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Aeroservoelastic wind-tunnel tests of a free-flying, joined-wing sensorcraft model for gust load alleviation
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Castelluccio, Mark A. Heeg, Jennifer Coulson, David A. Scott, Robert C. |
| Copyright Year | 2011 |
| Description | A team comprised of the Air Force Research Laboratory (AFRL), Boeing, and the NASA Langley Research Center conducted three aeroservoelastic wind-tunnel tests in the Transonic Dynamics Tunnel to demonstrate active control technologies relevant to large, exible vehicles. In the first of these three tests, a full-span, aeroelastically scaled, wind-tunnel model of a joined-wing SensorCraft vehicle was mounted to a force balance to acquire a basic aerodynamic data set. In the second and third tests, the same wind-tunnel model was mated to a new, two-degree-of-freedom, beam mount. This mount allowed the full-span model to translate vertically and pitch. Trimmed flight at -10% static margin and gust load alleviation were successfully demonstrated. The rigid body degrees of freedom required that the model be own in the wind tunnel using an active control system. This risky mode of testing necessitated that a model arrestment system be integrated into the new mount. The safe and successful completion of these free-flying tests required the development and integration of custom hardware and software. This paper describes the many systems, software, and procedures that were developed as part of this effort. The balance and free ying wind-tunnel tests will be summarized. The design of the trim and gust load alleviation control laws along with the associated results will also be discussed. |
| File Size | 17830077 |
| Page Count | 36 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20110009997 |
| Archival Resource Key | ark:/13960/t22c40v7v |
| Language | English |
| Publisher Date | 2011-04-04 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Design, Testing And Performance Wings Transonic Wind Tunnels Wind Tunnel Tests Joined Wings Free Flight Aeroservoelasticity Flight Control Gust Loads Mach Number Dynamic Pressure Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
