检索结果-内蒙古大学图书馆

HUB SIZE SELECTION CRITERIA FOR controlLABLE PITCH PROPELLERS AS A MEANS TO ENSURE systems INTEGRITY

NAVAL ENGINEERS JOURNAL 1978年第6期90卷 49-61页

作者： WIND, J The Authoris a citizen of the Netherlands. He studied Aircraft Engineering and Mechanical Engineering at the Delft Institute of Technology from which he received his MS degree in 1955. He began his career as a Research Engineer in the field of Nuclear Engineering employed by VMF—Stork and he holds several U.S. Patents relating to ultra—centrifuges for the separation of Uranium. He was next engaged. in design of control gear for radio astronomy aerials and operating gear for bridges and huge floodgates in the Scheldt and Rhine Delta. Later he became involved in the control of diesel engines and controllable pitch propellers and in 1967 joined LIPS Propeller Works where he developed CP propeller mechanisms solved the problem of high—pressure oil supply to large diameter marine shafts and made an improvement for high—speed propeller nozzles. As Head of the Design Department he was responsible for the design of large controllable pitch propellers for fast Container Ships and Naval Ships with gas turbine drive. Mr. Wind has authored several technical publications among which are “Controllable Pitch Propellers. Their Principles and Mechanisms” and “The Development of CP Propeller Systems.” At the present time he is a Corporate Engineering Consultant to the Propeller Division of LIPS B. V.

In a CP propeller the size of the hub largely influences the reliability of the system in operation. Accurate choice of the hub—size provides the best means to prevent the system from structural propeller failures and is therefore the best method to ensure reliability and optimized performance. Recent failures of high—power CP propellers, of which one Navy propeller had a serious mission failure, could have been avoided if a larger hub had been adopted. The paper contains two tools, available also to nonspecialists. One allows clear recognition of the technical degree of difficulty of all types of propellers and the other is a scale to determine the degree of load of each CP propeller hub. Information is given concerning the influence of the hub/diameter ratio on the hydrodynamic performance.

关键词：

来源：评论

学校读者我要写书评

暂无评论

A DYNAMIC ANALYSIS OF A COGAS PROPULSION PLANT

引用

Naval Engineers Journal 1977年第6期89卷 19-34页

作者： ABBOTT, JACK W. McINTIRE, JOHN G. RUBIS, C. JOSEPH Mr. Jack W. Abbott:is Head of the Systems Engineering and Analysis Branch Ship Design Division Naval Ship Engineering Center. He received his BSME degree from Stanford University in 1960 and his ME A degree from The George Washington University in 1975. He is a Lieutenant Commander USNR (Ret.) having served during his active duty period as Engineering Officer aboard a U. S. destroyer for 3 years and also a registered Professional Engineer in the State of California. In addition to holding several U.S. Patents he annually instructs courses in the Design of Naval Surface Ships at the Massachusetts Institute of Technology including the concept of total energy systems. He is a member of SNAME and has been a member of ASNE and a frequent contributor to the Journal since 1966 most recently having been a co—recipient of the “Jimmie Hamilton” Award for the best paper published in 1976. Mr. John G. Mclntire:received his BS and MS degrees from the University of California at Berkeley where he did his graduate studies in the field of Automatic Control Systems Design. He was employed by the Naval Ship Engineering Center in 1971 as a Mechanical Engineer and is currently serving as Acting Head of the Machinery Control Systems Section Machinery Systems Division. He is a member of the NA VAIR/NA VSEA Association of Scientists and Engineers the American Society of Mechanical Engineers and the National Society of Professional Engineers. Mr. C. Joseph Rubls:isPresident of Propulsion Dynamics Inc. Annapolis Md. where he is engaged in simulation and analytical studies of ship propulsion and automation systems. Previous to his present position he was a Scientific Consultant and Head of the Control Systems Branch David W. Taylor Naval Ship Research & Development Center Annapolis Laboratory where he was employed over a 10–year period. His other employment experience includes the Martin—Marietta Company as Senior Systems Engineer for Guidance Radar and for Communications Systems the U.S. Naval Academy American Universi

The paper provides a dynamic analysis of a COGAS Propulsion Plant, including mathematical modeling and simulation, and concludes with the results of a COGAS simulation which indicates encouraging conclusions regarding...

