2016 Dynamics of Systems, Mechanisms and Machines (Dynamics)最新文献

{"title":"Tracking mode implementation features for the synchrophase electric drive","authors":"A. V. Bubnov, A. N. Chudinov, V. A. Emashov","doi":"10.1109/DYNAMICS.2016.7818990","DOIUrl":"https://doi.org/10.1109/DYNAMICS.2016.7818990","url":null,"abstract":"The actual synchrophase electric drive (SPED) control methods are built with a number of assumptions. Therefore the methods are full of flaws. The known time quasioptimal control method is based on the acceleration constancy assumption. It makes the phasing process inaccurate. Additional phasing process is needed. Phase plane method, control theory, electrical machines theory is used in the work. The new phasing method for the SPED is proposed. The method is based on the accurate measurement of the angular velocity mismatch. It allows to improve the control process quality characteristics.","PeriodicalId":293543,"journal":{"name":"2016 Dynamics of Systems, Mechanisms and Machines (Dynamics)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121488618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Information security risks assessment in telecommunication network of the university","authors":"I. Anikin","doi":"10.1109/DYNAMICS.2016.7818967","DOIUrl":"https://doi.org/10.1109/DYNAMICS.2016.7818967","url":null,"abstract":"We use the method based on expert judgments and analytic hierarchy process for information security risks assessment in a typical telecommunication network of the university. We evaluate impacts and possibility values for specific threats at the telecommunication network. We also identify some security vulnerabilities and evaluate them. We use such methods and tools as fuzzy logic, questionnaires, analytic hierarchy process, fuzzy prediction rules for risk factors evaluation.","PeriodicalId":293543,"journal":{"name":"2016 Dynamics of Systems, Mechanisms and Machines (Dynamics)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123800426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Substantiation of application of the developed device for measurement of geometrical characteristics of parts in the course of processing on grinding operations","authors":"A. V. Tignibidin, V. N. Ivanov","doi":"10.1109/DYNAMICS.2016.7819098","DOIUrl":"https://doi.org/10.1109/DYNAMICS.2016.7819098","url":null,"abstract":"To increase the productivity of manufacture of parts and reduce the number of reject it is necessary to automate the process of monitoring directly in the processing of parts, especially in finishing operations. For this purpose machines are modernized by system for real-time measuring. The analysis of existing systems revealed potential of development of the instrument making, allowing to reduce cost of processing of a unit of production and a measurement uncertainty, to increase flexibility of change-over to a new type of processing work pieces even with a intermittent surface on retention of the maximum values of productivity in the course of processing on grinding machines. The objective of this research is the substantiation of joint application of grinding machines and the developed system for real-time measuring of geometrical characteristics of the parts, based on a new constructive principle, with maintenance of accuracy of measurement no more than 1…2 microns, fast change over for other size and possibilities of measurement of parts with a intermittent surface. The system for real-time measuring is developed on the basis of minimization on the created model of influence of the revealed possible components of a total processing and measurement uncertainty of parts. Economic feasibility of application of the new system for real-time measuring taking into account effect from reduction of time of grinding operation and effect from decrease in percent of reject rate is proved. The substantiation is made on an example of processing of a kit of parts of several names. High technological level and economic feasibility of results of the researches, appeal to practical implementation in manufacture of the created system for real-time measuring is proved. The research materials can be used as a substantiation of introduction in manufacture of carried out system for real-time measuring, and as for the further scientific perfection of processes of automation of control of geometrical characteristics of products in the processing of grinding operations in machine-building manufacture.","PeriodicalId":293543,"journal":{"name":"2016 Dynamics of Systems, Mechanisms and Machines (Dynamics)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123227725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The calculation of the magnetic field of the synchronous magnetoelectric generator","authors":"A. Tatevosyan","doi":"10.1109/DYNAMICS.2016.7819095","DOIUrl":"https://doi.org/10.1109/DYNAMICS.2016.7819095","url":null,"abstract":"The paper considers the solving of the applied task of developing electric machines, particularly, designing of brushless synchronous magneto-electric machine. The need in electric machines, where the electromagnetic field excitation occurs because of using