作者：
DOLAN, JOHN W.REAR ADMIRALTHE AUTHOR graduated from the U. S. Naval Academy in June 1939 and was commissioned Ensign. He subsequently advanced in rank
attaining that of Rear Admiral to date from January 1 1967. His first assignment was aboard the USS PENSACOLA the heavy cruiser operating in the Pacific when the U. S. entered World War II. Detached from the PENSACOLA in May 1942 he received postgraduate instruction in naval architecture and marine engineering at M. I. T. where he earned his M. S. degree in 1944. Designated for Engineering Duty Only in that year he was assigned in November to the Philadelphia Naval Shipyard to serve in connection with aircraft carrier construction and ship repair until November 1946. The next month he joined the Staff of Commander Service Force U.S. Pacific as Fleet Maintenance Officer and in August 1949 reported as Production Assistant to the Director of the Ship Technical Division Bureau of Ships Navy Department. He was Assistant Repair Superintendent at the Charleston (South Carolina) Naval Shipyard for a two-year period ending in July 1956 after which time he attended the Naval War College Newport Rhode Island. Completing the course in June 1957 he was assigned to Puget Sound (Washington) Naval Shipyard. In August 1960 he became Shipbuilding Assistant to the Assistant Chief of the Bureau of Ships for Design Shipbuilding and Fleet Maintenance Navy Department and in April 1963 was detached for duty as Commander San Francisco Naval Shipyard. In December 1965 he assumed command of the Long Beach Naval Shipyard and in October 1967 reported as Fleet Maintenance Officer/Assistant Chief of Staff for Maintenance and Logistic Plans Staff Commander in Chief U. S. Atlantic Fleet. He also held the additional duty as Maintenance Officer Staff Commander in Chief Atlantic and Commander in Chief Western Atlantic. In August 1969 he was ordered for his present duty as Deputy Commander for Field Activities Program Director for Shipyard Modernization and Management Naval Ships Sy
The U. S. Naval Shipyards are a tremendous industrial capability, of irreplaceable value to the Fleet. Their specific capabilities have been tailored to meet the needs of a changing mix of ship types that make up the ...
For reliability of electrical shipboard equipment prediction and evaluation, the data on failure rates of parts and equipment is required. Maintenance Data Collection System (MDCS) contains maintenance data which, wit...
For reliability of electrical shipboard equipment prediction and evaluation, the data on failure rates of parts and equipment is required. Maintenance Data Collection System (MDCS) contains maintenance data which, with certain limitations, may be ultilized for derivation of the data on electromechanical equipment for reliability evaluation and prediction. This paper presents a method of utilization of MDCS for reliability purposes.
Dynamic walking on bipedal robots has evolved from an idea in science fiction to a practical reality. This is due to continued progress in three key areas: a mathematical understanding of locomotion, the computational...
Dynamic walking on bipedal robots has evolved from an idea in science fiction to a practical reality. This is due to continued progress in three key areas: a mathematical understanding of locomotion, the computational ability to encode this mathematics through optimization, and the hardware capable of realizing this understanding in practice. In this context, this review outlines the end-to-end process of methods that have proven effective in the literature for achieving dynamic walking on bipedal robots. We begin by introducing mathematical models of locomotion, from reduced-order models that capture essential walking behaviors to hybrid dynamical systems that encode the full-order continuous dynamics along with discrete foot-strike dynamics. These models form the basis for gait generation via (nonlinear) optimization problems. Finally, models and their generated gaits merge in the context of real-time control, wherein walking behaviors are translated to hardware. The concepts presented are illustrated throughout in simulation, and experimental instantiations on multiple walking platforms are highlighted to demonstrate the ability to realize dynamic walking on bipedal robots that is both agile and efficient.
作者：
SARCHIN, T.H.The Author is head of the Technical Support Section
Ship Concept Design Division of Naval Ship Engineering Center. His group is responsible for conducting special studies relative to design problems and participating in the Ship Systems Command's RDT&E program in the area of ship hydrodynamics. His educational background includes a BS in Aeronautical Engineering from the University of Washington and graduate study at Catholic University and the University of Maryland. He has over 28 years of continuous experience in the Bureau of Ships and is a member of the Society of Naval Architects and Marine Engineers before whom he recently presented a paper on “The Stability of Naval Ships.” He is also a charter member of the ASE and is a registered Professional Engineer in the District of Columbia.
作者：
HANSEN, O. RICHARDUHLER, DALE G.O. Richard Hansen obtained a BSCE from Colorado State University in 1950 and has participated in continuing educational courses at the University of Washington
Wayne State University and the University of Michigan. He was employed at Puget Sound Naval Shipyard for five years as a Mechanical Engineer and Project leader in industrial gases and cryogenic O2. Producers for Shipboard Applications followed by seven years at Chrysler Corporation initially as a project engineer in the FBM program subsequently assigned to Mechanical Laboratory achieving Managing Engineer status of a department therein which contained the facilities group instrumentation group and an experimental machine shop. This was followed by employment at Westinghouse Astronuclear Laboratories as a senior engineer conducting studies in two phase liquid hydrogen flow in simulated NERVA cores. Following this he served two years of employment with the Lockheed Georgia Company conducting material studies in combined nuclear cryogenic environments at the NASA 60 megawatt test reactor located in Sandusky Ohio. Joined NAVSEC in 1966 as a mechanical engineer in the compressed air systems group and has been assigned to the Supervisor of Diving Salvage and Ocean Engineering conducting analysis and evaluation of compressed air and gas systems associated with diving and salvage operations. Dale G. Uhler received BSCE degree from Carnegie Institute of Technology in 1964. He spent two years as a construction engineer before entering graduate school at the University of Miami
Florida where he received his MS degree in applied mechanics with a minor in Ocean Engineering in 1968. He is now employed as an Ocean Engineer in the office of the U. S. Navy Director of Diving Salvage and Ocean Engineering where he is the project manager for the Large Object Salvage System and related development programs and concurrently working toward his Ph. D. at Catholic University.