关键词：

来源：评论

学校读者我要写书评

暂无评论

BANQUET ADDRESS - BUILT-IN COMBAT READINESS - APPROACH TO FUTURE SHIP DESIGN

引用

NAVAL ENGINEERS JOURNAL 1976年第3期88卷 40-43页

作者： MARCY, HT The Honorable H. Tyler (“Ty”) Marcy:was born in 1918 in Rochester New York but moved to Baltimore Maryland at an early age where he attended public schools. He is a graduate of the Massachusetts Institute of Technology from which he received both his BS and MS degrees in Electrical Engineering. Subsequent to receiving the latter degree in 1941 he designed and developed gun control systems in the MIT Servomechanism Laboratory until 1946 when he became Associate Director Special Projects Department M. W. Kellogg Company and worked on rocket engine development missile controls and analog air defense systems. In 1951 Mr. Marcy left Kellogg Company to join the IBM Corporation where he remained until 1972 and was employed in various engineering and managerial positions. At IBM his first assignment concerned the bomb/navigational system for the B-52 aircraft. He then moved into commercial development of data processing machines and peripheral devices subsequently being placed in a series of technical management positions which included Assistant Manager of Product Development Corporate Headquarters New York (1956) Manager Poughkeepsie N.Y. Laboratory (1957) Vice-President General Products Division (1962) Vice-President Systems Development Division (1965) and Director of Technology Corporate Headquarters Armonk N. Y. (1968). His last position was held until 1972 when he left IBM to do private consulting work in engineering management technology and program review. In October 1974 he was appointed by the President to his present office as Assistant Secretary of the Navy for Research and Development. Mr. Marcy has been a member of the Instrument Society of America since 1963 serving as its President from 1971 until 1974. In 1967 he became a Fellow of the Institute of Electrical and Electronic Engineers (IEEE) for his leadership in feedback control and for his significant contribution to the management of technical enterprise. In addition to these professional organizations he is also a member of the

来源：评论

学校读者我要写书评

暂无评论

THE NAVAL SHIP research AND development CENTER ADVANCED STRUCTURE FACILITYxs

引用

Naval Engineers Journal 1973年第1期85卷 43-49页

作者： BECKER, LOUIS A. SIEGRIST, FRANKLIN I. Louis A. Becker was born in New Rochelle N.Y. in 1930 receiving his earlier education in the New Rochelle Public Schools. He completed his undergraduate studies at Manhattan College in 1952 receiving his BCE degree during which time he was also engaged in land surveying. Following this he did postgraduate study at Virginia Polytechnic Institute obtaining his MS in 1954. He joined Naval Ship Research and Development Center in 1953 as a Junior Engineer and is currently the Head of the Engineering & Facilities Division Structures Department. His field of specialization is Structural Research and Development. Franklin I. Siegrist was born in Knoxville Tenn. in 1937 receiving his earlier education in the Public Schools of Erie Pa. He attended Pennsylvania State University graduating in 1962 with a Bachelor of Science degree in Electrical Engineering having prior to that time served four years in the U. S. Navy. He was a Junior Engineer in the AC Spark Plug Division of General Motors from 1962 until 1964 at which time he came to the David Taylor Model Basin as an Electrical Engineer in the Industrial Department. He is currently Supervisory Engineer for Electrical and Electronics Engineering Structures Department Naval Ship Research and Development Center. His field of specialization is Electrical Engineering Control Systems Data Collection Systems Computer Applications to Structural Research and Hydraulic System Design. In the last of these he holds Patent Rights on a “Hydraulic Supercharge and Cooling Circuit” granted in 1970.

