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Title: The relative cost of operating steam and electric locomotives for switching purposes on the St. Paul railway industry tracks
Creator: Havlick, Spenser N, Sanger, John P, Malwitz, R. C, Albee, T. L
Date: 2009, 1921
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/relativecostofop00havl
Thesis (B.S.)--Armour Institute of Technology, 1921. B.S. in Mechanical Engineering, 1921

Title: Reconstruction of a thrust bearing for a 75 C.F.S. centrifugal sewage pumping unit
Creator: Bunge, L. W. A.
Date: 2009, 1918
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/reconstructionof00bung
Thesis (B.S.)--Armour Institute of Technology

Title: DYNAMIC LIFT FORCE MEASUREMENTS ON A 2-D WING AND COMPARISONS WITH UNSTEADY AERODYNAMIC MODELS
Creator: Buntain, Seth
Date: 2011-11-27, 2011-12
Description: Experiments were conducted to collect dynamic force measurements on a pitching wing using canonical motions. Aerodynamic forces were isolated...
Show moreExperiments were conducted to collect dynamic force measurements on a pitching wing using canonical motions. Aerodynamic forces were isolated from inertia based forces to facilitate Observer Kalman Identification model building. Comparisons with classical unsteady aerodynamic theories show good agreement when their assumptions are maintained, with smokewire visualization to qualitatively explain where experiments deviate from theory. A reduced order model built using OKID was compared to experimental data, and showed better agreement than classical theories. Oscillations in the lift measurements were observed in the OKID model and experimental data, and some potential sources for the oscillations were ruled out.
M.S. in Mechanical and Aerospace Engineering, December 2011
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Title: HIGH ENERGY SODIUM BASED ROOM TEMPERATURE FLOW BATTERIES
Creator: Shamie, Jack
Date: 2015, 2015-12
Description: As novel energy sources such as solar, wind and tidal energies are explored it becomes necessary to build energy storage facilities to load...
Show moreAs novel energy sources such as solar, wind and tidal energies are explored it becomes necessary to build energy storage facilities to load level the intermittent nature of these energy sources. Energy storage is achieved by converting electrical energy into another form of energy. Batteries have many properties that are attractive for energy storage including high energy and power. Among many di erent types of batteries, redox ow batteries (RFBs) o er many advantages. Unlike conventional batteries, RFBs store energy in a liquid medium rather than solid active materials. This method of storage allows for the separation of energy and power unlike conventional batteries. Additionally ow batteries may have long lifetimes because there is no expansion or contraction of electrodes. A major disadvantage of RFBs is its lower energy density when compared to traditional batteries. In this Thesis, a novel hybrid Na-based redox ow battery (HNFB) is explored, which utilizes a room temperature molten sodium based anode, a sodium ion conducting solid electrolyte and liquid catholytes. The sodium electrode leads to high voltages and energy and allows for the possibility of multi-electron transfer per molecule. Vanadium acetylacetonate (acac) and TEMPO have been investigated for their use as catholytes. In the vanadium system, 2 electrons transfers per vanadium atom were found leading to a doubling of capacity. In addition, degradation of the charged state was found to be reversible within the voltage range of the cell. Contamination by water leads to the formation of vanadyl acetylacetonate. Although it is believed that vanadyl complex need to be taken to low voltages to be reduced back to vanadium acac, a new mechanism is shown that begins at higher voltages (2.1V). Vanadyl complexes react with excess ligand and protons to reform the vanadium complex. During this reaction, water is reformed leading to the continuous cycle in which vanadyl is formed and then reduced back to the original state. In the discharged state, it was found that precipitation occurs, but is due to solubility limits and not chemical reactions. The TEMPO system showed the potential of higher concentration catholytes although large capacity losses were found. Although no explanation is found, the behavior of the fade is related to time and concentration.
Ph.D. in Mechanical, Materials and Aerospace Engineering, December 2015
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Title: NOVEL MATERIAL SYNTHESIS THROUGH SOL-GEL AND HYDROTHERMAL METHODS FOR FUNCTIONAL APPLICATIONS
Creator: Wang, Chuanlong
Date: 2014, 2014-05
Description: Novel material synthesis was investigated in this thesis to show two major promising ceramic material Fe-Si-O composites and Na3MnCO3PO4...
Show moreNovel material synthesis was investigated in this thesis to show two major promising ceramic material Fe-Si-O composites and Na3MnCO3PO4 composite. Major processing factors in forming Fe2SiO4=SiO2 and Fe2O3=SiO2 powders via sol-gel synthesis followed by solid-state reactions are investigated. The results clearly indicate that the chemical compositions of the precursors, the ratio of the precursors, the nature of the catalyst used, and the gas atmosphere during solid-state reactions can all a ect the outcome of the reaction product(s). The formation of Fe2SiO4=SiO2 is enhanced by using the precursor iron(III) acetylacetonate as the Fe source with the precursor ratio of iron(III) acetylacetonate to tetraethylorthosilicatebeing 1:1 and the addition of formic acid. Otherwise, crystalline Fe and Fe3C are formed in place of Fe2SiO4. By altering the gas atmosphere during solid-state reactions from argon to oxygen, the reaction products change from Fe2SiO4=SiO2 to Fe2O3=SiO2. All of the observed phenomena can be rationalized via the degree of mixing of the Fe-O and Si-O domains at the molecular level in the gel network during sol-gel reactions and the presence of a reducing or oxidizing atmosphere during the solid-state reaction. Hydrothermal method was applied in synthesizing Na3MnCO3PO4 composite which was studied as a high energy density material for Na ion battery (NIBs). In order to improve electronic conductivity for NIBs battery, ball milling with graphite was introduced for the as-synthesized material. This thesis will investigate the roles played by the ionic conductivities and crystal structure changes introduced by high energy ball milling. Such a study has never been conducted before, and thus can o er guidelines to unlock a gateway to truly low cost Na3MnCO3PO4 cathode NIBs with superior performance.
M.S. in Materials Engineering, May 2014
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Title: Operation characteristics of forty gallon chemical fire engine
Creator: Cole, E. R., Puschel, H. W. F., Rusk, R. H.
Date: 2009, 1918
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/operationcharact00cole

