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Experimental research on Friction of Vehicle Tire rubber

中国高等学校学术文摘·机械工程 2006年第1期1卷 14-20页

作者： GUO Kong-hui ZHUANG Ye CHEN Shih-ken WILLLAM Lin National Key Laboratory for Automobile Dynamic Simulation Jilin UniversityChangchunJilin 130025PRC General Motors R&D Center Warren MI 48090USA

A newly developed tire rubber friction test machine is *** test method of tire rubber is *** data oftire rubber friction on concrete and icy road surfaces are obtained and *** effect of different road *** *** pres sure,and slip velocity on friction coefficient is apprehend *** dynamic friction is introduced to tire semi-empirical *** the accuracy of the model is improved.A way offorecasting tire property on high-rolling speed using data from low-rolling speed tire test is illustrated.

关键词： tire rubber friction test tire model automobile

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Asynchronous Qr-rLS-CMOE Blind Multiuser detection

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Journal of Electronic Science and Technology of China 2005年第2期3卷 130-133页

作者：宋春玲吕明徐洋波 School of Electronic Engineering University of Electronic Science and Technology of China Chengdu 610054 China R&D Center Of Intelligent Control and Simulation Engineering Southwest Jiaotong University Chengdu 610031 China

The Qr-rLS-CMOE algorithm which was applied to synchronous dS/CdMA systems in AWGN channel, is modified and applied to asynchronous dS/CdMA systems in multi-path fading channel in this paper. Computer simulation experiences show that the asynchronous Qr-rLS-CMOE (A-Qr-rLS-CMOE) blind multiuser detection algorithm can well cancel multiple access interference and overcome multipath fading, and has a good anti-near-far effect in the case of τ<

关键词： multiple access interference blind multiuser detection A-Qr-rLS-CMOE CdMA

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Asynchronous Qr-rLS-CMOE Blind Multiuser detection

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Journal of Electronic Science and Technology 2005年第2期000卷 130-133页

作者： SONG Chun-ling U Ming XU Yang-bo School of Electronic Engineering University of Electronic Science and Technology of China Chengdu 610054 China School of Electronic Engineering University of Electronic Science and Technology of China Chengdu 610054 China R&D Center Of Intelligent Control and Simulation Engineering Southwest Jiaotong University Chengdu 610031 China

关键词： multiple access interference blind multiuser detection A-Qr-rLS-CMOE CdMA

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A development of interactive game "Ting Ting" using real and virtual objects

A development of interactive game "Ting Ting" using real and...

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IEEE International Conference on Systems, Man and Cybernetics

作者： Si-Jung Kim Moon-Sung Jang Hong-Sic Kim Tae-Yong Kuc R & D Center Korea Visuals Corporation Seoul South Korea R&D Center Korea Visuals Corporation Gangnam-gu Seoul Korea Intelligent Control & Dynamic Simulation Lab. Sungkyunkwan University Suwon Kyungki-do Korea

ISBN: (纸本)0780385675

This paper presents an interactive virtual reality game using real and virtual objects with general beam projector and computer vision. We show how the computer recognizes the objects and makes the virtual objects move after detecting the real objects in the game space created by a beam projector. To achieve the goals, we developed two methods: find objects distance (FOd) method and find reflection angle (FrA) method. After detecting the real and virtual objects, the methods predict the next moving direction of virtual objects. This interactive virtual reality (Vr) game is named as Ting" which contains various fire-shaped virtual objects and bamboo-shaped real objects. "Ting Ting" game's core technology can be used in various application area as an interactive communication engine. These include but are not limited to, for example, an education game in schools, or an entertainment application in museums and/or science halls.

关键词： Computer vision US department of Transportation Object detection Optical reflection Virtual reality Application software Games digital cameras Object recognition Computer displays

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APPLICATION OFTOPOLOGICAL OPTIMIZATION PrOGrAM TO THE dANNErTEST simulation

APPLICATION OFTOPOLOGICAL OPTIMIZATION PROGRAM TO THE DANNER...

