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Course Criteria
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3.00 Credits
A study of atomic and crystalline structure as a means of understanding material behavior. The influence of defects, strengthening mechanisms and heat treatment are examined. Mechanical strength properties in tension, compression and shear are examined along with the testing means used to determine these properties. Hardness and impact strength and related test procedures are investigated. The iron-carbon phase diagram is studied in the context of selecting the appropriate heat treatment procedure. In addition to metals and alloys coverage extends to ceramics, plastics and composites. Prerequisites: CHEM 101, CHEM 103. Course Objectives Upon successful completion of the course, students will be able to: (1) Identify and classify atomic and crystalline properties of engineering materials. (2) Be alert to the role of micro-structural imperfections as they affect material properties and potential component failure. (3) Apply Young's modulus, the modules of rigidity and Poisson's ratio to the analysis of stress and strain and know means by which those properties are measured. (4) Determine means of mitigating corrosion. (5) Apply an understanding of the iron-carbon phase diagram to the selection of effective heat treatment processes. (6) Broaden their knowledge of material properties to include those of plastics, ceramics and composites. (7) Make correct materials selections for specific applications.
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3.00 Credits
The analysis of tensile and compressive plane stress, shear stress and bearing stress. The compounding of plain and shear stresses in rectilinear coordinates. Rotation of a system of stresses about a single axis leading to equations for the zero sums of forces and moments along and about the remaining principle axis. (Equilibrium). Production of equations for the maximum and minimum principle stresses, maximum shear stress and the principle planes to which these are normal and tangential respectively. Formation of Mohr's circle as a graphical means of analysis. Use of the von Mises criterion. Examination of shear stress and angle of rotation due to torsion. Examination of tensile, compressive and shear stresses due to bending production of shear stress and bending moment diagrams. Formation of the equation of the elastic line and its use in determination of displacement and rotation at a point along beams with concentrated and distributed loads and with simple and fixed supports. Beams with more than two supports. The stability of columns. Stress and displacement of thin wall and thick wall cylinders under internal pressure. The study of shrink fits. Prerequisites: ME 101, MATH 210. Course Objectives Upon successful completion of the course, students will be able to: (1) Determine levels of plane stress and shear stress and associated displacements of objects subject to a variety of loading situations. (2) Determine levels of stress and displacement arising from constrained thermal expansion. (3) Determine shear stress and rotation of cylindrical objects subject to torsion. (4) Determine levels of plane stress and shear stress in prismatic objects subject to bending. (5) Determine displacement and rotation at any point along a beam that is subject to concentrated and/or distributed loads and has simple or fixed support. (6) Draw shear force and bending moment diagrams. (7) Determine principle stress for a compound stress situation and use the von Mises criterion for the stress to be used in analysis aimed at avoiding failure. (8) Design stable columnar structures. (9) Design for shrink fits.
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1.00 Credits
Introduction to materials testing including tension, compression, ductility, hardness, modulus of elasticity in tension and torsion, shear strength, and beam and column testing. A special assignment, including a written report and an oral presentation, is required. Course Objectives Upon successful completion of the course, students will be able to: (1)Gain a working intuition of the behavior of materials. (2) Utilize standardized testing procedures. (3) Design and plan a laboratory test according to ASTM specifications. (4) Use and follow formal record keeping in a laboratory.
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3.00 Credits
The kinetic theory of gases is used to generate the ideal gas law and the law for adiabatic expansion and compression. For adiabatic processes a set of six equations and their reciprocals are generated for the following: final pressure in terms of initial pressure and volume ratio, final volume in terms of initial volume and pressure ratio, final pressure in terms of initial pressure and the temperature ratio, final temperature in terms of initial temperature and pressure ratio, final temperature in terms of initial temperature and volume ratio, final volume in terms of initial volume and temperature ratio. Relationships between constant pressure and constant volume specific heats, the characteristic gas constant and the exponent used in the adiabatic relationships are explained. The use of reduced pressure and temperature (actual value divided by critical value) with the Nelson-Obert generalized compressibility chart provides a factor which when used with the ideal gas law becomes the law for real gasses. Gas/vapor mixtures are discussed. Equations for work in constant pressure, constant temperature, polytrophic and adiabatic situations are derived and one used along with the concept of internal energy change and heat transfer to form the first law of thermodynamics. The concept of enthalpy is introduced. Potential and kinetic energy effects along with enthalpy changes lead to the first law for a flowing system. Power cycles investigated are the Rankine cycle with superheat and reheat, the Brayton cycle with compressor intercooling reheat and regeneration and the Turbo-Diesel cycle. Refrigeration cycles are the vapor compression cycle and the reverse Porceyton cycle. A brief discussion on entropy and the second law. Prerequisite: MATH 190. Course Objectives Upon successful completion of the course, students will be able to: (1) Use the ideal gas law to find pressure, specific volume or absolute temperature providing two of the state points are known. (2) Use the twelve inversions of the law governing an adiabatic or polytrophic process to find for any two of the state points pressure specific volume and absolute temperature, an equation for one in terms of the other. (3) Use the Nelson-Obert chart along with reduced values of pressure and absolute temperature to find the compressibility, so that the ideal gas law can be adapted for use with real gasses. (4) Find the state point values for saturated liquid-vapor mixtures once the mass ratio of the components is known. (5) Determine work done under isobaric, isothermal adiabatic and polytrophic conditions. (6) Apply the first law of thermodynamics in the determinations of heat transferred, change in internal energy and work done. (7) Apply the first law for a flowing system to problems involving pumps, compressors, turbines and heat exchanges. (8) Conduct a complete analysis of a Rankine cycle with super heat and reheat. (9) Conduct a complete analysis of a Brayton cycle with compressor intercooling, turbine reheat, and regeneration. (10) Conduct a complete analysis of a Diesel cycle. (11) Conduct a complete analysis of a vapor-compression refrigeration cycle. (12) Use the concept of entropy to distinguish between perfect and real machines.
