Results 181 to 190 of about 2,101 (233)
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An Efficient Model of Tethers for Tethered Satellite Systems
Advances in Astronautics Science and Technology, 2018This paper concerns about modeling of tethered satellites systems (TSS). In this paper, tethers of TSS are modeled as chains of elastic rods connected by rigid joints. A group of spatial vectors are used to describe displacement, orientation and deformation of the rods, which can avoid the coupling of trigonometric functions of Euler angles.
Ma Shuguang, Wang Tianshu
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Tether satellite system collision study
Acta Astronautica, 1999A study was performed to determine the probability of collision with resident space objects and untrackable debris for the tether component of the Tethered Satellite System (TSS) after it broke away from the Space Shuttle orbiter (mission STS-75) in February 1996.
V.A. Chobotov, D.L. Mains
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Preliminary orbit determination of a tethered satellite
Applied Mathematics and Computation, 2007Interest in the deployment of tethered satellites has led to a need for preliminary orbit determination methods which are capable of distinguishing tethered satellites from untethered ones. Classical preliminary orbit determination methods, which are used for Keplerian satellites, generally require two or more position vectors along with their ...
C. Qualls, David A. Cicci
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Three-dimensional vibrations of tethered satellite systems
Journal of Guidance, Control, and Dynamics, 1991The three-dimensional free vibrations of an orbiter-towed tethered satellite system with nominally vertical tether during stationkeeping phase are studied analytically. The tether is modeled as an elastic continuum with mass and the orbiter and the subsatellite as two concentrated masses.
PASCA M, PIGNATARO M, LUONGO, Angelo
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Journal of Spacecraft and Rockets, 1989
T following three papers on tethered satellite systems grew out of session 110 of the AIAA 26th Aerospace Sciences Meeting, held in Reno, Nevada, in January 1988. Interest in such systems, which goes back several years, has been evinced by NASA, various Italian space research activities, and, most recently, by the Japanese. While no tethered spacecraft
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T following three papers on tethered satellite systems grew out of session 110 of the AIAA 26th Aerospace Sciences Meeting, held in Reno, Nevada, in January 1988. Interest in such systems, which goes back several years, has been evinced by NASA, various Italian space research activities, and, most recently, by the Japanese. While no tethered spacecraft
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Detection of Tethered Satellite Systems
The Journal of the Astronautical Sciences, 2004The detection and identification of tethered satellite systems is a problem of current interest. Most previous studies focused on the detection and identification of one tethered satellite system using the observations of one satellite in the system. Here, we consider the problem of determining which of two or more satellites that are observed to be in
Nammi J. Choe +2 more
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Nonlinear stabilization of tethered satellites
Proceedings of the 27th IEEE Conference on Decision and Control, 2003A set of dynamic equations governing the dynamics of a tethered satellite system and stabilizing tension control laws in feedback form are derived. The tether is assumed rigid and massless, and the equations of motion are derived using the system Lagrangian.
D.-C. Liaw, E.H. Abed
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Tension sensor for tethered satellites
[1989] Proceedings. The Twenty-First Southeastern Symposium on System Theory, 2003The design, construction, and testing of a tension sensor for sensing tension in a flexible tether connecting two orbiting satellites are presented. The analog sensor measures the tension profiles for deployment, retrieval, and disturbances of the tethered satellite system.
M. Greene, D. Kromann
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Current collection by the tethered satellite
25th Anniversary, IEEE Conference Record - Abstracts. 1998 IEEE International Conference on Plasma Science (Cat. No.98CH36221), 1998Summary form only given, as follows. Both measurements and models have revealed that the tethered satellite in the TSS-1R mission collected a large current, 2-3 times in excess of the current predicted by the theory of Parker and Murphy. Using 3-D particle-in-cell simulations the origin of the current enhancement is analyzed in detail. Flow of currents
W. Leung, N. Singh
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ATMOSPHERIC PERTURBATION AND CONTROL OF A SHUTTLE/TETHERED SATELLITE
IFAC Proceedings Volumes, 1979A simplified model of the strong atmospheric perturbation of a small satellite attached to the orbiter by a long, straight tether predicts undesirable uncontrolled libration motions similar to those from sophisticated models. The simplified model is used to compare performance limitations of two simple control systems that rely only on tether tension ...
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