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ASME 2000 International design Engineering Technical Conferences and Computers and Information in Engineering Conference, IdETC-CIE 2000

作者： Mayer, robert r. Maurer, detlev Bottcher, Curd Vehicle Analysis & Dynamics GM R&D Center WarrenMI United States Vehicle Simulation Adam Opel AG Rüsselsheim Germany

ISBN: (纸本)9780791835128

This study used a topological optimization program, TOPOPT, to optimize the crashworthiness performance of a small vehicle in a danner test simulation. The danner test is a low-speed test used by insurance companies to help set insurance premiums. New designs with added holes were developed using TOPOPT, and a procedure for applying the program to future vehicle programs was established. © 2000 by ASME.

关键词： Crashworthiness

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Influence of human engineering on manning levels and human performance on ships

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NAVAL ENGINEErS JOUrNAL 1997年第5期109卷 67-76页

作者： Anderson, dE Oberman, Fr Malone, TB Baker, CC David E. Anderson:has a bachelor of science degree in environmental engineering from Florida Technological University and a master's degree in environmental engineering from the University of Central Florida. He is a graduate of the Naval Sea Systems Command's Engineer-In-Training (EIT) Program. Mr. Anderson was instrumental in introducing the collective protection system (CPS) in the U.S. Navy developing the initial forward-fit package for the USS Gunston Hall and the engineering change proposal (ECP) for the USS Wasp. In 1990 he joined the Human Systems Integration (HSI) Division (SEA 55W5) where he was task leader for auxiliary ships. He is currently the HSI manager for the future technology variant of the SeaLift ship and the future carrier. Association of Scientists and Engineers 33rdAnnual Technical Symposium 26 April 1996. Fred R. Oberman:has B.A. and M.A. degrees from the University of Chicago and Loyola University (experimental psychology) and an M.S. degree in industrial engineering and operations research from Virginia Polytechnic Institute (VPI). He has more than 30 years experience in HSI management planning research analysis design and testing in government and private sector positions. He is currently responsible for NavSea HSI generic research and tool development efforts. He is responsible for Human Engineering Specifications and Standards (Commercial Hypertext) and is the NavSea 03D7 representative on HSI in Performance Specifications and for integration of HSI within Integrated Logistic Support (ILS). He has served as DoD HSI SubTAG chair and member of the Simulation and Modeling Test and Evaluation Display and Control Systems Human Computer Interaction Specifications and Standards and Systems Design Sub Tags as a member of the Society of Naval Architects and Marine Engineers (SNAME) Systems Safety Panel and a member of NATO RSG 14 on man-machine analysis. Thomas B. Malone: CHFEP received a Ph.D. in experimental psychology from Fordham University in 1964. He is president of Carlow

The objectives of Human Engineering (HE) are generally viewed as increasing human performance, reducing human error, enhancing personnel and equipment safety, and reducing training and related personnel costs. There are other benefits that are thoroughly consistent with the direction of the Navy of the future, chief among these is reduction of required numbers of personnel to operate and maintain Navy ships. The Naval research Advisory Committee (NrAC) report on Man-Machine Technology in the Navy estimated that one of the benefits from increased application of man-machine technology to Navy ship design is personnel reduction as well as improving system availability, effectiveness, and safety The objective of this paper is to discuss aspects of the human engineering design of ships and systems that affect manning requirements, and impact human-performance and safety The paper will also discuss how the application of human engineering leads to improved performance, and crew safety, and reduced workload, all of which influence manning levels. Finally, the paper presents a discussion of tools and case studies of good human engineering design practices which reduce manning.

关键词： Human engineering

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A device simulation of the BBT effect in flash memory cells and implications for the development of high-reliability memory cells

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ELECTrONICS ANd COMMUNICATIONS IN JAPAN PArT II-ELECTrONICS 1996年第11期79卷 51-57页

