Aeroplanes that are aerodynamically stable in longitudinal dynamics at subsonic velocities suffer from reduced manoeuvrability at supersonic velocities. By using a closed-loop automatic control system, an aeroplane that is unstable at subsonic velocities can be stabilized, allowing for both safe subsonic flight characteristics and high manoeuvrability at supersonic velocities. However, the closed-loop system might be sensitive to uncertain parameter values in the dynamic model used for control system design. This Master’s Thesis explores how robust stability with respect to parametric uncertainties can be analyzed for closed-loop controlled, aerodynamically unstable aeroplanes by using μ-analysis and Linear Parameter Varying modelling, implemented in Matlab and Simulink.
| Identifer | oai:union.ndltd.org:UPSALLA1/oai:DiVA.org:liu-204604 |
| Date | January 2024 |
| Creators | Widlund Mellergård, Wilhelm |
| Publisher | Linköpings universitet, Reglerteknik |
| Source Sets | DiVA Archive at Upsalla University |
| Language | English |
| Detected Language | English |
| Type | Student thesis, info:eu-repo/semantics/bachelorThesis, text |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/openAccess |
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