The global adaptive H∞ synchronization is intensively investigated for the general delayed complex dynamical networks. The network under consideration contains unknown but bounded nonlinear coupling functions, time-v...The global adaptive H∞ synchronization is intensively investigated for the general delayed complex dynamical networks. The network under consideration contains unknown but bounded nonlinear coupling functions, time-varying delay, and external disturbance. Based on the Lyapunov stability theory, linear matrix inequality （LMI） optimization technique and adaptive control, several global adaptive H∞ synchronization schemes are estab- lished, which guarantee robust asymptotical synchronization of noise-perturbed network as well as a prescribed robust H∞ per- formance level. Finally, numerical simulations have shown the feasibility and effectiveness of the proposed techniques.展开更多
According to the construction principle of B-spline, a formula of surface construction for airfoil blade with the given points has been derived. Meanwhile, the surface construction system for airfoil blade in practice...According to the construction principle of B-spline, a formula of surface construction for airfoil blade with the given points has been derived. Meanwhile, the surface construction system for airfoil blade in practice as well as menus for the system have been constructed with the help of the commercial software (AutoCAD R14). The result in this paper is helpful for CAD/CAM of airfoil blades.展开更多
基金Supported by the National Natural Science Foundation of China (60904060,61104127)the Open Foundation of Hubei Province Key Laboratory of Systems Science in Metallurgical Process (C201010)
文摘The global adaptive H∞ synchronization is intensively investigated for the general delayed complex dynamical networks. The network under consideration contains unknown but bounded nonlinear coupling functions, time-varying delay, and external disturbance. Based on the Lyapunov stability theory, linear matrix inequality （LMI） optimization technique and adaptive control, several global adaptive H∞ synchronization schemes are estab- lished, which guarantee robust asymptotical synchronization of noise-perturbed network as well as a prescribed robust H∞ per- formance level. Finally, numerical simulations have shown the feasibility and effectiveness of the proposed techniques.
文摘According to the construction principle of B-spline, a formula of surface construction for airfoil blade with the given points has been derived. Meanwhile, the surface construction system for airfoil blade in practice as well as menus for the system have been constructed with the help of the commercial software (AutoCAD R14). The result in this paper is helpful for CAD/CAM of airfoil blades.
