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Coordinated control and its implementation

Process Safety Progress 1982年第2期1卷 85-90页

作者： C. S. Lin T. H. Tsai J. W. Lane Tenneco Inc. Houston Texas 77001 Cheng S. Lin:was born in Taiwan and received a BS in Mechanical Engineering at Cheng Kung University. He came to the Rensselaer Polytechnic Institute in 1959 where he received a MME in Mechanical Engineering in 1962 and a PhD in Mechanical Engineering in 1966 He spent three years at West Virginia Pulp and Paper Co. in Process Control Research three years at TRW Inc. Systems Group on the Apollo program and nine years at Bonner and Moore Assoc. installing process control systems worldwide. He joined the Operations Technologies Department of Tenneco Inc. as a Consulting Engineer in June 1980. He is a US citizen and a member of IEEE. Thomas H. Tsai:is a Managing Engineer of the Operations Technologies Department of Tenneco Inc. He is a Registered Professional Engineer in the State of Calif. and is a Member of AIChE and a Senior Member of ISA. He received a BS degree in Chemical Engineering at Tunghan University of Taiwan and attended graduate school at Oklahoma State University. James W. Lane:received a BE and MS in Chemical Engineering from the University of Southern California. He is a Registered Professional Engineer in the States of Tex and Calif. and is a Member of the AIChE Senior Member of the IEEE and Senior Member of the SME. For the last seven years he has been Director of the Operations Technologies Department of Tenneco Inc. a cooperate engineering group providing expertise in advanced control technology for process control energy management and environmental monitoring systems.

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SUPERIORITY AT SEA - AN AFFORDABLE SYSTEM FOR THE 1990S

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NAVAL ENGINEERS JOURNAL 1982年第2期94卷 29-38页

作者： FLUK, H The authorgraduated from New York University in 1952 as an Aeronautical Engineer and entered the United States Air Force (USAF). He attended the USAF Institute of Technology for graduate Aerodynamics and following that served three years as a Project Officer in the field of Special Weapons. Returning to civilian life in 1957 he joined Curtiss-Wright Corporation's Engine Division and shortly thereafter transferred to the company's Model 200 V/STOL Aircraft Program later to become the Tri-Service X-19. His responsibilities variously included Flight Loads and Controls Aerodynamic Research and publication of the X-19 Aircraft Technology. In 1966 he joined Boeing's VERTOL Division initially working in helicopter stability and then in downwash and autorotation characteristics. This was followed by research and development and long-range planning and then assignment to introduce new computer services to the Engineering Department. In 1975 he joined the Naval Air Engineering Center Lakehurst N.J. to provide technology in horizontal and vertical engine jet flows and at the present time is Manager for Systems Studies in the Advanced Systems Office where he works with the Aircraft and Ship Communities to enhance military effectiveness at sea.

A weapons system has been configured specifically to counter (or preempt) the long-range standoff missile threat. Rationale for this system starts with a discussion of cost and weight, and shows why modern multi-mission systems have become intolerably expensive. Questions are raised regarding the advantages and disadvantages of building future naval aviation forces solely around the Aircraft Carrier Battle Group. The application of a few small modern ships, forming a future Battle Force, holds promise for large economies. Likewise, some accepted views regarding CTOL (Conventional Take Off & Laundry) and V/STOL (Vertical Short Take Off & Launding) aircraft are revisted in terms of their relative costs. A weapons system is proposed which, at one-fourth the weight of an Aircraft Carrier Battle Group, may be produced and operated for one-third the cost.

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SYNTHETIC FUEL CONSIDERATIONS FOR NAVAL SHIPBOARD USE

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NAVAL ENGINEERS JOURNAL 1982年第2期94卷 286-295页

