Conference Session

Thermodynamics, Fluids, and Heat Transfer I

Collection

2009 Annual Conference & Exposition

Authors

Andrew Foley, United States Coast Guard Academy; Michael Plumley, United States Coast Guard Academy

Tagged Divisions

Mechanical Engineering

accounting equation for this case. i.e. S& / S& − ( m& s ) / ( m& s ) − S& ? S& in out in out gen . CV (3) Again, assuming a steady state condition has arisen, this reduces to: S&1 ? m& ( s1 / s 2 ) − S& gen . (4) Where S&1 is the rate of entropy transport out of the control volume by virtue of the heat

Conference Session

Thermodynamics, Fluids, and Heat Transfer II

Collection

2009 Annual Conference & Exposition

Authors

Laura L. Pauley, Pennsylvania State University

Tagged Divisions

Mechanical Engineering

show the variable substitution in an equation, enter “[ctrl sft .] explicit,ALL”.(The three keystrokes in the brackets are pressed down at the same time. No spaces areincluded in the command line.) This can also be done using the Symbolic window by typingthe name of the variable being solved, clicking on “explicit” in the symbolic window, andthen typing “,ALL”. Example 2 in the Appendix uses “explicit,ALL” in the solution asshown below: PA := SGoil⋅ρ water⋅g⋅h ⎡ P.A explicit, ALL → 0.86⋅⎢998⋅⎜ ⎛ kg ⎞⎤ ⋅⎡9.81⋅⎛ m ⎞⎤ ⋅( 2⋅cm) 3 ⎟⎥ ⎢ ⎜ 2 ⎟⎥ ⎣ ⎝ m ⎠⎦ ⎣ ⎝ s ⎠⎦The gravitational

Conference Session

Mechanical Engineering Poster Session

Collection

2009 Annual Conference & Exposition

Authors

Rogelio Luck, Mississippi State University; B.K. Hodge

Tagged Divisions

Mechanical Engineering

. kg Qa∧ Ca − S1 − Qb ∧ C b − S3 − S5 / Qd ∧ C 5 / Qc∧ C3 ? 0 s The carbon monoxide contributions from each area are reasonable in that they add up to 100 %. smoker − grill − intake ? 100 ∧ % Page 14.65.9 Figure 2. Concluded.Problem 1 . Given : Consider the water heater problem shown below. The thermostat setting for turning the heaters off is 130 F. Assume a water flowrate demand of 2gpm starting 100 minutes after turning on the heaters and the same

Conference Session

Trends in Mechanical Engineering I

Collection

2009 Annual Conference & Exposition

Authors

Jiang Zhou, Lamar University; Paul Corder, Lamar University; Hsing-wei Chu, Lamar University; Kendrick Aung, Lamar University

Tagged Divisions

Mechanical Engineering

. Figure 3. Block diagram and SIMULINK model for the 1DOF systemAssume the mass of a printed circuit board (“PCB”) board M is 25 gram and the spring constantK is 40 N/mm. The input half-sine function is defined by the JEDEC standard as peakacceleration A0 is 1500 Gs and time duration ϖ is 0.5 milliseconds. With these parameters definedin the MATLAB/SIMULINK model, the input pulse and system dynamic response for the outputdisplacement and acceleration are obtained in Figures 4-6. The horizontal axis is time (s) and thevertical axis is the input excitation corresponding to Gs, displacement (m), and acceleration (Gs),respectively. The output displacement oscillates up and down with the same peak value

Conference Session

Improving Mechanics & Structural Modeling Courses

Collection

2009 Annual Conference & Exposition

Authors

Arnaldo Mazzei, Kettering University; Richard Scott, University of Michigan

Tagged Divisions

Mechanical Engineering

: W ? bhL τ g (3)Where τ is the mass density and g ? 9.81 m s 2 .The problem is one of multi-objective optimization, namely, the simultaneous minimization ofυm and W , with b and h as design variables.Several interesting and informative points arise at this juncture. The aim here is to raise somequestions, and answer some of them, that should expand student horizons and make them moreaware, in particular, of some design issues. 6 PLLet f1 ( … bhL τ g ) be the weight objective function and f 2 ( … ) be the stress objective

