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Comparing different teaching models in a first year computer aided design course

Comparing different teaching models in a first year computer...

2005 ASEE Annual Conference and Exposition: The Changing Landscape of engineering and Technology Education in a Global World

作者： Baxter, Douglas H. Mandigo, Andrew CAD/CAM/CAE United States Engineering Graphics and Computer Aided Design Course School of Engineering Rensselaer Polytechnic Institute United States CAD/CAM/CAE School of Engineering Rensselaer Polytechnic Institute United States

The comparison of different teaching models in a first year CAD course is presented. The course, engineering graphics and computer aided design (EG&CAD) teaches the skills of using a solid modeling system to create parts, small assemblies, and documentation. EG&CAD is taught with a series of twelve one hour lectures over a fourteen week semester. The new model of using assembly for the entire semester is proving successful. Moreover, quizzes will no longer be drawn from the final project instead, from other sources.

关键词： computer aided design

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Developing a prototype concurrent design tool for composite topside structures

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NAVAL ENGINEERS JOURNAL 1997年第3期109卷 279-290页

作者： Dirlik, S Hambric, S Azarm, S Marquardt, M Hellman, A Bartlett, S Castelli, V Steve Dirlik:began his career at the Naval Surface Warfare Center Carderock Division in 1981 as an aerospace engineer co-op student. He completed his bachelor of science degree in aeropace and ocean engineering from Virginia Polytechnic Institute and State University in 1985 and his master of science degree in aerospace engineering from the University of Maryland in 1990. Mr. Dirlik recently completed a master of science program in applied physics at The Johns Hopins University and currently works in the Radar Cross Section and Target Physics Branch of the Signatures Directorate at the Naval Surface Warfare Center Corderoke Division. He has worked on Navy low observable programs since 1990. Stephen Hambric:is a research associate at the Applied Research Laboratory at The Pennsylvania State University. He received his B. S. and M.S. degree in mechanical engineering from Virginia Polytechnic Institute and State University and his D. Sc. in mechnical engineering from the George Washington University. He has worked on several computer aided multidiscikplinary design and optimization projects over the years including an automated propeller design system and a structural acoustic optimization capability. Dr. Shpour Azarm:is currently working as an associate professor with the Design and Manufacturing Group of the Department of Mechanical Engineering at the University of maryland at College Park. Dr Azarm's expertise is in the areas of optimization-based designed and concurrent design and optimization of multidisciplinary systems. He was a consultant at Black & Decker Corporation (summer 1996) and worked as a Navy senior summer faculty fellow (summer 1995) and a NASA summer faculty fellow (summer 1994). He was a visiting scientist at NASA Langley Research Center for Multidisciplinary Analysis and Applied Structural Optimzatiom at the University of Siegen in Germany (spring 1992) and the Design Institute of the Technical University of Denmark (summer 1990). Dr Azarm was an associate technical editor of the ASME Jour

A prototype concurrent engineering tool has been developed for the preliminary design of composite topside structures for modern navy warships. This tool, named GELS for the Concurrent engineering of Layered Structures, provides designers with an immediate assessment of the impacts of their decisions on several disciplines which are important to the performance of a modern naval topside structure, including electromagnetic interference effects (EMI), radar cross section (RCS), structural integrity, cost, and weight. Preliminary analysis modules in each of these disciplines are integrated to operate from a common set of design variables and a common materials database. Performance in each discipline and an overall fitness function for the concept are then evaluated. A graphical user interface (GUI) is used to define requirements and to display the results from the technical analysis modules. Optimization techniques, including feasible sequential quadratic programming (FSQP) and exhaustive search are used to modify the design variables to satisfy all requirements simultaneously. The development of this tool, the technical modules, and their integration are discussed noting the decisions and compromises required to develop and integrate the modules into a prototype conceptual design tool.

关键词： Warships

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design for manufacture in the aerospace extended enterprise

World Class Design to Manufacture

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World Class design to Manufacture 1995年第2期2卷 28-33页

作者： Kamal Sehdev Ip‐Shing Fan Stephen Cooper Gareth Williams Research Officer at the CIM Institute. As well as his involvement in the EPSRC‐funded Design for Manufacture in the Extended Enterprise Project he lectures to the Master′s course on the application of AI and expert systems in business on data communications and on computer‐aided design and manufacture. He can be contacted at the CIM Institute Cranfield University Cranfield Bedford MK43 0AL UK. Tel: 01234 754073 Fax: 01234 750852. Lecturer and the Research Manager at the CIM Institute. He is the Principal Investigator of this Project. He also works in various European Commission funded research projects in design for manufacture and concurrent engineering. Research Assistant at the CIM Institute at Cranfield University and is working towards a PhD. He is the full‐time Research Associate on the Design for Manufacture in the Extended Enterprise Project. He is involved with many aspects of the project but is particularly involved in the area of design for manufacture/assembly tools and techniques. Manufacturing engineering research group at the BAe Cranfield Manufacturing Centre. He is a Research Associate on the Design for Manufacture in the Extended Enterprise project contributing aerospace manufacturing and business process expertise.

