understanding of part three of the experiment. It should also be noted that the secondmoment given in Equation (1) is that about the centroidal axis perpendicular to the load. Ifstudents have not been introduced to this concept (in a Statics course for example), the instructorwill need to present the definition and discuss methods to calculate I for various cross-sectionalshapes. A sample supplemental handout is provided in Appendix B. Though the concept ofsecond moment of area may be new, however, most students could instinctively guess thatcertain cross-sections will deflect less than others (e.g. an I-beam deflects less than a square Page
Page 13.1107.7 Figure 5: (a) Pad Base Gravel/Insulation/Lower Concrete Layer; (b) Initial Piping Installation on Concrete; (c) Final Upper Concrete Layer.A gravel base supports the pad, followed by two-inch insulation boards to reduce heatloss to the ground (Figure 5a). A one-dimensional, finite difference numerical heattransfer analysis of a 6” layer of concrete was performed to determine the benefit ofinsulating concrete with a top temperature of 100 ºF and a lower ground temperature of50 ºF. Insulation produces a 10 ºF higher temperature at the 2” depth where the waterpiping will be located compared to an un-insulated design; this was the reason for the useof insulation.A three-inch concrete layer was poured on the
Engineering graduates must demonstrate (a) an ability toapply knowledge of mathematics, science and engineering; (b) an ability to design andconduct experiments, as well as to analyze and interpret data; (c) an ability to design asystem, component, or process to meet desired needs; (d) an ability to function inmultidisciplinary teams; (e) an ability to identify, formulate and solve engineering problems;(f) an understanding of professional and ethical responsibility; (g) an ability to communicateeffectively; (h) the broad education necessary to understand the impact of engineeringsolutions in a global and societal context; (i) a recognition of the need for and an ability toengage in life-long learning; (j) a knowledge of contemporary issues; and (k
to minimize the thermal contact resistance betweenthe heat sink and simulator. A flat surface-thermocouples was placed on the top side of the block.Subsequently, a heat sink was mounted on the top of the block and fastened with a customdesigned clamp to ensure good contact at the interface and secure the heat sink against the wind.The assembly was installed inside the windtunnel and additional thermocouples were placed onthe side surfaces of the aluminum block, which were then insulated with foam insulation tape toensure that heat is mainly conducted to the heat sink. The complete assembly before installingthe thermocouples is shown in Fig. 1(b). Thermocouples were connected to NI-9213 cDAQ(National InstrumentsTM) based on LabVIEW for data
BSMEprogram moved from the now defunct ABET Student Outcomes a-k to the new ABET StudentOutcomes 1-7 for the 2019-2020 academic year. The new Measurement Systems course wasidentified as an appropriate course to assess ABET Student Outcome 6 that states that studentswill have “an ability to develop and conduct appropriate experimentation, analyze and interpretdata, and use engineering judgment to draw conclusions” [5]. This outcome differed slightlyfrom the previous Student Outcome b; thus, a new assessment was developed.A final significant factor in the course development was the multiyear effort at LTU toincorporate entrepreneurial education throughout the engineering curriculum [6, 7, 8]. As apartner school in KEEN, LTU uses the KEEN framework to
representative.Problem descriptions are provided in the Appendices B and C.Like previous projects, the work was staged with specified deliverables. In the first stage, prior tomodeling, analysis, or design, students were tasked with thinking critically about the market servedby the product in question including stakeholders, funding mechanisms, and available resources.The Stage 1 task list for Fall 2016 is provided below. Stage 1 Describe the operation and major elements of a selective laser sintering system. Identify all stakeholders. Interview stakeholders to determine target applications and appropriate cost target. Identify target materials for use in the prototype system
. Page 22.1227.4the Savery pumpThomas Savery (c1650-1715), building on the work of the earlier philosophers and experimenterswho discovered atmospheric pressure, vacuum conditions, steam characteristics, and therelationships of pressure, area and force, designed the first practical pumping engine. Savery wasissued a patent for his pumping engine in 1698. His engine is shown in Figure 2. The principlecomponents were a “receiver” (R) connected to a suction pipe with a check valve (SV) and adischarge pipe (DP) also with a check valve (DV) installed. The receiver was connected to a boiler(B) via a steam pipe (SP) and steam control valve (SC). Another valve off the discharge pipe, thecondensing jet valve (CJ), allowed some of the water to drain from
