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 Human Factors for Naval Marine Vehicle Design and Operation written by Jonathan M. Ross and published by CRC Press. This book was released on 2017-03-02 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a driving need for naval professionals to focus on human factors issues. The number of maritime accidents is increasing and the chief cause is human error, both by the designer and the operator. Decreasing crew size, lack of experienced operators, operations in higher sea states and fatigue worsen the situation. Automation can be a partial solution, but flawed automated systems actually contribute to accidents at sea. Up to now, there has been no overarching resource available to naval marine vehicle designers and human factors professionals which bridges the gap between the human and the machine in this context. Designers understand the marine vehicle; human factors professionals understand how a particular environment affects people. Yet neither has a practical understanding of the other's field, and thus communicating requirements and solutions is difficult. This book integrates knowledge from numerous sources as well as the advice of a panel of eight recognized experts in the fields of related research, development and operation. The result is a reference that bridges the communications gap, and stands to help enhance the design and operation of all naval marine vehicles.
Download or read book Characterization of Stiffening and Damping Materials for Planing Boat Shock Mitigation written by and published by . This book was released on 1996 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: The occupants of high-speed planing boats operating in heavy seas are subject to repeated shock loads that can injure or impair performance. Identification and evaluation of shock mitigation concepts requires development of a nonlinear, time-domain, wave-to-wave elastic planing boat/human dynamic simulation. Shock mitigation concepts include the use of various stiffening and damping materials in the cockpit or within the hull structure. This report summarizes a general method for characterizing stiffening and damping materials and devices for use in a time-domain planing boat simulation, and derives the equations for the stiffening characteristics of several materials and devices.
Download or read book HSMV 2023 written by E. Begovic and published by IOS Press. This book was released on 2023-11-09 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: A growing awareness for sustainable mobility and the importance of reducing greenhouse gas emissions call for immediate action in the maritime industry. Technical improvements, such as the hydrodynamic optimization, innovations in energy saving devices, new propulsion systems and power supplies can contribute to such achievements. This challenge is even more demanding for high speed marine craft. This book presents the proceedings of HSMV2023, the 13th International Symposium on High Speed Marine Vehicles, held from 23 to 25 October 2023 in Naples, Italy. The conference attracts academics, researchers, designers, operators and shipowners. It provides a platform for the presentation and discussion of developments in the design, construction and operation of high speed marine vessels. More than 40 submissions were received; 27 papers were selected for presentation and publication in this book after a rigorous review process. The book provides an overview of current innovations and developments, and can be a reference for all those working in the field of high-speed marine vehicles.
Download or read book D R D A Reporter written by and published by UM Libraries. This book was released on 1995 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Drop Tests to Support Water Impact and Planing Boat Dynamics Theory written by and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The occupants of high-speed planing boats are exposed to repeated shock impacts that result from hull slamming during operation in heavy seas. An important component of the research necessary for developing shock reduction technology is two dimensional water-impact theory. Drop tests provide data necessary for evaluating. shock reduction concepts, and for developing and validating two-dimensional theory. This report summarizes the method and results of an initial series of drop tests to baseline the water-impact characteristics of a rigid, high aspect-ratio, aluminum, prismatic hull model with 20-deg deadrise. Parameters varied during the baseline tests including drop height and weight. Comparison between the experimental data and CSS predictions, and recommendations for follow-on drop tests are given.
Download or read book Commerce Business Daily written by and published by . This book was released on 2000 with total page 1634 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Meeting of Board of Regents written by University of Michigan. Board of Regents and published by . This book was released on 1996-05 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 2000 HSC Code written by International Maritime Organization and published by . This book was released on 2008 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Code of Safety for High-Speed Craft, 2000 (2000 HSC Code) applies to craft for which the keels are laid, or which are at a similar stage of construction, on or after 1 July 2002. The application of the both HSC Codes is mandatory under chapter X of the SOLAS Convention. This edition incorporates amendments that were adopted in 2004 and 2006.--Publisher's description.
Download or read book Hydrodynamics of High Speed Marine Vehicles written by Odd M. Faltinsen and published by Cambridge University Press. This book was released on 2006-01-09 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrodynamics of High-Speed Marine Vehicles, first published in 2006, discusses the three main categories of high-speed marine vehicles - vessels supported by submerged hulls, air cushions or foils. The wave environment, resistance, propulsion, seakeeping, sea loads and manoeuvring are extensively covered based on rational and simplified methods. Links to automatic control and structural mechanics are emphasized. A detailed description of waterjet propulsion is given and the effect of water depth on wash, resistance, sinkage and trim is discussed. Chapter topics include resistance and wash; slamming; air cushion-supported vessels, including a detailed discussion of wave-excited resonant oscillations in air cushion; and hydrofoil vessels. The book contains numerous illustrations, examples and exercises.