Conference Session

Mechanical Engineering Poster Session

Collection

2009 Annual Conference & Exposition

Authors

Bijan Sepahpour, The College of New Jersey

Tagged Divisions

Mechanical Engineering

roots of the beams. Since these sensors are an integral part of the beams,they would experience the same levels of stress / strain. At a certain level of deformation, theywill generate the necessary level of voltage to activate the switch(es) for deploying the airbag(s). Page 14.795.2 Proceedings of the 2009 American Society for Engineering Education Annual Conference & Exposition Copyright © 2009, American Society for Engineering Education m – 1 = Hanging (proof) mass #1 m – 2

Conference Session

Trends in Mechanical Engineering I

Collection

2009 Annual Conference & Exposition

Authors

Charles Forsberg, Hofstra University

Tagged Divisions

Mechanical Engineering

AC 2009-815: USE OF THE KNOWLEDGE AND SKILL BUILDER (KSB)FORMAT IN A SENIOR MECHANICAL ENGINEERING LABORATORYCharles Forsberg, Hofstra University Charles H. Forsberg is an Associate Professor of Engineering at Hofstra University, where he teaches courses in computer programming and the thermal/fluids area of mechanical engineering. He received a B. S. in Mechanical Engineering from the Polytechnic Institute of Brooklyn (now Polytechnic Institute of NYU), and an M. S. in Mechanical Engineering and Ph. D. from Columbia University. He is a Licensed Professional Engineer in New York State. Page

Conference Session

Mechanical Engineering Poster Session

Collection

2009 Annual Conference & Exposition

Authors

Aman Yadav, Purdue University; Gregory Shaver, Purdue University; Peter Meckl, Purdue University

Tagged Divisions

Mechanical Engineering

paper did notexamine actual measure of student learning and only reported their perception of learning. Futureresearch needs to specifically examine measures of student learning by using “methodologicallysophisticated, qualitative methods such as, interviews, journals entries, observations, and casestudies of particular students as alternatives to standardized objective tests or constructed caseanalysis tests” 8. Page 14.344.7References:1. Williams, S. M. "Putting Case-Based Instruction into Context: Examples from Legal and Medical Education." The Journal of Learning Sciences 2, no. 4 (1992): 367-427.2. Mayo, J. A. "Case-Based Instruction

Conference Session

Thermodynamics, Fluids, and Heat Transfer II

Collection

2009 Annual Conference & Exposition

Authors

Subrata Bhattacharjee, San Diego State University; Christopher Paolini, San Diego State University

Tagged Divisions

Mechanical Engineering

sufficient forfinding an equilibrium state. Press the Enter key or the Calculate button and the complete state iscalculated and displayed. The green background signifies input and the cyan backgroundindicates a computed property. The property symbols are also color coded – red for materialproperties such as the molar mass MM, blue for all thermodynamic properties, green for extrinsicproperties, and black for system properties34. Page 14.1187.6While the ideal gas table displays only hk (T ) , uk (T ) , and sk0 (T ) , the state daemon producesthe complete set of thermodynamic properties – v , u , h , s , g , and c p . To obtain mole basedvalues

Conference Session

Design Projects in Mechanical Engineering I

Collection

2009 Annual Conference & Exposition

Authors

Sophoria Westmoreland, University of Maryland; Ashley Grenier, University of Maryland; Linda Schmidt, University of Maryland

Tagged Divisions

Mechanical Engineering

relationship between two randomvariables are linear, and, therefore correlated instead of random. R1’s and R2’s correlation onthe coding of McGown level sketches is statistically significant (p-value = 0.048). R1’s andR2’s correlation on the coding Yang level sketches is also statistically significant (p-value =0.006). The relationships between R1 and R2 coding with McGown and Yang sketch codingschemes are strong, 0.881 and 0.972 respectively. Page 14.1063.9The results of the coding indicate that the vast majority of the 418 sketches were coded in thelowest 2 levels of both sketch-coding schemes. The average number of sketches in level 1 forMcGown’s