tunnel flowvisualization, smoke injection is the usual means to visualize the flows; whereas with watertunnel flow visualization a dye injection method is typically employed. The ability to visualizeflows, and the associated boundary layer separation and vortex shedding phenomenon, forms anextremely important thrust of such introductory courses, and is an invaluable educational tool aswell as a tool for practical engineering design. Smoke Rake Converging Nozzle FLOW Illuminated Separation Bubble Smoke Streams (a) Schematic of Sharp-Edged Nozzle Flow (b) Actual Half-Section Nozzle Flow Figure 1: Wind Tunnel Flow Visualization—Internal FlowThe work presented
. R. A. Streveler, B. M. Olds, R. L. Miller and M. A. Nelson. Using a delphi study to identify the mostdifficult concepts for students to master in thermal and transport science. in American Society for EngineeringEducation Annual Conference & Exposition. 2003. Nashville, TN.2. B. M. Olds, R. A. Streveler, R. L. Miller and M. A. Nelson. Preliminary results from the development of aconcept inventory in thermal and transport science. in American Society of Engineering Education AnnualConference & Exposition. 2004. Salt Lake City, Utah.3. M. J. Cochran and P. R. L. Heron, Development and assessment of research-based tutorials on heat
community.When first presented in April 2003 at the Best Assessment Processes V Symposium5 andsubsequently in October at the Frontiers in Education Conference6, the structure of the FCARdocument was slightly different than that presented here, as that version separated theinformation reported in support of the student outcomes from the remainder of the courseoutcomes. Called “components”, the intent was to draw attention to this information both tomake it a focus of attention and to make this information more readily stand out for ease ofextracting information. An example of an FCAR using components, which is the format stillemployed by the ONU ECCS Department, is presented in Appendix B. Unfortunately, this
Course has to be measured for the mapped criteria. Table 1. ABET Criteria (a-k) and additional ME Program Criteria (l-s). a An ability to apply knowledge of mathematics, science and engineering. b An ability to design and conduct experiments, as well as to analyze and interpret data. c An ability to design a system, component, or process to meet desired needs. d An ability to function in multidisciplinary teams. e An ability to identify, formulate and solve engineering problems. f An understanding of professional and ethical responsibility. g An ability to communicate effectively. h The broad education necessary to understand the impact of engineering solutions in a global and
Paper ID #29212Pre and Post Tenure: Perceptions of Requirements and Impediments forMechanical Engineering and Mechanical Engineering Technology FacultyDr. Benjamin B Wheatley, Bucknell University Benjamin Wheatley was awarded a B.Sc. degree in Engineering from Trinity College (Hartford, CT, USA) in 2011 and a Ph.D. in Mechanical Engineering from Colorado State University (Fort Collins, CO, USA) in 2017. He is currently an Assistant Professor in the Department of Mechanical Engineering at Bucknell University (Lewisburg, PA, USA). His pedagogical areas of interest include active learning ap- proaches, ethics, and best
2006-1986: USING COMPUTATIONAL SOFTWARE ROOT SOLVERS: A NEWPARADIGM FOR PROBLEM SOLUTIONS?B. Hodge, Mississippi State University B. K. Hodge is Professor of Mechanical Engineering at Mississippi State University (MSU) where he serves as the TVA Professor of Energy Systems and the Environment and is a Giles Distinguished Professor and a Grisham Master Teacher. He is the author of more than 170 conference papers and archival journal articles and served as President of the American Society for Engineering Education (ASEE) Southeastern Section for the 1999-2000 Academic Year. He was the 2004-2005 Chair of the Mechanical Engineering Division of the ASEE at the national level.Rogelio Luck
assignments such as, theselection, quantity, tasks associated with each simulation, grading criteria, credit assigned, andstructure. All of these might influence student skill building, understanding of material, andproblem-solving performance. This paper aims to address: (1) comparison of student load relatedto assignments, and (2) assessment of student understanding of select theoretical concepts. Forthe comparison of student load, highlighted differences in the course sections include: (a)number of simulation assignments (3 - 10), (b) number of application assignments (none or 3),and (c) the credit given to these assignments (2.5% or 15%). Surveys were administered to assessstudents’ confidence in the usefulness of each simulation assignment, and
