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Autopilot Design For Autonomous Underwater Vehicles Based On Sliding Mode Control
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Book Synopsis Autopilot Design for Autonomous Underwater Vehicles Based on Sliding Mode Control by : David E. Lienard
Download or read book Autopilot Design for Autonomous Underwater Vehicles Based on Sliding Mode Control written by David E. Lienard and published by . This book was released on 1990 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: An autopilot is designed using Sliding Mode Control Theory that can control the speed and heading of a full six degree of freedom, nonlinear model that allows speed and heading to be treated as separate systems. Once control of heading and speed is established, depth control is achieved by a third control law. Although they are developed separately, the three individual control laws act simultaneously to provide robust control of speed, heading, and depth of the nonlinear model of the vehicle. Line of Sight Guidance is used to convert the way points provided by the mission planner into commands for heading to which the autopilot responds. The performance of the autopilot is evaluated over a wide range of speeds to demonstrate its robustness. In addition, the effects of current are simulated and the autopilot is modified to compensate for the presence of a strong current.
Book Synopsis Multiple Input Sliding Mode Control for Autonomous Diving and Steering of Underwater Vehicles by : Todd D. Hawkinson
Download or read book Multiple Input Sliding Mode Control for Autonomous Diving and Steering of Underwater Vehicles written by Todd D. Hawkinson and published by . This book was released on 1990 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design and analysis of multiple input autopilots using sliding modes in order to achieve accurate horizontal and vertical plane control of an autonomous underwater vehicle over a wide variation of speeds is presented. The simulated vehicle is equipped with two (fore and aft) sets of dive planes and two sets of rudders. In addition, two vertical and two horizontal thrusters are provided for control during low speed or hovering operations. The entire range of vehicle speeds from zero speed hovering to full speed ahead is divided into regions depending on control efficiency. Thrusters are used for low speed hovering, control surfaces for transition speeds. Linear quadratic regulator optimal control techniques coupled with the robustness properties of sliding mode control are utilized to provide the necessary control reversal which occurs during the transition from cruise to hover mode. Constant disturbances arising from underwater currents are effectively compensated resulting in accurate path keeping. As a consequence of the multiple input control methodology developed in this work, it is shown that both path and orientation accuracy can be achieved in moderate cross current environments. Finally, reduced order observers are designed in order to account for sensor absence or malfunction.
Book Synopsis Design and Investigation of a Dive Plane Sliding Mode Compensator for an Autonomous Underwater Vehicle by : Joo-No Sur
Download or read book Design and Investigation of a Dive Plane Sliding Mode Compensator for an Autonomous Underwater Vehicle written by Joo-No Sur and published by . This book was released on 1989 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: A sliding mode compensator for depth control of an autonomous underwater vehicle (AUV) using depth feedback only is designed. The controller is evaluated for a nominal linear model and optimized by a series of numerical experiments for a number of depth changing maneuvers. A state observer is used in order to estimate the unmeasurable states together with the sliding mode controller. The effects of varying control parameters are discussed. Compensator performance is assessed by numerical simulation of AUV dynamic response based on the full six degrees of freedom nonlinear equations of motion. The expected robustness of the design is demonstrated by comparison between linear and nonlinear vehicle response characteristics, and by a wide variation in vehicle parameters and hydrodynamic coefficients. Finally, suggestions for design improvement and directions for future research are indicated. Keywords: Word processing; Script; Text processing; Theses.
Book Synopsis Design and Investigation of a Dive Plane Sliding Mode Compensator for an Autonomous Underwater Vehicle by : Joo-No Sur
Download or read book Design and Investigation of a Dive Plane Sliding Mode Compensator for an Autonomous Underwater Vehicle written by Joo-No Sur and published by . This book was released on 1989 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A sliding mode compensator for depth control of an autonomous underwater vehicle (AUV) using depth feedback only is designed. The controller is evaluated for a nominal linear model and optimized by a series of numerical experiments for a number of depth changing maneuvers. A state observer is used in order to estimate the unmeasurable states together with the sliding mode controller. The effects of varying control parameters are discussed. Compensator performance is assessed by numerical simulation of AUV dynamic response based on the full six degrees of freedom nonlinear equations of motion. The expected robustness of the design is demonstrated by comparison between linear and nonlinear vehicle response characteristics, and by a wide variation in vehicle parameters and hydrodynamic coefficients. Finally, suggestions for design improvement and directions for future research are indicated. Keywords: Word processing; Script; Text processing; Theses.
