Session 2525 Analysis of the Trinity College Walk-on-Water Project: a Case Study of Team Learning in the Design Experience Robert A. Peattie Ph.D., Andrew A. Robinson and Andrew E. Malick B.A. Department of Engineering, Trinity College, Hartford CT 06106Abstract: Although a substantial history exists regarding the use of team projects asinstructional activities in engineering design curricula, only limited attention has been given toproject subjects that span multiple areas of engineering, including biomedical, civil, electricaland mechanical. The conceptualization of such topics, and their integration into the
Session #261A Shortage of Technology Job Candidates and an Abundance of Women in the Workplace: Why the Dilemma? Beverly Davis Purdue UniversityAbstract Despite the feeling that women’s entrance into the workplace has been for the better, the economic statusof women in the workplace remains lower than that of men (13). Recent evidence shows that the gendergap in earnings is increasing after a period of decline (13). This gap is partly due to workers in female-dominated occupations being paid lower average wages than workers in
Session 1449 Integration of Third Party Design Software in a Civil Engineering Design and Graphics Class in Construction Engineering Technology Nicholas V. Kissoff University of ToledoAbstract The current trend of state departments of transportation is to require the utilization ofthird party design software in the production of design drawings for state funded highwayprojects. This has led to the need to introduce the use of this type of software in design classes inConstruction and Civil Technology programs. The
Session #1526 NUTS AND VOLTS: A WEB-BASED HANDS-ON ELECTRICAL AND ELECTRONICS REMOTE WIRING AND MEASUREMENT LABORATORY (RwmLAB) Johnson A. Asumadu, Ralph Tanner, Jon Fitzmaurice, Michael Kelly, Hakeem Ogunleye, Jake Belter, and Song Chin Electrical and Computer Engineering Department 3045 Kohrman Hall Western Michigan University Kalamazoo, MI 49008 TEL: (616) 387-9201 (616) 387-6489 FAX: (616) 387-4096 asumadu@wmich.edu
A New Course on ‘Welding Engineering and Design of Welded Structures’ to Better Train Engineering Graduates for The Future Sanjeev K. Khanna Department of Mechanical and Aerospace Engineering University of Missouri - Columbia Columbia, MO 65211, USAINTRODUCTIONWelding is one of the more common methods of joining to create useful structures. It iscommonly used in ground, marine and air transportation equipment, bridges, pressure vessels,machines, etc. Welding is a complex process and one of the most essential processes for theeconomy of any nation. It is one of those processes which enables industries to be set up,agriculture
Session 2793A Comparative Analysis of Student Performance in Lower Division Computer Science Courses in Face-to-Face Mode vs. Distance Learning Mode Vladimir Briller and John D. Carpinelli New Jersey Institute of TechnologyAbstractComputer engineering and computer science students at the New Jersey Institute of Technology(NJIT) take a two-course sequence on the fundamentals of computer science as parts of theirplans of study. The two courses, CIS 113 and CIS 114, cover topics in computer system basics,algorithm design, data abstraction, programming languages, data structures, and
postulates and theorems to perform Boolean reduction and solve Boolean expressions.II. Discussion The Boolean AND ( a ib ), OR ( a + b ), INVERT ( a ), logical false (0), and logical true(1), correspond directly to the set theory intersection ( a ∩ b ), union ( a ∪ b ), inversion ( a ),empty set ( φ ), and universal set ( U ). This allows for quick and simple reduction of Booleanexpressions containing complex operations that can be easily grasped by students. Manycomplex switching function problems can be solved faster and easier using set operations ratherthan classical Boolean algebraic methods.Consider the pair of Boolean switching functions f1 (a, b, c) = Σm(0,1, 2, 7)and
Test MTH 302 grade Transferredthe third test are shown in Table 2. The first column score (diff. eqns.) creditshows the test scores out of 10. Typically students 10% C+ Yreceiving less than 6/10 were unable to successfully 20% C Ycomplete the homogeneous solution. A student that 20% 20% B C
visualize the motion of thesecycloidal mechanisms. The simulation files are hyperlinked with text files containingbackground information and cycloidal equations.Cycloids, Trochoids, and SpirographCycloid is a curve traced by any point rigidly attached to a circle of radius a, at distance bfrom the center, when this circle rolls on a straight line. The equation is: Page 7.875.1 x = aθ − b sin θ (1) y = a − b cos θwhere θ defines the angle of the moving radius. The curve is called prolate or curtate if b< a or b > a, as in Figure 1 and 2 respectively
will be used in constructing the influence lines for anymulti-span beam.ExamplesExample # 1:Draw the influence line for the vertical reaction at B, R B, for the beam shown in figure E1.1.The beam is statically indeterminate to the first degree, choose as a redundant the verticalreaction at B, R B = X 1. y1 1.0 y2 x1 x2 D A B C a X1 b
simulation.Three-phase analysis of an statorThree phase induction machines are the work- horse of industry, and these machines have a “rotatingmagnetic field”. We will give a brief physical description of the stator of these machines. Consider asequence a-b-c and a symmetric distribution of the phases by 1200 electrical degrees each in space andaround the air gap. The basic three-phase machine will have three coils that we consider to have thefollowing terminals: a a’ b b’ c c’These coils are excited by a time dependent sinusoidal alternating current producing a sinusoidalmagneto- motive force (mmf) wave at the center of the magnetic axis of particular phase. Therefore thethree-space sinusoidal
