verify the theoretical results. 相似文献
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用边界元方法数值分析绕平壁上一薄平板的STOKES流动 总被引:2,自引:0,他引:2
本文用边界元方法研究了绕平壁上一薄平板的Stokes流动,数值模拟了薄平板与平壁成不同倾角ξ=π/2时,平板左右两侧形成大小相等的两个涡旋,其涡心到角点的距离为平板高的0.54倍;当ζ=5π/12时,平板两侧仍然形成两个涡旋,不过平板右侧5π/12角内的涡旋明显大于板左侧的涡旋,其涡心距角点的距离右侧是平板高的0.68倍,左侧是0.29倍;当ξ=π/3时,平板左侧的涡旋已经消失,右侧π/3角内角然 相似文献
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