作者:
M. FeemsterD.M. DawsonA. BehalW. DixonMatthew Feemster received the B.S degree in Electrical Engineering from Clemson University
Clemson South Carolina in December 1994. Upon graduation he remained at Clemson University and received the M.S. degree in Electrical Engineering in 1997. During this time he also served as a research/teaching assistant. His research work focused on the design and implementation of various nonlinear control algorithms with emphasis on the induction motor and mechanical systems with friction present. He is currently working toward his Ph.D. degree in Electrical Engineering at Clemson University. Darren M. Dawson was born in 1962
in Macon Georgia. He received an Associate Degree in Mathematics from Macon Junior College in 1982 and a B.S. Degree in Electrical Engineering from the Georgia Institute of Technology in 1984. He then worked for Westinghouse as a control engineer from 1985 to 1987. In 1987 he returned to the Georgia Institute of Technology where he received the Ph.D. Degree in Electrical Engineering in March 1990. During this time he also served as a research/teaching assistant. In July 1990 he joined the Electrical and Computer Engineering Department and the Center for Advanced Manufacturing (CAM) at Clemson University where he currently holds the position of Professor. Under the CAM director's supervision he currently leads the Robotics and Manufacturing Automation Laboratory which is jointly operated by the Electrical and Mechanical Engineering departments. His main research interests are in the fields of nonlinear based robust adaptive and learning control with application to electro-mechanical systems including robot manipulators motor drives magnetic bearings flexible cables flexible beams and high-speed transport systems. Aman Behal was born in India in 1973. He received his Masters Degree in Electrical Engineering from Indian Institute of Technology
Bombay in 1996. He is currently working towards a Ph.D in Controls and Robotics at Clemson University. His research focuses on the control of no
In this paper, we extend the observer/control strategies previously published in [25] to an n -link, serially connected, direct drive, rigid link, revolute robot operating in the presence of nonlinear friction effects...
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In this paper, we extend the observer/control strategies previously published in [25] to an n -link, serially connected, direct drive, rigid link, revolute robot operating in the presence of nonlinear friction effects modeled by the Lu-Gre model. In addition, we also present a new adaptive control technique for compensating for the nonlinear parameterizable Stribeck effects. Specifically, an adaptive observer/controller scheme is developed which contains a feedforward approximation of the Stribeck effects. This feedforward approximation is used in a composite controller/observer strategy which forces the average square integral of the position tracking error to an arbitrarily small value. Experimental results are included to illustrate the performance of the proposed controllers.
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 Structure...
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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.
The present paper deals with design of high precision robot control systems using slip displacement sensors. The control systems under consideration have a hierarchical structure: tactical control level for planning o...
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The present paper deals with design of high precision robot control systems using slip displacement sensors. The control systems under consideration have a hierarchical structure: tactical control level for planning of robot behaviour and finalcontrol level on the basis of realization of desirable dynamic characteristics for robot gripper and robot drives. Sensor system provides the indentification of gripper mass (including object mass) using sensor information about the object slippage between robot’s gripper fingers. The slip displacement signal acts to robot control system which provides algorithm correction. It is very important for several objects with different mass or for one object with various masses during manipulated process. Structure robot control system with channel for algorithm correction and analysis of slip displacement sensors are given.
作者:
DUNIETZ, ISHSU, JLCMCEACHERN, MTSTOCKING, JHSWARTZ, MATROMBLY, RMThe authors
Irwin S. Dunietz John L.C. Hsu Michael T. McEachern James H. Stocking Mark A. Swartz andRodney M. Tromblyare responsible for design and development of the Manufacturing Process Control System. Mr. Dunietz joined AT&T in 1980. He is a member of the technical staff in the Manufacturing Information Automation department at AT&T Engineering Research Center Princeton New Jersey. He received an A.B. in mathematics from Cornell University and an M.S.E. in computer science from Princeton University. Mr. Hsu who joined AT&T in 1970 is a department head in the Manufacturing Information Automation department at the Engineering Research Center. He received an M.S. in electrical engineering from the University of Missouri. Mr. McEachern joined AT&T in 1962 and is a supervisor in the 5ESS™ Line Unit Manufacturing department at AT&T Technologies in Oklahoma City Oklahoma. He is responsible for the manufacturing process control center in Oklahoma City which provides computerized support for all circuit pack manufacturing. Mr. Stocking who joined AT&T in 1975 is a supervisor in the Manufacturing Information Automation department at the Engineering Research Center. He received a B.S. in chemical engineering from Rensselaer Polytechnic Institute and a Ph.D. in chemical engineering from the University of California Berkeley. Mr. Swartz joined AT&T in 1980 and is a member of the technical staff in the Manufacturing Information Automation department at the Engineering Research Center. He received an A.B. in computer science from Cornell University and an M.S. in computer science from Rutgers—The State University. Mr. Trombly who joined AT&T in 19 78 is an assistant manager at the AT&T Merrimack Valley Works in Massachusetts. Previously he was a supervisor at the Engineering Research Center. He holds a B.S. in computers and systems engineering and an M.S.E.E. from Rensselaer Polytechnic Institute.