design for manufacture (DFM) is accepted as an important tool toimprove manufacturing competitiveness. Reports on the results of thefirst phase of a study conducted by Cranfield University to establishthe user require... 详细信息

关键词： Aerospace industry Co‐makership Europe Supply‐chain management

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Development of multimedia modules for education

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computer Applications in engineering Education 1995年第2期3卷 97-97页

作者： Iskander, M.F. Catten, J.C. Jameson, R. Jones, A. Balcells, A. CAEME Center College of Engineering University of Utah Salt Lake City Utah 84112 Dr. Iskander edited a book onMicrowave Processing of Materialspublished by the Materials Research Society in 1994 and authored a textbook onElectromagnetic Fields and Waves published by Prentice Hall 1992. He edited theCAEME Software Book Vol. I 1991 Vol. II 1994 and coedited two other books onMicrowave Processing of Materials both published by the Materials Research Society in 1991 and 1992. Dr. Iskander edited two special issues of theJournal of Microwave Power one on “Electromagnetics and Energy Applications” March 1983 and the other on “Electromagnetic Techniques in Medical Diagnosis and Imaging” September 1983. He also edited a special issue of theACES Journalon computer-aided electromagnetics education. He has published over 150 papers in technical journals and made numerous presentations in technical conferences. Dr. Iskander is the editor of the journalComputer Aplications in Engineering Education (CAE) published by John Wiley & Sons Inc. He is a fellow of IEEE and a member of the National Research Council Committee on Microwave Processing of Materials. His present fields of interest include the use of numerical techniques in electromagnetics. Rex M. Jameson:received his BS in Physics from Stanford University in 1992 and his ME in Electrical Engineering from the University of Utah in 1995. He currently works for the CAEME Center as a programmer. Antony K. Jones:has extensive experience with three-dimensional computer-rendered graphics on Macintosh Amiga and PC platforms. He has had years of commercial experience with the design and printing of computer-generated graphics. Albert R. Balcells:received a Telecommunication Engineering degree in 1994 from the Superior School of Telecommunication of Barcelona Polytechnic University of Catalunya (EC) and is currently pursuing a MS degree in Electrical Engineering from the University of Utah. He has experience in DOS and UNIX-based systems and is fluent in C C++

Development of multimedia modules and courses for engineering education present a significant opportunity to modernize curricula and improve the effectiveness of teaching and learning. In this article we review the various hardware and software components required to develop multimedia lessons and discuss the role of each component in the structure of a multimedia module. Examples of multimedia lessons developed for CD-ROM distribution by the Center for Multimedia Education and Technology (CAEME) at the University of Utah are described. These include multimedia lessons in electromagnetics, the Calculus Castle, and the Physics Museum. It is shown that although extensive resources and expertise are often needed to develop these modules, development software and associated technologies are readily available and educators are encouraged to take advantage of these opportunities to reform, restructure, and improve engineering education.

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CAD CAM MANUFACTURING OF PROTOTYPE SHIPBOARD COMPONENTS

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NAVAL ENGINEERS JOURNAL 1990年第3期102卷 93-99页

作者： CALVERT, TE RODRIGUEZ, FA SLEBZAK, JS Thomas E. Calvert P.E.: is a senior project engineer with the Propulsion and Auxiliary Systems Department David Taylor Research Center Annapolis Md. His interests include application of computers to all aspects of engineering with particular emphasis on utilization of small computers. Mr. Calvert is a licensed professional engineer in Maryland. He received a BSEE from Drexel University in 1969 and since that time has completed a number of graduate courses related to machinery acoustics. Francisco A. Rodriguez:is an engineer with the Propulsion and Auxiliary Systems Department David Taylor Research Center. He was formerly with the Computer-Aided Design/Interactive Graphics Group of the Division of Engineering and Weapons U.S. Naval Academy. His interests include interfacing the computer aided design to the computer aided manufacturing along with related software and hardware development. Mr. Rodriguez received a BSEEfrom the University of Virginia in 1968. James S. Slebzak:is a mechanical engineering technician with the Propulsion and Auxiliary Systems Department David Taylor Research Center. He received his machinists papers in 1971 after serving his apprenticeship at David Taylor Research Center. He continued his education and became the senior numerical control programmer at the Annapolis Laboratory. He completed his mechanical technology degree from Anne Arundel Community College in 1986. His interests are in the application of numerically controlled manufacturing techniques to prototype machinery components.

