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Dispersion of water sprays in a transverse air jet and the aging of spray nozzles
(Massachusetts Institute of Technology, 1999)
This thesis explores spray cooling methods used in the manufacturing process of glass fibers. At the onset of the manufacturing process glass fibers are extruded from a pool of molten glass through an array of holes in a ...
Variation reduction of a closed-loop precision ceramic micromachining process
(Massachusetts Institute of Technology, 1996)
This report details the investigation of the micromachining of a TiC.A1203 ceramic using a closed-loop lapping process. Currently the micromachining process laps a ceramic bar with only a priori flatness adjustment. Bar ...
DC magnetron reactive sputtering of low stress AlN piezoelectric thin films for MEMS application
(Massachusetts Institute of Technology, 1999)
Microelectromechanical systems (MEMS) often incorporate piezoelectric thin films to actuate and detect motion of mechanical structures. Aluminum nitride is advantageous for MEMS use because it can be deposited at low ...
A study of fretting fatigue in aircraft components
(Massachusetts Institute of Technology, 1998)
This thesis presents theoretical, computational, and experimental approaches to the problem of fretting fatigue in materials systems relevant to aircraft components. The basic contact mechanics for fretting fatigue in a ...
Microelectromechanical (MEMS) structures for thin film property measurement
(Massachusetts Institute of Technology, 1998)
Microelectromechanical systems (MEMS) are becoming the bases for an important industry with potential applications in numerous fields. The current study explores the use of MEMS-based, electrically-actuated structures to ...
Evaluation of aircraft performance algorithms in Federal Aviation Administration's Integrated Noise Model
(Massachusetts Institute of Technology, 1999)
The Integrated Noise Model (INM) has been the Federal Aviation Administration's (FAA) standard tool since 1978 for determining the predicted noise impact in the vicinity of airports. A review of the aircraft performance ...
Analysis of mixing and thrust diagnostics for shock tunnel hot nozzle testing
(Massachusetts Institute of Technology, 1999)
Transient testing of hot engine exhaust nozzle flows is being pursued to enable cost and time savings of one to two orders of magnitude over steady-state hot-flow testing. This thesis presents the design and assessment of ...
Performance study of flight deck interface systems for air traffic control-pilot data link communications (CPDLC)
(Massachusetts Institute of Technology, 1999)
In an effort to reduce saturation in voice radio channels and to take advantage of space-based communication technologies in a cost-effective basis, data link communication between the flight deck and air traffic control ...
Analysis of nonlinear electroelastic continua with electric conduction
(Massachusetts Institute of Technology, 1999)
This thesis presents the nonlinear theory for large deformation electroelastic continua with electric conduction. This theory is suitable for modeling actuator and sensor devices composed of deformable, electromechanically ...
Micrometeroid, orbital debris, and shielding analysis for the Soft X-ray Camera (SXC) of the High Energy Transient Explorer (HETE-2) spacecraft
(Massachusetts Institute of Technology, 1999)
The High Energy Transient Explorer (HETE-2) is a scientific spacecraft that will carry out a multi-wavelength study to determine the origin and nature of cosmic gamma-ray bursts (GRBs). The Soft X-ray Camera (SXC) is the ...