作者:
DONOVAN, MRMATTSON, WSMichael R. Donovanis a 1974 graduate of the United States Naval Academy where he received his undergraduate degree in naval architecture. In 1975 he received a master of science degree in naval architecture and marine engineering from the Massachusetts Institute of Technology. After completing the Navy's nuclear power training program
he served as machinery division officer in USSBainbridge (CGN-25) and chemistry and radiological controls assistant in USSLong Beach (CGN-9). He successfully completed the Navy's surface warfare officer qualification and passed the nuclear engineer's examination administered by Naval Reactors. He was then assigned to the Ship Design and Engineering Directorate (SEA-05) Naval Sea Systems Command as head systems engineer on the DDG-51 ship design project where he received the Navy Commendation Medal for outstanding performance. He is currently with Solar Turbines Incorporated as manager ship integration and integrated logistic support for the Rankine cycle energy recovery (RACER) system. Mr. Donovan has lectured at Virginia Polytechnic Institute teaching marine engineering and has given presentations on ship design at various symposiums and section meetings for both ASNE and SNAME. He has been a member of ASNE and SNAME since 1972 and is registered as a professional engineer in California and Virginia. Wayne S. Mattsonreceived his B.S. degree in mechanical engineering from Western New England College in 1972. Following graduation
he attended Naval Officer Candidate School and was subsequently assigned as a project officer to COMOPTEVFOR where he was responsible for technical and operational test plans their execution and final equipment appraisal. Following a tour as engineering officer aboard the USSNespelen (AOG-55) he was assigned as commissioning MPA aboard the USSElliot (DD-967) the fifthSpruanceclass destroyer. For the past six years he has been employed by Solar Turbines Incorporated in program management within the advanced development department. He is currently
There is a great deal of emphasis currently in the Navy on the issues of reliability and maintainability. If a system or component is out of commission, it obviously cannot perform its mission. Thus, systems and compo...
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There is a great deal of emphasis currently in the Navy on the issues of reliability and maintainability. If a system or component is out of commission, it obviously cannot perform its mission. Thus, systems and components must be reliable, with low failure rates, and maintainable, with short repair times when the system does become inoperable. To be effective, these attributes must be incorporated into new ship systems early in the design stage. The Rankine cycle energy recovery (RACER) system is a heat recovery steam cycle designed to recover energy from the exhaust of an LM2500 gas turbine for augmentation of a ship's propulsion system. The RACER system provides several advantages to a gas turbine powered ship, one of which is improved fuel efficiency for significant annual fuel savings. This saving does not come free, however, since, in general, any additional system installed in the ship will have some maintenance requirements. In keeping with the Navy's current emphasis, a key philosophy in the design of the RACER system has been to minimize this maintenance burden. After a brief description of the RACER system and its design philosophy, the techniques being used during the design phase to minimize the maintenance burden on the fleet are presented. Trade-off studies concerning acquisition versus life-cycle costs, including fuel and maintenance costs, are discussed. Innovations incorporated into this state-of-the-art system are reviewed with an emphasis on design for affordability.
作者:
MATTSON, WSThe authorreceived his B.S. degree in Mechanical Engineering from Western New England College in 1972. Following graduation
he attended Naval Officer Candidate School and was subsequently assigned as a project officer to COMOPTEVFOR where he was responsible for technical and operational test plans their execution and final equipment appraisal. Following a tour as Engineering Officer aboard theUSS Nespelen(AOG 55) he was assigned as commissioning MPA aboard theUSS Elliot(DD 967) the fifth SPRUANCE class destroyer. In that capacity he directed engineering training of the nucleus crew and coordinated the activation of the commissioning engineering department. For the past two years he has been employed by Solar Turbines International as a project engineer in the advanced development department. He is currently assigned as project engineer for design and development of the RACER system. Mr. Mattson is a registered Professional Engineer in California and a member of ASNE SNAME and ASME.
The current NAVSEA program to design and develop a waste heat recovery gas turbine cruise propulsion plant called RACER is discussed. RACER is an acronym for RAnkine Cycle Energy Recovery which describes the steam bot...
