Engineering Education, 2015 A Hands-on Approach in Teaching Machine DesignIntroductionThe purpose of this paper is to present a modified curriculum for a Machine Design course. Themodified curriculum aims to provide students with hands-on experience in the development ofnew products following procedures used in the research and development departments in theindustry. The hands-on laboratories included in the course Machine Design are carried out afteran introduction to the design philosophy presented by Eggert 1 and most of the first two parts ofthe textbook by Budynas and Nisbett2. The design philosophy included in this course splits thedesign process in five phases1 (formulation, concept design, configuration design, parametricdesign
plate’s transversedeflections due to uniformly distributed pressure are within set limits.To design the orifice plate, a symbolic solver (Wolfram Mathematica) is used to solve thegoverning fourth order differential equation of this problem (plate equation in polar coordinates),with appropriate boundary conditions. Results from the symbolic solver are juxtaposed withresults from a GUI/Menu driven FEM package (Altair Hyperworks suite). Both the symbolic andmenu driven solutions are compared with each other and with published relationships.Governing equations for bending of plates, in polar coordinates (for the orifice plate) have theneed to resolve mathematical singularities for “1/r”, for “r=0” type terms. This when reconciledusing symbolic
machine design courses, was accomplished.The paper describes in detail how the project was implemented and what lessons havebeen learned.1 IntroductionMore general field of mechanical design involves the design of several MachineElements, which are elementary components of a machine. To design mechanicaldevices and systems therefore, one must be competent in the design of individualmachine elements that comprise the system. To this effect Machine Design coursescover general topics such as the principles of strength of materials, the designproperties of materials, combined stresses, design for different types of loading, andthe analysis and design of columns and beams as well as primary machine elementssuch as belt drives, chain drives, gears
on how tomaximize the potential benefits of online homework in university educational settings.Literature reviewIt is commonly believed that learning takes place during doing. Homework assignments, as ameans of practice, remain an important instructional tool for decades in K-12 and collegeeducation.1-3 Through setting up homework assignments at a proper level of difficulty,instructors communicate expectations with students and guide students’ outside class learning;whereas by completing homework assignments, students review course material, practiseproblem solving techniques and develop analytical and critical thinking skills. Gradinghomework assignments also provides instructors an opportunity to assess students’ learningoutcomes and to
results of an advanced analytical model that predicts the idealbehavior of the velocity sensors operating in water. Based on these model results, the studentswere then given two tasks: 1) define the necessary characteristics of a sensor mounting systemthat would allow the sensor to function as desired; and 2) design a suspension system that wouldallow for the necessary mounting behavior, and provide the physical interface between thereplacement sensors and the existing sensor support system. The actual physical dimensions andweights of the various system components were given to the students as constraints in theirdesign development. The educational goal of this effort was to engage students in a challengingand timely project that combines
in the case of stacked layers ofpolystyrene cut in circular disc shape. The filling materials also ranged from shredded paper towood shavings to cotton lint and straw simply stacked in cavities. Figures 1-4 depict some of thedevices built by the students. Figure 1. Project Example #1 Figure 2. Project Example #2 Figure 3. Project Example #3 Figure 4. Project Example #4As may be seen there was a good variety of design concepts and post-consumer materialsutilized in the projects built by the students.Testing procedure On the day of the testing of the devices built by the students each team was provided with
, thermodynamics, and numerical methods. Paul’s research interests are studying the impact of technology in engineering education and computer modeling of atmospheric systems.Dr. Angela C. Shih, California State Polytechnic University, Pomona c American Society for Engineering Education, 2016 A Hands-on, First Year Mechanical Engineering Course1 Background Cal Poly Pomona is one of the only seven polytechnic universities in the nation and its Collegeof Engineering graduates 1 of every 14 engineers in the state of California. Our engineeringgraduates are well-respected and employed by both large corporations and small businesses inCalifornia and around the country. There is a greater need today to
