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Author: National Research Council Publisher: National Academies Press ISBN: 0309212146 Category : Technology & Engineering Languages : en Pages : 214
Book Description
The ongoing development of military aerospace platforms requires continuous technology advances in order to provide the nation's war fighters with the desired advantage. Significant advances in the performance and efficiency of jet and rocket propulsion systems are strongly dependent on the development of lighter more durable high-temperature materials. Materials development has been significantly reduced in the United States since the early 1990s, when the Department of Defense (DOD), the military services, and industry had very active materials development activities to underpin the development of new propulsion systems. This resulted in significant improvements in all engine characteristics and established the United States in global propulsion technology. Many of the significant advances in aircraft and rocket propulsion have been enabled by improved materials and, materials manufacturing processes. To improve efficiency further, engine weight must be reduced while preserving thrust. Materials Needs and Research and Development Strategy for Future Military Aerospace Propulsion Systems examines whether current and planned U.S. efforts are sufficient to meet U.S. military needs while keeping the U.S. on the leading edge of propulsion technology. This report considers mechanisms for the timely insertion of materials in propulsion systems and how these mechanisms might be improved, and describes the general elements of research and development strategies to develop materials for future military aerospace propulsion systems. The conclusions and recommendations asserted in this report will enhance the efficiency, level of effort, and impact of DOD materials development activities.
Author: National Research Council Publisher: National Academies Press ISBN: 0309212146 Category : Technology & Engineering Languages : en Pages : 214
Book Description
The ongoing development of military aerospace platforms requires continuous technology advances in order to provide the nation's war fighters with the desired advantage. Significant advances in the performance and efficiency of jet and rocket propulsion systems are strongly dependent on the development of lighter more durable high-temperature materials. Materials development has been significantly reduced in the United States since the early 1990s, when the Department of Defense (DOD), the military services, and industry had very active materials development activities to underpin the development of new propulsion systems. This resulted in significant improvements in all engine characteristics and established the United States in global propulsion technology. Many of the significant advances in aircraft and rocket propulsion have been enabled by improved materials and, materials manufacturing processes. To improve efficiency further, engine weight must be reduced while preserving thrust. Materials Needs and Research and Development Strategy for Future Military Aerospace Propulsion Systems examines whether current and planned U.S. efforts are sufficient to meet U.S. military needs while keeping the U.S. on the leading edge of propulsion technology. This report considers mechanisms for the timely insertion of materials in propulsion systems and how these mechanisms might be improved, and describes the general elements of research and development strategies to develop materials for future military aerospace propulsion systems. The conclusions and recommendations asserted in this report will enhance the efficiency, level of effort, and impact of DOD materials development activities.
Author: National Research Council Publisher: National Academies Press ISBN: 0309212111 Category : Technology & Engineering Languages : en Pages : 214
Book Description
The ongoing development of military aerospace platforms requires continuous technology advances in order to provide the nation's war fighters with the desired advantage. Significant advances in the performance and efficiency of jet and rocket propulsion systems are strongly dependent on the development of lighter more durable high-temperature materials. Materials development has been significantly reduced in the United States since the early 1990s, when the Department of Defense (DOD), the military services, and industry had very active materials development activities to underpin the development of new propulsion systems. This resulted in significant improvements in all engine characteristics and established the United States in global propulsion technology. Many of the significant advances in aircraft and rocket propulsion have been enabled by improved materials and, materials manufacturing processes. To improve efficiency further, engine weight must be reduced while preserving thrust. Materials Needs and Research and Development Strategy for Future Military Aerospace Propulsion Systems examines whether current and planned U.S. efforts are sufficient to meet U.S. military needs while keeping the U.S. on the leading edge of propulsion technology. This report considers mechanisms for the timely insertion of materials in propulsion systems and how these mechanisms might be improved, and describes the general elements of research and development strategies to develop materials for future military aerospace propulsion systems. The conclusions and recommendations asserted in this report will enhance the efficiency, level of effort, and impact of DOD materials development activities.
Author: Andrew P. Hunter Publisher: Rowman & Littlefield ISBN: 1538140349 Category : Political Science Languages : en Pages : 83
Book Description
CSIS's The Future of Military Engines looks at the state of the U.S. military engine industrial base and the choices confronting policymakers at the Department of Defense (DoD). The military engine industrial base is closely tied to the industrial base for commercial engines. U.S. engine providers use many of the same facilities and largely the same supply chain for military and commercial engines. The ability to leverage commercial supply chains is critical because supply chain quality underlies the performance advantage of U.S. military engines, both for individual aircraft and military aircraft fleets. International competitors such as Russia and China are seeking to overtake the U.S. in engines. However, the current U.S. advantage is sustainable if it is treated as a national priority. Many military aircraft, especially fighters, require engines with important differences from commercial aircraft. They fly different flight profiles and perform different jobs. These differences mean that while DoD can leverage the commercial engine industrial base, it must also make investments to sustain the industrial base’s unique military components. In the next few years, DoD investment in military engines is projected to decrease significantly, particularly for R&D. This presents a challenge as military-unique engineering skills are highly perishable. Four major policy choices confront DoD as it formulates its investment approach to military engines going forward: 1) Priority, 2) Resources, 3) Business Model, and 4) Competition. The DoD is at an inflection point for engine investment, and the time for choosing on these four key policy questions will come in the next few years.