The current NAVSEA program to design and develop a waste heat recovery gas turbine cruise propulsion plant called RACER is discussed. RACER is an acronym for RAnkine Cycle Energy Recovery which describes the steam bottoming cycle designed to recover waste exhaust heat from LM2500 gas turbines and augment the main propulsion system through a steam turbine. Such waste heat recovery systems, when used in naval applications, have been more commonly called combined gas and steam turbine (COGAS) propulsion plans. The acronym RACER, however, will be used throughout this paper in the place of the historic COGAS term in an attempt to distinguish the proposed system, which incorporates advanced technology and some unique design concepts, from traditional practice. The conceptual design philosophy followed by Solar as it applies to non-nuclear surface combatants is discussed and the major system components described. Installation and operational considerations are presented. Control and monitoring philosophy is discussed briefly as it relates to the system concept. System performance is presented including its relationship to fuel savings and increased military effectiveness.
The MTIRA and other research organizations attempted to establish the standard test conditions for the dynamic performance of machine tools, when using cutting test procedure. However, the scatter of data obtained thr...
The MTIRA and other research organizations attempted to establish the standard test conditions for the dynamic performance of machine tools, when using cutting test procedure. However, the scatter of data obtained through their procedures even for the same type of machine are so wide that those standardizations may be considered to be quite far from perfection, because they failed to consider some important chucking conditions, e.g. the chucking force, the chucking length, the relative shape of the inner face of jaws with respect to the testpiece specification and the number of jaws. Moreover, their considerations about some of the cutting conditions, e.g. the length of overhang of the testpiece and the approach angle of the cutting tool are not complete ones. This contribution reveals that through the optimization of both the conditions mentioned above it is quite possible to reach the condition of perfection.
The case is made that the aesthetic considerations that make a warship appear to be an effective combatant do not conflict with the design engineering considerations that contribute to combat effectiveness. The featur...
The case is made that the aesthetic considerations that make a warship appear to be an effective combatant do not conflict with the design engineering considerations that contribute to combat effectiveness. The features suggested by Roach and Meier [1, 2] for making a warship look warlike are shown to have been included in the configurations of two ships as a result primarily of engineering considerations, without stressing aesthetics.
作者:
TODD, JMPERKINS, JLt. James M. Todd
USN:is a 1968 graduate of the United States Merchant Marine Academy with a BS in Marine Engineering. He served aboard various maritime ships as an operating engineer on marine propulsion plants. His active duty in the U.S. Navy began in 1969 and as an Engineering Duty Officer (ED) his assignments included Main Propulsion Assistant in the USS Golds borough (DDG-20) and Machinery Maintenance Program Officer at NAVSECNORDIV. He is presently attending the U.S. Naval Postgraduate School where he is pursuing a program leading to an MS degree in Mechanical Engineering and the degree of Mechanical Engineer. Dr. Jeff Perkins:holds a PhD in metallurgy from Case Western Reserve University
and did postdoctoral work for two years at Carnegie-Mellon University. Since 1972 he has been Assistant Professor of Materials Engineering in the Department of Mechanical Engineering at the U.S. Naval Postgraduate School. His particular areas of interest are corrosion failure analysis and microanalytic techniques.
作者:
AZIZ, ABDULTHE AUTHOR was born in East Pakistan on January 31
1932 received the Bachelor of Science degree in Mechanical Engineering from the Dacca University in Pakistan in 1952 and the Master of Science degree in Mechanical Engineering from the Michigan State University in 1953. He did further graduate work at MIT Columbia and Johns Hopkins Universities and is now a candidate for the doctoral degree at the University of Maryland. He joined the Department of Navy in March 1966 with the Naval Ship Research and Development Center Annapolis Division where he worked on the MESA (Machinery Effectiveness Systems Analysis) Program sponsored by the Navy Ship Systems Command. The present paper is largely based on a 138-page report entitled “Systems Effectiveness in the United States Navy” on the works of the MESA Program. Currently he is assigned to the Naval Research Laboratory to provide inhouse engineering support in the development and analysis of systems and their components for the conduct of fundamental research in Astronomy and Astrophysics by the Laboratory. Prior to joining the Department of Navy he worked for General Electric Cdmpany in the analysis and development of large steam turbine components and for Burns & Roe Corporation in systems design and analysis for power plants both fossil powered and nuclear. With Burns & Roe he participated in the systems effectiveness analysis of the Army PM-3A nuclear power plant in the Antarctica. He received the United States citizenship in January 1966 is a member of the ASME and the U.S. Naval Institute.
作者:
FAETH, G.M.WHITE, D.F.G. M. Faeth
Research Assistant in the Department of Mechanical Engineering at The Pennsylvania State University served as project engineer for the research program described in this paper. He received the degree of B. M. E. from Union College in 1958 and is a candidate for the M. S. degree at Penn State. D. F. White
Associate Professor of Mechanical Engineering at Penn State was responsible for technical supervision of the work.
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