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Attitude control for a solar-sail spacecraft
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ploen, Scott Mettler, Edward |
| Copyright Year | 2004 |
| Description | A report discusses the attitude-control system of a proposed spacecraft that would derive at least part of its propulsion from a solar sail. The spacecraft would include a bus module containing three or more reaction wheels, a boom attached at one end to the bus module and attached at its other end to a two-degree-of-freedom (DOF) gimbal at the nominal center of mass of a sail module. Each DOF of the gimbal could be independently locked against rotation or allowed to rotate freely. By using the reaction wheels to rotate the bus when at least one gimbal DOF was in the free state, the center of mass (CM) of the spacecraft could be shifted relative to the center of pressure (CP) on the solar sail. The resulting offset between the CM and CP would result in a solar torque, which could be used to change the attitude of the spacecraft. The report discusses numerous aspects of the dynamics and kinematics of the spacecraft, along with the relationships between these aspects and the designs of such attitude-control- system components as sensors, motors, brakes, clutches, and gimbals. |
| File Size | 84180 |
| Page Count | 1 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20110020419 |
| Archival Resource Key | ark:/13960/t03z3721s |
| Language | English |
| Publisher Date | 2004-08-01 |
| Access Restriction | Open |
| Subject Keyword | Man/system Technology And Life Support Solar Sails Attitude Inclination Degrees of Freedom Torque Attitude Control Gimbals Center of Mass Propulsion Rotation 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 |