The central challenge of all manufacturing is making products to the right standards and delivering them at the right time. AT&T is upgrading its corporate and factory resource planning systems to improve control ...
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The central challenge of all manufacturing is making products to the right standards and delivering them at the right time. AT&T is upgrading its corporate and factory resource planning systems to improve control of day-to-day manufacturing. The Manufacturing Process control System (MPCS), developed at the AT&T Engineering researchcenter (ERC), provides this support. MPCS connects the shop floor with production scheduling, accounting, product data archive, and engineering support systems.
作者:
MELLIS, JGPLATO, AIREIN, RJJames G. Mellis:attended Central Institute in Kansas City
Mo. where he graduated in Electronic Engineering Technology. He later attended the University of Minn. in Minneapolis. At present he works in the Manning and Controls Integration Section of the Naval Sea Systems Command. Mr. Mellis is responsible for developing manpower requirements for ship design and for the coordination of shipboard automation designs with the U.S. Navy's manpower policies and availability. Mr. Mellis is currently developing manpower requirements for the U.S. Navy's DDGX ship design. In this capacity he has examined proposals for shipboard manpower reductions through the use of automation and remote control techniques. Another project where Mr. Mellis is heavily engaged in is the Ship Systems Engineering Standards (SSES) development. Mr. Mellis is the assistant project manager for the test and evaluation and producibility aspects of the SSES project. Previously prior to his employment with NAVSEA Mr. Mellis worked for General Dynamics/Electronic Division as a Senior Field Engineer on the Apollo Instrumentation Ships (i.e. Vanguard Restone Mercury). He was responsible for Central Data Processing Systems on the three ships. Artis I. Plato:is the Head of the Manning and Controls Integration Section of the Naval Sea Systems Command (NAVSEA). He is responsible for the development of accurate manpower requirements for all new construction and major overhaul ship projects for the U.S. NAVY. In addition
Mr. Plato must coordinate shipboard controls integration and automation aspects with manpower requirements to insure that a compatible solution is developed. Mr. Plato began his professional career in 1956 at the New York Naval Shipyard. There
he worked in the Internal Combustion Engine and Shipboard Elevator Section. During 1957 and 1958 he was called up for active duty with the U.S. Army Corps of Engineers. He served in Europe with various Construction Engineers units. After release from active duty he returned to the shipyard. In 19
This paper examines the recent experience in the UNITED STATES NAVY where automation has been introduced into new ship designs. While other attributes are recognized in the introduction of automated shipboard systems,...
This paper examines the recent experience in the UNITED STATES NAVY where automation has been introduced into new ship designs. While other attributes are recognized in the introduction of automated shipboard systems, such as the ability to respond more quickly in combat situations, this paper focuses on the effects of automation upon ship manpower requirements. Specific examples show that expected reductions in manning were not achieved in recent ship designs where automation was incorporated for that purpose. While the use of shipboard automation is not without its critics, the U.S. Fleet appears to have accepted the concept. User feedback addresses the issues of reliability, the provisions for backup systems, the need for better qualified personnel and the concern about maintenance workload. The authors provide specific recommendations for improved guidance to ship designers to more effectively apply automation in the ship design process.
The paper provides a dynamic analysis of a COGAS Propulsion Plant, including mathematical modeling and simulation, and concludes with the results of a COGAS simulation which indicates encouraging conclusions regarding...
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