An overview is given of nonlinear adaptive control. It is motivated by an aim to synthesise contributions from the Russian literature and some more recent work in the Western literature. A unifying view is given which...
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An overview is given of nonlinear adaptive control. It is motivated by an aim to synthesise contributions from the Russian literature and some more recent work in the Western literature. A unifying view is given which emphasises the concepts of matching conditions, (speed) gradient algorithms, exact linearization, passivity and robustness in a Lyapunov stability context.
Researchers at Texas A&M Universitv have studied the effects of battle damage on ship power distribution cables, with particular interest in damaged cables which did not fail immediately. The electrical signatures...
Researchers at Texas A&M Universitv have studied the effects of battle damage on ship power distribution cables, with particular interest in damaged cables which did not fail immediately. The electrical signatures of partiallv damaged cables are significant and are detectable with advanced protection methods used on terrestrial power svstems. Findings show that the damaged cable signatures are similar to those of arcing faults on terrestrial power distribution svstems, which can be reliably detected using an on-line expert svstem [1,2,3]. The implications of these findings are significant. Since the abilitv of a damaged ship to right through an encounter is entirelv dependent on keeping operational its various systems which rely on electric power, the ability to automatically detect and re-route power around damaged regions is imperative. By identifving the characteristics of failing power cables before catastrophic failure occurs, the protection process can be integrated into the ship automatic controlsystem. The overall result is a more survivable ship.
作者：
LUEDEKE, GFARNHAM, RBJR.George Luedeke
Jr.: received his BS degree in Mechanical Engineering from Massachusetts Institute of Technology and his MS degree in Product Design from Illinois Institute of Technology. Early in his career Mr. Luedeke joined General Motors Corporation as a designer responsible for development of people mover and rail rapid transit systems. From 1964 to 1974 he was with Hughes Aircraft Company. At Hughes he performed analyses and developed designs for a wide variety of program and proposal efforts such as: High Speed Ground Transportation (DOT) Task Force Command Center (NAVY) Panama Canal Marine Traffic Control Center (Panama Canal Co.) Royal Iranian Navy Command Center (Iran) Tactical Information Processing and Interpretation Center (Air Force) and WALLEYE CONDOR and PHOENIX Missile Systems (NAVY). He also had marketing development responsibilities related to the diversification of Hughes resources in civil business areas such as: Automatic train control (WMATA BARTD SCRTD) water/sewage treatment plant automation (Santa Clara County) Aqueduct Control (SWR) Hydrometeorological data collection (BPA WMO) and Salton Sea basin systems analysis (Dept. of the Interior). He was responsible for combat system integration for the Hughes 2000T Surface Effect Ship (SES) proposal. He also conducted detailed studies concerning ship flexure for the Improved Point Defense Target Acquisition System Program and for the definition of operational High Energy Laser weapon installations on a series of conventional monohulls (DLG DD and CVN). Since 1974 Mr. Luedeke has been employed at RMI Inc. (formerly Rohr Marine Inc.). During this time he has held several positions. His responsibilities have included directing a number of studies on advanced SES concepts managing activities defining mission/cost effectiveness of military and commercial SES's including defining the operational benefits and enhanced survivability characteristics of cargo SES's for high speed military sealiftfor NA TO and Southeast Asia
This paper will present the results of a marketing, engineering, and economic analysis of advanced marine vehicles done by IMA Resources, Inc. and RMI, Inc., in support of a Maritime Administration project to study “...
This paper will present the results of a marketing, engineering, and economic analysis of advanced marine vehicles done by IMA Resources, Inc. and RMI, Inc., in support of a Maritime Administration project to study “Multimode Express Shipping”. The study was conducted in 1981 and examined the economic benefits of using advanced marine vehicles as express cargo vessels in domestic and international service. Commodity characteristics, desirable express carrier rates, and potential high payoff service and route alternatives were identified. Advanced marine vehicles were surveyed and sized to meet desirable deadweight and block speed objectives. The costs of operating these craft on a variety of trade routes were calculated using an advanced marine vehicle economic analysis program. Revenues, expenses, break-even, profit and loss, cash flow requirements, tax summary and economic indicators (i.e., cost/ton – mile, etc.) were projected over the expected life of the vehicles as was return on investment. Traffic density and market penetration considerations narrowed the field of choice to smaller sized advanced marine vehicle carriers (i.e., 50 and 250 ton deadweight) and to three international and five domestic routes.
