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Title: Gasoline characteristics
Creator: Mouat, Harry G, Wilcox, Maurice L
Date: 2009, 1916
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/gasolinecharacte00moua
Thesis (B.S.)--Armour Institute of Technology, 1916 Bibliography: leaf 47 B.S. in...
Show morehttp://www.archive.org/details/gasolinecharacte00moua
Thesis (B.S.)--Armour Institute of Technology, 1916 Bibliography: leaf 47 B.S. in Mechanical Engineering, 1916
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Title: Gas distribution in Syracuse, N. Y.
Creator: Singer, S. C.
Date: 2009, 1910
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/gasdistributioni00sing
Thesis (B.S.)--Armour Institute of Technology

Title: CHARACTERIZATION OF THE FRICTION VELOCITY BASED ON THE BEHAVIOR OF AN OIL DROPLET IN A CHANNEL FLOW
Creator: Bonnavion, Guillaume
Date: 2015, 2015-05
Description: The study of oil films can be an approach to determine the friction velocity of turbulent channel flows. In experimentation, the oil film...
Show moreThe study of oil films can be an approach to determine the friction velocity of turbulent channel flows. In experimentation, the oil film motion and the shear stresses can be measured using oil film interferometry. Similarly, these techniques can be set up to obtain the equivalent numerical simulation of these kinds of flows, also displaying the evolution of an oil droplet in such configurations. A two-dimensional simulation had been obtained using the Nek5000 code provided by Argonne National Laboratory. In this work, it was aimed to check the accuracy of such a simulation and to extend it to a uniform three-dimensional case to see whether the solver could be used to solve such problems. A new two-dimensional simulation was set up and gave preliminary results. A better achievement was made using tuned inputs that allowed comparing it with an available theory. The simulation and its accuracy were justified in specific cases. It was then extended to two uniform three-dimensional cases and compared with the previously obtained two-dimensional results. This allowed an extension of the use of the solver in specific cases and therefore provides an easy-to-implement method to determine the friction velocity in a flow and also to access some flow information such as velocity profiles or by extension pressure gradients.
M.S. in Mechanical and Aerospace Engineering, May 2015
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Title: THERMAL AND MECHANICAL ANALYSIS OF ELECTRON BEAM ADDITIVE MANUFACTURED TI-6AL-4V BUILD PLATE
Creator: Cao, Jun
Date: 2017, 2017-07
Description: Electron Beam Additive Manufacturing (EBAM), used to fabricate net or nearnet- shaped components based on a sliced CAD model, offers a...
Show moreElectron Beam Additive Manufacturing (EBAM), used to fabricate net or nearnet- shaped components based on a sliced CAD model, offers a potential alternative solution for the processing of titanium components, especially for large parts. However, the components fabricated using EBAM exhibit significant difficulties in quality control and quality assurance due to lack of knowledge of thermo-mechanical-metallurgical relationship. In this work, the thermo-mechanical behavior of wire-feed EBAM for largescale Ti-6Al-4V build plates has been investigated computationally and experimentally, with special attention to the distortion and residual stress, as well as the microstructural evolution. A 3D transient fully coupled thermo-mechanical finite element (FE) model was built, calibrated, and rigorously validated. To ensure the accuracy of the model, the bulk residual strain distribution was measured using neutron diffraction (ND), and the numerically simulated thermal profiles were physically simulated using a Gleeble® 3500, in addition to the conventional model validation methods. Good agreement was found between the simulation results and experimental measurements. A series of simulations were performed to determine the optimum process conditions. The simulation results indicated that preheating, increasing deposition power and scan rate, and decreasing interval cooling time effectively mitigates the distortion and residual stress. For EBAM Ti-6Al-4V build plates, increasing the energy input and reducing the heat loss renders smaller temperature difference and thermal expansion mismatch, consequently, leading to a lower level of distortion and residual stress. The deposited cladding was characterized by large columnar grains growing across layers, a bottom region with repeated macroscopic bands and a top region without these bands. The band structure exhibits mostly colony α. A fine basket-weave structure is observed above the band structure, and a coarse basket-weave structure is observed below the band structure. The simulated thermal profiles were used to understand the observed microstructure. It was found that the microstructure variation in the cladding of EBAM Ti-6Al-4V build plates is strongly dependent on the peak temperature within the (α+β) phase region, and heating rate and cooling rate have insignificant effects on it. The non-equilibrium solid-solid phase transformation of Ti-6Al-4V under continuous heating/cooling were experimentally investigated. The kinetics of phase transformation was quantitively studied and modeled using a non-isothermal JMAK (Johnson-Mehl-Avrami-Kolmorgorov) model, with the activation energy QA=123.9 kJ/mole, JMAK exponent n=1.8, and the calculated ln (k0) varied between 9.15 to 10.6 for different heating rate.
Ph.D. in Materials Science and Engineering, July 2017
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Title: REAL-TIME ARAIM USING GPS, GLONASS, AND GALILEO
Creator: Cassel, Ryan
Date: 2017, 2017-05
Description: Since the inception of GPS, satellite navigation has been a widely used means of navigation for both military and civilian users on the ground...
Show moreSince the inception of GPS, satellite navigation has been a widely used means of navigation for both military and civilian users on the ground and in the air. GPS is capable of providing highly accurate positioning and timing information to users around the globe. However, for certain applications, providing high-accuracy position estimates is not sufficient. Because satellites are susceptible to faults, the safety, or integrity, of the position estimates is also of concern, especially in civilian aviation where safety is critical. As such, receiver autonomous integrity monitoring (RAIM) can be used in order to detect and potentially exclude these faults and guarantee the safety of the position estimate. RAIM has been capable of supporting horizontal aircraft navigation using GPS for decades and has proven to be a useful tool. Now, as more global navigation satellite systems (GNSS) become available, the potential for advanced RAIM (ARAIM) to support vertical guidance for aircraft using multiple constellations has become an area of great interest. In this work, the ARAIM methodology is discussed, and the procedure is outlined, including protection level calculation, fault detection, and exclusion. The procedure is then implemented in a real-time ARAIM prototype. While GPS and Galileo aim to provide worldwide coverage for vertical guidance by 2020 when Galileo is fully operational, ARAIM performance can be examined at present using the current full-strength GPS and GLONASS constellations. This prototype performs position estimation and ARAIM using measurements from the current GPS, GLONASS, and partial Galileo constellations. ARAIM results in a variety of different GNSS scenarios are examined. Furthermore, this work investigates two methods of improving the computational efficiency of the ARAIM algorithm: satellite selection and fault mode grouping.
M.S. in Mechanical and Aerospace Engineering, May 2017
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Title: Capacity and efficiency test of an autovacuum refrigerating machine
Creator: Strauch, Frederic P., Armacost, Wilbur H.
Date: 2009, 1916
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/capacityefficien00stra
Thesis (B.S.)--Armour Institute of Technology, 1916 B.S. in Mechanical Engineering, 1916

