Ablation Modeling of Electro-magnetically Launched Projectile for Access to Space PDF Download
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Author: Ryan C. Gosse
Publisher:
ISBN:
Category :
Languages : en
Pages : 410
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Book Description
Author: Ryan C. Gosse
Publisher:
ISBN:
Category :
Languages : en
Pages : 410
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Book Description
Author: Rainer Meinke
Publisher:
ISBN:
Category : Electromagnetic devices
Languages : en
Pages : 72
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Book Description
The conceptual design of a novel hypersonic electromagnetic launch system has been developed, which offers reliable access to space. While the concept can be scaled in both mass and launch speed, the performed study assumes a 100-kg projectile leaving the launcher at 7,000 m/sec. The projectile is propelled and levitated by electromagnetic forces inside of a low pressure tube filled with helium at about 10 torr. A fully controlled acceleration profile, which can be adjusted to meet the requirements of various missions, is used to reach 5000 gee in a 500-meter long launch tube. A constant-flux synchronous motor concept, developed under this contract, is a breakthrough technology that provides contact-free propulsion and self-centering suspension with sufficient stiffness and thrust. The use of high current, persistent mode, superconducting coils in the projectile generates high thrust force with near-zero heat dissipation. No brushes or projectile supplies are needed, eliminating contact phenomena. The low pressure helium atmosphere inside of the launch tube is proposed, which nearly eliminates both aerodynamic and heat transfer effects(force, torque and heating) due to high speed gas flow around the projectile, with large safety margins. The proposed technology therefore removes several of the technical problems that have made hypersonic electromagnetic launch unfeasible, in particular the inductive heating of the projectile when a contact-free armature is desired.
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 902
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Book Description
Author: Bong Wie
Publisher: AIAA
ISBN: 9781563472619
Category : Mathematics
Languages : en
Pages : 692
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Book Description
A textbook that incorporates the latest methods used for the analysis of spacecraft orbital, attitude, and structural dynamics and control. Spacecraft dynamics is treated as a dynamic system with emphasis on practical applications, typical examples of which are the analysis and redesign of the pointing control system of the Hubble Space Telescope and the analysis of an active vibrations control for the COFS (Control of Flexible Structures) Mast Flight System. In addition to the three subjects mentioned above, dynamic systems modeling, analysis, and control are also discussed. Annotation copyrighted by Book News, Inc., Portland, OR
Author: Barrie D. Dunn
Publisher: Springer
ISBN: 3319233629
Category : Technology & Engineering
Languages : en
Pages : 677
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Book Description
The objective of this book is to assist scientists and engineers select the ideal material or manufacturing process for particular applications; these could cover a wide range of fields, from light-weight structures to electronic hardware. The book will help in problem solving as it also presents more than 100 case studies and failure investigations from the space sector that can, by analogy, be applied to other industries. Difficult-to-find material data is included for reference. The sciences of metallic (primarily) and organic materials presented throughout the book demonstrate how they can be applied as an integral part of spacecraft product assurance schemes, which involve quality, material and processes evaluations, and the selection of mechanical and component parts. In this successor edition, which has been revised and updated, engineering problems associated with critical spacecraft hardware and the space environment are highlighted by over 500 illustrations including micrographs and fractographs. Space hardware captured by astronauts and returned to Earth from long durations in space are examined. Information detailed in the Handbook is applicable to general terrestrial applications including consumer electronics as well as high reliability systems associated with aeronautics, medical equipment and ground transportation. This Handbook is also directed to those involved in maximizing the relia bility of new materials and processes for space technology and space engineering. It will be invaluable to engineers concerned with the construction of advanced structures or mechanical and electronic sub-systems.
Author: National Research Council
Publisher: National Academies Press
ISBN: 030908637X
Category : Science
Languages : en
Pages : 177
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Book Description
Recent scientific and technical advances have made it possible to create matter in the laboratory under conditions relevant to astrophysical systems such as supernovae and black holes. These advances will also benefit inertial confinement fusion research and the nation's nuclear weapon's program. The report describes the major research facilities on which such high energy density conditions can be achieved and lists a number of key scientific questions about high energy density physics that can be addressed by this research. Several recommendations are presented that would facilitate the development of a comprehensive strategy for realizing these research opportunities.
