检索结果-内蒙古大学图书馆

HEAT-TRANSFER STUDIES ON A ROCKET NOZZLE FOR NAVAL APPLICATION

NAVAL ENGINEERS JOURNAL 1988年第1期100卷 29-35页

作者： DAS, DK MOORE, GR BOYER, CT Dr. Debendra K. Das:is assistant professor of mechanical engineering at the University of Alaska-Fairbanks. A graduate of Sambalpur University India (BS) 1972 Brown University Rhode Island (MS) 1974 and University of Rhode Island (Ph.D.) 1983 Dr. Das is a registered professional engineer in Rhode Island. He was formerly employed at the Naval Surface Weapons Center Dahlgren Virginia where he performed studies on rocket nozzles and aerodynamic heating for the Navy's missile program. Dr. Glen R. Moore:received his B.S. degree in mechanical engineering from Wichita State University in 1967 and his M.S. and Ph.D. degrees in mechanical engineering from Arizona State University in 1969 and 1971. Since 1971 he has been employed by the Naval Surface Weapons Center Dahlgren Virginia. He has been extensively involved in the analysis and testing of Navy gun and missile system launch environments and their effects on personnel equipment and ships. Dr. Moore has authored numerous reports and papers on gun blast and rocket motor plume environments. He is currently a member of the JANNAF Exhaust Plume Technology Subcommittee. Dr. Charles T. Boyer:received his B.S. M.S. and Ph.D. degrees from Virginia Polytechnic Institute and State University in 1969 1971 and 1984. He served as an intelligence officer and battery commander in the U.S. Army from 1971 until 1973 in Germany. Since 1974 he has worked at the Naval Surface Weapons Center Dahlgren Virginia. He was involved with the analysis and design of gun propelling charge assemblies and with the analysis and measurement of heat transfer from these charge assemblies to the gun bore from 1974 through 1980. Since 1980 he has analyzed and measured the heat transfer from rocket exhaust plumes to ablators used to protect ships and their equipment. He has also analyzed the in-depth heat transfer in these ablators. Currently Dr. Boyer is the project manager for the generic booster/vertical launching system compatibility test program. He has authored numerous reports and p

Heat transfer results are presented here for a rocket nozzle that uses aluminized solid propellant. The Solid Performance Computer program (SPP) was employed to calculate the two-dimensional, two-phase flow properties inside the nozzle. Utilizing the properties of particle phase obtained from this program, calculations were made for the heat flux due to particle impingement. Predictions are also presented for convective and radiative heat transfer along the nozzle surface. A comparison was made to assess the magnitudes of various modes of heat transfer. The methodology and results presented in this paper should provide useful data to designers of new rocket nozzles and should aid studies to improve the design of existing nozzles.

关键词： HEAT TRANSFER

来源：评论

学校读者我要写书评

暂无评论

THE IMPACT OF ELECTROMAGNETIC engineering ON WARSHIP DESIGN

引用

NAVAL ENGINEERS JOURNAL 1987年第3期99卷 210-217页

作者： OREM, JB The authoris currently group technical director at Advanced Technology Inc. where he is engaged in system engineering and ship design programs. A graduate of the U.S. Naval Academy in 1951 he served in various surface assignments until attending MIT in 1955. Subsequent to becoming an engineering duty officer he served in naval shipyards afloat engineering ship design and fleet ship salvage billets. He directed the preliminary design of FFG-7 and later served as project technical director. Subsequent tours included duty as project manager nuclear cruiser acquisitions and assistant to the deputy under secretary of defense (acquisition). Upon retirement he joined Sun Shipbuilding and Dry dock Company serving as V. P. program management and V. P. engineering. His education includes a B. S. from the U.S. Naval Academy and an M. S. in naval architecture and marine engineering and a naval engineer's degree from MIT in 1958.

In recent years, the expanding use of electromagnetic systems in warships has created significant problems. Mutually antagonistic systems degrade intended performance and serious safety problems have been created. The environmental effects produced by these systems must be considered in the mainstream of the warship design process. systems engineering considerations using specific examples will show the potential impact on warship design considerations not normally considered. In addition, electromagnetic engineering considerations are proposed for impact on specific ship specification sections.