strategies. They outlinedteaching methods that can be integrated into a curriculum to teach the complex cognitive skillsthat experts employ when they apply knowledge to perform complex and or realistic tasks(Collins et. al.1, p. 4). This set of methods merges the traditional model of apprenticeship withthe concepts of situated learning and legitimate peripheral participation of Lave and Wenger. 2 Page 26.1687.2
of these systems as shown in Figure 1.Mechanical systems may include thermal or fluid systems, solid mechanics, dynamics andvibrations. Electronic systems may include sensors, actuators, power systems, andcommunication systems. Control methodologies including digital logic, state machines, andfeedback control theory may be used to direct device actions. Computer systems may includeboth the use of computers in the design phase and the integration of microprocessors into thefinal product. The study of mechatronics is, by nature, interdisciplinary. Figure 1. The interdisciplinary nature of Mechatronics.11Integrated mechatronic design seeks to use a
sections during the Fall 2014 semester. As anIntroduction to Engineering, this course provides a general foundation for the study of engineeringand serves as a first exposure to the Engineering design process. While this course focuses onaspects of the Engineering design process, such as decision matrices and project management, thecourse also introduces limited Physics and Mathematics content in service of the given designproject for the term. As a General Engineering course, students in a given section will have anumber of different declared majors and, while the class is considered introductory and most ofthe students are considered “Freshmen”, there are generally a number of students in each sectionwho have upper-level standing. Table 1 shows
programs, honors education, undergradu- ate seminars, transfer students, community learning opportunities, and undergraduate research education. Finally, the unit collaborates with faculty across campus to develop and implement curricular assessment components of funded grant projects. c American Society for Engineering Education, 2016 Comprehensive Research Experience for Undergraduates George Youssef1, Enrique Ainsworth2, Hannah Whang3, Casey Shapiro3, Marc Levis- Fitzgerald3, and Jane Chang4 1 Department of Mechanical Engineering, San Diego State University 2 Center for Excellence in Engineering and
rapidly toalmost zero level.In an isothermal wall or ceiling jet, the centerline velocity in the second and third zones can beshown to decay as 𝑈𝑥,2 𝑘ℎ 𝑈𝑥,3 √ℎ𝑤 =√𝑥 , =𝑘 (1) 𝑈0 𝑈0 𝑥Where x is the streamwise coordinate, 𝑈𝑥,2 , 𝑈𝑥,3 are the centerline velocities in zones 2 and 3respectively, U0 is the initial velocity of the wall or ceiling air jet, h and w are the height andwidth of the initial incoming air jet cross section, and k is a dimensionless constant ofproportionality.The laminar wall jet was first studied by
,academic needs assessment, exemplified in the creation of a hybrid-electric vehicle engineering(HEVE) program for undergraduates and graduate students at Colorado State University (CSU).The program that was created is used as a case study to illustrate how the process and results ofthe needs assessment guide creation of the learning objectives and program details, so thatreaders can readily utilize this process for their own needs.2. MethodsThe needs assessment process applied was designed by the National Oceanic and AtmosphericAdministration (NOAA) [1]. This methods is applied and documented (in a more narrativeformat) here with only minor modifications required to apply the process to engineeringcurriculum objectives development needs assessment
Mechanical and Industrial Engineering at the University of Toronto for his work characterizing the motion and mixing of droplets in Digital Microfluidic Devices. He continued as a Postdoctoral Fellow at the University of Toronto where he focused on the design and commercialization of a point of care Digital Microfluidic device. During this time, Dr. Schertzer was also a sessional lecturer at Ryerson University (Toronto, ON) where he taught (1) Integrated Manufacturing and (2) Design of BioMEMS. Since joining RIT, Dr. Schertzer has had the opportunity to teach (1) Thermodynamics I, (2) Engineering Measurements Labo- ratory, and (3) Laboratory Applications in Mechatronics.Dr. Patricia Iglesias, Rochester Institute of
completionof the course, students will be able to: 1. Complete a flowchart of how to solve a problem; 2. Use a computer program to solve an engineering problem; 3. Correctly and clearly plot the results of calculations; 4. Program a microprocessor; and 5. Use software to accurately represent a 3-dimensional object.Prior to this curriculum change, mechanical engineers were not all exposed to microprocessorprogramming. A number of students employed them in club, competition, or capstone projects,but this was generally a minority. Department faculty decided to seize the opportunity in thisnew course to introduce microcontrollers to all mechanical engineering students. Not only is itan engaging way of exercising and reinforcing recently