Download or read book Vibration Analysis written by Robert K. Vierck and published by . This book was released on 1967 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Submarine Hydrodynamics written by Martin Renilson and published by Springer. This book was released on 2015-03-10 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book adopts a practical approach and presents recent research together with applications in real submarine design and operation. Topics covered include hydrostatics, manoeuvring, resistance and propulsion of submarines. The author briefly reviews basic concepts in ship hydrodynamics and goes on to show how they are applied to submarines, including a look at the use of physical model experiments. The issues associated with manoeuvring in both the horizontal and vertical planes are explained, and readers will discover suggested criteria for stability, along with rudder and hydroplane effectiveness. The book includes a section on appendage design which includes information on sail design, different arrangements of bow planes and alternative stern configurations. Other themes explored in this book include hydro-acoustic performance, the components of resistance and the effect of hull shape. Readers will value the author’s applied experience as well as the empirical expressions that are presented for use at the preliminary design stage. A wide range of state-of-the-art material is included, and there are over fifty references to recent publications in the field. Intended for advanced students and professionals working in the specialised field of submarine hydrodynamics, this book brings theoretical and practical knowledge together in one comprehensive work that is particularly valuable to the submarine hydrodynamicist.
Download or read book Report of the Presidential Commission on the Space Shuttle Challenger Accident written by DIANE Publishing Company and published by DIANE Publishing. This book was released on 1995-07 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Harris Shock and Vibration Handbook written by Allan G. Piersol and published by McGraw Hill Professional. This book was released on 2009-10-01 with total page 1199 pages. Available in PDF, EPUB and Kindle. Book excerpt: The classic reference on shock and vibration, fully updated with the latest advances in the field Written by a team of internationally recognized experts, this comprehensive resource provides all the information you need to design, analyze, install, and maintain systems subject to mechanical shock and vibration. The book covers theory, instrumentation, measurement, testing, control methodologies, and practical applications. Harris' Shock and Vibration Handbook, Sixth Edition, has been extensively revised to include innovative techniques and technologies, such as the use of waveform replication, wavelets, and temporal moments. Learn how to successfully apply theory to solve frequently encountered problems. This definitive guide is essential for mechanical, aeronautical, acoustical, civil, electrical, and transportation engineers. EVERYTHING YOU NEED TO KNOW ABOUT MECHANICAL SHOCK AND VIBRATION, INCLUDING Fundamental theory Instrumentation and measurements Procedures for analyzing and testing systems subject to shock and vibration Ground-motion, fluid-flow, wind-. and sound-induced vibration Methods for controlling shock and vibration Equipment design The effects of shock and vibration on humans
Download or read book Logistics Transportation Systems written by MD Sarder and published by Elsevier. This book was released on 2020-10-17 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: Logistics Transportation Systems compiles multiple topics on transportation logistics systems from both qualitative and quantitative perspectives, providing detailed examples of real-world logistics workflows. It explores the key concepts and problem-solving techniques required by researchers and logistics professionals to effectively manage the continued expansion of logistics transportation systems, which is expected to reach an estimated 25 billion tons in the United States alone by 2045. This book provides an ample understanding of logistics transportation systems, including basic concepts, in-depth modeling analysis, and network analysis for researchers and practitioners. In addition, it covers policy issues related to transportation logistics, such as security, rules and regulations, and emerging issues including reshoring. This book is an ideal guide for academic researchers and both undergraduate and graduate students in transportation modeling, supply chains, planning, and systems. It is also useful to transportation practitioners involved in planning, feasibility studies, consultation and policy for transportation systems, logistics, and infrastructure. Provides real-world examples of logistics systems solutions for multiple transportation modes, including seaports, rail, barge, road, pipelines, and airports Covers a wide range of business aspects, including customer service, cost, and decision analysis Features key-term definitions, concept overviews, discussions, and analytical problem-solving
Download or read book Optimum Shock and Vibration Isolation written by Eugene Sevin and published by . This book was released on 1971 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Adventure Hikes and Canyoneering in the San Gabriels written by Christopher Earls Brennen and published by . This book was released on 1999-08 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: A guide to adventure hiking and canyoneering in San Gabriel mountains of California.