作者： FAIRBANKS, JW KENYON, CW Capt. John W. Fairbanks USNR:received his M.S. degree from the University of Santa Clara and his B.S. degrees from Stanford University and the Maine Maritime Academy. He taught at the Texas A&M University and the University of Maryland and from 1954 until 1957 served in the U.S. Navy in the Pacific. Subsequently he was a Research Engineer with Hiller Aircraft where he worked on the annular ejector and designed the High-Speed Bearing and Shaft Test Stand for XC-142A and later at Philco Ford worked on advanced space power systems. At NASA-Goddard in 1967 as a Power System Engineer he was employed on several space craft including the Orbiting Astronomical Observatory. From 1971 until 1977 he was employed by the Naval Ship Engineering Center (NAVSEC) as a Program Engineer for FT9 Marine Gas Turbine Development and the Ceramic Demonstrator Gas Turbine and also as Coordinator of Gas Turbine Material Development. In addition he organized the first two Gas Turbine Materials on Marine Environment Conferences and the U.S. participation in the U.S. Navy/Royal Navy Conference. Currently he is a Program Manager in Applied Heat Engine High Temperature Materials and Instrumentation at the Department of Energy (DOE) where he also served as Chairman Engineering Materials Coordinating Committee for DOE. A Naval Reserve Captain and Chairman of the ASME Washington Chapter he also is the former President of the Washington Chapter of the Maine Maritime Academy Alumni former Vice-President of the Stephen Decatur Chapter Naval Reserve Association and the outstanding 1975 Maine Maritime Academy Alumni. Capt. Fairbanks has authored over forty-five technical papers and in both 1974 and 1975 was the winner of the ASE Niedermair Award. Mr. Clarence W. Kenyon:graduated from the State University of New York Maritime College in 1960 and sailed on a Third Assistant Engineer's license with Isbrandtsen Steamship Company before accepting an engineering position with the Long Beach Naval Shipyard in 1961. In addition to his responsibilit

Synthetic fuels are assessed with respect to their potential use aboard Navy ships. The status of petroleum resources and the development of fuels from shale, coal, and biomass is summarized. A scenario of the projected availability of these fuels is presented which shows the sensitivity to funding and schedule. Diesel engine and gas turbine combustor tests with small quantities of coal derived and shale derived fuels are described and these tests results are evaluated for shipboard applications. Special shipboard modifications are discussed such as the replacement of rubber base seals, gaskets, and hoses with viton and teflon, and the use of stainless steel piping because of the fuel characteristics. Considerations for dual fuel systems using Diesel Fuel Marine for starting, stopping, and maneuvering are included based upon early test results. Consideration is given to the use of these fuels in the shipboard environment since they require special handling and adoption of personnel safety measures.

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AN INNOVATIVE ENERGY SAVING PROPULSION SYSTEM FOR NAVAL SHIPS

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NAVAL ENGINEERS JOURNAL 1982年第2期94卷 200-213页

作者： SCHLAPPI, HC The authorhas diversified experience in the marine naval weapons and aerospace fields mainly in the area of research and development. After serving four years in theU.S. NAVYhe attended Oregon State University where he received BSME and MSME degrees in Mechanical Engineering specializing in fluid and solid mechanics. Following graduation he worked on naval weapon development at the Naval Ordnance Test Station in Pasadena California where he headed the Structural Test Laboratory and at the Naval Nuclear Weapons Evaluation Facility in Albuquerque New Mexico where he headed the underwater weapons department. The last 20 years of Mr. Schlappi's career have been in the area of high technology rotating machinery development which started with development of turbopumps for liquid rocket engines at the Aerojet Liquid Rocket Company in Sacramento California in 1961. With the decline in the aerospace market he was instrumental in the application of high technology from aerospace to marine propulsion. He was responsible for the conceptual design and directed the development and application of ten different marine jet propulsion systems while at Aerojet. As project engineer and program manager he directed the development and manufacture of the 6000 SHP marinejets which propelled the Navy Surface Effect Testcraft SES-100A to over 80 knots and the two marine jet propulsion systems 20000 SHP foilborne and 900 SHP hullborne which currently propel the highly successful Navy PHM (PEGASUS Class) Hydrofoil. Before joining Ingalls Shipbuilding in 1978 Mr. Schlappi worked as a consultant on marine propulsion and as Manager of Marine Products at Jacuzzi Brothers Inc. at Little Rock Arkansas. The author has presented many technical papers and reports in the past and is a member of ASNE and AIAA.

