Abstract
The purpose of this study is to measure the unsteady force acting on a slender delta wing in two degree-of-freedom (DoF) motion. A serialtype robot manipulator was used to oscillate the model in two modes; one is roll-yaw coupled lateral motion and the other is pitch-heave coupled longitudinal motion. Unsteady forces and moments were measured by a six-component balance and the effects of oscillation frequency and amplitude were evaluated. In the 2-DoF roll-yaw coupled mode, hysteresis loop was noted at high angles of attack and changes of rolling moment are delayed as compared with the 1-DoF case. In the pitch-heave coupled experiment, it was found that the effect of pitch rate on unsteady force is negligible at the frequency and amplitude ranges covered in this experiment.
| Original language | English |
|---|---|
| Pages | 1569-1576 |
| Number of pages | 8 |
| Publication status | Published - 2012 |
| Event | 28th Congress of the International Council of the Aeronautical Sciences 2012, ICAS 2012 - Brisbane, Australia Duration: 2012 Sep 23 → 2012 Sep 28 |
Conference
| Conference | 28th Congress of the International Council of the Aeronautical Sciences 2012, ICAS 2012 |
|---|---|
| Country/Territory | Australia |
| City | Brisbane |
| Period | 12/9/23 → 12/9/28 |
Keywords
- Delta wing
- Dynamic wind-tunnel testing
- Multi-degree-of-freedom
- Robotic manipulator
- Vortex breakdown
ASJC Scopus subject areas
- Aerospace Engineering
- Control and Systems Engineering
- Electrical and Electronic Engineering
- Materials Science(all)