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3.00 Credits
No course description available.
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4.00 Credits
The course opens with a definition of terms such as "link," "pair," "revolute" and "mobility." The Chebychev-Grubler-Kutzbach equation is justified and is used to find the mobility of an assortment of mechanisms. Equations for the slider position, velocity and acceleration of the linline and offset slider crank mechanisms are produced. Results for velocity and acceleration generated via the differential calculus and via the application of the finite difference method are compared with those obtained from "Working Model" software. Vector analysis and trigonometry are used to produce and equation for the rocker tip position of the four bar crank-rocker mechanism. Again, values for velocity and acceleration gained from the calculus, the finite difference method and from working model are compared. A graphical method is used to justify Grashuf's theorem. The straight-line mechanisms of Roberts and Chebychev are analyzed. Cycloidal, involute, epicycloidal and hypocycloidal motions are determined using vector analysis. The importance of involute motion is gear tooth. Interaction is examined. Gear trains using gear and pinion, epicyclic and hypocyclic elements are analyzed to determine speed ratio and rotational direction. Graphical and analytical methods are used to design rotary plate cams which impart simple harmonic or cycloidal motion to various follower types. Wedge cams having tangential circular arc, tangential parabola, cycloidal and simple harmonic profiles are designed. The laboratory component involves teams of two or three students producing two detailed professionally presented reports on offset slider-crank and crank-rocker mechanisms which are designed to a set of specifications. Prerequisite: ME 102, MATH 210. Course Objectives Upon successful completion of the course, students will be able to: (1) Determine the mobility of a mechanism. (2) Determine position, velocity and acceleration of the slider of an in-line or off-set slider crank mechanism. (3) Determine velocity and acceleration of a point of interest on a four bar mechanism and the toggle angels for a crank rocker mechanism. (4) Use differential calculus, the finite difference method and commercial software in the determination of velocity and acceleration. (5) Apply the characteristics of epicyclic, hypocyclic and involute motion to machine design. (6) Analyze gear trains. (7) Design rotary (plate) cams. (8) Design wedge cams.
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3.00 Credits
The course begins with the PowerPoint presentation "Familiarization with Pro/ENGINEER" followed by a simple demonstration by the instructor. Twelve lessons follow a pattern where by instructor demonstration of the Pro/ENGINEER feature which is the topic for the evening, is followed by individual student-instructor interactions until students are competent in the use of the feature. The Extrude feature is used to create an electrical bus-bar, a sports emblem, and a bolt-nut-flat washer combination. The Sketch File feature is also used with the bolt-nut-flat washer combination with the addition of a lock washer. Pattern, Hole, and Mirror features are used to complete the work on the electrical bus-bar. Other exercises include creation of an exploded assembly, creation of a drawing file and creation of datum points. These are followed by the use of the Piping and Sweep features and the creation of an assembly using aligned datum's. The Blend, Revolve, Chamfer and Suppcess features are covered. The course ends with the creation of a drawing having a bill of materials. Three sessions are reserved for examination where the students work without assistance on a model prescribed by the instructor. Prerequisite: ET 204. Course Objectives Upon successful completion of the course, students will be able to: (1) Use Pro/ENGINEER to create a solid model of an elementary machine component. (2) Create subassemblies and complete assemblies of components. (3) Decompose the solid model into multiple detailed drawings for manufacture.