作者：
RAWLING, AGJOHNSON, NLArnold George Rawlings was born 20 December 1921 in Luke
Maryland. He received both a Bachelor's degree in Chemical Engineering and a Master's degree in Applied Mathematics from the University of Maryland. He served overseas as an LST officer in the Amphibious Forces of the United Navy participating in the Pacific campaigns of World War II. His professional experience includes theoretical mechanics at the Naval Ordnance Laboratory at White Oak (1949-52) digital computer design and large scale air defense system engineering at MIT (1952-54) Navy interceptor missile guidance and control system design at the Johns Hopkins Applied Physics Laboratory (1954-60) flight dynamics and currently submarine simulation as a consulting engineer with the General Electric Company. He is a member of the AIAA and Sigma Xi and is author of the papers “Automation and the Scientific Laboratory from a Systems Viewpoint” “Passive Determination of Homing Time” and “On Non-Zero Miss Distance.” Norman L. Johnson was born on 3 December 1937 in Three Falls
Michigan. He received a Bachelor's degree in Engineering Physics (1959) from Michigan Technological University and is currently studying towards a Master's degree. His professional experience at the General Electric Company includes analog and hybrid simulation engineering applications up to 1967. Since then he has held the post of Supervisory Engineer in the same area. Problems investigated during the past nine years include the body dynamics and control system design for interceptor missiles re-entry vehicles satellites and for the last two years submarines. He is co-author of the publication “Temperature Generated by the Flow of Liquids in Pipes.”
In designing the man-multiloop controlsystem for a small submersible, many different types of terminal equipment for manual intervention can interface with the human operator, including handlebars, wheels, joysticks ...
In designing the man-multiloop controlsystem for a small submersible, many different types of terminal equipment for manual intervention can interface with the human operator, including handlebars, wheels, joysticks and pedals. The proper choice of the means to control the boat in attitude and steering, as well as the actual implementation, constitute a major human factors design problem. This paper discusses a particularly promising concept of manual control that has shown superiority over several alternatives, and decribes the real-time simulation employed in verifying its advantages.
作者：
GRANET, IRVINGGUMAN, WILLIAMMCILROY, WILLIAMIrving Granet received his B.M.E. from The Cooper Unionhis M.M.E. from Polytechnic Institute of Brooklynhas taken Pre-Doctoral Studies at Polytechnic Institute of Brooklynand is a graduate of the Oak Ridge School of Reactor Technology.He has worked in Republic's Plasma Propulsion Laboratory on nuclear propulsion systems
space radiators thermodynamic power cycle considerations for generating electric power and system design and operation for space propulsion. He was formerly Director of Staff Engineering Nuclear Energy Department of Foster Wheeler Corporation where he directed engineering design and analysis for complete nuclear plants. Mr. Granet has taught thermodynamics and heat transfer at the Polytechnic Institute of Brooklyn and at present is Adjunct Assistant Professor of Engineering and Physics at Long Island University. He has published over 40 articles in the fields of thermodynamics
applied mechanics heat transfer and nuclear energy. He is a member of the American Society of Mechanical Engineers National Society of Professional Engineers Pi Tau Sigma and Sigma Xi. He is a licensed Professional Engineer in the State of New York. Mr. Granet is listed in the 1960 edition of American Men of Science and is a reviewer for the American Chemical Society's technical publications. William J. Guman received degrees of B. Aero. E.
M. Aero. E. from and has completed courses for Ph.D. Aero. E. at Rensselaer Polytechnic Institute. Since coming to Republic in 1959 Mr. Guman has been conducting theoretical and experimental studies on non-steady interactions and flow processes in plasma engine configurations. Mr. Guman was Assistant Professor at Rensselaer Polytechnic Institute lecturing on fluid mechanics aerodynamics performance and stability and conducting laboratory courses in experimental fluid dynamics and wind tunnel research. He also investigated flow induction and was head of Rensselaer's supersonic wind tunnel laboratory. Mr. Guman performed a theoretical analysis in experimental aerodynamic
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