Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"Flight Mechanics"”.
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Micromechanical actuators for insect flight mechanics
… MEMS actuators to aid in the study of insect flight mechanics. Specifically, we are developing actuators that can stimulate the antennae of the crepuscular hawk moth Manduca Sexta. The possible mechanosensory function of antennae as airflow sensors has been suggested, and recent discoveries of …
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A Case Study on Atmospheric Flight Mechanics Conceptual Understanding
Atmospheric Flight Mechanics (AFM) is one of the cornerstones of aeronautical engineering and includes subjects like aerodynamic prediction, stability and control, dynamics, and vehicle design. These topics are critical to the success of aircraft development, so AFM is considered one of the most …
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Evolution of Flying Qualities Analysis: Problems for a New Generation of Aircraft
… and tested in a motion based, piloted flight simulator. This is the first time that the L1 controller has been evaluated for piloted handling qualities. Results showed that the adaptive controller was able to recover good flying qualities from a degraded aircraft. The final topic …
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Energy management for a multiple-pulse missile
… (non-pulsed) thrust rocket in horizontal lifting flight. The optimal control solution for this problem is developed. The problem is then approximated by a parameter optimization problem which is solved using a second-order, quasi-Newton method with constraint projection. The two solutions are …
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Towards verifiable adaptive control for safety critical applications
… tool is demonstrated in two design examples from flight mechanics, and verified in numerical simulation. The second tool developed is an algorithm for direct-adaptive control of plants with magnitude saturation constraints on multiple inputs. The algorithm is a non-trivial extension of an existing …
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On-board near-optimal climb-dash energy management
… extensively used in the solution of problems in flight mechanics. In particular the lowest-order attractive due to its simplicity, energy model is but because of the assumptions made (γ = 0.0) is of little use for realtime guidance. The method of matched asymptotic expansions can be used to …
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A new appreciation of inflow modelling for autorotative rotors
… is highly practical especially for studying flight mechanics and designing control systems for helicopters. However, scant attention has been so far paid to applying this model to analyse autorotative rotors (i.e. rotors in the windmill-brake state), which differ from powered helicopter …
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The assessment of a rotorcraft simulation model in autorotation by means of flight testing a light gyroplane
The simulation and flight testing of a light gyroplane aircraft is performed obtaining results regarding the flight dynamics attributes of the vehicle. The main aim of the work was to assess the ability of a mathematical model to simulate rotorcraft in the autorotative flight state. Additionally, …
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Modeling and Analysis for Optimization of Unsteady Aeroelastic Systems
… requirements associated with flapping flight. The extensive computational resources and time associated with the implementation of high-fidelity simulations limit the ability to perform optimization and sensitivity analyses in the early stages of MAV design. To overcome this and enable …
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Formalization of flight mechanical CS-25 requirements for assessments using flight simulation in preliminary aircraft design
… design departments to create high-fidelity flight simulation models integrated with flight control systems. These models are then used to simulate flight tasks, assessing the impact of design decisions on the aircraft's flight mechanics, and ensuring compliance with the certification …
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Inverse modelling and inverse simulation for system engineering and control applications
… applications, mainly in the fields of helicopter flight mechanics, aircraft handling qualities and associated issues in terms of model validation. However, the available methods still have some well-known limitations. The traditional methods based on the Newton-Raphson algorithm suffer from …
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Nonlinear Observers for Aircraft Maneuvering in Wind
… rigorous stability guarantees across the full flight envelope --- a major limitation for safety-critical aerospace applications. This dissertation addresses these gaps by advancing nonlinear observer design and flight dynamic modeling to estimate wind from aircraft motion with assured …
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Dynamics and control of robotic aircraft with articulated wings
… put forth in light of the efficiency of flapping flight at small scales. These aircraft are naturally equipped with the ability to rotate their wings about the root, a form of wing articulation. This thesis covers some problems concerning the performance, stability and control of robotic aircraft …
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Performance assessment of Mars entry systems with flap-based trajectory control
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-14 without embargo terms
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Assessment of aerosurface-based hypersonic control of blunt bodies for planetary entry
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms