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Tethered To The Earth

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Tethered To The Earth

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Author : Tyler Farrell
language : en
Publisher: Salmon Publishing
Release Date : 2008

Tethered To The Earth written by Tyler Farrell and has been published by Salmon Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with American poetry categories.

Tethered to the Earth contains human figures in two landscapes as well as the complex emotions evoked when one is far from home. After living and teaching in Northern Wisconsin for two school years and traveling through Europe for five weeks (the summer between), the poet's view of the world seemed a far bigger place. These poems are meant to address two types of isolation and awakening, an evocation of two personal places within oneself. With the stark and desolate beauty of Ashland, Wisconsin and the wandering style of European life, the imaginative nature of two distinct parts of the earth begin to transmit themselves. "Distinctive, memorable, thoughtful and though-provoking ... a remarkable and recommended volume of original poetry." The Midwest Book Review

Dynamics Of Tethered Satellite Systems

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Author : Vladimir Aslanov
language : en
Publisher: Elsevier
Release Date : 2012-10-16

Dynamics Of Tethered Satellite Systems written by Vladimir Aslanov and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-10-16 with Science categories.

Aimed at engineering students and professionals working in the field of mechanics of space flight, this book examines space tether systems – one of the most forward-thinking directions of modern astronautics. The main advantage of this technology is the simplicity, profitability and ecological compatibility: space tethers allow the execution of various manoeuvers in orbit without costs of jet fuel due to the use of gravitational and electromagnetic fields of the Earth. This book will acquaint the reader with the modern state of the space tether’s dynamics, with specific attention on the research projects of the nearest decades. This book presents the most effective mathematical models and the methods used for the analysis and prediction of space tether systems’ motion; attention is also given to the influence of the tether on spacecraft’s motion, to emergencies and chaotic modes. Written by highly qualified experts with practical experience in both the fields of mechanics of space flight, and in the teaching Contains detailed descriptions of mathematical models and methods, and their features, that allow the application of the material of the book to the decision of concrete practical tasks New approaches to the decision of problems of space flight mechanics are offered, and new problems are posed

Space Tethers And Space Elevators

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Author : Michel van Pelt
language : en
Publisher: Springer Science & Business Media
Release Date : 2009-06-12

Space Tethers And Space Elevators written by Michel van Pelt and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-06-12 with Technology & Engineering categories.

Michel van Pelt explains for the first time the principle of space tethers: what they are and how they can be used in space. He introduces non-technical space enthusiasts to the various possibilities and feasibility of space tethers including the technological challenges and potential benefits. He illustrates how, because of their inherent simplicity, space tethers have the potential to make space travel much cheaper, while ongoing advances in tether material technology may make even seemingly far-fetched ideas a reality in the not too distant future.

Analytical Investigation Of The Dynamics Of Tethered Constellations In Earth Orbit Phase 2

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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-23

Analytical Investigation Of The Dynamics Of Tethered Constellations In Earth Orbit Phase 2 written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-23 with categories.

This final report covers nine years of research on future tether applications and on the actual flights of the Small Expendable Deployment System (SEDS). Topics covered include: (1) a description of numerical codes used to simulate the orbital and attitude dynamics of tethered systems during station keeping and deployment maneuvers; (2) a comparison of various tethered system simulators; (3) dynamics analysis, conceptual design, potential applications and propagation of disturbances and isolation from noise of a variable gravity/microgravity laboratory tethered to the Space Station; (4) stability of a tethered space centrifuge; (5) various proposed two-dimensional tethered structures for low Earth orbit for use as planar array antennas; (6) tethered high gain antennas; (7) numerical calculation of the electromagnetic wave field on the Earth's surface on an electrodynamically tethered satellite; (8) reentry of tethered capsules; (9) deployment dynamics of SEDS-1; (10) analysis of SEDS-1 flight data; and (11) dynamics and control of SEDS-2. Lorenzini, Enrico C. and Gullahorn, Gordon E. and Cosmo, Mario L. and Estes, Robert D. and Grossi, Mario D. Unspecified Center NASA-CR-196509, NAS 1.26:196509 NAS8-36606...

Analytical Investigation Of The Dynamics Of Tethered Constellations In Earth Orbit

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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-17

Analytical Investigation Of The Dynamics Of Tethered Constellations In Earth Orbit written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-17 with categories.

This Quarterly Report on Tethering in Earth Orbit deals with three topics: (1) Investigation of the propagation of longitudinal and transverse waves along the upper tether. Specifically, the upper tether is modeled as three massive platforms connected by two perfectly elastic continua (tether segments). The tether attachment point to the station is assumed to vibrate both longitudinally and transversely at a given frequency. Longitudinal and transverse waves propagate along the tethers affecting the acceleration levels at the elevator and at the upper platform. The displacement and acceleration frequency-response functions at the elevator and at the upper platform are computed for both longitudinal and transverse waves. An analysis to optimize the damping time of the longitudinal dampers is also carried out in order to select optimal parameters. The analytical evaluation of the performance of tuned vs. detuned longitudinal dampers is also part of this analysis. (2) The use of the Shuttle primary Reaction Control System (RCS) thrusters for blowing away a recoiling broken tether is discussed. A microcomputer system was set up to support this operation. (3) Most of the effort in the tether plasma physics study was devoted to software development. A particle simulation code has been integrated into the Macintosh II computer system and will be utilized for studying the physics of hollow cathodes. Lorenzini, Enrico C. and Gullahorn, Gordon E. and Estes, Robert D. Unspecified Center DYNAMICAL SYSTEMS; SPACE PLATFORMS; TETHERED SATELLITES; TETHERING; ACCELERATION (PHYSICS); EARTH ORBITAL ENVIRONMENTS; FREQUENCIES; HOLLOW CATHODES; MACINTOSH PERSONAL COMPUTERS; PLASMA PHYSICS; SPACE SHUTTLES; THRUST CONTROL; VIBRATION DAMPING...