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Now showing items 21-30 of 43
Contstraint effects of shallow cracks in structures containing fillet weld toe cracks
(Texas A&M University, 1995)
Current methods for determining fracture toughness values for structures containing weldments rely on homogeneous models. This research invalidates this assumption by using finite element analysis results to calculate ...
Numerical model of mixed convection heat transfer between a series of vertical parallel plates with planar heat sources
(Texas A&M University, 1995)
Heat transfer between a series of vertical parallel plates with planar heat sources has been studied numerically. The series of plates formed a series of channels, or cooling passages, in which fluid could flow. Heat ...
Thermo-Hydrodynamic analysis of turbulent cryogenic eccentric annular seals and effects of seal flexibility
(Texas A&M University, 1995)
High performance turbomachines such as the Space Shuttle Main Engine Turbopumps (SSME-HPOTP and HPFTP) are prone to experience severe vibration problems due to high operating pressures and speeds. The stability and response ...
Measurements of static loading characteristics of a Flexurepivot Tilt Pad Hydrodynamic Bearing
(Texas A&M University, 1995)
An experimental investigation examining the static loading characteristics of a four-pad, KMC FLEXUREPIVOT Tilt Pad Hydrodynamic Bearing is presented. Tests are conducted on the TRACE Fluid Film Bearing Element Test Rig ...
Mode localization by state feedback control quasi-perturbation of a multi-degree-of-freedom system
(Texas A&M University, 1995)
This thesis describes attempts to produce mode localization in a multi-degree-of-freedom experimental test system through state feedback control of the system. Mode localization is a phenomenon that appears as the suppression ...
Grain refinement using equal channel angular extrusion in bulk sections of copper 101 and aluminum alloys 3003 and 6061
(Texas A&M University, 1995)
A new technique called Equal Channel Angular Extrusion (ECAE) which produces intense and uniform deformation by simple shear is applied to 1x1x6" billets of copper 101 and aluminum alloys 3003 and 6061. Two types of refined ...
Turbulent heat transfer and friction in a segmental channel that simulates leading-edge cooling channels of modern turbine blades
(Texas A&M University, 1995)
Experiments are conducted to study the effects of channel geometry and asymmetric heating on the heat transfer and friction characteristics of turbulent flows in leading edge cooling channels in stator blades of gas turbines. ...
The Effect of Hardware Configuration on the Performance of Residential Air Conditioning Systems at High Outdoor Ambient Temperatures
(Texas A&M University, 1995)
A study was performed which investigated the effect of hardware configuration on air conditioning cooling system performance at high outdoor temperatures. The initial phase of the investigation involved the testing of ten ...
Three dimensional modeling and analysis of Haversian systems in compact bone tissue
(Texas A&M University, 1995)
This study provides a qualitative as well as quantitative characterization of the geometry and architecture of the Haversian systems at a microscopic level. A procedure was developed and employed to generate a three ...
Electrical and mechanical studies of high purity aluminum single crystals at 4.2 K under cyclic strain
(Texas A&M University, 1995)
The objective of this research is to investigate the effects of orientation on strain hardening and resistivity degradation in high purity aluminum single crystals resulting from uniaxial cyclic strain at 4.2 K. Aluminum ...