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.
Results
Showing 1 to 20 of 346 for “"control law"”.
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Control law designs for active suspensions in automotive vehicles
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1988.
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A unified solution to constrained configuration control law design
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1992.
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Control Law Design and Validation for a Helicopter In-Flight Simulator
… the dynamic response of another aircraft. A control system designed to give RASCAL, a JUH-60A Black Hawk helicopter based at Moffett Field, CA, in-flight simulation capabilities has been designed, optimized and validated in this research. A classical explicit model following control system …
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Development of automatic vehicle headway control law and a simulation tool
… eliminate human errors by introducing a computer control system. The purpose of this research was to develop and evaluate a control law and a simulation tool for the study of automatic vehicle headway control. This research considers longitudinal control of a platoon of vehicles on automated …
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A model-following digital control law for an EBF-STOL aircraft
A method is presented for augmenting the control of an EBF-STOL aircraft using a real model-following technique. The method is based on the solution of the discrete matrix Riccati equation to generate the required feedback and feedforward gains. The feedback gains provide a means of closing the …
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Kalman filter non-linear control law for a gyroscope pulse width modulation torque loop
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1989.
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Aircraft loss-of-control prevention via backup flight control law design and flight envelope protection
… seeks to tackle the aircraft loss-of-control problem by adaptive backup flight control law design and flight envelope protection for aircraft with physical damage. In the first part of the study, a backup lateral-directional flight control law for mid-sized transport aircraft with …
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Fast half-loop maneuvers for the F/A-18 fighter aircraft using a singular perturbation feedback control law
… of this study is to develop a nonlinear feedback control law for the F / A-I8 fighter aircraft that performs a fast half-loop maneuver. This feedback law is developed using a singular perturbation approach. A secondary purpose of this study is to establish a baseline for time optimal half-loop …
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Performance and Robustness Assessment for a Robust Port-Hamiltonian Flight Controller
… conducting research in the field of nonlinear control of unmanned air vehicles are constantly searching to improve robustness and performance of flight control systems through new control laws. A control law can be designed to provide robustness guarantees due to the structure of the aircraft …
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Formation Fidelity of Simulated Unmanned Autonomous Vehicles through Periodic Communication
Controlling a formation of unmanned autonomous vehicles is a daunting prospect even when the formation operates under ideal conditions. When communication between vehicles is limited, maintaining a formation becomes difficult. In some cases the formation may become unstable. While a control law may …
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A controller design procedure for nonlinear stochastic systems
An improved method for designing controllers for nonlinear stochastic systems is developed and analyzed. The resulting controller consists of a nonlinear control law coupled with an adaptive state estimator. The nonlinear control law is developed first. Using Taylor series expansion, linear …
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Adaptive Inverse Dynamics Control Scheme of Two-Compartment Lung System
A study of using an adaptive inverse dynamics control technique to a two-compartment modeled respiratory system. Based on the nonlinear respiratory model and desired respiratory volumes, the adaptive inverse dynamics control scheme consisting of a control law and an adaptation law is then applied. …
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Time optimal control for asymptotic tracking of linear systems with input saturation
… and design composite nonlinear feedback controllers. We have explored the problem of asymptotic time optimal tracking for a class of linear system with actuator nonlinearities. A formula on the optimal settling time is given and the corresponding composite nonlinear feedback control law …
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Cooperative control of multi-agent systems with time-delays
… this dissertation, we designed two cooperative control algorithms for multi-agent systems with time-delays. The first one is Robust Sliding-Mode Cooperative Control for Multiple Time-Delay Systems with Model Uncertainties and Disturbance, in which, it designed a sliding mode cooperative control …
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Passivity-Based Control of Small Unmanned Aerial Systems
… the computational cost of the resultant controller}. Passivity-based control presents a method to implement a static, nonlinear state feedback control law that stabilizes the motion of an aircraft with a large region of attraction. {color{black} The energy-based control scheme is applied …
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Inverse and variable structure trajectory control of a flexible robotic manipulator
This thesis introduces two schemes that control the end effector trajectory and stabilize a two-link flexible robotic arm. They are (i) The Inverse Trajectory Control scheme and (ii) The Variable Structure System (VSS) scheme; The Inverse Trajectory Control scheme develops a control law based on …
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Orbital transfer trajectory optimization
… for impulsive engines because a continuous control law must be found and long integrations are necessary to determine whether the control law works or not. Previous work on optimizing low thrust orbital transfers has led to the development of control laws for continuous thrusting including …
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Nonlinear control and synchronization of multiple Lagrangian systems with application to tethered formation flight spacecraft
… theory, with applications to cooperative control of multi-agent systems and synchronization of interconnected dynamics such as tethered formation flight. Inspired by stable combinations of biological systems, contraction nonlinear stability theory provides a systematic method to reduce …
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Modeling, Identification, and Control of an Unmanned Surface Vehicle
… addresses the modeling, identification, and control of an automated planing vessel. To provide motion models for trajectory generation and to enable model-based control design for trajectory tracking, several experimentally identified models are compared over a wide range of speed and planing …
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Optimal Control for a Two Player Dynamic Pursuit Evasion Game; The Herding Problem
… analyzed and we came up with an optimal control law for the pursuer is obtained so that the evader is driven to the desired destination position in the x-y grid following the local shortest path in the Euler Lagrange sense. Then, a non-holonomic realization of the two agents is proposed. …
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