Dissertation
Control system design for aircraft with elevator failure
Doctor of Philosophy (Ph.D.), Drexel University
Jun 2022
DOI:
https://doi.org/10.17918/00001172
Abstract
Airplane accidents are infrequent but the accidents due to "loss of control" contribute to a significant portion of them, especially the fatal ones. This loss of control is usually caused by pilot error, mechanical failures, or a combination of the two. This work will focus on loss of control prevention and recovery as a result of a stuck elevator. The elevator is the control surface primarily responsible for adjusting pitch and its dysfunction represents a loss of 50 This work is conducted on a 12 state nonlinear model of the F/A-18 HARV. First, a study of the geometry of the level-flight equilibrium set is presented to show its uniqueness. Open loop simulation is then conducted to provide a baseline performance for comparison. Then the controller design is laid out and closed loop stability is shown based on a linearized model. Additionally, performance limitations are discussed based on an approximate parameterization of the system. Closed loop simulation is conducted afterwards to validate the performance of the robust controller for a variety of initial conditions.
Metrics
42 File views/ downloads
73 Record Views
Details
- Title
- Control system design for aircraft with elevator failure
- Creators
- Nilan Surantha Jayasuriya
- Contributors
- Bor-Chin Chang (Advisor)
- Awarding Institution
- Drexel University
- Degree Awarded
- Doctor of Philosophy (Ph.D.)
- Publisher
- Drexel University; Philadelphia, Pennsylvania
- Number of pages
- xii, 81 pages
- Resource Type
- Dissertation
- Language
- English
- Academic Unit
- College of Engineering (1970-2026); Mechanical Engineering (and Mechanics) (1970-2026); Drexel University
- Other Identifier
- 991018526908204721