Title: EXPERIMENTAL METHODS TO DETERMINE MECHANICAL PROPERTIES OF ALUMINUM FOAM LIGAMENTS
Creator: Mathur, Saurabh
Date: 2013, 2013-07
Description: Metal foams are widely used these days and their applications are far reaching from engineering to medical and beyond. This study is aimed at...
Show moreMetal foams are widely used these days and their applications are far reaching from engineering to medical and beyond. This study is aimed at characterizing the property of aluminum foam ligaments in terms of their strength and response to loads. The defining characteristic of metal foams is a very high porosity: typically 75– 95% of the volume consists of void spaces which give them high strength to weight ratio. The aluminum foam (Duocell by ERG Aerospace Corp.) that is used in this study is manufactured using the parent material aluminum alloy 6101-T6. Through this work an effort has been made to understand the mechanical properties of aluminum foam ligaments. The elastic modulus was estimated by conducting bending experiments on ligaments. The yield stress was estimated through both bending and tension experiments which are followed by estimation of ultimate tensile stress using tension experiments on ligaments. A comparative study was also done to understand the difference in mechanical properties of ligaments to that of bulk aluminum alloy 6101-T6. This work also laid emphasis on characterization of ligament geometry in order to understand the mechanical properties of material as geometry plays a very crucial role in the mechanical response of ligaments. The elastic modulus of ligaments was estimated as 13.3 GPa. The yield strength from tension experiment was estimated as 140 MPa and the ultimate tensile strength was estimated as 190MPa
M.S. in Mechanical and Aerospace Engineering, July 2013
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Title: A proposed design of the air testing laboratory for the greater Armour Institute of Technology
Creator: Walter, Charles T
Date: 2009, 1921
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/proposeddesignof00walt
Thesis (B.S.)--Armour Institute of Technology, 1921 B.S. in Mechanical Engineering, 1921

Title: The rotary kiln applied to calcination of phosphates
Creator: Soper, Ellis Clarke
Date: 2009, 1913
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/rotarykilnapplie00sope
Thesis (B.S.)--Armour Institute of Technology, 1913 B.S. in Mechanical Engineering, 1913