The propulsion system on most naval combatants is inherently wasteful of fuel since the propellers, shafts, and engines are sized for dash speed, but operate most of the time at low speed cruiser power. Energy consumption is particularly high on twin shaft, gas turbine driven ships which use controllable reversible pitch (CRP) propellers for reversing. On a typical destroyer such as DD 963, the drag of the propulsion appendages is very high, 10–15% of the total ship drag. This drag is present even when operating at low cruise speed where a system with much lower drag could provide the required thrust. This study evaluates several alternate propulsion systems which could be used on a DD 963 type ship to reduce annual fuel consumption. An innovative system, which uses a single DD 963 type propeller system for cruise and two marine jet boosters for added thrust during high speed dash, shows promise of reducing annual fuel consumption by 23 percent. This fuel saving is due to reduced propulsion appendage drag and lower specific fuel consumption during cruise. Annual fuel saving can be further increased to 45% by replacing the two LM-2500 turbines which drive the propeller with a single turbine equipped with Rankine Cycle Energy Recovery System (RACER) and changing the CRP propeller to a more efficient fixed pitch (FP) propeller with reverse gear for astern operation. In addition to reduced energy consumption, the propulsion systems using marine jet boosters for dash speed show promise of significant benefits in other areas such as reduced weight and improved survivability and reliability. The marine jets, which use state-of-the-art technology and have demonstrated performance, provide the same top speed as the baseline propeller system. Improved low speed maneuvering and crash stop capability is provided by reversers on the marine jets. Improved propulsion system redundancy is provided by the three shaft system. A single marine jet will provide nineteen knots speed with

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THE CONSTRUCTION OF VARIABLE PAYLOAD SHIPS

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NAVAL ENGINEERS JOURNAL 1982年第2期94卷 179-199页

作者： THOMPSON, DH THORELL, LM Daniel H. Thompson Jr.:is a native of Louisville Kentucky. He graduated from Webb Institute of Naval Architecture in 1957. He was an Engineering Duty Officer in theUNITED STATES NAVYprimarily in the Far East responsible for ship repair and overhaul. He joined Sparkman & Stephens Inc. New York City as Assistant to the Chief Engineer in 1963 and worked on commercial military and private contracts. He has worked for Bath Iron Works since 1967. Between 1967 and 1971 he served first as Project Engineer on the DLG-16 Class Ship Modernization Program which involved eight ships and later as the Assistant to the Production Manager when he assumed the responsibilities for production management administration and sea trial coordination. He organized and directed cost reduction programs and led the development of a comprehensive management administration information system. Between 1971 and 1972 Mr. Thompson served as the Facilities Project Manager responsible for the execution of a nine million dollar shipyard facilities improvement program. In 1972 Mr. Thompson was appointed as the Producibility Assurance Manager for the FFG-7 Program. In this capacity he reviewed the detail design work and coordinated the early activities of the subcontractor responsible for detail design. He was also responsible for the development of the FFG-7 Class Producibility Assurance Manual which provided guidance to the detail designers on production/design integration. During the DG-47 (now CG-47) studies at BIW Mr. Thompson served as the Deputy Program Manager for DG-47 Technical Characterization in 1977. At present Mr. Thompson is working as a Project Engineer in the Technical Department. He is responsible for coordinating the engineering work on new DDGX and Variable Payload Ship projects. On special assignment he is also supporting the Cost Reduction Program at BIW as Chairman of the Technical Committee. Mr. Thompson is a member of SNAME and ASNE and is a licensed professional engineer in New York and Maine. Len Thorell:is a

The decoupling of combat systems from the platform makes it possible for shipyards and combat system suppliers to work in parallel without schedule or technological conflict. Great benefit is derived from building one, standard platform able to accommodate a variety of combat systems. The capability to build and test the payload modules independently, in a well equipped shore-based facility, means higher production efficiency and improved quality control. The standardization of payload-platform interfaces means that the detail design and construction of foundations and distributive systems need not be delayed if some of the combat system components are being upgraded at the time when the ship is in construction. Additionally, shipyards recognize the value of the variable payload ship concept for major combat systems and weapons upgrades. Analysis shows that combat system changes will not lie on the critical path from a scheduling point of view if the payload items are modularized and conform to the Ship systems engineering Standards. The shipyards intend to participate actively in the conservation of tenth-scale models and full-scale mock-ups. These mock-ups should prove valuable in the definition of interface requirements which must be incorporated in the Ship System engineering Standards. The module installation procedures and clearance requirements for both weapons modules and pelletized electronics can be checked in this effective way. Variable payload ship platform construction poses no technical problems as far as new facility requirements are concerned. Shipyards interested in assembling, testing, and installing payload modules would, however, have to use appropriate buildings, equipment, and cranes. These capital requirements are significant but reasonable for those yards that are likely to be interested in building frigates, destroyers, or cruisers. Furthermore, these yards generally plan for production improvements through better facilities, many of which

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DESIGN BUDGETING - A BOLD NEW SHIP ACQUISITION STRATEGY ... NOW A PROVEN CONCEPT