students to satisfy the boundaryconditions in the space direction of the polynomial/ circular function. The last part of thisundertaking also serves to refresh students' skills in solving ordinary differential equations.At this point, the integral method will be presented in terms of the aforementioned two problems.The first problem is taken from Incropora's text; its statement is as follows:A fireclay brick 1 m by 1 m on a side, is subject to a maintained temperature of 500 K on itsthree sides while the remaining surface is exposed to an airstream of 300 K and convective heat ! !transfer coefficient of 10 . Thermal conductivity of fireclay brick is 1
, electronic packaging, and bio-medical engineering. He has supervised to completion 26 MSME students and 5 PhD students. Publications include 1 book chapter, 32 journal publications, 47 refereed conference proceedings, 29 non-refereed publications, and 27 non-refereed presentations. He is respon- sible for funds as PI or Co-PI from 52 separate proposals totaling almost $6,500,000. Courses taught include undergraduate finite elements, thermodynamics, fluid dynamics, heat transfer, and engineering economics and ethics, and graduate finite elements, numerical methods, thermodynamics, statistical me- chanics, plasma fundamentals and gas dynamics.Bradley S. Davidson, University of Denver Dr. Bradley Davidson is an Assistant
bond wafers, environmental degradation of polymers, and biomechanics of walking. Dr. Youssef has several publications in archival peer-reviewed journals. His research has been supported by National Science Foundation, Department of Defense, and private industries. Dr. Youssef was recognized in 2014 by San Fernando Engineers Council as Distinguished Engineering Educator and is one of the 2016 Society of Automotive Engineers (SAE) Ralph R. Teetor Award winners.Vladimir Arutyunov, California State University Northridge c American Society for Engineering Education, 2016 An Approach to Integrate Systems Engineering into Senior Design George Youssef, Ph.D.1 and
freshman engineering programs aimed at increasing experiential learning andpromoting student success 1-4. The primary goal of these efforts are generally to improve studentunderstanding, confidence, performance, and retention. These programs have proven to belargely successful in achieving the desired ends and are often very popular with the student body;however, it has also been found that a significant portion of students (~20% or more) may stillstruggle when leaving these freshman environments and entering the more traditionalengineering courses later in their curriculum 2, 5. This may be especially true for courses centeredon the thermal sciences such as thermodynamics, heat transfer, and fluid mechanics, the coreconcepts of which have been
subject theirparts to physical testing to verify that certain performance requirements had been met. This alsoallowed them to compare the deflection predictions (made using FEA) with the actual deflectionsunder load. The overall goal of these changes was for the students to come to a clearerunderstanding of how the successful and informed execution of FEA in the design process couldpositively affect the ultimate performance of their designs.The effectiveness of this active, project-based learning approach was assessed through instructorevaluation of student performance, student questionnaires, and solicitation of oral comments.Written student evaluations of the experience indicated that the students (1) enjoyed actuallyseeing their products come
improvement in student retention of second law concepts.Further, the study quantifies the impact of the redesigned FTC on students’ ability to besuccessful in the STC.IntroductionThe current study evaluates the impact of a redesign of the first course on thermodynamics,(FTC) as reported in Jacobs, et al.1, on retention of important second law concepts. The redesignof the FTC occurred during 2011 – 2014; some students who had both the conventional andredesigned FTC have taken the second thermodynamics course (STC). One way to assess thepossible improvement of the redesigned FTC is by quantifying concept retention of FTCconcepts. As the redesigned FTC is meant to improve understanding and retention of second lawconcepts, this study attempts to quantify
, 1-2 July 2011. He has been a member of Institute of Electrical and Electronics Engineers (IEEE) since 1987. He has also been a senior member of International Association of Computer Science and Information Technology (IACSIT) since 2011.Dr. Chia-Chi Wang, National Sun Yat-Sen UniversityProf. Yu-Jen Wang, National Sun Yat-Sen University Yu-Jen Wang was born in Tainan, Taiwan, in 1977. He received his Ph.D. from Department of Power Mechanical Engineering at National Tsing Hua University, Taiwan, in 2011. Currently, he is an as- sistant professor of Mechanical and Electromechanical Engineering Department, National Sun Yat-sen University, Taiwan. His major research interests include machine dynamics, actuator design and
, where approximately half the course is in 2Dconcepts, and the other half covers 3D concepts. This study pursues the assessment of anybenefits on spatial visualization by students having 3D concepts in addition to 2D concepts intheir curriculum. The study was completed at two institutions, in institution (A – University of Wisconsin,Waukesha Campus) there is now a hybrid semester course where half of the course usesAutodesk’s AutoCAD, and the other half of the semester is done utilizing Autodesk’s Inventor.The other participating institution (B – Western Michigan University) offers a semester coursewhich is based on instruction utilizing solid modeling packages, first Siemens’ NX and thenDessault Systemes’ CATIA. Table 1 summarizes the