The machine shop at the Annapolis Laboratory of the David Taylor Research Center (DTRC) provides model making and prototype support to a large variety of naval ship related engineering projects. In order to meet these challenging requirements, computer aided design/computer aided manufacturing (CAD/CAM) techniques are being used to produce “one of a kind” prototypes or very low volume production parts. The use of computer aides in these cases is to facilitate the accurate manufacture of a difficult part, rather than to improve manufacturing efficiencies. In addition, the approach provides the flexibility required to support research and development projects. Several examples of prototype shipboard components manufactured using CAD/CAM techniques are presented in this paper. The hardware and software that facilitated these projects are discussed. The examples described have met the requirements to produce a wide variety of prototype shipboard machinery components quickly and accurately.

关键词： Ship Equipment

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ARCTIC TRAFFICABILITY PROGRAM - A REVIEW

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NAVAL ENGINEERS JOURNAL 1984年第3期96卷 169-175页

作者： VOELKER, R GLEN, IF SEIBOLD, F BAYLY, I Richard Voelker:is Vice President of ARCTEC Incorporated a firm specializing in cold regions technology. He has been responsible for the management of thePolarClass Traffic-ability Program since its inception and annually participates in the field data collection in the Arctic. His prior experience includes positions with the U.S. Coast Guard in the icebreaker design project the Military Sealift Command and at Newport News Shipbuilding. He is a graduate of N. Y.S. Maritime College and has a MS degree from the University of Michigan. I.F. Glen:received his professional degrees in naval architecture from the Royal Naval Engineering College Manadon Plymouth and RN College Greenwich London entering the Royal Corps of Naval Constructors in 1967. After serving as a Constructor Lieutenant in the Royal Navy's Far East Fleet for a short period he joined the Polaris submarine project team in Bath England in 1968. In 1971 he was seconded to the Canadian Department of National Defense in Ottawa as a Constructor Lieutenant Commander under NATO exchange arrangements where he had responsibilities initially for conventional submarines and latterly for computer aided conceptual design. He ventured to Bath England in 1974 and joined Forward Design Group. In 1975 he took a position as a civilian engineer in the Canadian Defense Department and was Head of Hull Systems Engineering from 1977 to 1979. He joined ARCTEC CANADA LIMITED in 1980 and in addition to managing ice model testing projects and full scale trials has specialized in structural response of ships to ice impact. He headed ARCTEC's Kanata Laboratory from 1981 to 1983 when he was promoted to president. Frederick Seibold:is a research program manager with the Maritime Administration's Office of Advanced Ship Development and Technology. He is responsible for the marine science program which includes research in the areas of ship powering structures and propeller performance and Arctic technology. Mr. Seibold has been employed by Mar Ad since 1961 having hel

This paper describes a multiyear program to make an operational assessment on the feasibility of a year-round Arctic marine transportation system to serve Alaska. Specifically, the three objectives were to: collect meteorological and ice data along potential marine routes; instrument the hull and propulsion machinery to improve design critera for ice-worthy ships; and demonstrate that ships can operate in midwinter Alaskan Arctic ice conditions. The U.S. Coast Guard's Polar class icebreakers were used to make the operational assessment by annually extending the route northward and by operating throughout the winter season. This paper reviews some of the operational and technical achievements to date, as well as plans for future Arctic deployments.

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INNOVATIONS IN computer-aided-design OF MARINE TURBINES USING INTERACTIVE graphics

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NAVAL ENGINEERS JOURNAL 1980年第2期92卷 207-217页

作者： GINGRICH, JK WINTER, RL Mr. John K. Gingrich joined the General Electric Company after his graduation from Lafayette College in 1948. His early assignments were with the General Engineering Laboratory and the Knolls Atomic Power Laboratory in Schenectady. N. Y. He joined the Marine Turbine and Gear Department in 1968 as Manager Engineering Administration. and assumed his present assignment as Manager Engineering Resource Planning & Administration in 1976. Mr. Gingrich was instrumental in procuring the Interactive Graphics System for the Medium Steam Department. having headed up the Study Team and is now responsible for the Interactive Graphics Systems management including new procurements. He is a member of the American Institute of Design Drafting and is currently the Chairman of the Computer-Aided Drafting Committee in that organization. Mr. Reinhold L. Winter is a graduate of the General Electric Apprentice Program and Salem State College from which he received his B.S. degree in Business Administration. He has nineteen years experience with the General Electric Company including eight years in Business Systems and Programming two years in Computer Operations Management and six years in his present position as Manager Engineering Business Systems. He was a member of the original Study Team that investigated and selected the present Applicon Interactive Graphics (IAG) equipment and currently is responsible for the management of software and hardware support for the ZAG Facility.