Title: GRAIN BOUNDARY ENGINEERING OF POWDER-PROCESSED NI-BASE SUPERALLOY RR1000
Creator: Detrois, Martin
Date: 2016, 2016-05
Description: Grain boundary engineering (GBE) has been used to improve the properties of various polycrystalline materials by optimization of their grain...
Show moreGrain boundary engineering (GBE) has been used to improve the properties of various polycrystalline materials by optimization of their grain boundary network. Traditional processing routes for GBE often require multiple iterations of cold work followed by short annealing cycles where each iteration imparts a modest increase in the fraction of special grain boundaries. Multiple iterations are then required to achieve sufficiently high fractions (>50%) that result in the improved properties. Thus, this GBE approach is not suitable for the fabrication of large, complex-shaped structures and leads to added manufacturing lead time and cost. In this investigation, the Ni-base superalloy RR1000 used as turbine discs in gas turbine engines manufactured by Rolls-Royce, was considered for GBE using alternative processing routes more suitable to the forging of Ni-base superalloy components. A preliminary study of the e↵ects of hot deformation parameters closer to typical industrial processing revealed that the length fraction of ⌃3 boundaries increased from 35% to 52% following a single deformation/anneal cycle. Deformation parameters that resulted in strain accommodation via superplastic flow did not enhance the formation of ⌃3 boundaries upon annealing. Whereas deformation parameters that resulted in a dominant dislocation-based plasticity flow mechanism promoted the formation of annealing twins. Using misorientation maps and by estimating the stored strain energy from deformation, equations for the length fraction and density of ⌃3 boundaries were generated for high-temperature GBE of RR1000. The grain boundary characters obtained via high-temperature deformation, however, are less ideal than those resulting from traditional cold rolling. The underlying mechanisms responsible for the formation of ⌃3n boundaries during high-temperature GBE were further investigated. A larger starting grain size prior to deformation was found to be unfavorable to the formation of twin boundaries from twin-reorientation and annihilation of preexisting twins. While recrystallization was found to populate the microstructure with grains that contained very few twin boundaries, post-deformation texture was found to promote the formation of ⌃3 boundaries and triple junctions when Goss texture was present. A final consideration of larger scale forgings was used to raise an outlook on the current issues and the potential of high-temperature GBE for turbine engines.
Ph.D. in Materials Science and Engineering, May 2016
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Title: Determination of the water rates of small engines by Clayton's method
Creator: Byanskas, John M., Luckow, Lincoln W
Date: 2009, 1916
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/determinationofw00byan
Thesis (B.S.)--Armour Institute of Technology, 1916 B.S. in Mechanical Engineering, 1916