Book Synopsis Autonomous Underwater Vehicles by : Jing Yan
Download or read book Autonomous Underwater Vehicles written by Jing Yan and published by Springer Nature. This book was released on 2021-11-01 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Autonomous underwater vehicles (AUVs) are emerging as a promising solution to help us explore and understand the ocean. The global market for AUVs is predicted to grow from 638 million dollars in 2020 to 1,638 million dollars by 2025 – a compound annual growth rate of 20.8 percent. To make AUVs suitable for a wider range of application-specific missions, it is necessary to deploy multiple AUVs to cooperatively perform the localization, tracking and formation tasks. However, weak underwater acoustic communication and the model uncertainty of AUVs make achieving this challenging. This book presents cutting-edge results regarding localization, tracking and formation for AUVs, highlighting the latest research on commonly encountered AUV systems. It also showcases several joint localization and tracking solutions for AUVs. Lastly, it discusses future research directions and provides guidance on the design of future localization, tracking and formation schemes for AUVs. Representing a substantial contribution to nonlinear system theory, robotic control theory, and underwater acoustic communication system, this book will appeal to university researchers, scientists, engineers, and graduate students in control theory and control engineering who wish to learn about the core principles, methods, algorithms, and applications of AUVs. Moreover, the practical localization, tracking and formation schemes presented provide guidance on exploring the ocean. The book is intended for those with an understanding of nonlinear system theory, robotic control theory, and underwater acoustic communication systems.
Book Synopsis Advances in Unmanned Marine Vehicles by : G.N. Roberts
Download or read book Advances in Unmanned Marine Vehicles written by G.N. Roberts and published by IET. This book was released on 2006-01-31 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unmanned marine vehicles (UMVs) include autonomous underwater vehicles, remotely operated vehicles, semi-submersibles and unmanned surface craft. Considerable importance is being placed on the design and development of such vehicles, as they provide cost-effective solutions to a number of littoral, coastal and offshore problems. This book highlights the advanced technology that is evolving to meet the challenges being posed in this exciting and growing area of research.
Book Synopsis Real Time Adaptive Control of an Autonomous Underwater Vehicle (AUV). by : Michael H. Davis
Download or read book Real Time Adaptive Control of an Autonomous Underwater Vehicle (AUV). written by Michael H. Davis and published by . This book was released on 1989 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this research the problem of designing a controller for the dive maneuver of an Autonomous Underwater Vehicle (AUV) is addressed. The highly nonlinear nature of the vehicle dynamics and the requirement for the fast maneuvering call for robust control techniques. In particular Variable Structure Control (VSC) combined with Adaptive Control (AC) techniques seem to yield satisfactory performance in terms of robustness, capability to adjust to different operating conditions, and speed of response. Also linear robust techniques based on LQG and robust observers are presented to address the case when the whole state (in terms of pitch rate, pitch, and depth) is not available for measurement. Autonomous underwater vehicle; Variable structure control; AUV; Sliding mode control; Doyle-Stein observer; Adaptive control; Thesis; Sea floor mapping; Target identification; Remote reconnaissance; Underwater tracking.
Book Synopsis Autonomous Underwater Vehicles by : Sabiha Wadoo
Download or read book Autonomous Underwater Vehicles written by Sabiha Wadoo and published by CRC Press. This book was released on 2017-12-19 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Underwater vehicles present some difficult and very particular control system design problems. These are often the result of nonlinear dynamics and uncertain models, as well as the presence of sometimes unforeseeable environmental disturbances that are difficult to measure or estimate. Autonomous Underwater Vehicles: Modeling, Control Design, and Simulation outlines a novel approach to help readers develop models to simulate feedback controllers for motion planning and design. The book combines useful information on both kinematic and dynamic nonlinear feedback control models, providing simulation results and other essential information, giving readers a truly unique and all-encompassing new perspective on design. Includes MATLAB® Simulations to Illustrate Concepts and Enhance Understanding Starting with an introductory overview, the book offers examples of underwater vehicle construction, exploring kinematic fundamentals, problem formulation, and controllability, among other key topics. Particularly valuable to researchers is the book’s detailed coverage of mathematical analysis as it applies to controllability, motion planning, feedback, modeling, and other concepts involved in nonlinear control design. Throughout, the authors reinforce the implicit goal in underwater vehicle design—to stabilize and make the vehicle follow a trajectory precisely. Fundamentally nonlinear in nature, the dynamics of AUVs present a difficult control system design problem which cannot be easily accommodated by traditional linear design methodologies. The results presented here can be extended to obtain advanced control strategies and design schemes not only for autonomous underwater vehicles but also for other similar problems in the area of nonlinear control.