The advent of deep ocean technology has created a need of buoyancy at ever increasing depths. This paper concerns itself with two most widely used techniques for dewatering/deballasting, compressed air supplied by sur...
作者：
CARLTON, GAG. A. Carlton
graduated from the U.S. Merchant Marine Academy with a B.S. in Marine Engineering. He has served with American Export Lines as an operating engineer on marine steam propulsion plants. From 1959 until 1962 he worked as a project engineer for the Electric Boat Division of General Dynamics. Here he was involved with fluid system design and machinery arrangement for nuclear submarine propulsion plant design and construction. Carlton currently works as a Program Coordinator with the Naval Ship Engineering Center Philadelphia. His responsibilities include gas turbines research development test and evaluation of gas turbine engines and combined power propulsion systems. He has recently been engaged in coordinating the gas turbine testing with Naval Distillate (ND) fuel oil.
This paper discussed the introduction of a new fuel into the Navy, the impact of this new fuel on gas turbine engines and means being taken by the Navy to evaluate this impact. Test methods and techniques for synthesi...
This paper discussed the introduction of a new fuel into the Navy, the impact of this new fuel on gas turbine engines and means being taken by the Navy to evaluate this impact. Test methods and techniques for synthesizing some of the fuel characteristics and a comparison of current U.S. Navy fuel oils are presented. Over the past few years, there has been a rising interest in the U. S. Navy toward the use of a single distillate type fuel for use in boilers, diesel engines, and gas turbines. There are several reasons for such interest. The ones most commonly mentioned are the potential for decreased maintenance for boilers and the advantage at reducing the fuel storage and supply system by one fuel, thereby simplifying logistics. The supply system now supports two basic distillates JP-5 and “Navy” diesel. The fuel used for boilers is Navy Special Fuel Oil (NSFO) which is approximately a 40–60 blend of distillate-residual fuel. In going to a single distillate, there are many aspects to be carefully weighed in the cost, availability, and military areas. It is not our intent to go into these areas, but rather to discuss the change only in regard to its impact on the gas turbine engine. The one point with regard to economics we will mention is that the cheaper the distillate fuel we will be able to accomodate without increasing our maintenance in diesel and gas turbine engines, the more attractive it will be.
作者：
JONES, RAMr. Robert A. Jones is a Naval Architect in the Deck Systems Branch of the Naval Ship Engineering Center
Hyattsville Md. He holds a Bachelor of Science degree in Mechanical Engineering from the University of Illinois. Upon joining NAVSEC in 1965 he completed the Hull Systems and Weapons Support Division Junior Engineer Training Program and was then assigned to his present position which includes design and system engineering for submersible vehicle mechanical system equipment jettisoning system underwater work tools and submersible vehicle certification. He is a Registered Engineer in Training in the State of Illinois. He is a member of the Marine Technology Society and the Association of Senior Engineers of the Naval Ship Systems Command.
作者：
MULQUIN, JAMES J.USNRTHE AUTHOR:received degrees in Pre-Law (Georgetown Univ.) and Aeronautical Engineering (Catholic Univ.). His active duty in the Navy includes service in submarines during the Korean War
a two-year tour in USS SHADWELL (LSD-15) and participation in naval exercises in the Canadian Arctic and the Caribbean. Following release from active duty he specialized in the research and development of naval weapons systems both with government and private industry. He was previously Marketing Research Manager of Washington Technological Associates Inc. Rockville Maryland involved in the Polaris program underway logistics transfer and a variety of Navy operational analyses. Since joining Naval Air Systems Command (formerly BuWeps) in 1963 he has worked in the field of carrier aircraft operation at sea aircraft launching and recovery systems modularized shipboard aviation support and advanced carrier aviation “survivability” techniques. He is currently the Research and Technology Project Officer for Carrier Test Bed development.
Three abstract optimization problems are presented along with doubly iterative algorithms for their numerical solution. These algorithms are generalizations of particular algorithms described by Barr and Gilbert [19],...
详细信息
Three abstract optimization problems are presented along with doubly iterative algorithms for their numerical solution. These algorithms are generalizations of particular algorithms described by Barr and Gilbert [19], [21] and Fujisawa and Yasuda [22]. The supporting theory is fully developed along with proofs of convergence. Practical aspects of computations are considered and procedures which insure rapid convergence are discussed. Two applications to discrete-time optimal control problems are described.
暂无评论