Conference Session

Mechanical Engineering Poster Session

Collection

2009 Annual Conference & Exposition

Authors

Nihad Dukhan, University of Detroit, Mercy; Mark Schumack, University of Detroit, Mercy

Tagged Divisions

Mechanical Engineering

challenged by this activity. strongly agree agree neutral disagree strongly disagreeexhibit an appreciation Did you speak with the resident(s) I believe my conversation Page 14.102.4of communication with about the benefits of your energy- with the residents wasnon-engineers

Conference Session

Trends in Mechanical Engineering I

Collection

2009 Annual Conference & Exposition

Authors

Ashland Brown, University of the Pacific; Kris Wood, University of Texas; Kristen Kaufman, Grad Student Universiy ot Texas; Daniel Jensen, United States Air Force Academy; Joseph Rencis, University of Arkansas; Christina White, Columbia University

Tagged Divisions

Mechanical Engineering

other hand prefer more of a relatively passive role andgain energy internally. The second category describes how a person processes information.People who process data with their senses are referred to as Sensors (S), and a person who seeswhere data is going in the future is called an iNtuitor (N). The Sensor versus iNtuitor category isan interesting area of study when it comes to engineering education, because professors arehistorically intuitors while most engineering students are sensors50. The third category for MBTI Page 14.75.6preference describes the manner in which a person evaluates information. Those who tend to usea logical cause and

Conference Session

Improving Mechanics & Structural Modeling Courses

Collection

2009 Annual Conference & Exposition

Authors

Raghu Echempati, Kettering University; Andrew Fox, Kettering University

Tagged Divisions

Mechanical Engineering

undergraduate or even at the graduate levels. Numerous studies were reported in thepast by analyzing the ‘instantaneous structure’ of the mechanism in different orientationsto identify the most critical orientation(s) of the mechanism and the high stress or highdeflection locations in the members of the flexible mechanisms. Several special purposecomputer programs have also been written by different academic and industry researchersthat address this issue to some extent1,2 (for example), but there seems to be no evidenceof an undergraduate course that combines these two approaches. Simplified theory thatcovers the important mechanism design and FEA concepts can be complimented byvalidation using simulation tools. This may be a good starting point

Conference Session

Trends in Mechanical Engineering II

Collection

2009 Annual Conference & Exposition

Authors

Craig Somerton, Michigan State University

Tagged Divisions

Mechanical Engineering

) #DIV/0! Thermal Expansion 1/K #DIV/0! Thermal Conductivity W/(m∧K) #DIV/0! 2 Thermal Diffusivity m /s #DIV/0! 2 Dynamic Viscosity N∧s/m #DIV/0! 2 Kinematic Viscosity m /s #DIV/0! Prandtl Number NONE #DIV/0!Dark shaded cells will be user input. Values for light shaded cells will be inputtedduring testing by the course instructor.Once the spreadsheet is

Conference Session

Trends in Mechanical Engineering II

Collection

2009 Annual Conference & Exposition

Authors

Ping Ren, Virginia Tech; Janis Terpenny, Virginia Tech; Dennis Hong; Richard Goff, Virginia Tech

Tagged Divisions

Mechanical Engineering

instructors’ own notes to deliver advanced topics. The instructors of Courses 1, 6 and 12 use the books they authored as the textbooks, but they also provide other references. Among all the courses listed in Table 1, one textbook (first and later editions) received the greatest popularity, being chosen as the textbook by at least three instructors. This textbook is: Spong, M.W. and M. Vidyasagar, Robot Dynamics and Control. 1989, John Wiley & Sons, Inc. and its latest version: Spong, M.W., Hutchinson, S., and M. Vidyasagar, Robot Modeling and Control. 2006, John Wiley & Sons, Inc. This textbook sufficiently discusses the fundamentals of rigid body coordinates transformations, formulation of kinematics, dynamics and

