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 8 of 8 for “"closed-loop test"”.
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Design and Construction of a High Pressure System for Evaluating Multiphase Twin-Screw Pumps
… significantly under these conditions, a new closed-loop test facility has been designed and constructed to allow for testing of twin-screw pumps at high gas volume fractions. With minimal modification, the test facility can accommodate high pressure flows and oil-based liquids for testing. …
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Design and validation of active trailer steering systems for articulated heavy vehicles using driver-hardware-in-the-loop real-time simulation
… applications, a Driver-Hardware-In-the-Loop (DHIL) real-time simulation platform is developed for the design and validation of ATS system for DTAHVs. The real-time simulation results derived under the emulated low-speed path-following test maneuvers demonstrate the effectiveness of the …
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Advances in iterative learning control with application to structural dynamic response reconstruction
… to improve the tracking accuracy of a desired test system output over repeated test trials. ILC is sometimes used in response reconstruction on complex engineering structures, such as ground vehicles, for purposes of fatigue testing. The compensator that is employed in ILC in such cases is …
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Development of current control for three phase multilevel inverter
… Simulink. Results obtained are from the open loop test and closed loop test. Two stages cascaded H bridge are created in which it uses 12 PWM signals for the switching scheme. PWM signals are generated by comparing a sine wave and triangular wave. Switching frequency for this project is chosen …
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Closed Loop Analysis of Space Systems (CLASS) a modular test system for small satellite verification and validation
Closed Loop Analysis of Space Systems (CLASS) is a modular, closed-loop satellite test system developed at the Laboratory for Advanced Space Systems at Illinois (LASSI). This thesis presents the technical details of the initial engineering development stages of CLASS. The CubeSat concept is now …
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Micro and nanostructured surfaces for enhanced phase change heat transfer
… performance of the microchannels with a custom closed loop test setup. This thesis provides improved fundamental understanding of the role of micro/nanostructures on liquid spreading and bubble dynamics as well as the practical implementation of such structures in microchannels for enhanced heat …
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Development of a Mechanistic-Based Approach to Evaluate Critical Conditions of Hot Mix Asphalt Mixtures
… mixtures using the repeated load triaxial (RLT) test at field representative testing conditions to determine the critical temperature of the HMA beyond which the mixture becomes unstable. An HMA was considered appropriate for a specific project location if the determined critical temperature was …
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Improved closure relations for the two fluid-model in flashing flows
… of experiments are performed in this work with a closed-loop test facility. Two-phase parameters are measured with four-sensor conductivity probes at five axial locations along the test section, consisted of 3 m of heated length, followed by 2 m of unheated length. Two-phase measurements such as …