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NAVAL ENGINEERS JOURNAL 1981年第2期93卷 67-74页

作者： JARVIS, PS KAZAL, JD CAMPBELL, DB HAFF, MW Mr. Paul S. Jarvis:graduated from Virginia Polytechnic Institute from which he received his B.S. degree in Mechanical Engineering in 1962 and later he received his M.S. degree in Administration from The George Washington University in 1967. He has been in the AEGIS Shipbuilding Program since July 1971 and has served as Ship Systems Engineering Manager for CG 47 since 1977. Mr. Jarvis is a member of Tau Beta Pi and Pi Tau Sigma Engineering Fraternities and the Phi Kappa Phi National Scholastic Society. Mr. J. David Kazal:graduated from Colorado A&M from which he received his B.S. degree in Mechanical Engineering in 1951. Currently he is employed by the Ingalls Shipbuilding Division Litton Systems as a Project Engineer on the CG 47 Class Ship Program. During World War II he served in the U.S. Navy in Submarines. Mr. Kazal is a member of the American Society of Mechanical Engineers (ASME). Mr. Donald B. Campbell Jr.: received his B.S. degree in Electrical Engineering from North Carolina State University in 1961. He has over twenty-three years of professional experience in Ship Electronics System Engineering and was formerly a member of the Electrical Design Division at Newport News Shipbuilding. Additionally he was involved in quantification and evaluation of contractor shipbuilding claims against the U.S. Navy while he was employed by Booz-Allen Applied Research. Currently he is a Senior Member of the Engineering Staff at RCA providing program and engineering coordination for the AEGIS Program. Mr. Maurice W. Haff:received his B.S. degree in Electrical Engineering from Oklahoma State University in 1970. His advanced degrees which he received from The George Washington University are an M.S. degree in Management Engineering (1975) and an M.B.A. degree in International Business (1980). He has eleven years of engineering and management experience gained in a wide range of Navy Programs. While he was involved with “Design Budgeting” for the CG 47 from the beginning of the program as a Project Engineer Mr.

Traditional ship acquisition practices no longer support the requirements of today's shipbuilding programs. These practices require development of major combat and ship systems to be essentially complete prior to issuance by the government of the Request For Proposal (RFP) for ship detail design and construction. With the need for timely delivery of warships equipped with the most modern weapon systems possible, and maximum remaining years of functional effectiveness after delivery becoming increasingly important, new acquisition strategies are essential. “Design Budgeting,” an innovative new Navy acquisition and design strategy, is now a proven concept. Developed and implemented by the AEGIS Shipbuilding Project, it has been explored in depth with the Shipbuilding Industry as an alternative acquisition process that enables Combat System development and ship acquisition to proceed concurrently. Applied for the first time in the acquisition of Ticonderoga (CG-47), its use permitted development of major portions of the AEGIS Combat System (later to be Government Furnished Equipment to the shipbuilder) to continue well into ship detail design and construction without impact on overall schedules. Hundreds of changes to the ship engineering baseline which resulted from continued development and test of Combat System, were incorporated into the shipbuilding contract with no cost increase or delay and disruption of the shipbuilding schedule. Proven, adaptable, and available now, “Design Budgeting” is an acquisition and design strategy than can satisfy the requirements of current and future shipbuilding programs.

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GAS-TURBINE WASTE HEAT-RECOVERY PROPULSION FOR UNITED-STATES NAVY SURFACE COMBATANTS

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NAVAL ENGINEERS JOURNAL 1981年第5期93卷 65-75页

作者： MARRON, HD Mr. H.D. Matron:received his B.S. degree in Aerospace Engineering from the University of Maryland in 1965. His initial job experience was with Pratt and Whitney Aircraft as an advanced performance engineer and later with Garrett AIRsearch as an advanced design engineer on gas turbine aircraft propulsion engines. In 1970 he joined the Navy at the David Taylor Naval Ship Research and Development Center (DTNSRDC) as project engineer on closed cycle systems for underwater vehicles. In 1973 he joined NAVSEC as project engineer responsible for a variety of advanced marine gas turbines and associated equipments. Mr. Marron is currently responsible for the waste heat boiler life improvement program for Spruance class destroyers establishment of a combined auxiliary power system test and support facility for the CG-47 class and design development test and evaluation of the Rankine Cycle Energy Recovery (RACER) systems for ship cruise propulsion in the 1980's. He is a member of ASE and ASME and has presented numerous papers on subjects ranging from closed cycle systems to advanced energy recovery systems since joining the NAVY.