Conference Session

Thermodynamics, Fluids, and Heat Transfer II

Collection

2009 Annual Conference & Exposition

Authors

Amir Karimi, University of Texas, San Antonio

Tagged Divisions

Mechanical Engineering

the introduction of personal computers (PCs) in the early 1980’s, complex computer Page 14.17.2codes were needed for numerical solution of heat transfer problems. Access to mainframecomputers and proficiency in such programming languages as FORTRAN and PASCAL werenecessary for solving complex heat transfer problems. As the personal computers became moreavailable and affordable, and as the operating systems became more user friendly, theirapplications were gradually integrated into introductory heat transfer courses. Simpleprogramming languages such as BASIC were used for solving simple heat transfer problems inlate 1980s or early 1990s. During

Conference Session

Outstanding Contributions to Mechanical Engineering Education

Collection

2009 Annual Conference & Exposition

Authors

Sivakumar Krishnan, Indiana University-Purdue University, Indianapolis; M. Razi Nalim, Indiana University-Purdue University, Indianapolis

Tagged Divisions

Mechanical Engineering

Academic Librarianship, 34:1, pp. 25 -30, 2008.3. Acar, B. S., Newman, I. A. “Students as Tutors-Learning Problem-Solving Skills by Tutoring PBL” International Journal of Engineering Education, 19:5, pp. 712-716, 2003.4. Denayer, I., Thaels, K., Sloten, J. Vander and Gobin, R. “Teaching a structured approach to the design process for undergraduate engineering students by problem-based education” European Journal of Engineering Education, 28:2, pp. 203 – 214, 2003.5. Said, S. M., Adikan, F. R. Mahamd, Mekhilef, S. and Rahim, N. Abd “Implementation of the problem-based learning approach in the Department of Electrical Engineering, University of Malaya” European Journal of Engineering Education, 30:1, pp. 129 - 136, 2005.6

Conference Session

Student Learning and Assessment

Collection

2009 Annual Conference & Exposition

Authors

Constantin Ciocanel, Northern Arizona University; Suzanne Pieper, Northern Arizona University

Tagged Divisions

Mechanical Engineering

reports, exams and quizzes)to evaluate students’ growth, a number of questionnaires were administered during the semester.The quantitative metrics as well as students’ feedback indicated overall student growth duringthe semester. Students reported that changing teaching approaches kept them motivated andengaged in the activities associated with the lab. These findings entice the authors to consider thethree-way approach in future semesters and to refine it by building on its strengths. Page 14.133.9Bibliography1. Fink, L., Ambrose, S., and Wheeler, D., “Becoming a Professional Engineering Educator: A New Role for a New Era,” Journal of

Conference Session

Student Learning and Assessment

Collection

2009 Annual Conference & Exposition

Authors

Andre Butler, Mercer University; William Moses, Mercer University

Tagged Divisions

Mechanical Engineering

identifiesexpected outcomes, assesses the extent to which it achieves these outcomes, and providesevidence of improvement based on analysis of the results in each of the following areas: 3.3.1.1educational programs, to include student learning outcomes . . .”6Within the Mercer School of Engineering this assessment is conducted by an evaluation ofstudent work from one open-ended experiment assignment. All reports for this lab assignmentare assessed by a team of three faculty members [usually including the course instructor(s)]. Thefaculty members assess each of four tasks separately7,8: design of experiment, conduct ofexperiment, analysis of data, and interpretation of data. Each lab group’s performance withrespect to each task is scored on a 1 to 5 scale

Conference Session

Mechanical Engineering Poster Session

Collection

2009 Annual Conference & Exposition

Authors

Wael Mokhtar, Grand Valley State University

Tagged Divisions

Mechanical Engineering

editing this paper.Bibliography1. Parker, J., Cordes, D., and Richardson, J., “Engineering Design in the Freshman Year at The University of Alabama - Foundation Coalition Program”, Proceedings of the Frontiers in Education 25th Annual Conference, Atlanta, GA, November, 1995.The bibliography must begin four spaces below the body of the paper.2. Todd, R., Magleby, S., Sorensen, C., Swan, B., and Anthonya, D., “A Survey of Capstone Engineering Courses in North America”, Journal of Engineering Education, pp 165-174, April 1995.3. Duesing, P., Baumann, D., McDonald, D., Walworth, M., and Anderson, R.,“Learning and Practicing the Design Review Process in Senior Capstone Design Classes” ASEE Annual Conference proceedings, no

