Browsing by Author "Palazzolo, Alan"
Now showing items 41-60 of 136
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Parish, Julie Marie Jones (2012-10-19)The estimation approaches examined in this dissertation focus on manipulating system dynamical models to allow the well-known form of the continuous-discrete extended Kalman filter (CDEKF) to accommodate constrained and ...
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Maeland, Lasse (2012-07-16)Observing the relative state of two space vehicles has been an active field of research since the earliest attempts at space rendezvous and docking during the 1960's. Several techniques have successfully been employed by ...
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Malik, Darren R. (2010-07-14)The focus of this research was to create and characterize high temperature alumina and nitrate salt eutectic nanofluids for use in thermal energy storage (TES) systems. The nitrate eutectic was originally used in the TES ...
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Zhang, Mingjie (2018-11-02)Modern gas turbines engines are designed with higher turbine inlet temperatures to increase the overall thermal efficiency and power output. Advanced cooling technologies are needed to protect turbine blades from hot gas ...
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Choudhry, Vivek Vaibhav (Texas A&M University, 2004-11-15)Wire mesh vibration dampers have been the subject of some very encouraging experiments at the Texas A&M Turbomachinery laboratories for the past several years and have emerged as an excellent replacement for squeeze film ...
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Li, Ming-Hsiu (Texas A&M University, 2006-04-12)Fault tolerant control can accommodate the component faults in a control system such as sensors, actuators, plants, etc. This dissertation presents two fault tolerant control schemes to accommodate the failures of power ...
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Provenza, Andrew; Beach, Raymond; Kascak, Albert; Palazzolo, Alan; Li, Ming-hsiu; Kenny, Andrew; Pruess, Jason; Tucker, Randall P.; Provenza, Andrew; Beach, Raymond; Kascak, Albert (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2008-09-30)A magnetic bearing for supporting a spinning shaft in the radial direction and/or the axial direction includes a rotor formed on the shaft and a stator positioned around the rotor. Poles in the stator creates a magnetic ...
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Zutavern, Zachary Scott (Texas A&M University, 2004-09-30)Historical attempts to measure forces in magnetic bearings have been unsuccessful as a result of relatively high uncertainties. Recent advances in the strain-gauge technology have provided a new method for measuring ...
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Lyons, Kimberly (2015-04-30)In Port Aransas, TX, movable bridges, ferry ramps, are used to dock ferry boats and load vehicles on and off of the boats to cross the Corpus Christie, TX ship channel as part of State Highway 361. Fatigue cracks are present ...
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Li, Yashu (2019-03-26)Machinery trains with motor drives are widely used in industry. Motor related forces may become one of the sources of machinery vibrations. Motor eccentricity is one of the common phenomena that cause forces exerted on ...
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Lucas, Amy Marie (2010-10-12)The author develops a nonlinear longitudinal model of an aircraft modeled by rigid fuselage, tail, and wing, where the wing is attached to the fuselage with a torsional spring. The main focus of this research is to retain ...
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Ashton, Zachary (2010-01-14)Adequate sealing in turbomachinery reduces secondary leakage and results in more efficient and stable systems. Labyrinth seals are most common, although brush seals are popular in specialized applications. The Hybrid Brush ...
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Park, Soongook (2009-05-15)Foil bearings are widely used for oil-free micro turbomachinery. One of the critical technical issues related to reliability of the foil bearings is a coating wear on the top foil and rotor during start/stops. Bearing ...
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Jaradat, Mohammad Abdel Kareem Rasheed (Texas A&M University, 2007-04-25)In this study, an efficient new hybrid approach for multiple sensors data fusion and fault detection is presented, addressing the problem with possible multiple faults, which is based on conventional fuzzy soft clustering ...
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Seshagiri, Sanjeev (2012-07-16)Squeeze Film Dampers (SFD) provide viscous damping in rotor bearing systems to reduce lateral vibration amplitudes and to isolate mechanical components. Aircraft engine shafts, often supported on roller bearings, operate ...
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Zutavern, Zachary Scott (2009-06-02)Methods are presented for parameter identification of an annular gas seal on a flexiblerotor test rig. Dynamic loads are applied by magnetic bearings (MBs) that support the rotor. MB forces are measured using fiber-optic ...
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Hu, Lingnan (2018-11-26)Accurate modeling and analysis approaches have long been important concerns for designers of rotating machinery. This work is focused on the improvement of high-fidelity finite element (FE) modeling approaches and software ...
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Moreland, James Alexander (2016-05-18)Circumferential grooves are machined into the rotor surface of liquid annular seals to reduce leakage. Analyses in the literature regarding rotordynamic coefficients for smooth stator/grooved rotor (SS/GR) seals are scarce, ...
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Xu, Feng (2017-12-12)The objective of this research is to investigate the interfacial instability of suspensions in a Hele-Shaw cell, which involves a dynamical coupling between particle transport and fluid-fluid interfacial deformations. ...
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Geresti, Cameron Lee (2019-11-21)The effect of auto-driller behavior has started to more attention in literature (Pastusek et al. 2016). Dysfunction can occur when the bit transitions to a harder formation and if the control gain of the auto-driller’s ...