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2023 China Automation Congress, CAC 2023

作者： Bai-Shun, Zhang Si-Le, Ma Xiang-Yuan, Jiang Navy Submarine Academy Control Theory and Control Engineering Qingdao266199 China Shandong University Control Theory and Control Engineering Jinan266199 China

ISBN: (纸本)9798350303759

In order to improve the packaging efficiency and quality of package yarn, design and realize the fully automatic package yarn packaging production line and its control system, and realize the automatic control of the whole package yarn packaging process, HMI on-site monitoring and centralized monitoring of the host computer. Improving the automation level of enterprises. According to the process flow of package yarn packaging in the enterprise and the modular design idea, the packaging production line is decomposed into package turnover, single yarn packaging shrinkage, buffer type alignment, woven bag packaging, automatic sewing and turning, automatic bundling, online weighing and labeling;the control management system based on Siemens S7-1200PLC, KTP1200 touch screen and remote host computer is designed, combined with PROFIBUS module and input and output module, the on-site monitoring of the running status of the production line is realized through the touch screen. The remote host computer is built to realize remote monitoring and management of the production line. It has been proved by operation that the automatic bobbin packaging production line runs stably and realizes local and remote control management. Compared with traditional manual packaging or low-level automation equipment, it has the advantages of strong stability and flexible configuration of system modules. Improve the packaging efficiency and automation level of spinning enterprises. © 2023 IEEE.

关键词： Yarn

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Design of Automatic Bobbin Packaging Production Line and control System

Design of Automatic Bobbin Packaging Production Line and Con...

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Chinese Automation Congress (CAC)

作者： Zhang Bai-shun Ma Si-le Jiang Xiang-yuan Navy Submarine Academy Control theory and control engineering Qingdao China Control theory and control engineering Shandong University Jinan China

In order to improve the packaging efficiency and quality of package yarn, design and realize the fully automatic package yarn packaging production line and its control system, and realize the automatic control of the whole package yarn packaging process, HMI on-site monitoring and centralized monitoring of the host computer. Improving the automation level of enterprises. According to the process flow of package yarn packaging in the enterprise and the modular design idea, the packaging production line is decomposed into package turnover, single yarn packaging shrinkage, buffer type alignment, woven bag packaging, automatic sewing and turning, automatic bundling, online weighing and labeling; the control management system based on Siemens S7-1200PLC, KTP1200 touch screen and remote host computer is designed, combined with PROFIBUS module and input and output module, the on-site monitoring of the running status of the production line is realized through the touch screen. The remote host computer is built to realize remote monitoring and management of the production line. It has been proved by operation that the automatic bobbin packaging production line runs stably and realizes local and remote control management. Compared with traditional manual packaging or low-level automation equipment, it has the advantages of strong stability and flexible configuration of system modules. Improve the packaging efficiency and automation level of spinning enterprises.

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Vibration Characteristics of Slotless Rotating Armature Permanent Magnet Motors

Vibration Characteristics of Slotless Rotating Armature Perm...

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2022 International Conference on Electrical Machines, ICEM 2022

作者： Yang, Zhanlu Wang, Shanming Tsinghua University State Key Laboratory of Control and Simulation of Power System and Generation Equipment Department of Electrical Engineering Beijing100084 China Navy Submarine Academy Qingdao266100 China

ISBN: (数字)9781665414326

ISBN: (纸本)9781665414326

For the rotating armature permanent magnet motor (RAPMM), the rotor slot move relating to the stator, which causes the variation of electromagnetic excitation force and the slot-frequency vibration. In order to reduce the slot-frequency vibration of RAPMM, a slotless rotating armature permanent magnet motor (SRAPMM) is proposed and prototyped. The magnetic field, torque, and torque ripple are simulated by finite element method, which shows that the air gap flux density and the radial force keep nearly constant. Vibration experiments were carried out on two SRAPMMs with different magnetic pole widths. The results show that when the motor is no-loaded, the frequency of the main vibration is even times of the current frequency. After the motor is loaded, the amplitude of the electromagnetic vibration is significantly smaller than that caused by mechanical reasons, indicating that the SRAPMM is a good alternative in the application of strict requirements for vibration. © 2022 IEEE.

