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 20 of 1281 for “"Torque"”.
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Dynamic torque measurement
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering, 1932.
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Influência da adaptação funcional nas relações torque-ângulo e torque-velocidade
… do presente estudo foi comparar as relações torque-ângulo (T-A) e torque-velocidade (T-V) de bailarinas clássicas (n=14) e atletas de voleibol (n=22). O torque máximo (Tmax) da musculatura flexora plantar (FP) do tornozelo foi avaliada durante contrações isométricas voluntárias máximas nos …
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Torque Accuracy Improvement Via Explicit Torque Feedback Control For Internal Combustion Spark Ignition Engines
… both control and estimation accuracies of engine torque are causes for under-achieving optimal drivability and performance in today’s production vehicles. The major focus in this area has been to enhance torque estimation and control accuracies using existing open-loop torque control and …
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Direct torque control induction motor drives
This paper presents an implementation of a direct torque control (DTC) strategies to control the operation induction motor (IM). The aim is to control effectively the torque and flux. Torque control of an induction motor base on DTC strategy has been developed and a comprehensively study in this …
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Nanophotonic Optomechanical Devices for Torque Magnetometry
Torque magnetometry is a powerful and sensitive method for studying intricate mesoscopic magnetic events inside magnetic materials using nanomechanical resonators. Over the years, the field of cavity optomechanics has demonstrated ever increasing sensitivity, with measurements limited by the …
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High-Torque Capacity Compliant Centrifugal Clutches
This thesis developed high-torque-capacity floating opposing arm clutches that are manufactured with standard economical manufacturing processes, while maintaining critical performance characteristics. Contact engagement speed and torque capacity models were created for the Hoffco-Comet, …
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The single-converter reverse-torque drive
[This is volume 2 and contains only drawings.]
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Harmonic analysis of radial engine torque
Thesis (B.S.)-- Massachusetts Institute of Technology, Dept. of General Engineering, 1936.
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Design of a frameless torque motor
… must obtain a design which will supply maximum torque for the available power input. The designer must determine the optimum rotor outside diameter, magnet size, rotor stack length, slot size, and all other internal dimensions of the motor. Economics dictate that the engineer may work on a …
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The Direct Torque Control of Induction Motors
… being given to vector control and direct torque control techniques. Modern control strategies such as vector control and direct torque control are investigated as well as the conventional methods such as open loop (constant V/f) operation. A number of different pulse width modulation …
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Torque estimation in permanent magnet synchronous machines
El uso de máquinas síncronas de imanes permanentes ha aumentado notablemente en aplicaciones industriales y de tracción eléctrica durante las últimas décadas, debido a su mejor comportamiento sobre otros tipos de motores eléctricos en aspectos clave como son la densidad de potencia, densidad de …
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Induction motor torque during fast bus transfers
… examines transient induction motor machine torque during fast bus transfers. In an effort to limit the damage to motors during a transfer, industry standards specify that the resultant vectorial volts per hertz between the motor and voltage source must not exceed 1.33 per unit. This project …
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Design of silent, miniature, high torque actuators
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1999.
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A study of permanent-magnet torque motors
Thesis (M.S.) Massachusetts Institute of Technology. Dept. of Mechanical Engineering, 1953.
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A torque magnetometer for crystalline anistropy measurements
Thesis: M.S., Massachusetts Institute of Technology, Department of Electrical Engineering, 1960
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Light-induced torque at multipolar plasmon resonance
… and report that scattering-induced transfer of torque can be unusually enhanced at non-dipolar resonance due to the effects of angular momentum conversion.
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Precision torque control for threaded part assembly
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1986.
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Torque control strategy for off-road vehicle mobility.
… regulated by the drivetrain layout and the torque distribution devices. At the output of the drivetrain system, the torque is constrained by the interaction between the wheels and the soft terrain. For off-road automotive applications, the construction of drivetrain system has usually been …
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Improvements in direct torque control of induction motors
… is devoted to the investigation of speed and torque control methods for electrical motors with particular emphasis been given to a specific control strategy known as Direct Torque Control (OTC). OTC is one of the preferred control techniques for Induction Motor (IM) drives due to the high …
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