关键词：

来源：评论

学校读者我要写书评

暂无评论

REDUCTION METHOD OF TRACKING ERRORS DUE TO MULTIPATH WAVES IN DIRECT SEQUENCE SPREAD SPECTRUM systemS.

引用

Electronics and Communications in Japan, Part I: Communications (English translation of Denshi Tsushin Gakkai Ronbunshi) 1987年第9期70卷 118-126页

作者： Maruyama, Satoshi Iwanami, Yasunori Ikeda, Tetsuo Faculty of Engineering Nagoya Institute of Technology Nagoya Japan 486 Satoshi Maruyama graduated 1983 Dept. Electrical Eng. Fac. Eng. Nagoya Inst. Technology. Completed Master's program 1985 Grad. School and affiliated with Fujitsu Co. Engaged in researches in distance measurement by spread spectrum technique. Tetsuo Ikeda graduated 1961 Dept. Comm. Eng. Fac. Eng. Tohoku University. Completed doctoral program 1966 Grad. School. Assistant 1966 and Assoc. Prof. 1968 Fac. Eng. Tohoku University. Assoc. Prof. 1973 and Prof. 1977 Nagoya Inst. Technology. Engaged in researches in network theory computer networks communication system and electromagnetic environment. Doctor of Eng. Member I.E.E.E. Japan TV Soc. Jap. Inf. Proc. Soc. Jap. Soc. Inf. Comm. and I.E.E.E.

The spread spectrum (SS) communication is a communication system which has excellent characteristics against noise and is suited to the code-division multiplex. This paper describes a method which reduces the tracking phase error in DLL due to multipath waves in SS communication system. The method is based on the model with a single multipath wave.

关键词： RADIO TRANSMISSION

来源：评论

学校读者我要写书评

暂无评论

THE ROLE OF PERFORMANCE ANALYSIS IN THE LIFE-CYCLE OF A WEAPONS system

引用

NAVAL ENGINEERS JOURNAL 1987年第3期99卷 239-248页

作者： BAILEY, JL The authoris an operations research analyst in the Systems Engineering Branch Aegis Ship Combat Systems Division at the Naval Surface Weapons Center (NSWC). Dr. Bailey received a B. S. degree in mathematics from the Massachusetts Institute of Technology in 1964 a Ph.D. in mathematics from the University of Tennessee in 1968 and an M. S. in computer science from the Virginia Polytechnic Institute and State University in 1975. He was an assistant professor of mathematics at the University of Tennessee during the 1968-69 academic year then came to NSWC/Dahlgren in September 1969. He worked as an operations research analyst in mine warfare from 1969 to 1978 specializing in minefield planning. He headed the group which developed the minefield planning module of the Mine Warfare Trainer which was delivered to the Fleet and Mine Warfare Training Center in 1978-79. Dr. Bailey served as science advisor to the commander Mine Warfare Command in 1978-79 under the sponsorship of the Navy Science Assistance Program. In 1979-80 he led the development of military value assessment methodology for a ship survivability improvement program. In 1980 he moved to the Aegis Ship Combat Systems Division becoming leader of the Systems Performance Assessment Group in 1981. Dr. Bailey leads a group of analysts who do assessment of the predicted performance of the Aegis combat system and the effects of proposed changes to the system. Dr. Bailey has also served collateral duty as systems analysis manager for the Technical Division of the Aegis Project Office (PMS-400) in the Naval Sea Systems Command since 1981.

Performance analysis is the process of determining the predicted performance of a weapons system. It is generally used to examine predicted performance of systems in a variety of configurations and operational situations; it is accomplished through a variety of techniques, from the computation of straightforward algebraic functions to complex computer simulations. Performance analysis is necessary throughout the life-cycle of weapons systems. It is used to help determine original requirements, for conceptual and detailed design, and to support operational planning and determine upgrade requirements. The development, maintenance, and consistent application of a set of system specific performance analysis methods have enhanced the development of many weapons systems. This paper is in the form of a tutorial on the application of performance analysis techniques, using the development of the Aegis weapons system as a source of examples, and stressing the value of performance analysis methods which have been designed specifically for the Aegis system.

