Collection

1997 Annual Conference

Authors

Kevin Wedeward; E. Eugene Mitchell; George E. Piper; John Watkins

Session 1620 COMPUTER ANIMATION: A VISUALIZATION TOOL FOR DYNAMIC SYSTEM SIMULATIONS John Watkins, George Piper, Kevin Wedeward, E. Eugene Mitchell Department of Weapons & Systems Engineering U.S. Naval Academy Annapolis, MD 21402-5025ABSTRACTThis paper describes how animation is being utilized to teach system dynamics and control in theSystems Engineering Department at the United States Naval Academy. Included is a descriptionof how animation has been incorporated into the classroom using the computer software toolsVisSim and MATLAB. The animation capabilities

Collection

1997 Annual Conference

Authors

Stanley N. Onggowijaya; Ing-Chang Jong

alternatives does an instructor have? This paper provides instructors of me-chanics with an alternative to accomplish the said desired task by presenting a computer programwritten in QuickBASIC, which is easy to program, very flexible, low overhead, and widely avail-able. The program is intended to complement available canned animation software in the teachingof kinematics. The paper provides an unabridged listing of the QuickBASIC program with helpfulremarks. A sequence of sample pictures on the computer screen is included to illustrate the ani-mation of the mechanism and the simultaneous plotting of the space centrode of the coupler. IntroductionSuppose that the crank AB of the four-bar linkage

Collection

1997 Annual Conference

Authors

Derek Morrison; Mohammad Zahraee; Gregory Neff

5GUUKQP Aircraft Landing Gear Simulation and Analysis1 Derek Morrison2, Gregory Neff 3 and Mohammad Zahraee4AbstractA computer aided graphical synthesis was undertaken to understand the kinematics of a nosewheel landing gear mechanism such as that on the Lockheed F-16 using Working Modelsoftware. The mobility of the design was verified by computer animation.To contrast the nose gear kinematic simulation, the main landing gear located under the wing of alight weight aircraft such as the Berkut (Ber-koot) was also studied. The Berkut is the product ofExperimental Aviation, Inc. (E.A.I

Collection

1997 Annual Conference

Authors

James A. Reising

activities, and the grade from the project advisor, which is determined from the writtenwork submitted to the project advisor.The present structure of this course has evolved over the fifteen or so years that I have taught it.The practice presentations were added several years ago as a result of suggestions from studentsin the course. EE 497 Senior Project Phase IIDuring the final semester of the senior project sequence the final design, construction, and testingof the project is completed. Validation by simulation or analysis using generally accepted theoryis an appropriate alternative to construction and testing for some of the projects. Students areasked to submit a final written report as well as an oral

Collection

1997 Annual Conference

Authors

Barbara Blake Bath

team I have ever worked on. There were no slackers and everyone gave 120% effort. x Having the instructor available at all times helped.Two sample project descriptions submitted: Computational Modeling for Electromagnetic Scattering from Rough Surfaces This project is concerned with the application of wavelet decomposition methods to analyzeintegral equations which arise in electromagnetic scattering. The specific application is to thescattering from rough surfaces, and in particular, from very rough surfaces. The waveletapplication is not the conventional one. Limited research results which treat the application ofwavelets to integral equations have been confined to the spatial domain. Here wavelets workwell for smooth

Collection

1997 Annual Conference

Authors

Dana L. Wake; Craig J. Scott

in groups, they were asked to simulate andcreate animations to illustrate various important performance characteristics. In mostcases the physical characteristics are plotted as a function of applied bias. The simulationscould have been implemented by the instructor. However, this would result in a passivelearning mode experience. When the students are actively engaged in the technology as agroup, (both device and computer related) they can learn more from each other andappreciate the dynamics of group participation. The GaAs MESFET Example In this exercise the students were charged with developing 2-D illustrations of thepotential, electric field, charge carrier, and how this information relates to pinch