作者： Hayashi, T Fukuda, K Ohno, M Nishi, K Kita, A VLSI R&D Center OKI Electric Industry Company Ltd. Hachioji-shi Japan 193 Graduated from the Science University of Tokyo Dept. of Applied Physics in 1986 and joined Oki Electric. Since then he has been engaged in research on the reliability of MOS transistors and silicon oxide films. Since 1994 he has been engaged in the development of flash memory. He is a member of the Applied Physics Society. Graduated from the University of Tokyo Dept. of Applied Physics in 1983 and joined Oki Electric in 1985. Since then he has been engaged in research on the semiconductor process and device simulation. In 1990 he participated in joint research at the Technical University of Aachen. He is a member of the Applied Physics Society. Graduated from the Tokyo University of Agriculture and Technology Dept. of Electrical Engineering in 1980 and completed an MS course in 1983. In 1986 he completed the doctoral course at Shizuoka University. He then joined Oki Electric where he has been engaged in research on ULSI processes. He is now a manager responsible for flash memory at the VLSI R&D Center. He holds a doctorate in engineering. He is a member of the Applied Physics Society. Graduated from the University of Tokyo Dept. of Applied Physics in 1973 and joined Oki Electric. He was engaged in the development of integrated circuit logic simulation technology and bipolar process technology and since 1980 he has been engaged in research on process/device simulation and modeling. Presently he is a senior manager at the VLSI R&D Center. In 1982–1984 he was a Visiting Scholar at MIT. He holds a doctorate in engineering. He is a member of the Applied Physics Society and a senior member of IEEE. Graduated from Tokyo Institute of Technology Dept. of Chemical Engineering in 1978 and completed the MS program in 1930. In that year he joined Oki Electric. Since then he has been engaged in CMOS process design for DRAM and flash memory. He is now a manager at the VLSI R&D Center. He is a member of the Applied Physics Society.

In order to analyze the BBT (band-to-band tunneling) phenomenon in flash memory cells by simulation, a new model is proposed, which improves on the BBT model by introducing the concept of ''average electric field.'' This model agrees well with the measured results in a wide drain N-concentration range. Using this model, the reliability of memory cells is analyzed. It is found that the difference of the amount of BBT generation does not directly affect the endurance characteristics but does affect the disturb characteristics. The same model can be used to analyze problem points of the present cells and to estimate the BBT current of next-generation devices accurately.

关键词： band-to-band tunneling flash memory simulation endurance characteristics

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ESTIMATION OF STrUCTUrAL SErVICE LIFE OF SHIPS

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NAVAL ENGINEErS JOUrNAL 1989年第3期101卷 156-166页

作者： AYYUB, BM WHITE, GJ PUrCELL, ES P.E. Bilal M. Ayyub:is currently an associate professor of civil engineering at the University of Maryland. He received his B.S. degree in civil engineering from the University of Kuwait in 1980. He completed both his M.S. (1981) and Ph.D. (1983) in civil engineering at the Georgia Institute of Technology. Dr. Ayyub has an extensive background in risk-based analysis and design simulation and construction engineering. He is engaged in research work involving structural reliability bridges marine structures and mathematical modeling using the theories of probability statistics and fuzzy sets. His research work is sponsored by the National Transportation Safety Board the National Science Foundation the U.S. Coast Guard the State of Maryland and the University of Maryland. Dr. Ayyub is a member of ASNE the American Society of Civil Engineers (ASCE) the American Concrete Institute (ACI) the Committee on Forensic Engineering of ASCE and the Committee on Structural Safety of ACI. He is the author of more than three dozen publications in national and international journals conference proceedings and reports. Dr. Ayyub received the ASNE “Jimmie” Hamilton Award for 1985 and the ASCE “Outstanding Research Oriented Paper” in the Journal of Water Resources Planning and Management for 1987. Gregory J. White:is an associate professor of naval architecture at the U.S. Naval Academy. He received his B.S. degree in engineering mechanics from Vanderbilt University in 1975 an M.E. degree in naval architecture from the University of California Berkeley in 1981 and a Ph.D. in civil engineering (structures) from the University of Maryland in 1986. Dr. White served on active duty with the U.S. Navy from 1975 to 1979 as a junior officer in the engineering and operations departments of Pacific Fleet destroyers. Prior to coming to the Naval Academy he worked at Mare Island Naval Shipyard in the scientific code and in the R&D division of Exxon International Company's Tanker Department. Dr. White is a lieutenant commande