featuresand functions of the product. Vishwanathan conducted an in-depth study of graduate designstudents to identify the beneficial practices of prototyping6. The heuristics suggested by thisstudy include “use standardized parts”, “support model building with analytical calculations” and“avoid detailing early prototypes to reduce the effects of sunk cost”.6 Also the DoD study3suggests the following best practices for successful prototyping:1. Prototypes should aim to test key design attributes associated with the highest level of uncertainty.2. Prototyping effort should only focus on the minimum necessary requirements specified.3. During the prototyping stage there should be no commitment to production.4. Once the prototyping process is underway
tutorapplications were used as a supplement to conventional teaching material to allow a self-paced review.The concept tutors were tested in an experimental/control group setting. The quantitative andqualitative results obtained from surveys show that students find such materials useful in thelearning process. This work presents the development methodology of such tutors,implementation in class and the evaluation results.Keywords: Pedagogy (Didactics) of Higher Education, Knowledge Gain, EngineeringEducation Research, Course Construction, Computer Aided Learning1. Introduction: The advance in technology inspires the rise new teaching-learning methodologies inform of videoconferences, chats and blogs, podcasting [1], webcasting and webinars [1],video
Mathworks® software, Matlab andSimulink. The full list of laboratory exercises is given in Table 1, with descriptions following. Table 1: Simulation-Based Lab Exercises Lab Number Description 1 Introduction to Matlab, Simulink, and LabVIEW 2 System Modeling in Matlab/Simulink 3 Modeling and Simulation of Second Order Systems 4 Modeling and Simulation of Higher Order Systems 5 Introduction to Frequency Response 6 Selection and Performance of Filters 7 Introduction to Feedback Control 8 Ziegler-Nichols PID TuningLab 1Lab exercise 1
in the engineering department by a mechanical engineering faculty member, who’sresearch background is in computational fluid dynamics. The curriculum employs many of thenewer pedagogical approaches including a pseudo flipped classroom4, Process-Oriented GuidedInquiry Learning (POGIL) method5, clicker questions, and kinesthetic lectures6. In addition,traditional techniques are still used such as an abbreviated, concise board lectures and hand-written exams.Aside from the peer learning methods implemented and discussed in this paper, the othersignificant change that was made from Spring 2013 to Spring 2014 is the total amount of in-classcontact hours. As of Spring 2014, the course meets twice per week for 1 hour and 50 minutes,which is an
-plane and out-of-plane stiffness targets whilemaintaining minimum cost. They were given a list of materials to be used that included materialproperties and approximate costs (Table 1). Students were restricted to constructing their beamfrom five plates. Those plates could be used in any symmetric combination of the materials andsizes given. Examples of possible configurations were also given (Figure 1). Students used avariety of methods to compare the various combinations including analyzing a subset of thepossible combinations and choosing one, creating a spreadsheet analyzing all possiblecombinations, and writing a computer program to analyze all possible combinations. Table 1 – Composite Beam Layer Options
change, a multiplecase study approach was utilized. Semi-structured interviews were conducted with studentstowards the end of a semester-long heat transfer course. Interviews were coded to identify 1)learning approaches focused on developing conceptual or procedural knowledge, and 2) students’conceptual knowledge of the heat transfer material. All participants in the study discussed learning approaches that were aimed at developingprocedural knowledge. Some students discussed balanced learning approaches focused ondeveloping both conceptual and procedural knowledge, while other students primarily discussedapproaches focused on developing procedural knowledge. We compared the learning approachesand the conceptual knowledge of students who
-regulation: cognition, motivation/affect, behavior,and context1. This project focuses on the first two areas—cognition and motivation. Ourobjective is to develop and test two e-learning modules that raise student awareness of their owncognition and motivation and subsequently provide strategies for improving learning. We testwhether a short intervention—spending 60-90 minutes taking the modules—can have an effecton indicators of lifelong learning ability.MethodsFigures 1 and 2 show the architectures of the two modules that have been developed. In the areaof cognition, we focus on learning styles. For motivation, we focus on two aspects: task valueand control beliefs. The modules were designed such that module takers would experiencedifferent