Results 191 to 200 of about 2,101 (233)

Tethered Satellites in the geophysical environment

Il Nuovo Cimento C, 1993
A short presentation is given of the basic physical principle of a Tethered-Satellite System. The motion equations are summarized. A variety of physical phenomena in the upper atmosphere and ionosphere, as well as related to geomagnetism and gravity field will benefit by such type of missions; they are briefly illustrated and discussed.
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Extension of tethered satellites in the atmosphere

Acta Astronautica, 2003
An important application of tethered satellites isatmospheric studies by extension of a subsatellite into the atmosphere through tether while the parent spacecraft *ies at an altitude high enough so that the deleterious e+ects of the atmosphere on it are inconsequential. The key issue in the operation is the swift extension of the tether.
Pradeep, S, Kumar, K
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Constrained Motion of Tethered Satellites

Volume 6: 5th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, Parts A, B, and C, 2005
The orbital motion of tethered satellites is a highly complex nonlinear problem. This investigation sets out to formulate a new method that significantly simplifies the dynamic analysis of tethered satellite systems. This is accomplished using the fundamental equation for constrained dynamic systems, which was formulated by Udwadia and Kalaba.
Aaron D. Schutte, Brian A. Dooley
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Various Methods of Controlling the Deployment of a Tethered Satellite

Journal of Vibration and Control, 2003
The deployment of a subsatellite from a mother spaceship moving on a circular orbit is a delicate operation for a tethered satellite system because this process leads to an unstable motion with respect to the stable radial relative equilibrium of such a system if the tether length is kept constant.
Barkow, B., Steindl, A., Troger, H., Wiedermann, G.   +3 more
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Tethers for Small Satellite Applications

1995
This paper begins with a sketch of the history of space tether concepts and then describes the four tether orbital flight tests flown in 1992-94 (TSS-1, SEDS-1, PMG, and SEDS-2). It reviews currently funded flight experiments and studies aimed at near-term flights. Next it provides a brief tutorial on some key aspects of space tether concepts.
Carroll, Joseph, Oldson, John
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Deployment and Retrieval of Shuttle Supported Tethered Satellites

Journal of Guidance, Control, and Dynamics, 1982
Summary: The general dynamical model is used to investigate the deployment and retrieval dynamics and control of the tether connected shuttle/subsatellite system. Control of the in-plane motion is provided by letting the difference between the rate of change of the undeformed length of the tether and a commanded length rate vary linearly with the state
Misra, A. K., Modi, V. J.
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Dynamics of variable-length tethers with application to tethered satellite deployment

Communications in Nonlinear Science and Numerical Simulation, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tang, Jiali, Ren, G. X., Zhu, W. D., Ren, Hui   +3 more
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Aerogravity-Assist Maneuvering of a Tethered Satellite System

Journal of Spacecraft and Rockets, 2004
Two new implementations of a tethered satellite system to provide aeroassist during a planetary flyby are investigated. In each mission scenario the interaction of the Martian atmosphere with an aerodynamic lifting surface, which is tethered to an orbiter, is used to perturb the flight path of the system. The aerodynamic forces generated by interacting
Jokic, Michael D., Daniel, W. J. T.
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Identification and orbit determination of a tethered satellite system

Applied Mathematics and Computation, 2001
Orbital motion of a tethered satellite system, composed of two satellites and an inextensible tether, is considered by using a perturbed two-body model. This approach is adopted so that the determination of the orbit of one of the satellites can be attempted without using observations of the motion of the other satellite in the system.
S. Cho, J. E. Cochran Jr., David A. Cicci   +2 more
exaly   +3 more sources

Controlling short-tethered satellites

Acta Astronautica, 1980
Abstract Because of the interference with the spacecraft, especially particle experiments have to be performed on cable booms. Also for other extravehicular activities telescopic arms, bar linkages and tethers are used. The objective of this paper is to describe a method of controlling and manoeuvring short-tethered systems.
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