关键词： Permanent magnets

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Experimental investigation of a five-spring vibration isolator

Experimental investigation of a five-spring vibration isolat...

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2020 International Conference on Physics, Mechanics and Mathematical Science, PMMS 2020

作者： Liu, Shuyong Su, Pan Yang, Lihua Feng, Xuejiao Liu, Haisong College of Power Engineering Naval University of Engineering Wuhan China Power Control Department Navy Submarine Academy Qingdao China Hubei Communication Technical College Wuhan China Military Representative Office of Navy Armament Department in Ningbo Ningbo China

In order to suppress low frequency vibration more effectively, a quasi-zero stiffness vibration isolation device is designed by using five parallel linear springs. The stiffness characteristic of the system is analyzed, and the quasi-zero stiffness (QZS) condition of the system is given. The dynamic behavior analysis of the system is analyzed by harmonic balance method, and the force transmissibility is obtained. The effects of damping ratio and excitation force on the system transfer rate are analyzed. In order to verify the vibration isolation performance of QZS vibration system, a series of experiments were carried out. The experimental results show that the low frequency vibration isolation performance of the QZS vibration system is much better than that of the corresponding linear system. © Published under licence by IOP Publishing Ltd.

关键词： Linear systems

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A clustering-based user reputation evaluation approach for web service recommendation 4

A clustering-based user reputation evaluation approach for w...

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4th International Conference on Fuzzy Systems and Data Mining, FSDM 2018

作者： Su, Kai Su, Xiaoguang Yang, Lihua Xiao, Bin Department of Management Engineering and Equipment Economics Naval University of Engineering Wuhan430033 China Power Control Department Navy Submarine Academy Qingdao266199 China

ISBN: (纸本)9781614999270

In web service recommender systems, users are always asked to provide their observed QoS data to assist the personalized QoS prediction for other users. Most existed approaches assume that all the users will provide real data to the system, however the dishonest users may be appeared in many recommender systems. Attracted by commercial benefit, some users may intentionally provide unfair feedback inconsistent with their real experience, which will harm to the robustness of service recommender system. In this paper, we propose a clustering-based reputation evaluation approach to identify the dishonest users. Firstly, we calculate the trustworthy cluster on each service by Clustering of users’ QoS feedback. Then the feedback of users will be classified according to their deviation degree from the trustworthy cluster. Finally, according to the users’ statistic feedback information, we apply Beta reputation model to evaluate users’ reputation dynamically. Experimental results demonstrate that this approach can accurately evaluate users’ reputaion compared to other state-of-the-art approaches. © 2018 The authors and IOS Press. All rights reserved.

关键词： Feedback

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Unfair web service QoS feedback filtering for service recommendation 4

Unfair web service QoS feedback filtering for service recomm...

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4th International Conference on Fuzzy Systems and Data Mining, FSDM 2018

作者： Xiao, Bin Su, Kai Su, Xiaoguang Yang, Lihua Department of Management Engineering and Equipment Economics Naval University of Engineering Wuhan430033 China Power Control Department Navy Submarine Academy Qingdao266199 China

ISBN: (纸本)9781614999270

In order to recommend the best web service to users, the QoS feedback information provided by advisors are always needed to predict the QoS of candidate services. Attracted by commercial benefit, some advisors may intentionally provide unfair feedback inconsistent with their real experience, which will cause the deviation of prediction results. To attack this problem, an unfair QoS feedback filtering algorithm based on beta reputation model is proposed in this paper. Firstly, several certified center users are obtained to initialize the trustworthy users set. Further, we evaluate the deviation between the target user’s feedback and the average value of trustworthy users set. Finally, each user’s reputation is calculated based on how many deviated feedback he has submitted. The users whose reputation exceed the trustworthy threshold will be recognized as trustworthy users. After several iterations, a majority of unfair users are filtered out. Experimental results demonstrate that our approach can accurately filter out the unfair users and improve the robustness of QoS prediction algorithms against unfair feedback attacks. © 2018 The authors and IOS Press. All rights reserved.