This paper discusses the Interactive graphics System used by the General Electric Company, Medium Steam Turbine Department (engineering & Manufacturing) for designing, drafting, and manufacturing applications. A brief overview of the hardware malting up the system is described, followed by a more detailed description of the actual applications. Two-dimensional applications described include a Heat Balance Analysis, Flow Diagrams, and Electrical Schematics. A more fruitful area for increased productivity gains is described in the three-dimensional or mechanical applications including turbine design & layout and bucket design. coordination of the design with manufacturing for numerical control tape generation is described through CAM and Plate Frame Cutting applications. Finally, a short review of the engineering design work using Interactive graphics is discussed. Productivity gains of 2.6 to 1 are being realized, and the overall savings to the Medium Steam Department are outlined.

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computer aided ship design and numerically controlled production of towing tank models 16

Computer aided ship design and numerically controlled produc...

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16th design Automation Conference, DAC 1979

作者： Rogers, David F. Francisco Rodriguez, M. Satterfield, Steven G. Division of Engineering and Weapons Computer Aided Design/Interactive Graphics Group U. S. Naval Academy AnnapolisMD21402 United States

A computer aided Ship design (CASD) and a computer aided Manufacturing (CAM) program are described. The objective of the program is to provide the capability to design and manufacture towing tank models using interactive CASD and CAM techniques. A three dimensional interactive graphics device supported by a minicomputer is used to drive the design portion of the system. A microprocessor based graphics system, simply and directly interfaced to a CNC controller on the shop floor, is used to perform the post processing and drive the milling machine. Experiences with actual use of the system and the benefits derived from this use are discussed for an actual production job. © 1979 Institute of Electrical and Electronics Engineers Inc. All rights reserved.

关键词： computer aided manufacturing

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computer aided Ship design and Numerically Controlled Production of Towing Tank Models 79

Computer Aided Ship Design and Numerically Controlled Produc...

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design Automation Conference

作者： D.F. Rogers F. Rodriguez S.G. Satterfield Computer Aided Design Interactive Graphics Division of Engineering and Weapons U.S. Naval Academy MD USA

A computer aided Ship design (CASD) and a computer aided Manufacturing (CAM) program are described. The objective of the program is to provide the capability to design and manufacture towing tank models using interactive CASD and CAM techniques. A three dimensional interactive graphics device supported by a mini-computer is used to drive the design portion of the system. A microprocessor based graphics system, simply and directly interfaced to a CNC controller on the shop floor, is used to perform the postprocessing and drive the milling machine. Experiences with actual use of the system and the benefits derived from this use are discussed for an actual production job.

关键词： Marine vehicles Production computer aided manufacturing CADCAM Virtual manufacturing computer graphics Microprocessors computer numerical control Control systems Metalworking machines

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A microprocessor display controller for combining refresh and storage tube graphics 78

A microprocessor display controller for combining refresh an...

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5th Annual Conference on computer graphics and Interactive Techniques, SIGGRAPH 1978

作者： Satterfield, Steven G. Rodriguez, Francisco Rogers, David F. Computer Aided Design and Interactive Graphics Group Division of Engineering and Weapons AnnapolisMD21402 United States

ISBN: (纸本)9781450379083

This paper describes a stand alone graphics system utilizing a microprocessor based display controller with the capability of combining refresh with storage tube graphics. This combination is accomplished by utilizing the Write-Thru feature of a Tektronix 4014 display terminal. The display controller is a typical Z-80 microprocessor system interfaced to the 4014 by a standard Tektronix parallel interface. A portion of the Z-80 memory is used as the display buffer, allowing it to be divided into store and non-store (refreshed) segments. The microprocessor performs the conversion from the simple integer X,Y coordinates in the display buffer to actual Tektronix drawing commands. A second Z-80 microprocessor is used to perform graphical transformations and transfer the data from the PDP-11 host to the Z-80 display controller. The operations performed by the second microprocessor include translation, rotation and scaling. These operations are implemented by matrix multiplication of the user data by a user specified transformation matrix. The stand alone capabilities of the graphics system is made complete with interactive devices such as a tablet, analog dials, and function switches interfaced directly to the host computer. © 1978 Association for Computing Machinery. All rights reserved.

关键词： Storage tubes

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