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Now showing items 141-150 of 433
A slotted orifice plate used as a flow measurement device
(Texas A&M University, 1993)
The standard orifice plate is used extensively by the natural gas industry for the metering of fuel. Because of the costs associated with errors in flow measurement inherent with the use of a standard orifice plate, any ...
Design and analysis of an actuator/position sensor for microgravity vibration isolation
(Texas A&M University, 1998)
An actuator/position sensor was desired for Micrographics. microgravity vibration isolating. The actuator is to be used as a successor to the actuator used in the current microgravity vibration isolation system develop by ...
Rotordynamic evaluation of a tangential-injection hybrid bearing
(Texas A&M University, 1998)
: : Issued also on microfiche from Lange Micrographics. For future high-speed cryogenic turbomachinery, ball bearings will be replaced by hybrid bearings that combine hydrostatic and hydrodynamic effects. Hybrid bearings ...
Flow visualization and leakage measurements of worn labyrinth seals
(Texas A&M University, 1997)
A large-scale flow visualization test facility is used to conduct an experimental investigation into the leakage resistance and flow characteristics of worn labyrinth seals. Wear in labyrinth seals is a consequence of ...
Modeling the transient operation of an endothermic fuel cooling system for high Mach number vehicle missions
(Texas A&M University, 1993)
A computer model was developed to simulate the transient operation of a hypothetical endothermic fuel cooling system. The model simulated the performance of a cross-flow, shell and tube heat exchanger. This model was ...
Parameter identification using experimental nonlinear dynamics and chaos
(Texas A&M University, 1993)
Parameter identification using experimental nonlinear dynamics and chaos was applied to a piecewise-linear oscillator; application to cracked beams was attempted. Electronic integration circuitry was constructed to provide ...
A manual procedure for assembly sequence planning based on the exploded view method
(Texas A&M University, 1995)
This thesis covers the development of a manual planning procedure based on the computerized method of exploded views to generate an optimal or near-optimal assembly sequence. Care has been taken to minimize iterative and ...
A 3D laser doppler velocimetry study of the upstream velocity profile effects upon the flow field inside an orifice flowmeter
(Texas A&M University, 1995)
Orifice meters are used for the measurement of flow rate, particularly in the natural gas industry. They are relatively simple and inexpensive devices; the flow rate is calculated by observing the pressure drop across an ...
A test rig for the identification of rotordynamic coefficients of fluid film bearings
(Texas A&M University, 1995)
A test rig and measurement procedure to identify the rotordynamic coefficients of generic fluid film bearing elements are described. The test apparatus allows the exchange of test articles without modifications to the basic ...
Open loop control for six degree of freedom alignment using phase plane methods
(Texas A&M University, 1994)
This thesis will discuss how the Targeting and Reflective Alignment Concept (TRAC), developed by Lockheed for Johnson Space Center, is enhanced by converting it into an automated process. A brief discussion outlining the ...