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 10 of 10 for “"thrust vector"”.
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Heat transfer modeling of jet vane Thrust Vector Control (TVC) Systems
… herein, analyzes two models of a jetvane Thrust Vector Control (TVC) System. Computational modeling was accomplished using the latest version of the PHOENICS computer code, designated PHOENICS-84. The vane configurations studied, consisted of a simple wedge and a blunt bodied vane, with a …
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Modeling, Control, and Hardware Development of a Thrust-Vector Coaxial UAV
<p>This thesis introduces a unique thrust vector coaxial unmanned aerial vehicle (UAV) configuration and presents a comprehensive investigation encompassing dynamics modeling, hardware design, and controller development. Using the Newton-Euler method, a dynamic model for the UAV is derived to gain …
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Modeling, and classical and advanced control of a solid rocket motor thrust vector control system
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1993.
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Effects of multirate compensation on a digital autopilot for thrust vector control of a launch vehicle
Thesis. 1976. M.S.--Massachusetts Institute of Technology. Dept. of Aeronautics and Astronautics.
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A multi-loop guidance scheme using singular perturbation and linear quadratic regulator techniques simultaneously
… trajectories. Results are presented for a thrust-vector controlled high-performance missile without atmospheric effects, and for a single-stage-to-orbit hypersonic vehicle with both elevator and thrust-vector control. It is shown that the control algorithm results in a pitch loop feedback …
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Investigation of Trajectory and Control Designs for a Solar Sail to the Moon
… mathematical models were built in MATLAB around thrust vector control designs to get the concept sailcraft from Earth orbit toward the moon and transit simulations conducted. The third and most promising model developed a linear quadratic regulator controller to follow a logarithmic spiral …
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Modeling dispersions in initial conditions for air-launched rockets and their effect on vehicle performance
… results indicate that for a highly responsive thrust vector control (TVC) system, the rocket experiences negligible performance losses due to dispersions in ignition conditions. However, for a rocket with a less responsive TVC system, dispersions will result in significant performance loss by …
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Control-oriented Modeling of an Air-breathing Hypersonic Vehicle
… properties, and a propulsion system with maximum thrust-weight ratio. With all the subsystems already optimized, there is very little freedom for control designers to achieve their high performance goals. Integrated design methodologies focus on optimizing the overall design, as opposed to …
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Modeling and Control of Multi-Rotor UAVS: Design for Safety and Performance
… of multi-rotor UAVs: i) quadcopters with angled thrust vector; and ii) spinning multirotors with streamline-shape fuselage. Afterwards, equilibrium states and the constraints for both types of vehicles are introduced and using control design techniques, we develop ight control strategies to …
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Design of a Hybrid Micro Aerial Vehicle Concept with Multicopter and Vectored Thrust Modes of Flight
… and a rocket-like mode of flight controlled via thrust vectoring. We discuss the mechanical design of the REAVER prototype, including an initial trade study on propulsion methods, the mechanical design of the vehicle, and its simulated aerodynamic performance. We also evaluate the performance of …