Author: K. F. Long
Publisher: Springer Science & Business Media
ISBN: 1461406072
Category : Technology & Engineering
Languages : en
Pages : 379
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Book Description
The technology of the next few decades could possibly allow us to explore with robotic probes the closest stars outside our Solar System, and maybe even observe some of the recently discovered planets circling these stars. This book looks at the reasons for exploring our stellar neighbors and at the technologies we are developing to build space probes that can traverse the enormous distances between the stars. In order to reach the nearest stars, we must first develop a propulsion technology that would take our robotic probes there in a reasonable time. Such propulsion technology has radically different requirements from conventional chemical rockets, because of the enormous distances that must be crossed. Surprisingly, many propulsion schemes for interstellar travel have been suggested and await only practical engineering solutions and the political will to make them a reality. This is a result of the tremendous advances in astrophysics that have been made in recent decades and the perseverance and imagination of tenacious theoretical physicists. This book explores these different propulsion schemes – all based on current physics – and the challenges they present to physicists, engineers, and space exploration entrepreneurs. This book will be helpful to anyone who really wants to understand the principles behind and likely future course of interstellar travel and who wants to recognizes the distinctions between pure fantasy (such as Star Trek’s ‘warp drive’) and methods that are grounded in real physics and offer practical technological solutions for exploring the stars in the decades to come.
Author: Heinz E. Knoepfel
Publisher: John Wiley & Sons
ISBN: 3527617426
Category : Science
Languages : en
Pages : 643
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Book Description
A unique resource for physicists and engineers working with magnetic fields An understanding of magnetic phenomena is essential for anyone working on the practical application of electromagnetic theory. Magnetic Fields: A Comprehensive Theoretical Treatise for Practical Use provides physicists and engineers with a thorough treatment of the magnetic aspects of classical electromagnetic theory, focusing on key issues and problems arising in the generation and application of magnetic fields. From magnetic potentials and diffusion phenomena to magnetohydrodynamics and properties of matter-topics are carefully selected for their relevance to the theoretical framework as well as current technologies. Outstanding in its organization, clarity, and scope, Magnetic Fields: * Examines a wide range of practical problems, from magnetomechanical devices to magnetic acceleration mechanisms * Opens each chapter with reference to pertinent engineering examples * Provides sufficient detail enabling readers to follow the derivation of the results * Discusses solution methods and their application to different problems * Includes more than 300 graphs, 40 tables, 2,000 numbered formulas, and extensive references to the professional literature * Reviews the essential mathematics in the appendices
Author: Akkad Pseudoman
Publisher: Baen Publishing Enterprises
ISBN: 1625790244
Category : Fiction
Languages : en
Pages : 371
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Book Description
Now with an Historical Afterword by Ron MillerIncludes the original illustrations Featured in Ron Millers _The Conquest of Space Book Series.Ó One of the most obscure and fascinating of all pre-spaceflight books, this fictional "autobiography" by _Akkad Pseudoman (E.F. Northrup) includes detailed descriptions (with photos and a technical appendix) of the first-ever practical experiments with an electromagnetic railgun. Originally published in 1937. At the publisher's request, this title is sold without DRM (Digital Rights Management).
Author: Gregory L. Matloff
Publisher: Springer Science & Business Media
ISBN: 3540273409
Category : Technology & Engineering
Languages : en
Pages : 267
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Book Description
The Space Age is nearly 50 years old but exploration of the outer planets and beyond has only just begun. Deep-Space Probes Second Edition draws on the latest research to explain why we should explore beyond the edge of the Solar System and how we can build highly sophisticated robot spacecraft to make the journey. Many technical problems remain to be solved, among them propulsion systems to permit far higher velocities, and technologies to build vehicles a fraction of the size of today’s spacecraft. Beyond the range of effective radio control, robot vehicles for exploring deep space will need to be intelligent, ‘thinking’ craft – able to make vital decisions entirely on their own. Gregory Matloff also looks at the possibility for human travel into interstellar space, and some of the immense problems that such journeys would entail. This second edition includes an entirely new chapter on holographic message plaques for future interstellar probes – a NASA-funded project.
