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Development of modal test techniques for validation of a solar sail design
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Gaspar, James L. Mann, Troy Pappa, Richard Wilkie Sr., W. Keats Behun, Vaughn |
| Copyright Year | 2004 |
| Description | This paper focuses on the development of modal test techniques for validation of a solar sail gossamer space structure design. The major focus is on validating and comparing the capabilities of various excitation techniques for modal testing solar sail components. One triangular shaped quadrant of a solar sail membrane was tested in a 1 Torr vacuum environment using various excitation techniques including, magnetic excitation, and surface-bonded piezoelectric patch actuators. Results from modal tests performed on the sail using piezoelectric patches at different positions are discussed. The excitation methods were evaluated for their applicability to in-vacuum ground testing and to the development of on orbit flight test techniques. The solar sail membrane was tested in the horizontal configuration at various tension levels to assess the variation in frequency with tension in a vacuum environment. A segment of a solar sail mast prototype was also tested in ambient atmospheric conditions using various excitation techniques, and these methods are also assessed for their ground test capabilities and on-orbit flight testing. |
| File Size | 1027650 |
| Page Count | 11 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20040073458 |
| Archival Resource Key | ark:/13960/t5jb1416z |
| Language | English |
| Publisher Date | 2004-01-01 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Design, Testing And Performance Fabrication Dynamic Structural Analysis Flight Tests Solar Sails Actuators Ground Tests Quadrants Vacuum Prototypes Piezoelectric Actuators Spacecraft Structures Design Analysis Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