来源：评论

学校读者我要写书评

暂无评论

SEQUENCE control OF ANALOG-COMPUTERS

引用

PROCEEDINGS OF THE INSTITUTION OF ELECTRICAL ENGINEERS-LONDON 1972年第10期119卷 1505-&页

作者： BARNEY, GC MILLER, D Research & Development Department Pilkington Brothers Ltd. St. Helens UK Control Systems Centre University of Manchester Institute of Science & Technology Manchester UK

Parallel-logic programming of analogue computers often presents difficulties to all but the most experienced users. The paper describes an inexpensive method of simplifying the control of iterative problem solutions run on parallel-logic analogue computers by employing a special-purpose sequence controller. The controller stores up to 16 64 bit words, which are transferred in sequence to an output buffer. Most of the bits within each word form the control signals for analogue components. This is mechanised by connections from the controller-output buffer to the analogue-component control lines via an existing parallel-logic patchboard. Conditional (i.e. comparator-controlled) operations and manual control (using logic switches) are possible with only a limited number of analogue components. A compiler for a digital computer enables the user to define the modes and states of analogue components as a sequence of events in time. These events, and the periods of time between them, may be defined by a list of digital-program-source statements, or, conversationally, by replying to questions typed at the user's teleprinter. Either form of input is compiled into the sequence-controller machine code, which is then loaded into the controller memory ready for execution.

关键词： controllers parallel logic programming iterative problem solutions analogue computers sequence controller Analogue and hybrid computers and systems

来源：评论

学校读者我要写书评

暂无评论

On linear stochastic differential games with non-linear and noisy information

引用

International Journal of systems Science 1972年第4期2卷 421-425页

作者： Raja Rao, B.V. Indian Institute of Technology New Delhi 29 India Control Systems Analysis and Development Department Research and Development Laboratories Pilkington Brothers Limited St. Helens Lancashire United Kingdom

The paper presents some of the results for computing the optimal strategies for a, two-player, zero-sum differential game subject to quadratic cost functional. Each player is assumed to have imperfect information of the strategies of his opponent. The system dynamics are taken to be linear but the measurements are assumed to be non-linear. The resulting optimal minimax stochastic control problem involves the solution of combined optimal control and stochastic estimation problems. Sub-optimal solutions are derived by approximating the measurement non-linear functions by second-order stochastic approximation technique. Some of the recent results in non-linear estimation and control theories are utilized in deriving the optimal strategies. © 1972 Taylor & Francis Group, LLC.

关键词：

来源：评论

学校读者我要写书评

暂无评论

NEAR-OPTIMAL control OF DISCRETE-TIME NONLINEAR STOCHASTIC systems

引用

PROCEEDINGS OF THE INSTITUTION OF ELECTRICAL ENGINEERS-LONDON 1971年第5期118卷 709-&页

作者： RAO, BVR MAHALANA.AK Department of Electrical Engineering Indian Institute of Technology New Delhi India Control Systems Department Research & Development Group Pilkington Bros. Ltd. St. Helens UK

The problem of finding a nonrandomised control law that minimises an instantaneous index for a nonlinear discrete-time stochastic system is considered. Both the state and observation equations are taken to be nonlinear, and the optimisation index is chosen to be the variance of the control error. Some of the recent results in nonlinear estimation theory are utilised for deriving approximations to the optimal-control law. The results are illustrated with the help of numerical examples.

关键词： optimal control law approximation nonlinear estimation theory discrete time systems nonrandomised control law Time-varying control systems time varying parameters stochastic systems instantaneous index minimisation control error variance near optimal control Optimal control state observation equations optimisation index estimation theory optimal control nonlinear systems sampled data systems Nonlinear control systems Discrete control systems

来源：评论

学校读者我要写书评

暂无评论

Digital simulation of paper machine dynamics

引用

Simulation 1966年第N 4期v 6卷 p228-237页

作者： Sullivan, P.R. Schoeffler, J.D. Control Systems Development Center IBM Corporation San Jose California Control Systems Development Center IBM Corporation as consultant from Systems Research Center Case Institute of Technology Cleveland Ohio

Technique for simulation in block-diagram form of stock preparation and Fourdrinier dynamics, which is flexible, convenient, and detailed enough to allow user to study physical process modifications and transient response during upsets and "furnish" (fibers with different characteristics, fillers, dyes, etc) changes and to evaluate simplified mathematical models and control schemes;complete wet-end configuration, including white-water recovery system, is simulated using technique described, and typical results obtained during grade changes and disturbances are presented.

