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Dynamics Of Tethered Satellite Systems

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Author by : Vladimir Aslanov
Languange Used : en
Release Date : 2012-10-16
Publisher by : Elsevier

ISBN : 9780857096005

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...

Dynamics Of Tethered Satellite Systems

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Author by : James William Woodburn
Languange Used : en
Release Date : 1989
Publisher by :

ISBN : OCLC:22214802

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Dynamics Of Tethered Satellite Systems

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Author by : V. S. Aslanov
Languange Used : en
Release Date : 2012-10-30
Publisher by : Woodhead Publishing

ISBN : 0081016077

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Dynamics Of Tethered Satellite Systems

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Author by :
Languange Used : en
Release Date : 2012
Publisher by :

ISBN : OCLC:1066603984

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Dynamics Of Space Tether Systems

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Author by : Vladimir Vasilʹevich Belet︠s︡kiĭ
Languange Used : en
Release Date : 1993
Publisher by : Univelt

ISBN : UVA:X002455451

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Dynamics Of Tethered Space Systems

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Author by : Hans Troger
Languange Used : en
Release Date : 2010-04-29
Publisher by : CRC Press

ISBN : 9781439836866

Dynamics And Control Of Tethered Satellite System

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Author by : Royce L. Abel
Languange Used : en
Release Date : 2005
Publisher by :

ISBN : OCLC:65216702

"Tethered Satellite Systems (TSS) has been an ongoing project around the world for many decades. This study examined the dynamics an dcontrols of tethered satellites. The equations of motion were developed and simulated with no control and small eccentric orbits. A control law was derived by associating the Hamiltonian of the system to a Lyapunov Funciton. This control law was then simulated to demonstrate ability and robustness. The tethered system can be retrieved and deployed in a small number of orbits, and return from a perturbation quickly. Examination of a non thruster controlled system resulted in asymptotic convergence in retrieval and station keeping, but the inplane angle, orbital plane, converged during deployment. Time to complete the phases was similar to out of plane thruster controlled. The maximum eccentricities were found for retrieval and deployment when the system started at the perihelion of the orbit with a 100Km tether. Drag was added to the model because it effects the dynamics when the subsatellite is very close to earth. Most of the effects are seen in the inplane angle. At fully deployed the inplane angle was small. A Lyapunov controller for tether satellites works very well under ideal conditions. Once aerodynamics are included into the model, offsets and oscillations occur because of the new forces that unbalance the system compared to the model without drag"--Abstract....

Dynamics And Control Of Tethered Satellite Systems

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Author by : Euisok Kim
Languange Used : en
Release Date : 1993
Publisher by :

ISBN : OCLC:32494056

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Satellite Tether Systems

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Author by : Kalyan K. Mankala
Languange Used : en
Release Date : 2006
Publisher by :

ISBN : 0542720477

Over the last few decades, researchers have realized many potential applications of tethered satellite systems that include atmospheric data collection, placing satellites from low earth orbits into higher orbits, capture of non-functional satellites for service and repair, satellite reboost and deorbiting. The deployment/retrieval dynamics of such systems due to gravity gradient forces is highly nonlinear in nature. Also, due to orbital motion, the longitudinal and transverse motions are coupled. With only boundary control, the tethered satellite system forms a highly underactuated system. In this thesis, we derive and validate the deployment dynamics of such a system following two different basic approaches---Newton's laws and Hamilton's principle. The complexity of the system is studied in an incremental nature using three different models. The problem of controlled deployment/retrieval is approached using a partial feedback linearizing controller. The problem of station keeping is tackled in a more novel way by developing a boundary controller based on the linearization of the infinite dimensional tether system around radial relative equilibrium configuration. Lyapunov function is used to study the stability of the controller on the linearized system. Effectiveness of controllers developed for deployment and station keeping are verified through simulations. We have also studied the dynamics of tethered satellite systems in the presence of electrodynamic forces due to the magnetic field of the earth. We propose a novel method to the control the tether configurations in the presence of electrodynamic forces....

Dynamics Of Tethered Space Systems

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Author by : Hans Troger
Languange Used : en
Release Date : 2010-04-29
Publisher by : CRC Press

ISBN : 143983685X

During many of the earliest American and Russian space missions, experiments were performed using cables to connect people and objects to spacecraft in orbit. These attempts generated considerable information about the formation of tethered systems and basic problems with tether orientation and gravity-gradient stabilization. During the 1970s, interest in tethered space systems (TSS) came to the forefront with an international project that involved the hanging of a probe from a low-orbit satellite to collect data on the Earth and its atmosphere. Since that time, TSS has grown to become its own area of research. Dynamics of Tethered Space Systems brings together the work of seven leading researchers working at the forefront of TSS. Together, they provide a brief yet thorough introduction to TSS. Then, combining theory with experimental approaches important to industry, they cover the dynamics of the mechanical, physical, and mathematical modeling approaches involved in tethered satellite deployment. They present several models from the literature, focusing on the simplest but most important system: two satellites in orbit around the Earth. Discussion then expands to cover more complex examples. Along the way, the authors consider a number of important topics, such as energy production resulting from interaction between the system and Earth’s magnetic field and momentum transfer in relation to satellites, microgravity laboratories, and futuristic applications such as the space elevator. They also look at a number of challenges, including those with deployment and energy dissipation. Providing approaches to theoretical models and experimental methods, the text includes a wealth of essential equations and detailed analyses of forces acting on tethered objects in motion. It provides both a starting point for further research and the tools needed to apply that research to the applications of tomorrow....