Conference Session

Statics and Dynamics: What's New

Collection

2009 Annual Conference & Exposition

Authors

George Sutherland, Rochester Institute of Technology

Tagged Divisions

Mechanical Engineering

will be 8 characteristic points corresponding to the 4 revolute joints. In absolutecoordinates, the location of characteristic point 5 is, for example, x5 = X2 + r5•cos( 2+ 5) y5 = Y2 + r5•sin( 2+ 5) (1)where X2 and Y2 define the absolute location of the mass center for body 2, and 2 is the CCWrotation of body 2’s body-fixed coordinate system. In this example, if link 2 has its massdistributed symmetrically with respective to the line between its revolute joints, the body-fixedcoordinate system x-axis can be lined up with the coupler link line shown and 5 will be zero and 4 will be . With the same symmetric mass distribution assumption, the other characteristicpoint (xi,yi

Conference Session

Outstanding Contributions to Mechanical Engineering Education

Collection

2009 Annual Conference & Exposition

Authors

John Wagner, Clemson University; Katie Knaub, National Association of Watch and Clock Collectors

Tagged Divisions

Mechanical Engineering

Sundial (1500BC) – Early Civilizations Cell Phone (1990s) – German Reunification Water Clocks (1400BC) – Thebes, Egyptian Capital Personal Computer with Clock (1980s) - Poland’s Soldarity Movement Sand Hourglass (300BC) – Construction of Great Wall of China Timex Wrist Watch (1950’s) – Space Race Begins Weight Driven Clocks (1270 AD

Conference Session

Student Learning and Assessment

Collection

2009 Annual Conference & Exposition

Authors

Raghu Echempati, Kettering University; Enayat Mahajerin, Saginaw Valley State University; Anca Sala, Baker College

Tagged Divisions

Mechanical Engineering

extent. As mentioned before, several assessmenttools have been identified such as classwork/homework, quizzes/exams and projects.Sincere attempt is made to refer to the CLOs while designing the contents of theassessment tools used. For example, each exam question clearly stated the concept beingtested in that question, and to what extent that question addresses the CLO(s) and how itmaps the PO(s). Students were informed where this information will be used. The statedCLO(s) is/are assumed to be satisfied based on their achieving a certain grade on thatquestion. This is repeated for all assessment tools used in this course, particularly for thefinal project, in which the students used math and CAE tools to a great extent. At first, itlooks like

Conference Session

Mechanical Engineering Poster Session

Collection

2009 Annual Conference & Exposition

Authors

Yaomin Dong, Kettering University; Jacqueline El-Sayed, Kettering University

Tagged Divisions

Mechanical Engineering

lecturers Provide field trip for immersion learning at industrial sight Design assessments Page 14.55.4 Timeline for developmentTable 1 shows the template of the team teaching course outline, where the weekly topicsare tabulated. This template can be modified based upon the instructor’s course and typeof project. It is best geared for use in courses beyond the freshman year when the studentshave enough background for more sophisticated team projects.Table 1 Template of Team Teaching Course OutlineWeek First class period Second class period1 Introduction to class with prof(s) Overview of

Conference Session

Outstanding Contributions to Mechanical Engineering Education

Collection

2009 Annual Conference & Exposition

Authors

Steven O'Halloran, University of Portland; Timothy Doughty, University of Portland

Tagged Divisions

Mechanical Engineering

60 Temperature (deg. C) 50 40 30 20 10 0 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 Time (s) Figure 2: Temperature distribution of cylinder with time.ExperimentIn the Systems and Measurement course, the same students conducted an experiment, cooling thesame cylinder that was analyzed previously using finite difference techniques. The primary goalof the laboratory was to determine an estimate of the heat transfer