Title: TWO-DIMENSIONAL AND AXISYMMETRIC BUBBLE RISE USING THE LEVEL SET METHOD
Creator: Dominik S, Michael
Date: 2013, 2013-07
Description: Gas bubbles in liquids are important in many industries, including power gen- eration, steel making, as well as chemical and waste water...
Show moreGas bubbles in liquids are important in many industries, including power gen- eration, steel making, as well as chemical and waste water treatment. A fundamen- tal understanding of the bubble rising physics is helpful in many practical applica- tions. A new level set code for incompressible, multiphase ows using the vorticity- streamfunction formulation in both two-dimensional and axisymmetric cases has been developed. The level set method is well suited to treating multiphase ows having complex interface shapes that may undergo topological changes such as merging and splitting of bubbles. Previous numerical and experimental results for single and mul- tiple bubbles are used to determine the numerical parameters that should be used for the new code and to demonstrate the accuracy of the model. The shape and ter- minal velocities of air bubbles in mineral oil and water are found to duplicate other experimental and calculated results very closely. Results have been compared from two-dimensional and axisymmetric versions of the code for bubbles merging with var- ious surface tension. It is found that prior to merging of the bubbles, the results for velocities and bubble shapes are very similar. However, surface tension is found to have a greater in uence on the axisymmetric results. Once the bubbles merge, the combined bubble evolves toward the same shape and terminal velocity of a single bub- ble having the same volume. The initial acceleration of a single air bubble in water is analyzed and found to be approximately 3:3g, not 2g, which is the predicted value from added mass analysis based on potential ow theory. When the liquid density is increased, the acceleration is also found to increase.
PH.D in Mechanical and Aerospace Engineering, July 2013
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Title: The development of a hydraulic dynamometer
Creator: Thal, Samuel W.
Date: 2009, 1917
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/developmentofhyd00thal
Thesis (B.S.)--Armour Institute of Technology

Title: Cost of power in Japan (10,000 K. W. steam, gas and hydro-electric plants)
Creator: Sasaki, T.
Date: 2009, 1918
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/costofpowerinjap00sasa
Thesis (B.S.)--Armour Institute of Technology

Title: Design, construction and tests of multi-vane blower impellers
Creator: Brewer, Fred L., Anderson, Oscar A
Date: 2009, 1915
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/designconstructi00brew
Thesis (B.S.)--Armour Institute of Technology, 1915 B.S. in Mechanical Engineering, 1915

Title: The design and application of apparatus for determining the distribution of water from automatic sprinkler heads
Creator: Rietz, Walter H., Pfafflin, Theo K.
Date: 2009, 1915
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/designapplicatio00riet
Thesis (B.S.)--Armour Institute of Technology