Book Synopsis Adaptive Fuzzy Sliding Mode Controller for Autonomous Underwater Vehicles by : Haoran Ge
Download or read book Adaptive Fuzzy Sliding Mode Controller for Autonomous Underwater Vehicles written by Haoran Ge and published by . This book was released on 2005 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Control and Navigation of Autonomous Underwater Vehicles by : Yuqian Liu
Download or read book Control and Navigation of Autonomous Underwater Vehicles written by Yuqian Liu and published by . This book was released on 2014 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Applications of Sliding Mode Control in Science and Engineering by : Sundarapandian Vaidyanathan
Download or read book Applications of Sliding Mode Control in Science and Engineering written by Sundarapandian Vaidyanathan and published by Springer. This book was released on 2017-04-06 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gathering 20 chapters contributed by respected experts, this book reports on the latest advances in and applications of sliding mode control in science and engineering. The respective chapters address applications of sliding mode control in the broad areas of chaos theory, robotics, electrical engineering, physics, chemical engineering, memristors, mechanical engineering, environmental engineering, finance, and biology. Special emphasis has been given to papers that offer practical solutions, and which examine design and modeling involving new types of sliding mode control such as higher order sliding mode control, terminal sliding mode control, super-twisting sliding mode control, and integral sliding mode control. This book serves as a unique reference guide to sliding mode control and its recent applications for graduate students and researchers with a basic knowledge of electrical and control systems engineering.
Book Synopsis Super Twisting Sliding Mode Control with Region Boundary Scheme for an Autonomous Underwater Vehicle by : Vina Wahyuni Eka
Download or read book Super Twisting Sliding Mode Control with Region Boundary Scheme for an Autonomous Underwater Vehicle written by Vina Wahyuni Eka and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A robust tracking control for an Autonomous Underwater Vehicle (AUV) system operated in the extreme ocean environment activities is very much needed due to its external disturbances potentially disturb the stability of the system. This research proposes a new robust-region based controller which integrates Super Twisting Sliding Mode Control (STSMC) with region boundary approach in the presence of determined disturbances. STSMC is a second order SMC which combines between continuous signal and discontinuous signal to produce a robust system. By incorporating region based control into STSMC, the desired trajectory defined as a region produces an energy saving control compared to conventional point based control. Energy function of region error is applied on the AUV to maintain inside the desired region during tracking mission, thus, minimizing the energy usage. Analysis on a Lyapunov candidate proved that the proposed control achieved a global asymptotic stability and showed less chattering, providing 20s faster response time to handle perturbations, less transient of thrusters' propulsion and ability to save 50% of energy consumption compared to conventional SMC, Fuzzy SMC and STSMC. Overall, the newly developed controller contributed to a new robust, stable and energy saving controller for an AUV in the presence of external disturbances.
Book Synopsis Design of a Hover Mode Autopilot for the Phoenix Autonomous Underwater Vehicle by : Juan Cesar Gonzalez
Download or read book Design of a Hover Mode Autopilot for the Phoenix Autonomous Underwater Vehicle written by Juan Cesar Gonzalez and published by . This book was released on 1995 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: The potential uses for autonomous underwater vehicles (AUV's) is gaining recognition by organizations world wide. As such, continuous research toward improving existing vehicles by seeking new designs and increasing efficiency is being funded by organizations that serve to benefit from the new technology. Some examples for which AUV's may be used include mine countermeasures, submerged structural repair or destruction, search and rescue, biological study, ocean floor and coastal survey. The goal of this thesis is to design an autopilot that will use a combination of both vertical thrusters, both horizontal thrusters, and the main screws simultaneously to control the NPS phoenix AUV's posture during hovering conditions and short transits. The control design is implemented and simulated using Common LISP object oriented programming language. The results of this thesis are favorable. Since this thesis presents only a basic approach to an autopilot design, it is believed by the author that with further improvements to the design presented, the existing hover made autopilot can eventually be upgraded with the resulting autopilot design. This upgrade would greatly increase the autopilots efficiency. (AN).
