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Engine yaw augmentation for hybrid-wing-body aircraft via optimal control allocation techniques
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Taylor, Brian R. Yoo, Seung-Yeun |
| Copyright Year | 2011 |
| Description | Asymmetric engine thrust was implemented in a hybrid-wing-body non-linear simulation to reduce the amount of aerodynamic surface deflection required for yaw stability and control. Hybrid-wing-body aircraft are especially susceptible to yaw surface deflection due to their decreased bare airframe yaw stability resulting from the lack of a large vertical tail aft of the center of gravity. Reduced surface deflection, especially for trim during cruise flight, could reduce the fuel consumption of future aircraft. Designed as an add-on, optimal control allocation techniques were used to create a control law that tracks total thrust and yaw moment commands with an emphasis on not degrading the baseline system. Implementation of engine yaw augmentation is shown and feasibility is demonstrated in simulation with a potential drag reduction of 2 to 4 percent. Future flight tests are planned to demonstrate feasibility in a flight environment. |
| File Size | 3065612 |
| Page Count | 33 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20110016018 |
| Archival Resource Key | ark:/13960/t8md3x97f |
| Language | English |
| Publisher Date | 2011-08-08 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Flight Tests Stability Body-wing Configurations Control Systems Design Fuel Consumption Yaw Drag Reduction Simulation Airframes Optimal Control Center of Gravity Control Theory Thrust Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