关键词： MILITARY EQUIPMENT

来源：评论

学校读者我要写书评

暂无评论

ELECTROMAGNETIC ENVIRONMENT engineering - A SOLUTION TO THE EMI PANDEMIC

引用

NAVAL ENGINEERS JOURNAL 1987年第3期99卷 202-209页

作者： GRICH, RJ BRUNINGA, RE RAdm. Richard J. Grich USN:was commissioned from Officers Candidate School in May 1953 after receiving a B. S. in electrical engineering from Catholic University and a masters degree from Columbia University in New York. He has served as engineering officer USS Paul Revere (APA-248) as ship superintendent at the New York Naval Shipyard and as assistant material officer on the staff of Commander Naval Air Force Atlantic Fleet. He has a distinguished background as an engineering duty officer in engineering electronics. He has served as the head of the Operations Department on the IN-SURV Board and was assigned as head Logistics Branch Navy Division Defense Attache's Office Saigon Vietnam. For six years he was project manager for the Nimitz class carrier acquisition program PMS-392 at the Naval Sea Systems Command. During this tour he was responsible for the construction and delivery of USS Nimitz (CVN-68) and USS Dwight D. Eisenhower (CVN-69) and the construction through launching of USS Carl Vinson (CVN-70). He also consolidated the VSTOL support ship project into PMS-392 and developed the Service Life Extension Program for USS Saratoga (CV-60). During his subsequent tour he was supervisor of shipbuilding converson and repair in Pascagoula MS. He is presently serving as the assistant commander for acquisition and logistic planning at the Space and Naval Warfare Systems Command. He is a member of ASNE. Cdr. Robert E. Bruninga USN: was graduated from the Georgia Institute of Technology in 1970 with a B. S. degree in electrical engineering. After attending the United States Naval Postgraduate School Monterey where he received his M. S. degree in electrical engineering he was assigned as the assistant weapons instrumentation officer on USS Observation Island (AG-154). Later while serving on the Commander Service Group Three staff in Sasebo Japan he was selected as an engineering duty officer (ED). He has served at the Supervisor of Shipbuilding Conversion and Repair Brooklyn as ship superintendent

There are severe electromagnetic interference (EMI) problems which are pandemic throughout the fleet with both known and unknown impact on the operational performance of ships. This paper suggests that the key solution to the EMI pandemic is to develop an engineering discipline in electromagnetics (EM) comparable to the stature of naval architecture and marine engineering to embed EM design considerations and tradeoffs throughout the ship and equipment design processes. Such an engineering discipline to electromagnetics, and a Navy management commitment to its implementation, would prevent EMI by allowing the use of engineering budgets, allocations, and margins based on predicted EM fields in optimization and design toward well defined performance requirements. The EM engineering discipline would rely on gathering existing resources, developing new approaches where needed, and implementing new steps in the ship design process to accomplish these objectives: (1) use of improved techniques for EM environment prediction, (2) identification of quantifiable performance measures, (3) developing the body of knowledge and traceability between performance and EM effects, (4) selection of ship and equipment design features based on EM considerations, and (5) iteration of the ship design based on EM results.

关键词： ELECTRONIC EQUIPMENT

来源：评论

学校读者我要写书评

暂无评论

ELECTRONIC MODULE DESIGN EVALUATION BY THERMAL IMAGING ANALYSIS

引用

NAVAL ENGINEERS JOURNAL 1986年第3期98卷 151-156页

作者： HOFFER, KO SHAW, TW ROBERTSON, LD Kip O. Hoffergraduated from Purdue University with a B.S.M.E. degree in 1979 and currently works on thermal analysis projects for the standard electronic module program. Thomas W. Shawgraduated from the Indiana Institute of Technology in Ft. Wayne Indiana with a B.S.E.E. degree in 1971. He has worked as liaison engineer for the Strategic Programs Office on Trident 1 guidance system components and most recently as a reliability engineer for the standard electronic module program. Mr. Shaw's previous experience includes reliability engineering for NAVAIR programs. Larry D. Robertsongraduated from Purdue University with a B.S.E.E. degree in 1973. He worked as test engineer on the qualification program for the standard electronic module program and is currently supervisory engineer of the Engineering Services Section for the SEM program.

