Download or read book Design and Fabrication an Unmanned Ground underwater Vehicle written by and published by . This book was released on 2013 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design and Fabrication of an Unmanned Ground Vehicle Utilizing Variable Internal Inertial Properties written by Donald Ruffatto (III.) and published by . This book was released on 2011 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design Fabrication and Test of an Autonomous Underwater Vehicle written by Timothy L. Stanford and published by . This book was released on 2008 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book OCRA II written by Benjamin Francis Polito and published by . This book was released on 1999 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Autonomous Underwater Vehicles written by Frank Ehlers and published by SciTech Publishing. This book was released on 2020-08-26 with total page 591 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a state-of-the-art overview of the hot topic of autonomous underwater vehicle (AUV) design and practice. It covers a wide range of AUV application areas such as education and research, biological and oceanographic studies, surveillance purposes, military and security applications and industrial underwater applications.

Download or read book Design Fabrication Testing of Underwater Remotely Operated Vehicle written by Harsh Shah and published by LAP Lambert Academic Publishing. This book was released on 2013-01 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book throws light on the fundamentals of designing and construction of a simple underwater Remotely Operated Vehicle(ROV). It explains how an economical ROV can be fabricated and used for numerous applications. This book is handy for college-level students to understand and implement basic concepts of underwater vehicles. We have even included pictures, calculations and test results of an actual ROV prototype that we built ourselves, thus providing you with information and guidance required to build an ROV right from scratch.

Download or read book Design and Fabrication of ROV Remotely Operated Underwater Vehicle for Underwater Exploration written by Muhamad Fadli Ghani and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Autonomous Vehicles in Support of Naval Operations written by National Research Council and published by National Academies Press. This book was released on 2005-08-05 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Autonomous vehicles (AVs) have been used in military operations for more than 60 years, with torpedoes, cruise missiles, satellites, and target drones being early examples.1 They have also been widely used in the civilian sector-for example, in the disposal of explosives, for work and measurement in radioactive environments, by various offshore industries for both creating and maintaining undersea facilities, for atmospheric and undersea research, and by industry in automated and robotic manufacturing. Recent military experiences with AVs have consistently demonstrated their value in a wide range of missions, and anticipated developments of AVs hold promise for increasingly significant roles in future naval operations. Advances in AV capabilities are enabled (and limited) by progress in the technologies of computing and robotics, navigation, communications and networking, power sources and propulsion, and materials. Autonomous Vehicles in Support of Naval Operations is a forward-looking discussion of the naval operational environment and vision for the Navy and Marine Corps and of naval mission needs and potential applications and limitations of AVs. This report considers the potential of AVs for naval operations, operational needs and technology issues, and opportunities for improved operations.

Download or read book Rex 2 written by Dylan Owens and published by . This book was released on 2009 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: The practical usage of unmanned underwater vehicles (UUVs) is limited by vehicle and operation cost, difficulty in accurate navigation, and communication between the vehicle and operator. The "Rex 2" UUV employs a system design where a submersible is connected to a float at the water's surface by means of a tether. By maintaining a surface expression, high-bandwidth radio communication to the operator becomes possible, and GPS may be used for accurate navigation. This arrangement allows the freedom of movement characteristic of untethered autonomous underwater vehicles (AUVs), while maintaining the live operator control and communication found with tethered remotely operated vehicles (ROVs). Expanding on the design and field experiences with the MIT AUV Lab's first Reef Explorer UUV, Rex 2 was designed to be inexpensive, easy to deploy, adaptable to various payloads, and simple to use. Rex 2 was designed, built, and operated in a number of ocean field tests, validating the utility of the vehicle and system concept.

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.

Download or read book Design and Construction of a Hybrid Unmanned Aerial underwater Vehicle written by Thomas Zdyrski and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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"--

Download or read book Unmanned Ground Vehicle Technology written by and published by . This book was released on 1999 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design and Dynamic Modeling of an Unmanned Underwater Vehicle for Submerged Surface Inspection Exploiting Hydrodynamic Ground Effect written by Sampriti Bhattacharyya and published by . This book was released on 2017 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anticipated growth of sub-sea technologies for security, infrastructure inspection, and exploration, motivates a deeper understanding of underwater navigation in proximity to a submerged target surface. Common examples range from water tanks in nuclear reactors, submerged oil rig infrastructure, to ship hulls with hidden compartments and threats. We propose EVIE (Ellipsoidal Vehicle for Inspection and Exploration): a water jet propelled, football sized ellipsoidal Unmanned Underwater Vehicle (UUV) with a flattened base to house necessary sensors needed for surface inspections. The UUV is designed - both in terms of its shape and propulsion - for gliding on submerged surfaces for volumetric inspection, in addition to motion in free stream motion for visual inspections. This thesis research explores the ground effect hydrodynamics due to the motion of a body near a surface. We demonstrate the formation of a thin fluid bed layer between the surfaces which enables smooth motion even on rough surfaces. The proposed robot eliminates the need for wheels or suction. Use of ground effect fluid dynamics is common in aerial and land vehicles but is almost unexplored for underwater applications. We focus exploiting this phenomenon in real world applications, developing a prototype model to maintain precise distances with reduced actuator control. We explore both parasitic (induced by lateral motion) and explicitly induced (adding a impinging bottom jet) hydrodynamic effects. We find the force is not only non linear, it is not monotonic and has multiple equilibria. As the body approaches the surface it first experiences repulsion (enhanced thrust) due to an up-wash effect - similar to vertical take off and landing (VTOL) vehicles which can hover at reduced thrust. This transitions to a suction force at small distances from a Venturi effect. At still smaller distances there is again a repulsion due to choking flow between the body and the surface. Given the complexity of the force, and considering the hydrodynamic drag is non linear as well, traditional linearization fails to capture the system behavior and is at best constrained to a small region around the equilibrium. Instead, we use a higher dimensional, data driven approach for modeling. The underlying hypothesis is that dynamical systems behave linearly when recast in a suitable higher dimensional space. State variables are augmented by adding auxiliary variables that sufficiently inform the nonlinear dynamics of the system. We demonstrate a novel and a powerful method of individual estimation of each of the state dependent non linearities by integrating a state estimator into the augmented system. The estimator only uses measured, original states to estimate the non linear forces. The method is extremely robust: even though the approximated state transition model has significant inaccuracies, we prove guaranteed convergence of the unobserved states. This doctoral thesis encompasses three unique contribution: design and development of a prototype micro UUV platform for testing surface inspection methods; invention and application of a unique underwater phenomenon to the UUV; and establishing a novel mathematical approach for robust estimation of complex non linear elements using a linearized, high dimensional data driven model. The research presented opens a whole new door of opportunities and provides a new perspective for the design of next generation subsea vehicles and technology.

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.

Download or read book Design and Construction of a Second Generation AUV written by Michael R. Good and published by . This book was released on 1989 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Underwater Robotic Vehicles written by Junku Yuh and published by Tsi Press. This book was released on 1995 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Workshop held on Maui, Hawaii, on August 14, 1994.