Download or read book Mechanical Shock on Naval Vessels written by W. P. Welch and published by . This book was released on 1946 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shipboard Shock and Navy Devices for Its Simulation written by and published by . This book was released on 1972 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most damaging aspects of the combat environment to which Navy ships are exposed is the mechanical shock resulting from the explosion of warheads. The detonation of a large weapon at a considerable distance from the ship produces a shipboard shock environment throughout the entire ship which is potentially damaging to all shipboard equipment and systems. Information has been accumulated on the characteristics and operation of the devices specified by MIL-S-901 for the shock testing of shipboard equipment--the Navy HI Class Shock Machines and the Floating Shock Platform. Other shock machines are also used by the Navy and other services but are not considered here. This material has been gathered from many sources, most of which are not readily accessible, and is intended to provide background information. Equipments are accepted for shipboard use if they comply satisfactorily with the shock test and design procedures prescribed by MIL-S-901.
Download or read book Background for Mechanical Shock Design of Ships Systems written by G. J. O'Hara and published by . This book was released on 1965 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report has been prepared to describe some of the progress made since World War II in the several areas related to the complex set of problems encountered in shock design and analysis of shipboard systems. It discusses: requirements for shock protection, selection of failure criteria, determination of shock environment, development of analysis and design procedures, results from past research and engineering, and the needs for future research and engineering. Essentially it sketches the evolution from the simple shock design number concept, which is limited, to a more rational approach which can allow the shock design-analysis of unprecedented equipment.
Download or read book Mechanical Shock written by Christi Lalanne and published by CRC Press. This book was released on 2020-03-31 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The concepts in this book will provide a comprehensive overview of the current state for a broad range of nitride semiconductor devices, as well as a detailed introduction to selected materials and processing issues of general relevance for these applications. This compilation is very timely given the level of interest and the current stage of research in nitride semiconductor materials and device applications. This volume consists of chapters written by a number of leading researchers in nitride materials and device technology addressing Ohmic and Schottky contacts, AIGalnN multiple quantum well laser diodes, nitride vertical cavity emitting lasers, and ultraviolet photodetectors. This unique volume provides a comprehensive review and introduction to application and devices based on GaN and related compounds for newcomers to the field and stimulus to further advances for experienced researchers.
Download or read book Mechanical Vibration and Shock Analysis Mechanical Shock written by Christian Lalanne and published by John Wiley & Sons. This book was released on 2013-03-04 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanical Vibration and Shock Analysis, Second Edition Volume 2: Mechanical Shock This volume considers the shock response spectrum, its various definitions, its properties, and the assumptions involved in its calculation. In developing the practical application of these concepts, the shock shapes or profiles most often used in test facilities are presented, together with their characteristics and indications of how to establish test configurations comparable with those of the real-world, measured environment. Following this analysis there is a case study of how to meet these specifications using standard laboratory equipment, shock machines, electrodynamic exciters driven by a time signal or a response spectrum. Discussion of the limitations, advantages and disadvantages of each method is presented. The Mechanical Vibration and Shock Analysis five-volume series has been written with both the professional engineer and the academic in mind. Christian Lalanne explores every aspect of vibration and shock, two fundamental and extremely significant areas of mechanical engineering, from both a theoretical and practical point of view. The five volumes cover all the necessary issues in this area of mechanical engineering. The theoretical analyses are placed in the context of both the real world and the laboratory, which is essential for the development of specifications.
Download or read book The Shock and Vibration Bulletin written by and published by . This book was released on with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Shock and Vibration Digest written by and published by . This book was released on 1984 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report Naval Ship Research and Development Center written by David W. Taylor Naval Ship Research and Development Center and published by . This book was released on 1958 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis and Mitigation of Mechanical Shock Effects on High Speed Planing Boats written by Sean David Kearns and published by . This book was released on 2001 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: United States Special Forces use high-speed planing boats in the performance of their missions. Operation of these boats, particularly in rough seas, exposes the occupants to severe mechanical shock exposure that has been linked to significant increase in the rates of acute and chronic injury. While many government and civilian organizations have researched various aspects of this problem over the past decade or more, no effective solution has yet been implemented in the fleet. In response to this problem, the Commander Naval Special Warfare Command in San Diego, CA forwarded a request to MIT's Ocean Engineering Department calling for a study of the problem. The object of this thesis is to conduct a comprehensive analysis of the problem, to research methods by which the problem can be mitigated, and to develop and validate a method for laboratory design, test, and evaluation, of shock mitigation systems. First, a theoretical and empirical study is conducted of the hydrodynamic interaction between a boat's hull and the seaway, and how this interaction results in the generation of mechanical shock. Actual acceleration data is obtained from the boats while underway in typical operating conditions, and other similar data is obtained from previous studies. Second, the mechanisms by which exposure to mechanical shock and vibration causes acute and chronic injury are investigated. Past human and animal testing is reviewed, along with information on the transmissibility and mechanical impedance of the human body. Information of this type, along with other injury data compilation studies, have contributed to existing injury prediction. Third, a study is made of the methods by which mechanical shock exposure on high-speed boats can be mitigated. Interfaces (e.g. - hull-seaway) are identified where shock mitigation can be achieved, and existing or conceptual shock mitigation systems are discussed.
