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 424 for “"open loop"”.
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Optimal open-loop control of industrial robots
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1983.
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The inefficiency of open-loop fMRI experiments
… to study the DMN could only be conducted in an open-loop format. The purpose of this study was to demonstrate the potential statistical advantages of real-time fMRI studies to conduct closed-loop experiments to directly test putative DMN functions. Using both fMRI simulations and large archival …
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Stability optimization of open-loop controlled walking robots
This thesis presents fundamentally new open-loop stable one-legged and two-legged walking robots. It thus demonstrates that the concept of open-loop control is applicable to a much wider range of systems than was conceived before. An open-loop stable control strategy does not use any feedback nor …
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Optimization of a self-tuning open-loop controller
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1995.
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Open loop aspects of two-wheeled vehicle stability characteristics
Bicycles and motorcycles constitute one of the most popular means of transportation in the world. While the literature regarding two wheeled vehicle behavior is extensive, to this day, no consensus exits in the literature as to what principles govern the steering and stability characteristics of …
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On open-loop admission control into a queueing system
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1992.
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Rigorous Design of a Compact, Low-Speed, Open-Loop Wind Tunnel
Currently available literature regarding the design of fluid flow systems tend to focus on the specific system without providing a general guideline for how to address the design problem. This thesis focuses on developing such a general approach which is applied to the design of a wind tunnel meant …
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An Invertible Open-Loop Nonlinear Dynamic Temperature Dependent MR Damper Model
A Magnetorheological damper is a commonly used component in semi-active suspensions that achieves a high force capacity and better performance than a passive system, without the added expense and power draw of a fully active system, all while maintaining failsafe performance. To fully exploit the …
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Open loop performance of a biomimetic flapping foil autonomous underwater vehicle
… foil system. This thesis presents and analyzes open-loop performance test data for the Biomimetic Flapping Foil Autonomous Underwater Vehicle. The vehicle is capable of actuating in four different modes of motion, surge, heave, sway, and yaw. These four modes are explored through a range of …
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Open loop and closed loop cup forming of aluminum sheet metals
Thesis (Mech. E.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1994.
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Evaluation of Pilot and Quadcopter Performance from Open Loop Mission Oriented Flight Testing
… modeling is done including human operator in the open loop so that full scenario of the flight, from pilot to UAV can be analyzed. Frequency domain analysis helps to identify system complexity, stability and fastness based on level of autonomy as well as pilot performance based on experience level. …
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Open Loop System Identificaiton of a Micro Quadrotor Helicopter from Closed Loop Data
… determine the bare airframe dynamics of a closed loop system, the feedback gains must be turned down as low as possible so as to not distort the natural response. Then the bare airframe dynamics can be calculated from the identified closed loop dynamics if the feedback gains and control law are …
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New numerical methods for open-loop and feedback solutions to dynamic optimization problems
The topic of the first part of this research is trajectory optimization of dynamical systems via computational swarm intelligence. Particle swarm optimization is a nature-inspired heuristic search method that relies on a group of potential solutions to explore the fitness landscape. Conceptually, …
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An empirical study of open-loop load generators for microservices and web workloads
… original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms
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An Open Loop Feed-Forward Control Scheme for Bioinspired Artificial Hair Cell Sensors
… research documents the creation and use of an open-loop feed forward control scheme designed to manipulate the DC potential across lipid bilayer membranes in artificial hair cell sensors. Inspired by the human cochlea's non-linear gain phenomenon, whereby the cochlea can increase or decrease …
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Building and controlling fluidically actuated soft robots : from open loop to model-based control
… these models for motion planning and closed-loop feedback control in order to realize quasi-static manipulation, dynamic arm motions, and dynamic interactions with an environment. The design and fabrication techniques for our soft robots include the development of soft actuator morphologies, …
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Nonlinear Mr Model Inversion for Semi-Active Control Enhancement With Open-Loop Force Compensation
… into the modification by application of simple open loop force compensation. Laboratory testing of the hysteretic inversion process was performed with the goal of emulating an ideal linear damper without hysteresis. These results are compared with the implicit assumption thus providing a basis …
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Open-loop and closed-loop trailing-edge separation control on a natural laminar flow airfoil
… at the different flow control settings. A closed loop controller was developed to vary the actuation parameters in-situ using sensory feedback from the unsteady surface pressure measurements. Adaptive modal decomposition methods were used to identify the frequencies of natural instabilities in the …
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An open-loop method for reduction of torque ripple and an associated thermal-management technique
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.
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