This paper will discuss the current NAVSEA program to design, develop, test, and evaluate a Waste Heat Recovered marine gas turbine cruise propulsion plant for non-nuclear surface combatants. Elements of the paper to be addressed include: alternative systems considered for cruise propulsion development, the combined cycle design objectives of simplicity, low maintenance, high reliability, a 20 percent overall performance goal and minimal ship impact on weight and volume. The need to involve industry support in all phases of system development and into production will be discussed relative to the overall need to reduce initial capital and logistic support costs.

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SURFACE SHIP CONFORM - DIMENSION 2000

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NAVAL ENGINEERS JOURNAL 1981年第2期93卷 101-106页

作者： TERRY, MR is currently serving as a Research and Development Program Manager in the Ship Design and Integration Directorate Naval Sea Systems Command (NA VSEA). He has been an Engineering Duty Officer (ED) since his commissioning at the NROTC Unit of the Massachusetts Institute of Technology where he received his B.S. degree in Mechanical Engineering in 1962. Following duty abroad the USS Lynde D. McCormick (DDG-8) in the Pacific (1962-64) and as Project Officer for the construction of the USS Plainview (AGEH-1) at the Supervisor of Shipbuilding Seattle (1964-66) he received his M.S. degree in Mechanical Engineering and his Naval Engineer's Degree from the 13A course at Massachusetts Institute of Technology in 1969. Subsequent duties included: AALC Hovercraft Program DTNSRDC (1969-72) Naval Advisory Group Saigon (1972-73) Combat Systems Advisory Group Chief of Naval Material (1973-74) USS Pegasus (PHM-1) Hydrofoil Program NAVSEA (1974-77) Executive Officer and teacher at the ED School Mare Island (1977-79) USS Kennedy (CV-67) Modified Repeat Ship Design Manager NAVSEA (1979) and Surface Ship Conform Program Manager NA VSEA (1980 to present). A member of ASNE since 1965 he served as Vice-Chairman of the ASNE Golden Gate Section (1978-79) and is also a member of ASME AIAA and Sigma Xi.

A description of the NAVSEA program to develop concepts continually for SURFACE SHIPS for the NAVY OF THE YEAR 2000 and beyond is presented. The process of “Requirement Pull,” “Technology Push,” Concept Synthesis, and Concept Assessment are outlined for a unique program that joins the Technologist and the Ship Designer in a disciplined partnership for the future.

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ADVANCED CONCEPTS IN CHEMICAL PROPULSION systems FOR A 500-TON SUBMERSIBLE

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NAVAL ENGINEERS JOURNAL 1981年第1期93卷 63-75页

作者： URBACH, HB KNAUSS, DT QUANDT, ER Dr. Herman B. Urbach:received his B.A. degree in Chemistry from Indiana University in 1948 his M.A. degree in Physical Chemistry from Columbia University in 1950 his Ph.D. degree in Physical Chemistry from Case-Western Reserve University in 1953 and his M.S. degree in Mechanical Engineering from The George Washington University in 1976. After receiving his doctorate he was employed by Olin Mathieson Corporation Niagara Falls N. Y. as a Group Leader and Research Chemist on rocket fuels borane chemistry and the reactions of oxygen atoms with ozone. In 1959 he joined the United Technology Research Laboratories East Hartford Conn. as a Senior Research Scientist working in the area of fuel cells and electrochemistry. Presently he is a Scientific Staff Assistant in the Power Systems Division David W. Taylor Naval Ship Research and Development Center where since 1965 he has performed research and development studies on fuel cells gas turbines biphase turbines and MHD systems. Additionally Dr. Urbach was a Consultant to the Artificial Heart Program of the National Heart and Lung Institute NIH and presently is a member of the New York Academy of Science Sigma Xi American Chemical Society Electrochemical Society American Institute of Aeronautics and Astronautics and the American Society of Mechanical Engineers. Dr. Donald T. Knauss:received his B.S. degree in Mechanical Engineering from Duke University in 1956 at which time he took employment with the NASA Lewis Research Center Cleveland Ohio. Here he was involved with aircraft propulsion innovations until his entry into military service with the U.S. Air Force. After completing work toward his M.S.M.E. degree at Purdue University in 1962 he was employed by Battelle Memorial Institute Columbia Ohio where he was involved in a variety of projects related to Fluid and Thermal Mechanics. He was later employed by the Ballistic Research Laboratories Aberdeen Proving Ground Md. where he contributed to studies of the physical gas dynamics of hypers