关键词： Forecasting

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Experimental investigation of a five-spring vibration isolator

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Journal of Physics: Conference Series 2020年第1期1707卷

作者： Shuyong Liu Pan Su Lihua Yang Xuejiao Feng Haisong Liu College of Power Engineering Naval University of Engineering Wuhan China Power Control Department Navy Submarine Academy Qingdao China Hubei Communication Technical College Wuhan China Military Representative Office of Navy Armament Department in Ningbo Ningbo China

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A new tool applied to robot perception by selecting evidence sources

A new tool applied to robot perception by selecting evidence...

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IEEE International Conference on Automation and Logistics

作者： Hong Wen Xinhan Huang Xinde Li Intell. Contr. and Robot. Laboratory Department of Contr. Science and Engineering Huazhong University of Science and Technology Wuhan China Combat and Command Department Navy Submarine of Academy Qingdao China Intell. Control and Robot Laboratory Department of Contr. Science and Engineering Huazhong University of Science and Technology Wuhan China Institute of Intell.t Robot and Intell. Contr School of Automation South-East University Nanjing China

ISBN: (纸本)9781424425020

In this paper, considering the imperfect (incomplete, imprecise, uncertain, inconsistent) information sources in information fusion, To avoid and reduce the influence of the mistaken or misleading information on the final precision of fusion, the ESMS (evidence supporting measure of similarity) filter is designed and added to generalized fusion machine (GFM), and an ESMS function (not unique) to select evidence sources before the multi-sources information entering into the Fusion Machine is proposed and proved. Due to considering the barycentre of belief masses in four cases respectively, the fusion result becomes more precise. At last, we apply the new tool coupling with the fusion machine based on DSmT and PCR5 to robotpsilas robot perception. It shows a better performance in solving the challenging work with ESMS filter than that without one.

关键词： Information filters Filtering theory Information filtering Robots Distance measurement Sensors Reliability

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NTDS - A PAGE IN NAVAL HISTORY

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NAVAL ENGINEERS JOURNAL 1988年第3期100卷 53-61页

作者： SWENSON, EN MAHINSKE, EB STOUTENBURGH, JS Capt. Erick N. Swenson USNR (Ret.):is a project manager for special projects in the Surface Ship Systems Division Hughes Aircraft Company Fullerton Calif where he has been employed since his retirement from the U.S. Navy in 1975. Originally trained as an electronics technician during WWII in the Captain Eddy program he later received a BS degree in electrical engineering from the University of Rochester Rochester N. Y. in 1950. Subsequent engineering education was received at the University of Pittsburgh Pittsburgh Penn. and the Naval Postgraduate School Monterey Calif. After commissioning he was ordered to duty as the electronics division officer on the USSMissouri(BB-63) and electronics ships superintendent at Hunters Point Naval Shipyard San Francisco Calif. When the design of the Naval Tactical Data System began in the mid-1950s Lt. (j.g.) Swenson was ordered to the Bureau of Ships Navy Department Washington D.C. as the junior engineering duty only officer assigned to the project. From 1962 to 1965 LCdr. Swenson was assigned as the BuShips technical representative on the program at Remington Rand Univac St. Paul Minn. For the next ten years he returned to BuShips/NavSea/NAVSEC as the NTDS project officer. During this time the project expanded considerably foreign military sales were heavily involved and interoperability with other services and countries were established. His final effort on active duty was to instigate the redesign of the previousSpruanceclass destroyers into the newerAdmiral Kiddclass improvement program. He is a registered professional electrical engineer in the State of California listed inWho's Who in the Worldis a life member of ASNE and chairman of the Long Beach/Greater LA Section. Capt. Edmund B. Mahinske USN (Ret.):is an alumnus of the U.S. Naval Academy the Massachusetts Institute of Technology and the Harvard Business School. His technical background is in electronics and he specialized in the management of programs involving the application of comp