Mechanics Courses”. Journal of Engineering Education. April, 1997: 159-166.[4] Moaveni, Saeed. Finite Element Analysis: Theory and Application with ANSYS. Upper Saddle River: Pearson Education, 2003.[5] Prince, Michael. “Does Active Learning Work? A Review of the Research”. Journal of Engineering Education. July, 2004: 224 -231. APPENDICESAPPENDIX: A An outline of a comprehensive example included in the manual is provided for illustration.APPENDIX: B Some cases are included as an illustration of the problem set included in the manual. Page 11.123.7 APPENDIX
the project. The second mechanism involvedcomparative analysis of the average performance of the students prior to and after the assignmentof the group project. The first questionnaire included the following questions:1) Which of the following has been the best source for learning concepts of thermodynamics? a) Text book b) Class notes c) Peer-to-peer mentoring d) Group discussion e) TA Recitation2) Which form of assessment has been the most useful in helping with self evaluation of performance in the course? a) In-class quizzes b) Home works c) Midterm exams3) Which form of assessment has been the most useful in helping with learning concepts of thermodynamics? a) In-class quizzes b) Home works c) Midterm examsThe
AC 2009-1620: ENTHALPY IN A BOX: TEACHING OPEN VS. CLOSED SYSTEMWORK TERMSAndrew Foley, United States Coast Guard AcademyMichael Plumley, United States Coast Guard Academy Page 14.579.1© American Society for Engineering Education, 2009 Enthalpy in a box Teaching open v closed system work terms.Abstract In teaching a general approach to thermodynamics the authors have reduced the equationcount in their course to basically one accounting equation, the Reynolds Transport equation.While this has been well received by students it does require that they, in turn, have a greaterphysical understanding of problems as success is now
and stress are provided.The closed-form analysis is conducted using Castigliano’s method. Beam and shell finiteelement models are built and analyzed in Abaqus CAE. Structural prototypes are constructedwith PASCO Structures System components and tested with simple weights and scales.The strengths of this combined approach are that the students (a) gain experience with the threedifferent methods of stress/deflection analysis, (b) compare the different methods on a singleproblem, and (c) check or confirm their own results. By using existing finite element softwarelicenses and available PASCO components, the project took no additional lab time and noadditional cost to implement.Since the first use of this lab project was with in a small class, no
AC 2011-1108: A DIMENSIONAL ANALYSIS EXPERIMENT FOR THEFLUID MECHANICS CLASSROOMCharles Forsberg, Hofstra University Charles H. Forsberg is an Associate Professor of Engineering at Hofstra University, where he primarily teaches courses in the thermal/fluids area. He received a B. S. in Mechanical Engineering from Polytech- nic Institute of Brooklyn and an M. S. in Mechanical Engineering and Ph. D. from Columbia University. He is a Licensed Professional Engineer in New York State. Page 22.37.1 c American Society for Engineering Education, 2011 A Dimensional Analysis
diagrams, II, III, and IV, are required for a complete internal force analysis over the full length of the beam.I-2 Free-Body Diagrams. Free-body diagrams are shown in Figure 2. Free-body diagram I is drawn to calculate the support reactions. The supports at A and D are smooth self-aligning bearings, which exert no bending or torsional couples. All unknown internal forces and couples have been assumed in their defined positive directions: normal force: tension, shear force: clockwise moment, and bending couples: positive curvature. Free-body diagrams II, III, and IV, define the internal force system within each of the three continuous loading regions, A-B, B-C, and C-D, respectively. Figure 2. Free
(b) a video clip that demonstrated the operation of the drive. The students reallyenjoyed the video clip demonstration. (a) Actual Parts (b) Operation Video Figure 1. Actual Parts and Operation Video of a Harmonic DriveLaboratory ProjectsThe hands-on laboratory sessions consisted of two different types: weekly lab projects andcourse projects. There were ten weekly laboratory projects that consisted of two portions. Thefirst portion covered the description of the project including objective(s), required parts and partdescriptions, a wiring diagram, a sample program, and step-by-step tutorial instructions attachedin appendices. The second portion required the student to apply the knowledge
simplified as a 1DOF spring-mass-damper system. Figure 1. Typical drop apparatus and mounting scheme [9]2.2 Simplified ModelThe test board supported by four screws in the drop test can be simplified a 1DOF mass-spring-damper system. The equation of motion is M &x&(t ) − B x& (t ) − Kx (t ) ? f ( t ) (1)where M is the mass, B is the damping coefficient, and K is the spring constant of the test board,x(t) is the displacement of the test board of the system, and f(t) is the applied impact impulse. Page 14.715.3The JEDEC standard suggests that the test board be subjected to
