Browsing by Subject "Rotordynamics"
Now showing items 21-32 of 32
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(Texas A&M University, 2007-04-25)Results are presented for measured and predicted rotordynamic coefficients and leakage for hole-pattern seals with a hole depth that varies axially along the seal. Testing was done to discover how pressure ratio, inlet ...
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(2012-12-10)Gas bearings in oil-free micro-turbomachinery for process gas applications and for power generation (< 400 kW) must offer adequate load capacity and thermal stability, reliable rotordynamic performance at high speeds and ...
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(2021-07-27)Automotive turbochargers (TCs) rely on engine oil lubricated floating ring bearing systems to produce acceptable performance as per the engine volumetric efficiency, and along with proven reliability. However, these TCs ...
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(2013-08-22)Squeeze Film Dampers (SFDs) aid to suppress rotor vibrations and enhance the stability of high-speed rotor-bearing systems. A SFD is a simple oil lubricated film between a stationary housing and a precessing (whirling) ...
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(2017-04-25)Electrical Submersible Pumps (ESPs) are widely used for oil production. Reliability studies of ESPs are important to increase their life span, thus improving profits. Experimental data of a 185-hour erosion on a WJE-1000 ...
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(Texas A&M University, 2005-11-01)The present work describes experiments conducted on several pocket damper seal (PDS) designs using a high pressure annular gas seal test rig. Both rotating and non-rotating tests were conducted for a 12, 8, and 6 bladed ...
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(2022-07-25)Gas turbines and other machinery rotating assemblies are frequently manufactured as multiple components rather than as a single device due to cost and precision requirements. Butt joints, Hirth couplings, and Curvic couplings ...
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(Texas A&M University, 2004-09-30)This thesis documents the results of high pressure testing of hole-pattern annular gas seals conducted at the Texas A&M University's Turbomachinery Laboratory. The testing conditions were aimed at determining the test seals ...
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(2020-04-16)This work expands on a reduced-order flow solver used to predict harmonically unsteady flows, which utilizes the time-linearization method. The time-linearization method requires a steady-state flow field from a full-order ...
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(2017-06-21)A time-linearized CFD solver for analyzing rotordynamics of gas seals is presented offering an improvement over existing linearized CFD solvers. Previous linearized solvers required structured grids and axisymmetric domains, ...
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(2020-07-09)Torsional vibrations in rotating machinery are crucial in determining the reliability of the machinery during operation. These vibrations can be induced by constant frequency and constant amplitude excitations in steady-state ...
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(2020-07-09)Torsional vibrations in rotating machinery are crucial in determining the reliability of the machinery during operation. These vibrations can be induced by constant frequency and constant amplitude excitations in steady-state ...