Thermal imaging (or thermography) is a noncontact measurement technique which can determine the temperature of an object by measuring the amount of infrared radiation generated by the object. Since it is a noncontact method of temperature measurement, thermal imaging is useful in almost any situation where the surfaces to be measured are in motion, electrically hot, changing temperature rapidly or where a contact measurement would tend to upset a thermal balance. This paper reviews the work being done at the Naval Weapons Support Center, Crane, Indiana, in the areas of thermal imaging and thermal design verification of electronic modules.

关键词： THERMOGRAPHY

来源：评论

学校读者我要写书评

暂无评论

COMBAT system INDUSTRIAL-TESTING - MEASUREMENT OF SUCCESS

引用

NAVAL ENGINEERS JOURNAL 1986年第5期98卷 47-57页

作者： TRESSLER, DL HART, JB Dennis L. Tresseler is currently combat system test team leader for the combat systems test and evaluation branch of the Naval Sea Systems Command (SEA 61 × 11). Mr. Tresseler graduated in 1972 with a degree in mechanical engineering technology. He began his career at Newport News Shipbuilding in 1972 where he was a test director responsible for weapon system installation alignment and testing in CGN-36 thru 40 and CVN-68 and 69. In 1977 he came to the Washington area and worked for various contractors in technical and managerial positions before coming to NA VSEA in 1981. He is a member of the Naval Institute and his paper on “FF-1041 Class Modernization” has been accepted for publication in the Proceedings. J.B. Hart is currently the senior program manager combat systems for VSE Corporation headquartered in Alexandria Virginia. He is the program manager for VSE's master ordnance repair (MOR) team. His previous position was with COMPTEK Research Inc. Virginia Beach as senior combat systems engineer. Mr. Hart earned his BS degree from the University of New York in general engineering. He retired as chief ordnance control warrant officer after 22 years of service in 1982. While on active duty he served in various combat systems capacities since 1968 the most noteworthy of which were as ship's combat systems test officer/fire control officer on USS Belknap (CG-26) bringing her back into commission through major reconstruction and as combat system chief onboard USS Albany (CG-10) assisting in test and delivery of the first NTDS model 4.0 software program as well as numerous control systems updates both software and hardware.

This is an overview of the combat system test and certification (CST&C) program as a subset of the total ship test program (TSTP) for active fleet surface ships. The paper will discuss how the T&C program measures not only the suitability of repairs and modifications done during a ship's combat system industrial availability in a public or private yard period, but also the impact that successful program conduct has on the materiel effectiveness throughout a ship's operational cycle. The CST&C management organization and responsibilities, including NAVSEA's master ordnance repair program as well as combat system code 190's relationship to the CST&C program and the impact of pre- and post-industrial testing requirements on the actual conduct of industrial testing will be addressed.

