The United States faces decisions requiring information about the oceans in vastly expanded scales of time and space and from oceanic sectors not accessible with the suite of tools now used by scientists and engineers. Advances in guidance and control, communications, sensors, and other technologies for undersea vehicles can provide an opportunity to understand the oceans' influence on the energy and chemical balance that sustains humankind and to manage and deliver resources from and beneath the sea. This book assesses the state of undersea vehicle technology and opportunities for vehicle applications in science and industry. It provides guidance about vehicle subsystem development priorities and describes how national research can be focused most effectively.

All life came from sea but all robots were born on land. The vast majority of both industrial and mobile robots operate on land, since the technology to allow them to operate in and under the ocean has only become available in recent years. A number of complex issues due to the unstructured, hazardous undersea environment, makes it difficult to travel in the ocean while today's technologies allow humans to land on the moon and robots to travel to Mars . . Clearly, the obstacles to allowing robots to operate in a saline, aqueous, and pressurized environment are formidable. Mobile robots operating on land work under nearly constant atmospheric pressure; their legs (or wheels or tracks) can operate on a firm footing; their bearings are not subjected to moisture and corrosion; they can use simple visual sensing and be observed by their creators working in simple environments. In contrast, consider the environment where undersea robots must operate. The pressure they are subjected to can be enormous, thus requiring extremely rugged designs. The deep oceans range between 19,000 to 36,000 ft. At a mere 33-foot depth, the pressure will be twice the normal one atmosphere pressure of 29. 4 psi. The chemical environment of the sea is highly corrosive, thus requiring the use of special materials. Lubrication of moving parts in water is also difficult, and may require special sealed, waterproof joints.

The choice of structural design and material is essential in preventing the external walls of a vessel from buckling under pressure. In this revised second edition of Pressure vessels, Carl Ross reviews the problem and uses both theoretical and practical examples to show how it can be solved for different structures.The second edition opens with an overview of the types of vessels under external pressure and materials used for construction. Axisymmetric deformation and different types of instability are discussed in the following chapters, with chapters 5 and 6 covering vibration of pressure vessel shells, both in water and out. Chapters 7 and 8 focus on novel pressure hulls, covering design, vibration and collapse, while chapters 9 and 10 concentrate on the design and non-linear analysis of submarine pressure hulls under external hydrostatic pressure. In chapter 11, the design, structure and materials of deep-diving underwater pressure vessels are discussed, focusing on their application in missile defence systems. Finally, chapter 12 analyses the vibration of a thin-walled shell under external water pressure, using ANSYS technology.Drawing on the author's extensive experience in engineering and design both in an industrial and academic capacity, the second edition of Pressure vessels is an essential reference for stress analysts, designers, consultants and manufacturers of pressure vessels, as well as all those with an academic research interest in the area. - Presents an overview of the types of vessels under external pressure and materials used for construction - Assesses axisymmetric deformation and different types of instability covering vibration of pressure vessel shells - Explores novel pressure hulls, covering design, vibration and collapse concentrating on the design and non-linear analysis of submarine pressure hulls

Electrical Submersible Pumps Manual: Design, Operations and Maintenance, Second Edition continues to deliver the information needed with updated developments, technology and operational case studies. New content on gas handlers, permanent magnet motors, and newly designed stage geometries are all included. Flowing from basic to intermediate to special applications, particularly for harsh environments, this reference also includes workshop materials and class-style examples for trainers to utilize for the newly hired production engineer. Other updates include novel pump stage designs, high-performance motors and temperature problems and solutions specific for high temperature wells. Effective and reliable when used properly, electrical submersible pumps (ESPs) can be expensive to purchase and maintain. Selecting the correct pump and operating it properly are essential for consistent flow from production wells. Despite this, there is not a dedicated go-to reference to train personnel and engineers. This book keeps engineers and managers involved in ESPs knowledgeable and up-to-date on this advantageous equipment utilized for the oil and gas industry. - Includes updates such as new classroom examples for training and more operational information, including production control - Features a rewritten section on failures and troubleshooting - Covers the latest equipment, developments and maintenance needed - Serves as a useful daily reference for both practicing and newly hired engineers - Explores basic electrical, hydraulics and motors, as well as more advanced equipment specific to special conditions such as production of deviated and high temperature wells