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An advanced manufacturing workshop for high-school teachers and students

An advanced manufacturing workshop for high-school teachers ...

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

作者： Sparks, Todd Kadekar, Vinay Richards, Gall Liou, Frank Allada, Venkat Leu, Ming Anam, Faisal Shinde, Siddharth Agrawal, Ashok Gerstenecker, Dale University of Missouri Rolla United States St. Louis Community College Florissant Valley United States UMR's Interdisciplinery Manufacturing Engieneering Program United States UMR France Engineering Management Department UMR France NSF Halliburton Foundation Funded Sustainable Design Laboratory UMR France Department of Mechanical Engineering UMR France Engineering and Technology Department St. Louis Community College United States

Presented in this paper is an analysis of the experience of teaching advanced manufacturing technology to groups of teachers at a workshop sponsored by NSF during the summer of 2004 at the University of Missouri-Rolla. The purpose of the workshop was to expose teachers to manufacturing technology in the hope of impacting the career choices of their students. Some high school students also participated in the workshop. The material presented in the workshop included CAD modeling, rapid prototyping, and lean manufacturing. Some industrial representatives came to the workshop to interact with the teachers and students on the prospectives of advanced manufacturing technologies. The participants also toured manufacturing research laboratories on campus and two local manufacturing facilities. This paper details the experiences of both the participants and facilitators of the workshop.

关键词： Technical presentations

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Incorporating design into introductory statics and strength of materials courses

Incorporating design into introductory statics and strength ...

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2002 ASEE Annual Conference and Exposition: Vive L'ingenieur

作者： Palmer, Mark A. Sandgren, Eric Heinz, Robert A. Kettering University Virginia Commonwealth University J. Sargeant Reynolds Comm. College Dept. of Manufacturing Engineering Kettering University Mechanical Engineering Program Virginia Commonwealth University Dept. of Engineering and Technology J. Sargeant Reynolds Comm. College

The design of rigid permanent structures, statics, is the most basic of engineering concepts. We believe it is also the place to introduce first year students to design and the broader issues of engineering, and by doing so excite students in all engineering disciplines. We have developed an introductory engineering course based on statics. This course begins by introducing the students to the fundamental physics of statics equilibrium and culminates with the students being able to design a simple structure. To make this course successful we adopted the philosophy "Involve me and I'll not only learn but understand and remember". Such involvement requires emphasizing oral, written, and visual communication. In the beginning of the course, the physical laws are demonstrated by self directed laboratories. During the middle of the course, students optimize a truss using a spreadsheet. The course culminates with a project where the students using a special form of the Tresca Criterion can select a material and its dimensions for a design. This also means they can be introduced to the business consequences of their decision. In this paper we will discuss the evolution of this course during the last three years, the innovative course content, the innovative teaching techniques employed, the dynamics among the instructors, and how we applied what was learned in the Strength of Materials course.

关键词： engineering education

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Lifelong learning for innovation and leadership in engineering

Lifelong learning for innovation and leadership in engineeri...

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2002 ASEE Annual Conference and Exposition: Vive L'ingenieur

作者： Keating, Donald A. Stanford, Thomas G. Dunlap, Duane D. Bennett, Ronald J. Mendelson, Mel I. Sebastian, Donald H. Tricamo, Steven J. University of South Carolina Western Carolina University St. Thomas University Loyola Marymount University New Jersey Institute of Technology Department of Mechanical Engineering University of South Carolina Department of Chemical Engineering University of South Carolina Department of Engineering Technology Western Carolina University Grad. Eng. Technol. Mgmt. Programs Dept. Undergrad. Eng. at St. Thomas Department of Mechanical Engineering Eng. Prod. Mgmt. Graduate Program LMU Los Angeles CA Department of Industrial Engineering New Jersey Institute of Technology Dept. of Manufacturing Engineering New Jersy Institute of Technology

In many ways graduate engineering education has served the U.S. well. But there is now broad recognition that it must change substantially to meet new challenges of the 21st Century. A noticeable decline in the number of domestic graduate students pursuing engineering has occurred and just under half of those who are pursuing the doctorate are foreign nationals. But the drop in Americans engaging in graduate studies in engineering is also being perceived by industry and by a growing proportion of graduate schools as a reflection of a lack of opportunity for lifelong learning and of an insufficiency of U.S. graduate education to serve the full professional spectrum of engineering. This deficiency is affecting U.S. competitiveness and the nation's long-term capacity for innovation. The ASEE-Graduate Studies Division has established a National Collaborative to address the compelling issues for needed reform to improve more relevant engineering graduate education for the engineering workforce in industry as a complement to research-based graduate education. This paper describes the conceptual basis and impact of this reform and a call-for-action is submitted to promote this activity to improve U.S. competitiveness.