Title: The retardation of combustion through wire screens in closed pipes
Creator: Conway, F. J, Hall, K. V
Date: 2009, 1917
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/retardationofcom00conw
Thesis (B.S.)--Armour Institute of Technology, 1917 B.S. in Fire Protection Engineering,...
Show morehttp://www.archive.org/details/retardationofcom00conw
Thesis (B.S.)--Armour Institute of Technology, 1917 B.S. in Fire Protection Engineering, 1917
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Title: PURIFICATION AND CRYSTAL GROWTH OF INI AND ALLOYS IN1-xTLxI AND IN1-xGAxI FOR APPLICATION IN X-RAY AND GAMMA-RAY DETECTORS
Creator: Riabov, Volodymyr
Date: 2016, 2016-07
Description: The present work is focused on developing new semiconductor materials based on Indium Monoiodide (InI) for application in room temperature X...
Show moreThe present work is focused on developing new semiconductor materials based on Indium Monoiodide (InI) for application in room temperature X-ray and gamma-ray detectors. During past two decades InI was studied as room a temperature detector material due to suitable value of the energy gap and high atomic number of its constituents. The most recent studies include investigations at laboratories of Prof. A. Ostrogorsky at Rensselaer Polytechnic Institute (RPI) and Illinois Institute of Technology (IIT) during period 2009-2013. The present work was focused on (i) purification of starting InI material and (ii) crystal growth of InI and InI based alloys with objective to investigate effects of purification and alloying on crystal structure, electrical and mechanical properties. Purification was performed at Radiation Monitoring Devices (RMD) Inc. by innovative techniques combined with well established methods, such as Zone Refining Under Reactive Atmosphere. At RMD, purification was followed by crystal growth of InI by the travelling molten zone method. Crystal growth of InI and alloys In0.99Ga0.01I, In0.99Tl0.01I, In0.95Tl0.05I was performed by Vertical Gradient Freeze (VGF) Method at IIT. The microstructure of produced crystals was analyzed, and their Knoop micro-hardness was measured. The concentration of the dopants as a function of position along the crystals was analyzed by Glow Discharge Mass Spectrometry (GDMS) technique. Band gap of produced materials was estimated as a function of composition by Near-UV-Visible range spectroscopy. Radiation detectors were manufactured from produced crystals. Their electrical properties, such as resistivity, photosensitivity and charge carrier mobility, were measured and, finally, detection performance was estimated.
M.S. in Mechanical and Aerospace Engineering, July 2016
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Title: PROCESSING OF IRON BASED OXIDE DISPERSION STRENGTHENED ALLOYS
Creator: Siddhanthi, Rohan Ashok
Date: 2011-12-19, 2011-12
Description: In this research the Oxide Dispersion Strengthened (ODS) Steel alloy 14 YWT with composition Fe- 14 Cr – 3 W – 0.4 Ti – 0.25 Y2O3 was...
Show moreIn this research the Oxide Dispersion Strengthened (ODS) Steel alloy 14 YWT with composition Fe- 14 Cr – 3 W – 0.4 Ti – 0.25 Y2O3 was consolidated using liquid phase sintering method and it’s mechanical properties were tested and compared with standard materials. Initially the standard composition was prepared by mechanical alloying and cold compacted in to compression samples and then sintered. The consolidated sample density was determined and their compression tests were performed at various temperatures. To improve the strength aluminum powder was added into the mechanically alloyed samples via milling for 15 minutes with the aim to enhance diffusion by liquefying at higher temperatures. Initially specimens with different weight percentage of aluminum were prepared and it was discovered that 2.5% aluminum addition gave the best results; further testing was carried out at this alloy composition. The tests were carried out for 2 different post sintering processes. Tests were also carried out with copper as the sintering agent. A significant increase in yield strength with the addition of 2.5% Al and 10% cold working was observed.
M.S. in Material Science, December 2011
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Title: Rotary kiln
Creator: Soper, E.
Date: 2009, 1910
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/rotarykiln00sope
Thesis (B.S.)--Armour Institute of Technology

Title: Resilience tests of automobile tires under commercial conditions of operation
Creator: Vanderkieft, Nicholas, Yorke, William H
Date: 2009, 1913
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/resiliencetestso00vand
Thesis (B.S.)--Armour Institute of Technology

Title: The representation of automobile engine economy performance by surfaces
Creator: Anderson, H. G., Keeth, J. A
Date: 2009, 1919
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/representationof00ande
Thesis (B.S.)--Armour Institute of Technology, 1919 B.S. in Mechanical Engineering, 1919

Title: The representation of automobile engine characteristics by surfaces
Creator: Cook, Ellis N., Gail, Arthur N
Date: 2009, 1920
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/representationof00cook
Thesis (B.S.)--Armour Institute of Technology

Title: Shock absorption of automobile tires
Creator: Marvin, Norton L., Jackson, Maurice M
Date: 2009, 1920
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/shockabsorptiono00marv
Thesis (B.S.)--Armour Institute of Technology

