Artificial Intelligence Governance Capability Association Model based on Closed-loop Control Theory

Author(s):  
Yong Zhang
Author(s):  
L.H.A. Monteiro ◽  
J.J. Da Cruz

After a first contact with Evans' root locus plots, in an introductory course about classical control theory, students usually pose questions for which the answers are not trivially found in the usual textbooks. Examples of such questions are: Can a branch intersect itself? Can two or more branches be coincident? Can a branch intersect its asymptote? In this paper devoted to helping teaching, numerical examples and an incremental property are used for answering some questions about unusual forms of root loci related to closed-loop control systems. In some cases, answering to these questions can be fundamental for making a correct sketch of a root locus.


2014 ◽  
Vol 29 ◽  
pp. 212-224 ◽  
Author(s):  
Dariusz Cieslar ◽  
Paul Dickinson ◽  
Alex Darlington ◽  
Keith Glover ◽  
Nick Collings

2014 ◽  
Vol 48 (4) ◽  
pp. 36-50 ◽  
Author(s):  
Abhra Roy Chowdhury ◽  
Vinoth Kumar ◽  
Bhuneshwar Prasad ◽  
Rajesh Kumar ◽  
S.K. Panda

Abstract Bioinspired robotic locomotion in the ocean environment can unveil critical issues on maneuverability, efficiency, and power consumption. This paper describes the modeling and closed-loop control of a bioinspired robotic fish. A body-caudal fin (BCF) carangiform swimming mode is presented. The propulsion scheme simulates the oscillatory motion of fish tail as thrust generator. The manufactured prototype is a 45-cm-long BCF mode four-joint, 6 degree of freedom modular robotic fish with a horizontal caudal fin (tail). The system uses DC servomotors as actuators and is controlled by microcontroller dsPIC33F. The mechanical CAD design in done in Solidworks and its 3D motion simulations in Matlab VRML, respectively. Lagrange-based dynamic modeling is done for the robotic fish. Based on the model, two nonlinear closed-loop control schemes, namely computed torque method and feed-forward control, both with dynamic PD compensation, are evaluated. This paper compares these model-based controllers to match the desired response based on reference angle position and velocity tracking. Real-time simulation results in Matlab/Simulink are provided to illustrate the effectiveness of the proposed methodologies for robotic fish locomotion.


Sign in / Sign up

Export Citation Format

Share Document