Title: ACOUSTICALLY FORCED EXTERNAL PULSED COMBUSTION
Creator: Karuppiah, Manikandan
Date: 2011-04-25, 2011-05
Description: Pulsed combustion is one of the most energy-efficient and less polluting ways to produce a hot gas stream for heating purposes. It is usually...
Show morePulsed combustion is one of the most energy-efficient and less polluting ways to produce a hot gas stream for heating purposes. It is usually limited, however, by the need to confine the combustion within a resonant tube. In the experiments presented here, pulsed combustion was achieved in the open air by means of upstream acoustic forcing of a porous matrix burner. Using metal matrices at least 20 mm thick, with pore densities of 60 pores per inch, a stoichiometric mixture of air and natural gas at a constant rate of 217.5 standard cubic feet per hour was forced by a speaker mounted on the plenum upstream of the matrix by means of sinusoidal waves of variable amplitude, at 10 to 150 Hz. Instantaneous surface temperature, as well as pressures upstream and downstream of the matrix were acquired. Phase-locked photographs of the combustion zone were acquired by means of a mechanical stroboscope synchronized to the forcing signal. It was found that, as the forcing amplitude increases, the mode of combustion switches from continuous to oscillating flame, to pulsed combustion consisting of a series of ignitions and extinctions. The change of combustion mode was accompanied by substantial changes in matrix surface temperature, with the pulsed mode reaching temperatures 170°C higher than steady-state combustion and 70% increase in radiant heat flux emitted. This was usually accompanied by a contraction in the size of the hot part of the matrix, resulting in an overall increase in radiant heat output of 5%, for our experiments. Maximum surface temperature was reached for a 35 mm thick matrix, which is hereby recommended for practical radiant heaters using this process. The mechanism hypothesized earlier was nearly proved with pending confirmation from reverse velocity measurements.
M.S. in Mechanical and Aerospace Engineering, May 2011
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Title: AUTOMATED MANIPULATION OF NANOSCALE STRUCTURES VIA AN ATOMIC FORCE MICROSCOPE
Creator: Xu, Kangmin
Date: 2013, 2013-05
Description: As a useful tool for both imaging and modifying nanoscale structures, atomic force microscopes (AFM) have drawn many researchers’ attention,...
Show moreAs a useful tool for both imaging and modifying nanoscale structures, atomic force microscopes (AFM) have drawn many researchers’ attention, but there are still many challenges such as lack of visual feedback during manipulation. In this dissertation, an AFM based nano manipulation system has been developed to modify the nanoscale structures including manipulation of nano particles, carbon nanotubes (CNTs) and indentation of the polymer substrate. These operations have been further assisted by real-time feedback such that AFM can be used to image, sense and manipulate nanoscale objects simultaneously. To address critical issues in AFM based nano manipulation, several methods have been developed to enhance the process of manipulation. In nano particle manipulation, a method called sequential parallel pushing (SPP) is presented for efficient and automated nano particle manipulation. Instead of using tip scanning to fully locate the particle center, this method uses contact loss detection to get the longitudinal position of particle and one scan line perpendicular to the pushing direction to determine the lateral position of the particle center. In nano indentation, computer-aided design (CAD) geometry processing has been integrated with an AFM based nano indentation process which enables the fabrication of complex geometric features. Machining parameters have been investigated and procedure to determine them have been demonstrated. In the localization of deformable nanoscale objects, two localization methods for localizing CNTs and nanowires have been introduced. They can perform accurate positioning and reconstruction of sample shapes while being manipulated. Successive manipulation strategies thus can be developed based on the developed fast localization schemes.
PH.D in Mechanical Engineering, May 2013
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Title: Automatic temperature control in buildings
Creator: Cooper, Earl C.
Date: 2009, 1917
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/automatictempera00coop
Thesis (B.S.)--Armour Institute of Technology, 1917 Bibliography: leaves 96-97 B.S. in...
Show morehttp://www.archive.org/details/automatictempera00coop
Thesis (B.S.)--Armour Institute of Technology, 1917 Bibliography: leaves 96-97 B.S. in Mechanical Engineering, 1917
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Title: Characteristics of and influence of environment on a fan dynamometer
Creator: Echlin, E. S, Willett, J. V
Date: 2009, 1916
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/characteristicso00echl
Thesis (B.S.)--Armour Institute of Technology, 1916 B.S. in Mechanical Engineering, 1916

Title: Design and construction of an auto-traction dynamometer for automobile chassis
Creator: Goetz, William Henry, Koch, Albert Nicholas, Meyer, Leslie Carl
Date: 2009, 1914
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/designconstructi00goet
Thesis (B.S.)--Armour Institute of Technology; Bibliography: leaf 56

Title: The design and construction of a complete testing apparatus for a 40 horse power Halladay Chassis
Creator: Goldberg, David, Parsons, Harry N.
Date: 2009, 1911
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/designconstructi00gold
Thesis (B.S.)--Armour Institute of Technology

Title: Design and construction of a horse power meter and rear wheel dynamometer as applied to a 40 H.P. Halladay chassis
Creator: Bready, William M, Bartlett, Harold J
Date: 2009, 1915
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/designconstructi00brea
Thesis (B.S.)--Armour Institute of Technology, 1915 Bibliography: leaf 29 B.S. in...
Show morehttp://www.archive.org/details/designconstructi00brea
Thesis (B.S.)--Armour Institute of Technology, 1915 Bibliography: leaf 29 B.S. in Mechanical Engineering, 1915
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