Book Synopsis Intelligent Sustainable Systems by : Jennifer S. Raj
Download or read book Intelligent Sustainable Systems written by Jennifer S. Raj and published by Springer Nature. This book was released on 2022-08-22 with total page 825 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book features research papers presented at the 5th International Conference on Intelligent Sustainable Systems (ICISS 2022), held at SCAD College of Engineering and Technology, Tirunelveli, Tamil Nadu, India, during February 17–18, 2022. The book discusses latest research works that discusses the tools, methodologies, practices, and applications of sustainable systems and computational intelligence methodologies. The book is beneficial for readers from both academia and industry.
Book Synopsis Advanced Model Predictive Control for Autonomous Marine Vehicles by : Yang Shi
Download or read book Advanced Model Predictive Control for Autonomous Marine Vehicles written by Yang Shi and published by Springer Nature. This book was released on 2023-02-13 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview of marine control system design related to underwater robotics applications. In particular, it presents novel optimization-based model predictive control strategies to solve control problems appearing in autonomous underwater vehicle applications. These novel approaches bring unique features, such as constraint handling, prioritization between multiple design objectives, optimal control performance, and robustness against disturbances and uncertainties, into the control system design. They therefore form a more general framework to design marine control systems and can be widely applied. Advanced Model Predictive Control for Autonomous Marine Vehicles balances theoretical rigor – providing thorough analysis and developing provably-correct design conditions – and application perspectives – addressing practical system constraints and implementation issues. Starting with a fixed-point positioning problem for a single vehicle and progressing to the trajectory-tracking and path-following problem of the vehicle, and then to the coordination control of a large-scale multi-robot team, this book addresses the motion control problems, increasing their level of challenge step-by-step. At each step, related subproblems such as path planning, thrust allocation, collision avoidance, and time constraints for real-time implementation are also discussed with solutions. In each chapter of this book, compact and illustrative examples are provided to demonstrate the design and implementation procedures. As a result, this book is useful for both theoretical study and practical engineering design, and the tools provided in the book are readily applicable for real-world implementation.
Book Synopsis Design of a Hover Mode Autopilot for the Phoenix Autonomous Underwater Vehicle by :
Download or read book Design of a Hover Mode Autopilot for the Phoenix Autonomous Underwater Vehicle written by and published by . This book was released on 1995 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: The potential uses for autonomous underwater vehicles (AUV's) is gaining recognition by organizations world wide. As such, continuous research toward improving existing vehicles by seeking new designs and increasing efficiency is being funded by organizations that serve to benefit from the new technology. Some examples for which AUV's may be used include mine countermeasures, submerged structural repair or destruction, search and rescue, biological study, ocean floor and coastal survey. The goal of this thesis is to design an autopilot that will use a combination of both vertical thrusters, both horizontal thrusters, and the main screws simultaneously to control the NPS Phoenix AUV's posture during hovering conditions and short transits. The control design is implemented and simulated using Common LISP object oriented programming language. The results of this thesis are favorable. Since this thesis presents only a basic approach to an autopilot design, it is believed by the author that with further improvements to the design presented, the existing hover made autopilot can eventually be upgraded with the resulting autopilot design. This upgrade would greatly increase the autopilots efficiency. (AN).
Book Synopsis Underwater Vehicles by : George M. Roman
Download or read book Underwater Vehicles written by George M. Roman and published by Nova Science Publishers. This book was released on 2020 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Underwater Vehicles: Design and Applications first explores the application of the adaptive Kalman filter algorithm to the estimation of high speed autonomous underwater vehicle dynamics. The authors investigate the performances of different control schemes, from non-model-based to model-based and adaptive model-based, implemented on a low-inertia underwater vehicle for three-dimensional helical trajectory tracking. Control laws for collision avoidance in three-dimensional environments are introduced, considering scenarios where a vehicle detects arbitrarily shaped and nonconvex obstacles using sensors"--
