Abstract
Large-amplitudeself-sustaining periodic oscillationshavebeen observed in an unforced pitch-axis single-degreeof-freedom dynamic wind-tunnel rig. These limit-cycle oscillations and the associated bifurcations are caused by
aerodynamic phenomena and have been studied by constructing experimental bifurcation diagrams,where a system parameter (horizontal tailplane de� ection) is varied quasi statically and the steady-state response of the system
recorded. An innovative strategy based on these bifurcation diagramsis then used to identify amathematical model of the rig aerodynamics over a wide operating region. Good agreement is shown between numerical simulations of
the theoreticalmodeland experimental time histories over a large range of angle-of-attackand tailplane de� ections.
Translated title of the contribution | Experimental analysis and modeling of limit cycles in a dynamic wind-tunnel rig |
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Original language | English |
Pages (from-to) | 776 - 785 |
Number of pages | 10 |
Journal | Journal of Aircraft |
Volume | 40 (4) |
Publication status | Published - Jul 2003 |
Bibliographical note
Publisher: American Institute of Aeronautics and AstronauticsResearch Groups and Themes
- Engineering Mathematics Research Group