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On the stability and pointing of an attached double-gimbal experiment package
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Groom, N. J. Nene, V. D. Shaughnessy, J. D. |
| Copyright Year | 1972 |
| Description | The pointing capability of a double gimbal experiment isolation and control system of the Apollo telescope mount (ATM) type was investigated. Three composite structural models of an experiment package connected through frictionless gimbals to a carrier vehicle (including a rigid package-rigid carrier model, a rigid package-flexible carrier model, and a flexible package-flexible carrier model) were used, and a linear model of the nominal ATM gimbal control system is considered. A linear stability analysis was performed to verify stability of the control system with nominal gains. Transform techniques were used to compute pointing errors onboard the experiment package due to random crew motions input into the carrier vehicle. Results of the investigation indicate that there is no stability problem due to flexible coupling of the experiment package and the carrier, and that the ATM-type system is capable of pointing accuracies better than 0.1 arc second. |
| File Size | 1628000 |
| Page Count | 46 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19720014213 |
| Archival Resource Key | ark:/13960/t3tt9cq54 |
| Language | English |
| Publisher Date | 1972-04-01 |
| Access Restriction | Open |
| Subject Keyword | Space Sciences Pointing Control Systems Stability Supports Gimbals Telescopes Models Apollo Spacecraft Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