Download or read book The Science and Engineering of Mechanical Shock written by Carl Sisemore and published by Springer. This book was released on 2019-05-08 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book fills a unique position in the literature as a dedicated mechanical shock analysis book. Because shock events can be extremely damaging, mechanical shock is an important topic for engineers to understand. This book provides the reader with the tools needed to quantitatively describe shock environments and their damage potential on aerospace, civil, naval and mechanical systems. The authors include the relevant history of how shock testing and analysis came to its current state and a discussion of the different types of shock environments typically experienced by systems. Development of single-degree-of-freedom theory and the theory of the shock response spectra are covered, consistent with treatment of shock spectra theory in the literature. What is unique is the expansion to other types of spectra including less common types of shock spectra and energy spectra methods using fundamental principles of structural dynamics. In addition, non-spectral methods are discussed with their applications. Non-spectral methods are almost completely absent from the current books on mechanical shock. Multi-degree-of-freedom shock spectra and multi-degree-of-freedom testing are discussed and the theory is developed. Addressing an emerging field for laboratory shock testing, the authors bring together information currently available only in journals and conference publications. The volume is ideal for engineers, structural designers, and structural materials fabricators needing a foundation to practically analyze shock environments and understand their role in structural design.
Download or read book Acceleration Measurements on Naval Vessels Undergoing Explosive Shock Testing written by and published by . This book was released on 1989 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: In shock testing a naval vessel many accelerometers, may be located on board the vessel to measure its response from the underwater blast wave. Accelerometers are positioned on the structure at locations such as the outer hull plating, bulkheads and superstructure. Other locations include ship's equipment such as the power plant, control systems and electronic instrumentation. It is a difficult task to identify suitable locations for measurements because of the large size of the naval structure and the complex behavior of the structure arising from the interaction of the blast wave with the vessel. The aim of this report is to present some of the work undertaken at DSTO-Materials Research Laboratory (MRL) on acceleration measurements, and to discuss the issues raised in selecting accelerometer locations.
Download or read book Naval Ship Systems Command Technical News written by and published by . This book was released on 1963 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the 10th International Conference on Rotor Dynamics IFToMM written by Katia Lucchesi Cavalca and published by Springer. This book was released on 2018-08-18 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: IFToMM conferences have a history of success due to the various advances achieved in the field of rotor dynamics over the past three decades. These meetings have since become a leading global event, bringing together specialists from industry and academia to promote the exchange of knowledge, ideas, and information on the latest developments in the dynamics of rotating machinery. The scope of the conference is broad, including e.g. active components and vibration control, balancing, bearings, condition monitoring, dynamic analysis and stability, wind turbines and generators, electromechanical interactions in rotor dynamics and turbochargers. The proceedings are divided into four volumes. This second volume covers the following main topics: condition monitoring, fault diagnostics and prognostics; modal testing and identification; parametric and self-excitation in rotor dynamics; uncertainties, reliability and life predictions of rotating machinery; and torsional vibrations and geared systems dynamics.
Download or read book Journal of the American Society of Naval Engineers Inc written by American Society of Naval Engineers and published by . This book was released on 1946 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report Naval Ship Research and Development Center written by David W. Taylor Naval Ship Research and Development Center and published by . This book was released on 1954 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Resistance of Materials to Mechanical Shock written by Bernard Goldberg and published by . This book was released on with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanical Vibration Shock Mechanical shock written by Christian Lalanne and published by . This book was released on 2002 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