关键词：

来源：评论

学校读者我要写书评

暂无评论

A NAVAL WARFARE DEVELOPMENT SITE

引用

NAVAL ENGINEERS JOURNAL 1986年第1期98卷 25-29页

作者： LANGSTON, MJ POOLE, JR LCDR. Marvin J. Langston USN is presently located in a staff office to RAdm. Wayne E. Meyer USN deputy commander weapons and combat systems. Currently he is working to define battle force system engineering. Prior to that time he served as command & decision and Aegis display system computer program development manager for DDG-51 class development. He spent three years in St. Paul Minnesota as the NA VSEA technical representative working on DDG-993 class combat system testing DDG-2/15 class NTDS development and ACDS concept development. He served as assistant electronic maintenance officer on USS America CV-66. LCdr. Langston has prior enlisted service in nuclear power reactor operation and holds an MSEE from the Naval Postgraduate School and a BSEE from Purdue University. Capt. James R. Poole USN (Ret.) is a 1957 graduate of the United States Naval Academy and has served in a variety of sea and shore billets during his 28 year naval career. Sea assignments included tours in destroyers submarines (conventional fleet and nuclear missile) logistic support ships and USS Norton Sound as commanding officer during at-sea evaluation of the Aegis EDM-1 weapon system. Shore tours at the U.S. Naval Postgraduate School staff COMSUBLANT Aegis Project Office and Aegis Techrep RCA Moorestown N.J. preceded his final active duty assignment as deputy for operations U.S. Naval Academy. Capt. Poole has been a designated WSAM since 1975. He is currently employed by Advanced Technology Incorporated.

来源：评论

学校读者我要写书评

暂无评论

RACER - A DESIGN FOR MAINTAINABILITY

引用

NAVAL ENGINEERS JOURNAL 1985年第5期97卷 139-146页

作者： DONOVAN, MR MATTSON, WS Michael 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 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.

关键词： COGENERATION PLANTS

来源：评论

学校读者我要写书评

暂无评论

AIR-CUSHION LANDING CRAFT NAVIGATION

引用

NAVAL ENGINEERS JOURNAL 1985年第4期97卷 248-260页

作者： GRAHAM, HR KIM, JC BAND, EGU FOWLER, AW Herbert R. Graham:received his degrees of B.S. in 1951 and M.S. in 1958 in aeronautical engineering from the Massachusetts Institute of Technology and the California Institute of Technology respectively. He also attended the Harvard Graduate School of Business Administration. He is presently a task manager at TRW Inc. McLean Virginia responsible for landing craft air cushion (LCAC) engineering support. Since joining TRW in 1967 he has had several technical project management and system engineering responsibilities in amphibious ships transportation and energy. He was responsible for the preliminary engineering design and cost estimates for tracked air cushion vehicles (TACVs). He has been active in several professional societies including ASNE and served as vice-chairman Los Angeles Section American Institute of Aeronautics and Astronautics. John C. Kim:received his degrees of B.S. in electrical engineering Tri-State University 1959 M.S. in electrical engineering Michigan State University 1960 and Ph.D. in electrical engineering Michigan State University. He is presently a senior staff engineer with TRW Inc. McLean Virginia where his technical experience has included communications system engineering and navigation system analysis. Since joining TRW in 1969 he has held numerous positions including section head project manager and department manager. His previous employment includes E-Systems/Melpar Division and Honeywell. Dr. Kim has been active in the IEEE Washington Chapter activities which included secretary vice-chairman and chairman of Systems Science and Cybernetics Group. Edward G.U. Band:received a B.S. degree in mechnical engineering in 1946 and a D.I.C in aeronautical engineering in 1947 at the City and Guilds College of London University. In 1951 he received an M.S. degree from Stevens Institute of Technology in fluid dynamics. After a career in the aircraft industry in England Canada and the U.S.A. he spent several years teaching in Chile and at Webb Institute of Naval Archi

Air cushion vehicles (ACVs) have operated successfully on commercial routes for about twenty years. The routes are normally quite short; the craft are equipped with radar and radio navigation aids and maintain continuous contact with their terminals. Navigation of these craft, therefore, does not present any unusual difficulty. The introduction of air cushion vehicles into military service, however, can present a very different picture, especially when external navigation aids are not available and the craft must navigate by dead reckoning. This paper considers the problems involved when navigating a high-speed air cushion vehicle by dead reckoning in conditions of poor visibility. A method is presented to assess the ACV's navigational capability under these circumstances. A figure of merit is used to determine the sensitivity of factors which affect navigation such as the range of visibility, point-to-point distance, speed, turning radius and accuracy of onboard equipment. The method provides simplistic but adequate answers and can be used effectively to compare the-capability and cost of alternative navigation concepts.

关键词： AIR CUSHION VEHICLES

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：