conveyto our students in the area of energy conversion. These fields are transformed into phasors (vectors) thatrotate in space around the stator of an electrical machine. The mathematical proof of such rotation willbe shown and a MATLAB simulation describing these vectors will be given. Classic textbooks approachthis concept mathematically and usually the students are left to imagine the space vector rotation. This isno longer the case, now we can simulate and SEE in our desktop computers, using MatlabT M, rotatingphasors.Polyphase AnalysisThree phase induction machines are the work- horse of industry, and these machines have a “rotatingmagnetic field”. We will give a brief physical description; consider a sequence a-b-c and a
outlining the method of solution for an example problem. The solution is based on the application of the method of joints and the method of sections. Theapplication of both methods requires solving a system of linear equations. p H q G r b d F b c b A B C D E a a
© 2002, American Society for Engineering EducationThe connection between the two carts is modeled using a spring with a spring constant, K. Thefriction is assumed to be a constant, B. M 1 and M 2 represent the mass of Cart 1 and Cart 2respectively. Students are first asked to derive the differential equations that model this system: 2 2 M1d y1/dt = f(t) – K(y1 – y2) – Bdy1/dt 2 2 M2d y2/dt = K(y1 – y2) – Bdy2/dtThe next step is to derive the state model by defining the states to be the position and velocity ofeach of the carts. Defining the states as physical system variables as opposed to the states of thecontrollability model
w B) Simply Supported Beam with Distributed Load w C) Overhung Beam with Distributed Load Figure 1: Three mechanics problems involving beams utilized for optimization learningDetail Optimization Example Using a Simply Supported Beam with Central Load:This simple, straight-forward, and standard mechanics problem provides students anunderstanding of optimization in both analysis and design modes. The sketch of the loaded beamdepicted in Figure 1A is analyzed using mechanics principles. This analysis, utilizing free-body,instantaneous load, distributed load, and moment diagrams is shown in Figure
. Page 7.785.2“Proceedings of the 2002 American Society for Engineering Education Annual Conference & Exposition Copyrightã 2002, American Society for Engineering Education.Casting- the components are produced by green sand casting, and cast in aluminum. An exampleof the finished mold after pouring is shown in Figure 4. a) b) c) d)Figure 2. Solidworks models. a) Detail of bevel gear, b) Mounting pins integrated with blank, c) Isometric view of the gear, d) Gates and runners. Figure 3. a. Gears. b. Gates and runners. Figure 4. Castings after pouring
b. Current students (undecided/undeclared) i. Local school recruiting event (use HS student postcards) c. High School i. Poster ii. Video iii. Information session postcards (guidance counselors) iv. Sign up postcards (students) v. Follow up postcards (students/parents) vi. Letter (event confirmation) with posters and sign up sheets 4. Advertising a. Outdoor i. 1 design, 3 formats: 30-sheet, bulletin, king bus sign b. Newspaper i. 4 designs: 2 for parents, 2 for adults ii. 3 sizes: full-page, 4-column x 15”, 3 column x 10-1/2” iii
. Page 7.1182.4 Proceedings of the 2002 American Society for Engineering Education Annual Conference & Exposition Copyright © 2002, American Society for Engineering EducationI. Dynamic-Equilibrium Equations of Motion Figure 2a 3000 åF x = 0: − 0.8 N A − 0.8 N B − 32.2 a=0 åF y = 0: N A + N B − 3000 = 0 3000
) b)Figure 2. a) SolidWorks model of the experimental apparatus,b) photograph of the final setup.special carriage mounted on the lathe. The axial shaft was constructed by turning down asolid brass block on the lathe. The support bearing blocks were made from aluminum thatwas machined on a milling machine. After the bearing blocks were made, the rollerbearings were pressed into their final position. The bearing blocks and the tube assemblywere then mounted on an aluminum frame.The aluminum frame consists of two pieces of aluminum plate. The plate was cut using aband saw. Holes were drilled in proper positions for the mounting brackets and motormounts. Vertical stabilizer steel rods were also mounted on the sides of the frame.Experimental
frequency are tied to the network. R1/a jX1 R2/a jX2 IL I1 I2 jXL rc/a γ R2/a -jXc/a2 jXm Mechanical Input power [note: γ = b/(a-b)] RL/a Load
consistently used the ceiling projector to present information? Question 2 22 responding a If your answer for the first question is YES, how often? 27 responding b a. One course b. Two or more courses Question 3 13 responding a 4 responding a Do you believe that using the projector to present information is 30 responding b 15 responding b more effective than traditional presentation using a blackboard or 6 responding c 3 responding c whiteboard? a. Definitely b. Somewhat 3 not responding c. Definitely
results available elsewhere [1].Investment ProcessSuppose that the mutually exclusive investments shown in Table 1 are Table 1. Cash Flowsunder consideration by a firm having $100 of investment capital attime 0. The objective is to chose the alternative that maximizes the Time A B Nullcapital at the end of the planning horizon, time 3, the firm’s FTW. 0 -10 -9 0 Alternative A initially requires $10, leaving $90 available for 1 7 3 0other investments, as shown in Table 2. Similarly, alternative B al- 2 5 4 0lows $91 for other investments, and the null alternative results in all 3 0 5 0