关键词： engineering education

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A product focussed manufacturing curriculum

A product focussed manufacturing curriculum

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2002 ASEE Annual Conference and Exposition: Vive L'ingenieur

作者： Liou, Frank Allada, Venkat Leu, Ming Mishra, Rajiv Okafor, Anthony Agrawal, Ashok University of Missouri Rolla St. Louis Comm. Coll. - Fl. V. Mfg. Engineering Education Program UMR Eng. and Technology Department St. Louis Community College NSF Halliburton Found. Funded S.M.D. UMR Intgd. Prod. Devmt. and Mfg. Department of Mechanical Engineering UMR Metallurgical Engineering Department UMR School of Mines and Metallurgy Mfg. Eng. Educ. Executive Committee UMR Intelligent Systems Center Materials Research Center UMR Dept. of Mechanical Engineering UMR BSME-Manufacturing Option Program Dept. of Mechanical Engineering UMR Intelligent Systems Center UMR

An innovative product-oriented manufacturing curriculum is discussed. It enhance manufacturing degree programs at the University of Missouri-Rolla (UMR) and St. Louis Community College at Florissant Valley (FV). The project will impact UMR's two BS degree option programs in manufacturing and MS degree programs in manufacturing and FV's manufacturing engineering and technology programs. An integrative and collaborative manufacturing program is established to reinforce and sharpen critical competencies of students. The project course will provide students with the experience of integrating the technical knowledge they have learned from various other courses.

关键词： Curricula

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SIMULATION OF ASSEMBLY AND OPERATION OF PRE-STRESSED, HEAT-SHRINKABLE STRUCTURAL COMPOSITE CONNECTORS

SIMULATION OF ASSEMBLY AND OPERATION OF PRE-STRESSED, HEAT-S...

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ASME 1999 International mechanical engineering Congress and Exposition, IMECE 1999

作者： Gibson, Ronald F. Baxi, Jvalit K. Stoll, Frederick Bettinger, David Johnson, Vincent Advanced Composites Research Laboratory Mechanical Engineering Department Wayne State University DetroitMI United States University of Dayton Research Institute DaytonOH United States The Technology Partnership Grosse lle MI United States Manufacturing Technology Program Wright-Patterson AFB OH United States

ISBN: (纸本)9780791816370

This paper describes the finite element numerical simulation of the mechanical behavior of a pre-stressed, heat-shrinkable, fiber reinforced polymer composite cormector during assembly and operation. A multi-step finite element analysis has been developed to simulate the stresses and deformations developed due to prestressing and heat-shrinking during assembly. Then the viscoelastic creep during storage of the cormector was modeled and compared with measured creep in order to estimate the practical storage life of the cormector. Finally, the mechanical behavior of the joint during operation was simulated by the use of four point bending tests, and again the predictions from the multi-step finite element analysis were compared with measurements. © 1999 American Society of mechanical Engineers (ASME). All rights reserved.

关键词： Finite element method

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Development of automated dedicated fixture configuration design systems with predefined fixture component types: basic design

International Journal of Flexible Automation and Integrated ...

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International Journal of Flexible Automation and Integrated manufacturing 1999年第3期7卷 321-341页

作者： An, Z. Huang, S. Rong, Y. Jayaram, S. Manufacturing Engineering Program Department of Mechanical Engineering Worcester Polytechnic Institute Worcester MA 01609-2280 United States Manufacturing and Logistics Technology Technical Center Caterpillar Inc. Peoria IL 61656-1875 United States

Because dedicated fixtures are commonly used in mass production, in this research, a technique of automated dedicated fixture configuration design is studied with predefined fixture component types. The design methodology is divided into two stages: basic design and detail design. The basic design activities include 1) selection of functional fixture components such as locators and clamps from a standard fixture component database, 2) generation of customized supports with variable dimensions for different fixture design requirements, and 3) assembly of fixture components into a final configuration on a fixture base. In order to implement the fixture design procedure, models are developed to represent the standard fixture components and customized supports. The assembly relationships among fixture components are established based on a compatibility analysis. The detail design includes fixture unit combination, connection design, interference avoidance modification, and technological-rule-based modification. In this paper, the principles and implementation of basic design are presented, while the detail design will be addressed in a separate paper.

关键词： Fixtures (tooling)

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Simulation of assembly and operation of pre-stressed, heat-shrinkable structural composite connectors

American Society of Mechanical Engineers, Noise Control and ...

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American Society of mechanical Engineers, Noise Control and Acoustics Division (Publication) NCA 1999年 26卷 319-332页

作者： Gibson, Ronald F. Baxi, Jvalit K. Bettinger, David Stoll, Frederick Johnson, Vincent Adv. Composites Research Laboratory Mechanical Engineering Department Wayne State University Detroit MI United States Technology Partnership Grosse lle MI United States Univ. of Dayton Research Institute Dayton OH United States Manufacturing Technology Program Wright-Patterson AFB OH United States

ISBN: (纸本)0791816370

This paper describes the finite element numerical simulation of the mechanical behavior of a pre-stressed, heat-shrinkable, fiber reinforced polymer composite connector during assembly and operation. A multi-step finite element analysis has been developed to simulate the stresses and deformations developed due to prestressing and heat-shrinking during assembly. Then the viscoelastic creep during storage of the connector was modeled and compared with measured creep in order to estimate the practical storage life of the connector. Finally, the mechanical behavior of the joint during operation was simulated by the use of four point bending tests, and again the predictions from the multi-step finite element analysis were compared with measurements.

