Design of adaptive fuzzy gain scheduling fast terminal sliding mode to control the radius of bubble in the blood vessel with application in cardiology
| Autor: | Mahdi Alinaghizadeh Ardestani, Ehsan Badfar |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0209 industrial biotechnology
medicine.medical_specialty Control and Optimization Computer science Bubble Physics::Medical Physics Terminal sliding mode 02 engineering and technology Nonlinear control 01 natural sciences Tracking error 020901 industrial engineering & automation Internal medicine 0103 physical sciences Convergence (routing) medicine Electrical and Electronic Engineering 010301 acoustics Civil and Structural Engineering Lyapunov stability Fuzzy rule Mechanical Engineering Nonlinear system Control and Systems Engineering Modeling and Simulation Cardiology |
| Zdroj: | International Journal of Dynamics and Control. 9:199-210 |
| ISSN: | 2195-2698 2195-268X |
| Popis: | The nonlinear behavior of bubble in the blood vessel restricts the applications of bubble technology in the cardiology. In this paper, a novel engineering solution is proposed to control the radius of the bubble and prevent bubble collapse. For this purpose, the nonlinear dynamics of the bubble in the blood vessel is introduced and then presented into the state-space form. The next part of this paper is devoted to designing a nonlinear control method, where the ultrasonic wave plays the role of control input and the output is the radius of the bubble in the blood vessel. In order to achieve faster, finite-time convergence and higher control precision, fast terminal sliding mode is proposed. The stability of the closed-loop system is ensured through the Lyapunov stability analysis. In order to tackle the chattering problem, the switching gain is adaptively tuned according to the fuzzy rule. In this method, the tracking error and its differential are considered as the inputs and the switching gain is considered as the output of the fuzzy logic system. Simulation results confirm the effectiveness of the proposed control method. Finally, the results of this research are of immediate interest for modern medical applications such as ultrasonic imaging, targeted drug delivery, and cancer treatment. |
| Databáze: | OpenAIRE |
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