Loading...
Please wait, while we are loading the content...
Similar Documents
Precision tethered satellite attitude control. ph.d. thesis
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Kline-Schoder, Robert J. |
| Copyright Year | 1990 |
| Description | Tethered spacecraft possess unique dynamic characteristics which make them advantageous for certain classes of experiments. One use for which tethers are particularly well suited is to provide an isolated platform for spaceborne observatories. The advantages of tethering a pointing platform 1 or 2 km from a space shuttle or space station are that, compared to placing the observatory on the parent spacecraft, vibrational disturbances are attenuated and contamination is eliminated. In practice, all satellites have some requirement on the attitude control of the spacecraft, and tethered satellites are no exception. It has previously been shown that conventional means of performing attitude control for tethered satellites are insufficient for any mission with pointing requirements more stringent than about 1 deg. This is due mainly to the relatively large force applied by the tether to the spacecraft. A particularly effective method of implementing attitude control for tethered satellites is to use this tether tension force to generate control torques by moving the tether attach point relative to the subsatellite center of mass. A demonstration of this attitude control technique on an astrophysical pointing platform has been proposed for a space shuttle flight test project and is referred to as the Kinetic Isolation Tether Experiment (KITE). |
| File Size | 5744687 |
| Page Count | 150 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19950006353 |
| Archival Resource Key | ark:/13960/t8qc4xm1j |
| Language | English |
| Publisher Date | 1990-03-01 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Design, Testing And Performance Pointing Control Systems Vibration Damping Control Systems Design Spacecraft Contamination Center of Mass Satellite Attitude Control Spaceborne Telescopes Tethering Tetherlines Tethered Satellites Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Thesis |