Collection

1997 Annual Conference

Authors

Ratan Kumar

simulation.They are presented by text, graphics, animations and audio. The simulation software gives userthe power to dynamically manipulate the physical system and explore the engineering concepts.Figure 2 shows the simulation screen for problem three as shown in Figure 1. . 2The simulations used for coursework purpose were developed in Working Model from TheKnowledge Revolution. It is a motion simulation package that allows one to quickly build andanalyze dynamic mechanical systems on desktop computers. Most of the exmples that wereshown by this simulation package were pre-built. This not only saved time but buildin

Collection

1997 Annual Conference

Authors

Leslie Bondaryk

Session 3264 Implementing New Media in Materials Science Education Leslie Bondaryk PWS Publishing Company -897,.9 New media offers a chance for the Materials Science instructor to rethink course structure and content. New media is just an addition to the variety of tools available to the Materials educator. I will give some examples of hypertext, video and animation, and simulations that are successfully being used to address educational goals. Through wise

Collection

1997 Annual Conference

Authors

D. Raj Raman

assignments and exams toreinforce skills and test comprehension. The greatest weakness of this technique seemed the lackof hands-on experience which I gave my students, and their subsequent lack of physical intuition.Enhancing their physical intuition drove the first curricular revision using in-classdemonstrations and simulations of key physical and biological processes. This technique did notwork as well as expected, probably because it continued to rely on a source - sink model oflearning, with myself as the fount of knowledge. Therefore, increasing student involvement andfostering student maturity drove the second revision, consisting of the inclusion of two teamdesign experiences, and the addition of more student-led problem solving during

Collection

1997 Annual Conference

Authors

William Messner; Dawn M. Tilbury

relevant places throughout the tutorials. An attempt ismade to take maximum advantage here of the ease of interconnection using the hypertextmarkup language. For example, there is an extra on lead/lag compensators. Whenever weuse a lead or a lag in an example, there is simply a link to the appropriate subheading in thelead/lag extra (i.e. “designing a lag compensator using frequency response”). The steady-state error extra is another popular one; instead of reviewing how to compute the steady-stateerror in every example, a link is given to this extra. Other extras include plotting, convertingbetween system representations, the step response and simulation, pole/zero cancellation,notch filters, functions, and m-files.3.4 Implementation Details

Collection

1997 Annual Conference

Authors

Tamie Veith; John E. Kobza; Mario G. Beruvides; C. Patrick Koelling

T1 (Mb) 9.6 14.4 28.8 64 or 128 1500 I (0.25) 294 210 102 12 2 II (1.699) 1998 1416 678 60 17 III (0.858) 1008 714 342 42 9 IV (3.366) 3960 2808 1344 120 35 V (2.466) 2904 2052 984 120 25 Table 2: Actual Time (in Secs.) to Load Sections from the Projector. Computer

Collection

1997 Annual Conference

Authors

Doris Yacoub; Robert Pfeffer; Rajesh N. Dave; Jonathan Luke; Ian S. Fischer; Anthony D. Rosato

offered by Dr.Dave. The original objective of the course was to include classical experiments, research relatedexperiments, and also computer simulated experiments (utilizing various available computersimulation codes and animation techniques). However, the trial course only included a selectednumber of classical experiments and research related experiments. The course development isongoing, and the next offering of the course is planned in Spring 1997. It is anticipated that thelaboratory development will be completed by that time and the course will also include simulatedexperiments. In the following sub-sections, several experiments are described.* These courses, offered as special topics, are in addition to the three courses proposed under

Collection

1997 Annual Conference

Authors

Charles H. Dowding; Joseph J. Biernacki

ReportsStudent presentations, on the average, were 30 minutes long and included five to tenminutes for questions and discussion. Many of the students embraced the opportunity touse multimedia in their presentations. One student presented the results of amathematical simulation in the form of a computer generated animation. The entireMicrobial Team coordinated their three presentations with Microsoft PowerPointpresentation software. The content of presentations was technical. Students demonstratedrigor in their analysis and competency with the subject matter. Use of multimedia andthe overall impressive quality of the presentations is generally attributed to the success ofthe skills seminars as well as faculty and graduate student advising in this area