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3.00 Credits
The course begins with a discussion of Fourier's law governing steady state axial conduction. The law of continuity is used to expand this into the Poisson equation in rectilinear coordinates, which describes the special temperature field resulting from transient heat flow in three dimensions with internal heat generation. Analytical techniques are limited to solutions involving only two of the four independent variables (three spacial plus temporal). A wide variety of problems are solved including those for which the cross sectional area of the conductor is variable and for which thermal conductivity varies as a function of temperature. The Poisson equation is next derived in popular coordinates. This leads to solutions to conduction problems involving cylinders and annuli with or without internal heat generation. The study of the extended surface provides equations for temperature distribution along the length of a fin and for fin efficiency. The study of convective heat transfer begins with the use of Buckingham Pi theorem to show the importance of Reynolds number and the Prandl number. Correlations for convective heat transfer within conduits and external to surfaces are presented and discussed. In problem solving, the emphasis is on turbulent flow situations. Our work on convection culminates with the design of a shell and tube heat exchange where the concept of log-mean temperature difference is introduced. Our work on radiative heat transfer leads to an equation for an effective heat transfer coefficient when surface temperature changes as a function of time, as in the case for the cooling of steel or aluminum ingots or strip. A conclusive section involves the treatment of nucleate boiling where micro-convection dominates and with film boiling which can lead meltdown. Prerequisite: MATH 310. Course Objectives Upon successful completion of the course, students will be able to: (1) Solve problems in axial heat conduction where the conductor has constant cross sectional area or where the area varies as a function of length along the conductor. (2) Solve problems in axial heat conduction where the thermal conductivity varies as a function of temperature. (3) Solve radial conduction problems with or without internal heat generation. (4) Make appropriate selections among the various extended surface types and determine the efficiency of the selection. (5) Select the appropriate correlation for a convective heat transfer situation. (6) Design a shell and tube heat exchanger to a given set of specifications. (7) Design an ingot cooler with due regard to the contribution of radiation to the overall cooling effectiveness. (8) Determine the point of transition from nucleate boiling to film boiling as a function of heat flux per unit area and be cognizant of its applications where burn-out and melt-down are concerned.
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1.00 Credits
This course provides a means of verifying various elements of heat transfer theory through experiments in conduction, convection, and radiation for gasses and/or liquids. Comprehensive reports are required. Prerequistes: ME 215, ME 405. Course Objectives Upon successful completion of the course, students will be able to: (1) Solve heat transfer problems involving conduction, convection and radiation. (2) Design and carry out experiments, analyze data, and make iterative improvements while using safe and technically correct laboratory techniques. (3) Produce clear, precise, and effective technical documents and oral presentations utilizing word and presentation software. (4) Collaborate with one another in laboratory and classroom settings.
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3.00 Credits
The course begins with a study of fluid statics. This includes buoyancy and the criteria for stability of buoyant objects. The relationship for hydrostatic force on a submerged surface along with the determination of center of pressure is used to solve problems involving vertical and inclined sluice gates. Hydrostatic forces on curved surfaces are determined. Moving into fluid dynamics Bernoulli's equation for incompressible flow is generated and is applied to the determination of static, dynamic and stagnation pressures. It is shown that the general energy equation for steady flows reduces to Bernoulli's equation if terms representing work input and mechanical losses are eliminated. Analysis of hydroelectric power generation is a typical application of the general energy equation. The Buckingham Pi theorem is used to show the importance of Reynolds number in the determination of frictional pressure loss for flow within a conduit. The equation for pressure loss in laminar flow is generated. For turbulent flow the friction factor is determined empirically using for example the Colebrook equation. The concept of relative surface roughness is introduced. The Moody chart is presented. Dynamic head losses are covered for entries, exits, elbows and transitions. Simple piping networks are analyzed. The characteristics of various types of pump are presented. The concept of specific speed is introduced and is used for selecting the best type of pump for a particular application. For external flow the relationships for drag and lift are presented. Appropriate application of a fan, a blower or a compressor for a particular air moving situation is the concluding event of the course. Prerequisites: ME 102, MATH 190. Course Objectives Upon successful completion of the course, students will be able to: (1) Calculate total hydrostatic pressure to which a submerged surface is subjected. (2) Calculate center of pressure for the surface. (3) Design a vertical, inclined or curved sluice gate. (4) Select proper means of measure mass flow rate and fluid velocity. (5) Determine whether a flow is laminar or turbulent. (6) Calculate frictional pressure drop (or head loss) within a conduit from knowledge of Reynolds number and surface roughness with or without the use of the Moody graph. (7) Calculate pressure drop (or head loss) due to entrance effects, elbows and transitions. (8) Determine flow rates in branches of piping networks. (9) Make appropriate selection of pump type for liquid flows using the specific speed concept. (10) Make an appropriate selection between fans, blowers or compressors for gas flows. (11) Calculate lift and drag for airfoils.
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