Author: Amol A. Gokhale Publisher: Springer Nature ISBN: 9811512639 Category : Technology & Engineering Languages : en Pages : 138
Book Description
This book covers recent developments and current status of various materials, designs, and manufacturing practices which together contribute towards weight reduction of systems used in defense, aerospace, and automotive sectors. The topics covered in the volume range from new manufacturing methods such as additive manufacturing, intermetallics, aluminum-based solutions, near net-shaped processes, ultra-light weight metal foam and honeycomb based sandwich structures, advanced high strength steels, magnesium alloy castings and carbon fiber composites. It also talks about specific manufacturing and characterization techniques, property variability and reliability of light weight components. This volume will be useful to researchers, professionals, and students working in the fields of aerospace, transportation and defense.
Author: Alicia Esther Ares Publisher: BoD – Books on Demand ISBN: 9535139053 Category : Technology & Engineering Languages : en Pages : 164
Book Description
Almost all processing of technologically important materials includes a process where liquid material is cooled to form a solid, called "solidification." In order to form a solid from an undercooled melt, the formation of crystalline nuclei and growth of these nuclei to form a solid are necessary. The process of an atom jumping from the liquid to the solid is a diffusive jump with a driving force. The book Solidification is logically developed through a careful presentation of the relevant theories and models of solidification occurring in a variety of materials. Mathematicians, chemists, physicists, and engineers concerned with melting/freezing phenomena will also find this book to be valuable.
Author: Lynnette Madsen Publisher: John Wiley & Sons ISBN: 1118733711 Category : Technology & Engineering Languages : en Pages : 642
Book Description
Presents a diverse perspective of successful, inspirational and progressive women in science and engineering Women of today from 29 countries provide overviews of their successful careers, the challenges they faced, and offer advice. They have lived in the same era, and perhaps also the same environment as you. Successful Women Ceramic and Glass Scientists and Engineers: 100 Inspirational Profiles features women born in the 1920’s to 1970’s. Reflecting a diversity of backgrounds and different sectors of the workforce, their profiles include: ̶- Affiliation, points of contact, accomplishments (most-cited publication, most prestigious recognitions/awards, etc.), personal insight on her best career moment ̶ Brief biography, highlights of her successes, images from her career ̶ Personal commentary on her own career and pointers for younger scientists building careers This book provides novelty, inspiration, motivation and a bright perspective for the next generation of scientists and engineers seeking exciting and fulfilling careers. This book will be invaluable to mentors/professors, students and prospective students in science and engineering, scholars of gender studies, and scientific and engineering societies and organizations. “Lynnette Madsen has done a great service in writing this book, not just for women, but for society at large, because in the twenty-first century, we can no longer underutilize or ignore that half of the best." ̶ Rita Colwell, Director, United States National Science Foundation 1998-2004, Distinguished University Professor, University of Maryland, College Park, and Johns Hopkins Bloomberg School of Public Health "The book shows that opportunities in science exist in many countries around the world. Reading about the ways that took those women to their current positions is an exciting adventure." ̶ Yury Gogotsi, Professor, Drexel University "In addition to chronicling careers of great scientists, this book presents an array of career paths to young women and men -- a must read." ̶ Dr. Rainer Waser, Professor, Aachen University, Germany “It is inspiring to see that the successful women highlighted in this work are approaching life with courage and joy; they are changing paradigms and serving as voices for young girls. They are passionate about making a difference and breaking barriers; they are classy and fabulous." ̶ Dr. Olivia Graeve, Professor, University of California, San Diego
Author: National Research Council Publisher: National Academies Press ISBN: 0309102472 Category : Technology & Engineering Languages : en Pages : 288
Book Description
Rocket and air-breathing propulsion systems are the foundation on which planning for future aerospace systems rests. A Review of United States Air Force and Department of Defense Aerospace Propulsion Needs assesses the existing technical base in these areas and examines the future Air Force capabilities the base will be expected to support. This report also defines gaps and recommends where future warfighter capabilities not yet fully defined could be met by current science and technology development plans.
Author: National Research Council
Author: National Research Council
Author: National Research Council
Author: Andrew P. Hunter
Author: Amol A. Gokhale
Author: Alicia Esther Ares
Author: Lynnette Madsen
Author: National Research Council
Author: 
Author: 
Author: United States. National Aeronautics and Space Administration