the motion. 7 The external resultant force must be in the same direction as the acceleration. Work and Energy 8 Gravitational potential energy can be either positive, zero, or negative. 9 Elastic potential energy can be either positive, zero, or negative. 10 When a spring is stretched by 5 in, it has more elastic potential energy than when it is compressed by 5 in. Conservation of Linear Momentum 11 If two same-size balls A and B are coming from the opposite direction, mA > mB. Ball B will experience a larger change of momentum. 12 If two same-size balls A and B are coming from the opposite direction, mA >
Page 12.1020.43. Access / Hour of Day – expressed as a % totaled for the entire classA sample of the data is displayed:Table 1. Synopsis of the data taken from the tracking tool of Blackboard. This is the Access /Date - recorded for each student, i.e. the total number of visits of the tracking period that wereselected by the instructor. Chapter 9 Phase Diagram Final grade of Supplemental Notes Supplemental Notes student Student Total # visits Total # visits A 18 8 A B 2 0 C
identical time side gears; attached lever arms and add weights on the input and output shafts to balance the mechanism. 5. Complete necessary calculations required to determine the output torque analytically and compare results with gear teeth, lever arms, and input weights. Page 14.1271.7 Figure 2: Assembled and internal components of a clock’s mechanism – (a) front view of entire assembly, and (b) front plate removed to illustrate the meshed gear trains3.2 Motion Analysis of Clock Pendulums (Lab II)The mechanical properties of a clock’s pendulum such as the moment of inertia and frequencywill be analyzed using
alsoprovided sample cores for inspection and testing.Project specificationsIn order to successfully design an alucore testing machine, a team of ME and EE studentsredefined the problem, made sure that they understand the customer’s needs, and determined theproject specifications as precisely as possible. The major considerations that students agreedupon with the industry partner were as follows: 1. Alucore tube information a. Logan Aluminum produces approximately 150 cores per hour b. The test will need to be run once every 50 cores c. OD sizes of cores are 15.93 and 19.93 in d. The length of the cores varies from 10.5 to 61.00 in 2. General requirements a. The machine operation and core testing must be
natural frequencies and modes of vibration using the Rayleigh-Ritz method. b) Have a good understanding of the basics of the FEM. This is achieved solving for natural frequencies and modes of vibration implementing a FEM code in Matlab [4]. c) Have experience with the different types of elements that can be used in the analysis. This is achieved using linear and non-linear beam, shell and solid elements in the finite element code Abaqus [5] or other commercial FEM code. d) Have experience checking the convergence of the results with respect to the degrees of freedom included in the solution. This is achieved defining coarse meshes in the first analyses with a particular element type and
been mentioned, also contribute to the PLC’s value: 18(a) local availably of parts, (b) large installed base, (c) easy for non-engineer technicians tointerface with, (d) understood by a large number of licensed electricians, and (e) very robust anddurable components. The PLC’s ability to execute both non-continuous and continuous controlfunctions and its ubiquitous usage in industry make it a valuable tool in engineering education.ConclusionsImplementing PLCs into a control systems course for mechanical engineering students can enablea natural integration of continuous and non-continuous control theory. The presentation of theindustrial and academic background of PLC development and use has demonstrated the PLC’svalue and versatility
lengthdownstream of airfoil leading edge. Figure 12: Close-up view of velocity contours for 00 (Top) and 140 (Bottom) Next, the student began designing the slotted airfoil in 2-D and conducting a parametricinvestigation. The design of the slot hinged upon four major parameters, namely A) angle of slotrelative to the horizontal, B) draft angle of slot, C) slot width on suction side, and D) position ofslot in terms of chord length percentage. The four parameters can be seen in fig. 13.Figure 13: 2-D view of slotted airfoil with geometric parameters. A: Slot angle to horizontal. B: Draft angle of slot. C: Slot width on suction side. D: Slot position in percent chord length The student suggested that since the baseline airfoil
Plotting the Shear Diagram for the Beam F xSlide 2 Slide 6 A B V F V = L