A methodology for the structural life assessment of a ship's structure is suggested. The methodology is based on probabilistic analysis using reliability concepts and the statistics of extremes. In this approach, the estimation of structural life expectancy is based on selected failure modes. All possible failure modes of the ship must be investigated and the most likely paths to structural failure identified. For the purpose of illustration two failure modes are considered in this study. They are plate plastic deformation and fatigue cracking. Structural life based on these two failure modes is determined for an example vessel. The methodology determines the probability of failure of the ship's structural components according to the identified failure modes as a function of time. The results can be interpreted as the cumulative probability distribution function (CdF) of structural life. due to the unknown level of statistical correlation between failure modes, limits or bounds on the CdF of the structural life are established. The limits correspond to the extreme cases of fully correlated and independent failure modes. The CdFs of structural life are determined for two inspection strategies; namely, inspection every year and inspection every two years with a warranty inspection at the end of the first year. The meaning of the results for the case investigated in this study is that, for example, given an inspection strategy of two years and a desired life of 15 years, there is a 72% chance that the vessel will not experience enough partial damage‘ in the failure modes identified to constitute reaching the “end of structural life” as defined.

关键词： Ships

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Commentary

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Bulletin of the Atomic Scientists 1982年第4期38卷 45-55页

作者： Lakoff, Sanford A. reddy, Amulya Kumar N. Williams, robert O'Brien, John N. Speed, roger d. Anderson, J. Edward Wolfe, James r. Jackson, Terry W. Yang, richard H. Lin, Herbert University of California La Jolla San Diego92093 United States Department of Inorganic and Physical Chemistry Indian Institute of Science Bangalore560 012 United States Center for Energy and Environmental Studies Princeton University PrincetonNJ08540 United States Technical Support Organization for Nuclear Safeguards Brookhaven National Laboratory UptonNY11973 United States R&D Associates Marina del ReyCA90291 United States University of Minnesota Minneapolis55455 United States Ponca City OK74603 United States Conflict Simulation Systems San FranciscoCA94101 United States East Asian Language and Area Center Washington University St. LouisMO63130 United States Physics Department University of Washington SeattleWA98195 United States

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THE SHIPBOArd FACILITIES MAINTENANCE dEMONSTrATION STUdY

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Naval Engineers Journal 1978年第2期90卷 91-102页

作者： SCHWArTZ, MELVIN A. COrdEr, JAMES L. Mr. Meivin A. Schwartzgraduated from Hunter College in 1959 and received his MS degree in Psychology in 1962 from the City College of New York. He has been a Behavioral Scientist in industry and government since 1960 working on command and control systems and simulations for the Strategic Air Command Job Corps Information Management System Permissive Action Link System Helicopter Attack System Riverine Warfare Systems Manpower Simulation Modeling and Facility Maintenance and Manpower Utilization. He has been employed at the Navy Personnel Research and Development Center formerly the Navy Personnel Research Laboratory since 1967 and has presented papers and participated in numerous international and national symposia. At the present time Mr. Schwartz is the principal investigator of the Facilities Maintenance Demonstration Study being conducted at David W. Taylor Naval Ship Research and Development Center. Mr. James L. Cordergraduated from the U. S. Naval Academy in 1958 and received his MS degree in Engineering Science in 1964 from The George Washington University. He served aboard a Destroyer and instructed in the Engineering Department U. S. Naval Academy until 1964. Since then he has been employed at the David W. Taylor Naval Ship Research and Development Center where he was the Program Manager for the Shipboard Manning and Automation Program until September 1977 and currently is assigned to DTNSRDC Annapolis Md. Mr. Corder who received a Letter of Commendation from the Assistant Secretary of the Navy (R&D) for his work performed while assigned on temporary additional duty at the Navy Research and Development Unit Vietnam in 1968 has been a member of ASNE since February 1965.

Facilities Maintenance (FM), as currently performed by shipboard personnel, requires a considerable expenditure of man—hours and material resources and is not performed efficiently nor effectively. Potential solutions to underlying problems were studied on portions of an operational ship of the FF 1052 Class. The study indicated that: 1) a significant reduction in man—hour expenditure and cost to the Navy is feasible through a systematic innovation program, 2) skill and knowledge of FM Team personnel is improved, and 3) shipboard spaces are cleaner and better maintained with FM innovations. The next phase of the project includes the total ship, and it is planned to commence in July 1978 aboard FF 1052, FFG 7, and LST 1179 Class ships. © 1978 American Society of Naval Engineers

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