Article ID Journal Published Year Pages File Type
468515 Computers & Mathematics with Applications 2012 8 Pages PDF
Abstract

Nonlinear behavior and the chaos suppression problem are studied in a coronary artery chaotic system. Based on the variable structure control (VSC) theory, the sliding mode control scheme is used to design a chaos suppression controller in this study. A suitable sliding surface is selected to ensure a sliding mode motion of error states when the proposed control law is applied. As expected, the error state drives to zero with matched external uncertainties or into a predictable neighborhood of zero with mismatched external uncertainties. Therefore, suppressing the abnormal chaotic behavior of a coronary artery system to a normal unstable periodic orbit of the nominal coronary artery system can reduce the occurrence of heart disease. A modified continuous sliding mode controller is also proposed to avoid chatter. Illustrative examples are given to demonstrate the superiority of the proposed approach.

Related Topics
Physical Sciences and Engineering Computer Science Computer Science (General)
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