A little over thirty years ago, a group of naval engineers were assembled by the Bureau of Ships to develop a new system approach to the combat information center (CIC). The CIC of World War II, with its “grease pencil” plots and voice telling of tactical information from sensors and other ships, could no longer provide the timely, coordinated reaction to postwar threats. This project group led the navy into the new world of large-scale, high-speed digital electronics and into a new mode of conducting naval warfare as well. There were no off-the-shelf computers of the requisite capability, size and reliability; what were available were monstrous vacuum tube computers. There were no display equipments that were “conversant” in both the digital language of the computer and the analog language of the sensors and the weapon systems. Who ever heard, at that time, of a computer running a tactical communication net automatically? It was hard enough to find sufficient numbers of engineers who knew what a digital computer was. This paper, by three naval engineers in the implementing engineering office, depicts the evolvement of the Naval Tactical Data Systems (NTDS) as they saw it. It discusses the problems that stemmed from the transition from the old world of analog into the new digital world, the system concepts that steered the development; the key decisions that were made; new electronic equipment and processes that became necessary; and the need of the mangagement to face the real world of deadlines, ship schedules and operational requirements.

关键词： NAVAL WARFARE

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RELIABILITY-BASED FATIGUE DESIGN FOR SHIP STRUCTURES

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NAVAL ENGINEERS JOURNAL 1987年第3期99卷 135-149页

作者： WHITE, GJ AYYUB, BM Gregory J. White: LCdr. USNR-R is an assistant professor of naval architecture at the U.S. Naval Academy. He received a 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. from the University of Maryland in 1986. Dr. White served on active duty with the U.S. Navy from 1975 to 1979 first as the damage control assistant aboard the USS Reasoner (FF-1063) and then as the commissioning CIC officer aboard the USS Merrill (DD-976). After leaving active duty and while attending graduate school he worked at Mare Island Naval Shipyard in the scientific section (Code 250.1). Upon completion of graduate school he then worked for Exxon International Company as a research engineer in the R & D division of the tanker department. A lieutenant commander in the Ready Reserve Dr. White drills with the repair department of a submarine tender reserve unit and recently completed the reserve engineering duty officer qualification program. A member of ASNE since 1983 Dr. White is also a member of SNAME and the U.S. Naval Institute Dr. White received the “Jimmie” Hamilton Award for 1985. Bilal M. Ayyub:is currently an assistant 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. While there he was awarded the Kuwait Foundation for the Advancement of Science Fellowship. Dr. Ayyub has extensive background in risk-based analysis and design simulation pre-stressed composite steel girders and construction engineering. He is engaged in research work involving structural reliability bridges marine structures mathematical modelling using the theories of probability statistics and fuzzy sets. His research work is sponsored by the National Transportation Safety Board the University of Maryland the Natio

In the continuing effort to apply reliability methods to marine structures, the next logical step is to include these techniques in the design process. The advantage of doing this would be the ability to design more efficient structures with some measure of certainty of the reliability level involved. The particular application in ship structural design which would benefit the most from using reliability methods is the design against fatigue failure. In this paper, some of the reliability-based methods currently being used (or proposed for use) in the design of structures against fatigue are examined. Each is evaluated as to its suitability for use in the structural design of ships. In addition, the authors propose a new reliability-based fatigue design format which is based on their recently introduced Reliability-Conditioned (RC) design method and the Load and Resistance Factor Design (LRFD) code format. This approach is hoped to provide the design engineer with an easy to understand and use tool based on the LRFD format. The RC method will enable him to quickly and accurately design the components of a ship's structure such that a desired level of safety against fatigue is achieved. Each of the methods discussed is used to solve a practical example. The results of that example and several others are used to discuss the relative merits of each method.

关键词： SHIPS

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