A ship design methodology is presented for developing hull forms that attain improved performance in both seakeeping and resistance. Contrary to traditional practice, the methodology starts with developing a seakeepin...
A ship design methodology is presented for developing hull forms that attain improved performance in both seakeeping and resistance. Contrary to traditional practice, the methodology starts with developing a seakeeping-optimized hull form without making concessions to other performance considerations, such as resistance. The seakeeping-optimized hull is then modified to improve other performance characteristics without degrading the seakeeping. Presented is a point-design example produced by this methodology. Merits of the methodology and the point design are assessed on the basis of theoretical calculations and model experiments. This methodology is an integral part of the Hull Form Design system (HFDS) being developed for computer-supported naval ship design. The modularized character of HFDS and its application to hull form development are discussed.
CAD methods for multivariable discrete-time optimal state-feedback controlsystems including integral output feedback and observers with known and/or unknown inputs are discussed. Depending on the performance index di...
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CAD methods for multivariable discrete-time optimal state-feedback controlsystems including integral output feedback and observers with known and/or unknown inputs are discussed. Depending on the performance index different combinations of feedback and feedforward controllers are obtained. The effects of measured and observed disturbances and set point changes are shown by simulation studies of a 14th order steam generator subsystem. The implementation of theory, algorithms and software is sketched.
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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