Conference Session

Design Projects in Mechanical Engineering I

Collection

2009 Annual Conference & Exposition

Authors

Tim Brower, Oregon Institute of Technology

Tagged Divisions

Mechanical Engineering

14.1118.11Appendix I Appendix II Group Project Laboratory Hydro PowerPURPOSE:• to function effectively on teams,• to communicate effectively via a specification interface document,• to have a commitment to quality & timeliness,• to integrate multiple components to make a device,• to demonstrate ideas for turning water into power,• to show sustainability in the overall design of the device,• to use project management techniques.REQUIREMENTS:Horse Power Generation: hp = 0.003 + 10%Height: weight(s) must travel 8 feetAssembly time: < 30 minutesWeight of entire device: < 5 lbfSize: See rules belowParts of the device that must “stand alone” are the Nozzle

Conference Session

Thermodynamics, Fluids, and Heat Transfer II

Collection

2009 Annual Conference & Exposition

Authors

Michael Maixner, United States Air Force Academy; James Baughn, UC Davis

Tagged Divisions

Mechanical Engineering

AC 2009-430: A SIMPLE, AFFORDABLE STEADY-STATE FIN HEAT TRANSFERMINI-LAB/DEMOMichael Maixner, United States Air Force Academy Michael Rex Maixner graduated with distinction from the U. S. Naval Academy, and served as a commissioned officer in the USN for 25 years; his first 12 years were spent as a shipboard officer, while his remaining service was spent strictly in engineering assignments. He received his Ocean Engineer and SMME degrees from MIT, and his Ph.D. in mechanical engineering from the Naval Postgraduate School. He served as an Instructor at the Naval Postgraduate School and as a Professor of Engineering at Maine Maritime Academy; he is currently a member of the Department

Conference Session

Design Projects in Mechanical Engineering I

Collection

2009 Annual Conference & Exposition

Authors

Tony Jones, United States Army; Daisie Boettner, United States Military Academy; Joel Dillon, United States Military Academy; Stephanie Ivey; Anna Lambert, University of Memphis; Brian Novoselich, United States Military Academy; Stephen Suhr, United States Military Academy

Tagged Divisions

Mechanical Engineering

design is grounded in technical knowledge applied to problem solving,contemporary engineering design expands design to reflect the importance of human connectionsthrough clear communication, strong problem solving strategies, and dynamic leadership.Communication Processes and Group ProductivitySince the early 1970’s, research studies of effective group characteristics have consistentlydemonstrated strong links between the levels of group communication and group performance.1,2, 3, 4, 5 Tschan’s 1995 study reported that “groups engaged in high-quality ‘cycles’ ofcommunication, including interactions that involved orienting the group to the task, planninghow the work would be done, and evaluating the outcomes outperformed other groups

Conference Session

Mechanical Engineering Poster Session

Collection

2009 Annual Conference & Exposition

Authors

Enrique Barbieri, University of Houston; Raresh Pascali, University of Houston; Miguel Ramos, University of Houston; William Fitzgibbon, University of Houston

Tagged Divisions

Mechanical Engineering

years, and all the knowledge would be summarized and brought together in thesenior year, during a capstone experience. The essence of engineering is to design and buildsystems. Voland, in his book “Engineering by Design” describes engineering as “An innovativeand methodical application of scientific knowledge and technology to produce a device, systemor process, which is intended to satisfy human need(s)”. If one subscribes to the abovedefinition, then every engineer has to be somewhat knowledgeable of manufacturing methods, ofdrafting (drawing) standards and programming techniques. We are proposing that these topics becovered in freshmen/sophomore level courses.Manufacturing Methods CourseManufacturing in the US has been continuously shrinking

Conference Session

Statics and Dynamics: What's New

Collection

2009 Annual Conference & Exposition

Authors

Joseph Walchko, United States Military Academy

Tagged Divisions

Mechanical Engineering

, 2002.8. Das, B., Kassimali, A., Sami, S., “Engineering Mechanics: Dynamics,” Burr Ridge, Richard D. Irwin, Inc., 1994,p. 57. Page 14.908.9