easily check the limit of motion and interference.III. Design of ProblemsIn general, the problems used in the course of Advanced Computer-Aided Design include thefollowing four different categories: A. To identify the motion of a machine with some of its major joints/constraints specified. B. To find all the required joints/constraints for a machine with its motion defined. C. To identify the replacement of a mechanism that would generate the same motion. D. To find the input motion required to create a specific output motion.Figure 1 depicts an example in category A. A welding robot is modeled with the followingspecifications: a rotational body to provide the circular motion and two hydraulic cylinders toprovide the planar
10, the LED shows red. Bit 3 of Port A isthe frame (“vertical”) sync signal for the CRT display, and normally generates a 60 Hzsignal under the control of Output Compare 5 in the timing system. This is described inmore detail in the “CRT Display” section below. Bits 2 and 1 of Port A are not connected,but bit 0 is brought out to the expansion connector so that user circuits can make use of theInput Capture feature of the MC68HC11’s timing system.Port BPort B is the simplest of the five ports in the MC68HC11, serving only as a general purpose8-bit output port in the configuration used in the lab. In this lab station, Port B drives therows of a multiplexed matrix alphanumeric keyboard, and also drives the cathodes of an 8-digit 7-segment
. Page 7.231.22. Modification of the manner in which a video sequence is encoded by the following:“Proceedings of the 2002 American Society for Engineering Education Annual Conference & Exposition Copyright 2002, American Society for Engineering Education” a. Using quantization tables that would be used ideally in such a way as to directly alter the data rate of the encoded video so as to relate it to the varying load applied to the Internet at any given time, b. Integrating error detection and concealment into the software decoder. The educational components of the project included the following:1. Creativity2. Team work3. Critical thinking and brain storming4. Oral
several different models to study, just one will bedemonstrated here. This example will consist of a rear wheel driven car which has a cordor ribbon directly wrapped around the rear axle and pulled by the arm connected to thespring. The simplified drawing of this model of this is shown in figure 1. D q d L rear front B Page 7.870.2 Figure 1 “Proceedings of the 2002 American Society for Engineering Education Annual
Copyright ã 2002, American Society for Engineering Education"III. DTMF EncoderFor the encoder, LabVIEW is used to generate the DTMF waveform. The hardware required for theDTMF encoder is a keypad connected to two digital ports on the DAQ card. One digital port isconfigured as an output port and connected to pins A,B,F,G. The second digital port is configuredas an input port and connected to pins M,H,E. The PC DAQ card is a National Instruments Lab-PC-1200 DAQ card which can process analog signals with a maximum input sample rate of 100ksamples/sec and a typical maximum output update rate of 1k samples/sec. 6In order to generate the DTMF waveform, a software algorithm is required. There are two sectionsfor the software algorithm for the DTMF
into 3 stages: A (semesters 1-4), B (semesters 5-6), and C(semesters 7-8). At the very beginning of the undergraduate studies, the students must choosebetween the so-called macro-field of study Computer Engineering, Electronics andTelecommunications, Automatic Control and Robotics and the field of study Computer Science.After the first year of study, the students of the macro-field have to choose again: Electronics,Computer Engineering and Biomedical Engineering or Telecommunications. At the end of stageA – after two years of studies in mathematics, electronics and computer fundamentals – they haveto select one of 7 areas of concentration: Biomedical Engineering, Electronics and ComputerEngineering, Telecommunication Systems and Networks
sizes. It wasjust designing the mechanism so parts don’t intersect. The mechanisms part was well coveredalthough I would have liked to see more I-DEAS® demonstration on how to provide output plotsfor the gears.”b. How did you like the selection of the final project that integrates the use of cams/gears and linkage mechanisms? Did we achieve integration of subjects lectured and final project?“It was difficult to find a project that included cams, gears and four-bar links.”“The project selection process was very independent. A list of possible topics could be gatheredand presented to all students.”“The project encompasses all the aspects covered in the class. The only issue is the amount ofwork required in the short period of time
MENTORSHIP IN ENGINEERINGGeneral_____ 1. Your gender? A)male B)female_____ 2. Your race/ethnicity? A)Caucasian, B)African-American, C)American Indian, D)Hispanic, E)other_____ 3. Are you physically challenged? A)yes B)no_____ 4. Did you attend the ‘95, ‘97' or th ‘99 NSF-sponsored workshop on diversity of engineering educators? A) Yes B)No_____ 5. If YES to above question, how did you hear about the NSF Workshop? A)Dean, B)Chair, C)other faculty, D)organization (SWE, NSBE, etc.), E)other____ 6. How many faculty are presently in your dept.? A)<10 B)10-20 C)20-30 D)>30_____ 7. How many faculty in your dept. are women/minority/physically challenged?A)0 B)1-2 C)3-4 D)>4Engineering