关键词： Paper machinery

来源：评论

学校读者我要写书评

暂无评论

A NEW HIGH‐PRECISION, UNIVERSAL‐FREQUENCY COMPUTER COMPONENT

引用

Journal of the American Society for Naval Engineers 1950年第2期62卷 325-338页

作者： HERR, DONALD BLUMENSTOCK, NORMAN HONORARY MEMBER THE AUTHORS MR. HERR Honorary Member of the A.S.N.E. has the B.S. in E.E. M.S. in E.E. and E.E. degrees. He was National Coffin Foundation Fellow of the General Electric Company National Tau Beta Pi Fellow and National Sigma Tau Fellow at the Moore School of Electrical Engineering University of Pennsylvania and at M.I.T. prior to World War II. He was also awarded a National Gordon McKay Fellowship by Harvard University and received the A. Atwater Kent Award in Electrical Engineering from the University of Pennsylvania. A licensed radio amateur at 12 Mr. Herr first worked summers at RCA and Bell Laboratories and was with the General Electric Company in 1939 and 1940 as development engineer before volunteering for over five years of active Naval duty. He served as Officer-in-Charge Electrical Minesweeping Group Bureau of Ships December 1940 to April 1943 as Acting Design Superintendent and Officer-in-Charge Los Angeles-Long Beach Harbor Surge Investigation U. S. Naval Shipyard Terminal Island to November 1944 and as Research-Patents Liaison Officer Office of Naval Research to January 1946 returning to inactive duty as lieutenant commander U.S.N.R. Mr. Herr received two Navy letters of commendation. Since 1946 he was assistant to vice president in charge of the engineering division of Control Instrument Company Brooklyn New York and is project engineer at the Reeves Instrument Corporation responsible for new servo and computer component developments. Mr. Herr has been associated with Dean Harold Pender and Professor Ernst Guillemin in advanced network theory and has specialized for 12 years in development and design of servomechanisms differential analyzers computers and fire control systems utilizing advanced network analysis and synthesis methods. Mr. Herr is also presently teaching servomechanisms network-synthesis and feedback amplifier design in the Graduate School of the Polytechnic Institute of Brooklyn. He has contributed frequently to the JOURNAL OF THE AMERICA

来源：评论

学校读者我要写书评

暂无评论

Mathematical derivation of destroyer-type hulls

引用

Naval Engineers Journal 1967年第N 1期v 79卷 p19-28页

作者： Taggart, R. Magnusson, E.F. Mr. Robert Taggart graduated from Webb Institute of Naval Architecture in 1942 with a Bachelor of Science in Naval Architecture and Marine Engineering. He has been employed by the Maritime Commission. the Naval Research Laboratory the Army Transportation Corps the Bureau of Ships Reed Research Inc. and served as a Naval Officer during World War II. In 1958 he formed Robert Taggart Incorporated. He has been engaged in research and development work for the past twenty years all of which has been related to naval engineering and oceanography. Among his publications are reports papers and articles on side launching calculations ship standardization and fuel economy trials maneuvering trials hull form studies development of underwater acoustic facilities noise control of submarines and mine sweepers ambient noise surveys underwater missiles barge and tug design utilization of ships for research the development of ship propulsion systems for the dynamic positioning of ships on the ocean surface. Mr. Magnusson is a Senior at Miami University Oxford Ohio. He is a candidate for a degree of Bachelor of Arts in Mathematics and is majoring in the application of computers to engineering problems. Between school terms he has been employed by the architectural firm of Patton-Kelly and Associates by the Science Information Exchange of the Smithsonian Institute and by Robert Taggart Incorporated.

Results of regression analysis for sample consisting of some 233 individual resistance tests of destroyer-type hull forms;by using hull form parameters derived from Todd multiple regression analysis it is feasible to produce mathematical hull form which matches exactly each of input parameters;using digital computer for calculations, results can be presented so that draftsman can develop model lines drawing without any additional fairing.

关键词： Ships

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：