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 “"optimal control approach"”.
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An Optimal Control Approach to the Off-Farm Labor Migration Problem
Made available in DSpace on 2014-12-10T22:03:06Z (GMT). No. of bitstreams: 1 7317649.pdf: 4218679 bytes, checksum: dfb6ebd1d03f669128cfe14ac97919a0 (MD5) Previous issue date: 1973
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An Optimal Control Approach to Implant Shape Design : Modeling, Analysis and Numerics
… shape design problem can be described as an optimal control problem with constraints given by the necessary optimality conditions in polyconvex hyperelasticity with nonlinear pressure-type boundary conditions. Important theoretical results, such as existence of solutions and higher …
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A pseudo-optimal control approach for a redundant degree-of-freedom in a gimbaled mechanical system
… large platform excursions while avoiding the uncontrollable condition of gimbal lock. The thesis investigates the benefits of applying a Linear Quadratic Regulator (LQR) to the control of the redundant degree-of-freedom present in a four gimbal inertial navigation system. Equations of motion for …
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Analysis and numerical approximations of exact controllability problems for systems governed by parabolic differential equations
The exact controllability problems for systems modeled by linear parabolic differential equations and the Burger's equations are considered. A condition on the exact controllability of linear parabolic equations is obtained using the optimal control approach. We also prove that the exact control is …
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System Characterization, Control and Optimal Feed -Rate Scheduling for High -Speed Machining and Nano Positioning
Finally, a provably-optimal feedrate-optimization (trajectory planning) algorithm is developed to exploit the capabilities of a given physical motion system. System capabilities and process requirements are modeled and formulated as constraints to drive the algorithm. The resulting trajectory makes …
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A Polynomial Chaos Approach to Control Design
A method utilizing H2 control concepts and the numerical method of Polynomial Chaos was developed in order to create a novel robust probabilistically optimal control approach. This method was created for the practical reason that uncertainty in parameters tends to be inherent in system models. As …
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Fuel Shortages During Hurricanes: Epidemiological Modeling and Optimal Control
… evaluate the SIR dynamic parameters. Finally, an optimal control approach for refueling based on a vaccination analogue is presented to effectively reduce the fuel shortages under a resource constraint. The control model estimates the duration and the level of intervention required to mitigate …
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Dynamical large deviations and phase separation in systems of interacting particles
… fluctuation theory (MFT). Additionally we study optimal control forces in such ensembles. First, we consider a one dimensional system of hard-core diffusing particles and focus on the large deviations of the clustering of all the particles. Using an optimal control approach to this large …
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Economics of innovation: competition, clubs and the environment
… with product differentiation. Using an optimal control approach with product differentiation and firm outlook we examine conditions that maximize social welfare. When firm(s) have the same discount rate regardless of market structure, a monopoly will develop more innovative products. …
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Reconstructing dynamics from data: Algorithms for the prediction, estimation, and correction of chaotic systems
… their application. As sensors become ubiquitous, approaching this problem from a data-driven perspective may offer improved accuracy compared to traditional modelbased forecasting. It is still of great importance that these data-driven methods provide interpretable and meaningful analysis of the …
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Optimisation of heat exchanger network maintenance scheduling problems
… Therefore, these problems are in ac- tuality optimal control problems. To suitably solve these problems, a feasible path sequential mixed integer optimal control approach is proposed. This methodology is coupled with a simple heuristic approach and applied to a range of heat exchanger network …
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A control system viewpoint for manipulating heat equation and maximum entropy principle for design of experiments
… of a one-dimensional rod through feedback control methods. In the second part of this work, we consider an unrelated problem of the design of experiments with imputable features. In particular, in the first part of this work, we use the central difference method and basis function approach …
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Design and Control of Capacitive Power Transfer Systems
… but more attention is needed in relation to the control area of it. This thesis is mainly focused on the study and development of various control techniques for CPT systems. The CPT systems examined in this thesis have adopted a Class-E inverter approach for high-frequency AC signal generation …
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Control of constrained moving-boundary process with application to steel continuous casting
… as operational safety. Most of the cooling spray control techniques currently used in the steel industry are effectively open-loop due to the lack of reliable measurements to enable feedback. Namely, the high temperatures, the variable surface emissivity, the scale formation, and the steam from …
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Machine-Aware Enhancing of Quantum Computers
… last requirements, proposing advances in quantum optimal control protocols for high-fidelity gates and machine-learning based qubit readout. The methods used for these improvements exploit general mathematical machinery that can be specialized for the specific quantum device to obtain …