Alternative advanced power systems designed to operate a 500-ton submersible have been examined with respect to overall weight and volume fractions. Two-week and one-month missions, with and without the conventional “at-sea” recharge capability, were considered to evaluate the impact of advanced technologies on non-nuclear submarine design. Candidate air-breathing, primary-power systems studied included Diesel, Closed-Brayton Cycle (CBC), and fuel cells. A number of options for underwater operation were based upon high-energy reactants replenlshable from Base supplies. Another set of options was considered based upon using JP-S fuel with “at-sea” rechargeable secondary power systems, including thermal-energy storage, advanced lithium-sulfur batteries, or flywheels. Replenlshable high-energy reactant systems were, on average, lower in weight and volume than the rechargeable systems for the same submerged-mission profile. Moreover, the replenlshable systems permitted an extended tactical encounter with a maximum duration of 8 to 17 hours at speeds of 30 knots without the need to resurface and recharge a secondary energy storage device. The lowest-weight rechargeable systems in the order of increasing weight were the CBC engine with advanced lithium-sulfur battery, the CBC engine with carbon-block (thermal energy storage), and the Diesel engine with advanced lithium-sulfur battery. The rechargeable systems required unacceptable weight fractions in both missions. The high-energy (replenlshable from Base supplies) systems, with the exception of the heavy acid fuel cell using LOX, were all acceptable candidates for application in the two-week mission. Only the CBC engine with a llthium-sulfurhexaflaoride heat source, the lowest-weight system in both mission groups, was acceptable for the one-month mission.

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SHIP DESIGN AND THE NAVY LABORATORY

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NAVAL ENGINEERS JOURNAL 1981年第2期93卷 33-46页

作者： ELLSWORTH, WM CLARK, DJ Mr. William M. Ellsworth:is graduate of the State University of Iowa from which he received B.S. and M.S. degrees in Engineering majoring in Fluid Mechanics. Upon graduation in 1948 he joined the Staff of the David Taylor Model Basin (DTMB) and during the following ten years held various positions in the Hydromechanics Laboratory. In 1958 he left his position as Head of the Towing Problems Branch and joined Cleveland Pneumatic Industries which later became Pneumo Dynamics Corporation (PDC). He was General Manager of PDC's Systems Engineering Division and in 1961 became a corporate Vice President. In 1964 he returned to DTMB where he became the Technical Manager of the Hydrofoil Development Program Office. In October 1969 he was appointed to his present position of Associate Technical Director for Systems Development and Head Systems Development Department David W. Taylor Naval Ship Research and Development Center. He is a licensed Professional Engineer in the state of Maryland an Honorary Life Member of ASNE and a Fellow of ASME. He also has been the author of a number of papers and reports in the field of Naval Engineering and has served as a member of the ASNE Council from 1972 to 1974 was a member of the ASNE Flagship Section Council (1977-80) and is currently a member of the ASNE Honors and Awards Committee. He became a member of ASNE in 1960 and received his Honorary Life Membership when he was awarded the ASNE Gold Medal for 1973 at ASNE Day 1974. Dennis J. Clark:received his Bachelor's degree in Civil Engineering from City College of New York in 1963. Upon graduating he joined DTMB's Structural Mechanics Laboratory where he worked on a number of full-scale trials of surface ships evaluating the structural integrity of icebreakers sonar domes and Hydrofoils. He eventually was responsible for the entire structural research program in support of the Hydrofoil Advanced Development Office and in 1971 joined the Hydrofoil Program Office as the Manager of Systems Integration. In that capacity he

In today's environment of rapidly escalating costs, increasing technological complexity, and growing threat, we must actively seek ways to improve our effectiveness in applying limited resources to the design of Navy ships. One important aspect of this process involves the development and application of new technology to ship design. An exhaustive treatment of this subject is clearly beyond the scope of a single technical paper. It is the Authors' objective, however, to acquaint the reader with the nature and role of the Navy's Laboratory Community in general and DTNSRDC in particular; to examine some recent initiatives taken at DTNSRDC and some key issues; and, hopefully, to contribute in some small way to the building of a stronger constructive partnership between ship development and design activities. The view is that from the perspective of a Navy Laboratory and pertains to the design of the ship itself as opposed to the weapons system.

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