Title: Computational Techniques for Wind Turbine Power Prediction
Creator: Goyal, Udit
Date: 2011-11-28, 2011-12
Description: Wind energy is expected to play an important role in meeting the ever- increasing energy requirements and reducing our dependence on...
Show moreWind energy is expected to play an important role in meeting the ever- increasing energy requirements and reducing our dependence on conventional sources of energy. Wind turbines are broadly classfied as horizontal-axis and vertical-axis depending upon the orientation of the rotor shaft relative to the wind direction. Considerable research has been carried out on horizontal-axis wind turbines, which today are sophisticated and efficient electro-mechanical systems. Continuous research and development in areas of electronics, controls and instrumentation aids in the advancements of this technology. From an aerodynamic point of view the Betz limit is known to impose theoretical limit on the power extraction of propellers. The momentum balance equations show that the maximum of 59.3 percent of free-stream energy can be extracted by propellers. This limit, however is not well de fined, particularly when considering diff user and nozzle-augmented wind turbines with local flow accelerations. In this study the actuator disk approach is used to model the momentum loss across a wind turbine rotor and simulate the Betz limit using Fluent software. This approach is subsequently applied to study the coefficient of performance expected from dif user and nozzle-augmented wind turbines. Vertical-axis wind turbines, on the other hand, are still not completely understood in terms of blade aerodynamics and are the focus of various research studies. Large variations in angle of attack and wake evolution downstream of the blade have a time-dependent e ffect on the blade forces, instantaneous torque and hence the coefficient of power of the turbine. Since Navier-Stokes solutions for vertical- axis wind turbines are expensive and complicated, various low-cost models have been developed based on momentum balance such as single, double and double multiple- streamtube formulations. These models, however, use static lift and drag data for the airfoils as inputs, neglecting the unsteady e ffects on aerodynamic coefficients. In the present study, an alternative approach based on the panel method is explored further for developing a low-cost computational method for simulating the aerodynamics of vertical-axis wind turbines. At each time step an airfoil is represented as a combination of source and vortex distributions which induce a potential in the flow fi eld. A time-stepping mechanism is implemented satisfying the Kutta and the Kelvin Helmholtz condition for the wake evolution behind the rotating blades. The e ffect of this vortex evolution on the aerodynamic forces on the airfoil is studied, focusing on the coefficient of performance (Cp) of the blade. Results show a decrease in Cp values till the wake attains a quasi steady state. A comparison study is performed with other computational models, showing the importance of the wake evolution in time. An optimization of the blade pitch angle is also performed by defi ning a composite variable pitch function in order to improve the torque and hence the instantaneous power from the blades.
M.S. in Mechanical and Aerospace Engineering, December 2011
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Title: DESIGN AND FABRICATION OF AN UNMANNED GROUND VEHICLE UTILIZING VARIABLE INTERNAL INERTIAL PROPERTIES
Creator: Ruffatto Iii, Donald
Date: 2011-11-27, 2011-12
Description: Mobility of an Unmanned Ground Vehicle (UGV) is highly dependent upon the maximum lateral and longitudinal forces that can be generated at the...
Show moreMobility of an Unmanned Ground Vehicle (UGV) is highly dependent upon the maximum lateral and longitudinal forces that can be generated at the tire/ground interface. These forces are a function of a number of di erent vehicle properties such as suspension geometry, actuators and the tire/terrain interaction mechanics. Typically these properties are xed imposing general limits to the vehicle's maximum achievable lateral and longitudinal accelerations. If you were instead able to modify these parameters dynamically during vehicle operation substantial improvements in robot mobility can be realized. This thesis presents the design a fabrication of the Variable Inertial Vehicle (VIV) which is capable of realizing this. It uses a shifting mass mechanism to vary the normal load distribution among the front and rear tire based upon the desired operating conditions. The shifting mass mechanism is capable of moving a substantial amount of the vehicle along it longitudinally. This provides direction control of the tire normal forces during operation. Described in this thesis is the design of this unique element and its e ects on the rest of the vehicle design. The other main elements di erentiating the VIV from common UGV's such as the electronics, suspension, chassis, and powertrain are also detailed. Finally, a number of experiments utilizing the VIV are presented. These experiments were devised and performed my Chenghui Nie but are presented here to demonstrate the functionality and capabilities of the VIV.
M.S. in Mechanical Engineering, December 2011
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Title: Power developed by an hydraulic ram
Creator: Brock, W. L., Scott, P. J.
Date: 2009, 1906
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/powerdevelopedby00broc
Thesis (B.S.)--Armour Institute of Technology

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