关键词： Pipe joints

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Arsenal ship program certification plan

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NAVAL ENGINEERS JOURNAL 1998年第1期110卷 249-261页

作者： Arntson, S Lind, W Turner, JJ Blaiklock, WC Tedesco, M Stephen G. Arntson is an independent consultant. A degree Naval Architect he has over 38 years of experience in the design construction and maintenance of surface ships. His experience includes 28 yeus with the Naval Sea Systems Command Naval Ship Engineering Centerl Bureau of Ships specializing in the structural design of Naval surface ships and 7 years with ABS Specializing in the application of commercial ship design practices. Most recently he worked with both NASSCO and ABS MZ the Arsenal Ship Program. Steve was very active with the Ships Structure Committee in developing R&D programs for ship structure and he is a member of the ASNE Journal Committee. Steve received a BS in Mechanical Engineering (Naval Architecture Option) from Virginia Polytechnic Institute in 1964. He is a member of the ASNE TAU BETA PI PI TAU SIGMA and PHI KAPPA PHI. William 1. Lind joined ABS in 1992 after ten years with Sparkman and Stephens Inc. He is currently ABS Amekas Manager of Engineering jm New Orleans and Cleveland. Both ofices conduct plan reviews for militavy commercial and private marine craft fm self-propelled vessels under 300 feet in length and bargus unlimited in length. As Vice-Chaimn ojthe Western Rivers Technical Committee Great Lakes Technical Committee and the Small Vessel Committee Bill participated in the writing of the 1997 ABS Guide for Building and Classing High Speed Craft and the 1997 ABS Rules for Building and Classing Steel Vessels Under 9OM. Bill received an MBA from Florida Atlantic University in 1995 a BS in Mechanical Engineering from New York Institute of Technology in 1986 and a BA in Histoy from Colgate University in 1976. He is Chaimn of SNAME HS-9 Composite Panel Testing & Fire Protection and a member of ASNE. John J. Turner is Senior Vice President of SYNTEK Technologies Inc. in Arlington Virginia. SYNTEK specializes in activities of a highly technical nature supporting both industry and government in domestic and international markets. He is a registered Professional Engineer

The Defense Advanced Research Project Agency (DARPA), in conjunction with the U.S. Navy, initiated a research program for the design and construction of a distinctive warship for the 21st century known as the Arsenal Ship. By using an innovative development and acquisition approach it was hoped to streamline the procurement process and reduce costs. In an environment where budgets are being cut, both industry and Government were challenged to develop, design, and produce the innovative ship and related mission systems to meet specific performance capabilities within strict affordability constraints. A key element of this innovative acquisition approach was a new certification scheme designed to replace the traditional test and evaluation (T&E) and acceptance process. The purpose of this paper is to describe the development of the certification plan during Phase LI of the Arsenal Ship program by the American Bureau of Shipping and the contending Shipyard teams, and to discuss the potential benefits of this alternative certification approach. Although the Arsenal Ship program was canceled late in 1997, insight derived from the exploration of new certification concepts could benefit future design and building programs.

关键词： Warships

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FORMATION AND BREAKING OF SIDE-CURL DOMINATED SHORT-SPIRAL CHIPS

FORMATION AND BREAKING OF SIDE-CURL DOMINATED SHORT-SPIRAL C...

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ASME 1997 International mechanical engineering Congress and Exposition, IMECE 1997 - manufacturing Science and engineering

作者： Li, Zhenjia Qu, Guimin Xu, Yihong Rong, Yiming Department of Mechanical Engineering Harbin University of Science and Technology' China Manufacturing Systems Program Southern Illinois University Carbondale United States

ISBN: (纸本)9780791826799

In this paper, the formation of side-curl dominated chips IS first discussed, as well as the side-curl radius. The chip width and thickness in 3-D side-surl is studied for the side-curl radius prediction. The formation and and breaking of side-curled short-spiral chips in metal cutting is particularly studied. It is found that the collision of the swinging chip and the unmachined workpiece surface or tool holder flank surface plays an important role in chip breaking. Based on a force analysis, a chip breaking criterion is established and the chip length is estimated. The relationship of chip breaking length and cutting parameters is derived and verified by experiment results, which can be used in chip length prediction. © 1997 American Society of mechanical Engineers (ASME). All rights reserved.

关键词： Metal cutting

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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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