hard permanent magnets, is growing constantly which follows the creation of modern permanent magnets on the basis of neodymium alloys (NdFeB) having high energy response. However, for the generator operational mode the considered type of machines has a disadvantage being highly intense armature reaction, which leads to the rough external response. The main purpose of this paper is to introduce the structure of magneto-electric machine, which provides increasing armature reaction in a generator mode and increase electromotive force (EMF) in windings and, consequently, improving overall machine performance in general. The approaches to the development of magneto-electric machines with U-shaped layer magnetic core with electromagnetic field excitation from permanent magnets located on the machine rotor are considered.","PeriodicalId":293543,"journal":{"name":"2016 Dynamics of Systems, Mechanisms and Machines (Dynamics)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121077079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Determination of the electromagnetic parameters of submersible electric motors of electric centrifugal pumps installations","authors":"Y. Kuznetsov, V. V. Anikin","doi":"10.1109/DYNAMICS.2016.7819033","DOIUrl":"https://doi.org/10.1109/DYNAMICS.2016.7819033","url":null,"abstract":"The article provides a method for the determination of electromagnetic parameters of asynchronous submersible electric motors (SEM) on the damping curve of the constant current recorded from a stationary rotor. The method is suitable for using both as in terms of electro-repair shops as directly on the surface of the multiple well platforms. The method has perspective of using in operation of SEM at landed depth of the well as part of electrical submersible pump units (ESP). The experimental results generally show a sufficient degree of adequacy of the method for determining the electromagnetic parameters of physical processes in asynchronous electric motors.","PeriodicalId":293543,"journal":{"name":"2016 Dynamics of Systems, Mechanisms and Machines (Dynamics)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121134711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of the dynamics of electric drive in fault modes of two- and three-level inverters","authors":"A. Pugachev","doi":"10.1109/DYNAMICS.2016.7819067","DOIUrl":"https://doi.org/10.1109/DYNAMICS.2016.7819067","url":null,"abstract":"The short list of requirements to the traction electric drive has to satisfy is highlighted. The topologies and operation principles of two- and three-level voltage source inverters fed a traction induction motor are presented. The brief survey of the frequency converters faults and malfunctions is carried out. The transient modes of electric drives under transistor short-circuit fault and transistor gate drive open-circuit fault in both two- and three-level voltage source inverters are considered. The results of simulation in Matlab are presented for the electric drive with 14 kW induction motor and scalar control system. The transistor gate drive open-circuit fault is shown not to have significant differences for the inverter topologies to be considered. The transistor short-circuit fault in three-level inverter is shown to have less negative impact on the semiconductor devices, induction motor stator winding and mechanical units of drive.","PeriodicalId":293543,"journal":{"name":"2016 Dynamics of Systems, Mechanisms and Machines (Dynamics)","volume":"8 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126100479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Model of system quality assessment pronouncing phonemes","authors":"E. Kostyuchenko, D. Ignatieva, R. Mescheryakov, A. Pyatkov, E. Choynzonov, L. Balatskaya","doi":"10.1109/DYNAMICS.2016.7819016","DOIUrl":"https://doi.org/10.1109/DYNAMICS.2016.7819016","url":null,"abstract":"In view of the urgency of the problem of cancer diseases of the vocal apparatus and their treatment by surgery relevance of speech rehabilitation of patients is increased. This article describes the phoneme pronunciation quality assessment system, its inputs, outputs and internal parameters. Presented a mathematical model of the system, a functional model of the system in the form of contextual diagrams and decomposition of the 1st level of IDEF0 diagram. Also presented an algorithm of phoneme assessment in comparison with a certain set of reference phoneme. Was proved the accuracy and adequacy of the proposed system in comparison with expert judgment.","PeriodicalId":293543,"journal":{"name":"2016 Dynamics of Systems, Mechanisms and Machines (Dynamics)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126473850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Weber problem for rectangles on lines with forbidden gaps","authors":"G. Zabudsky, N. Veremchuk","doi":"10.1109/DYNAMICS.2016.7819109","DOIUrl":"https://doi.org/10.1109/DYNAMICS.2016.7819109","url":null,"abstract":"The location problem of interconnected facilities on the parallel lines with forbidden gaps is considered. Location in forbidden gaps is not allowed. The located facilities are connected among themselves and with gaps. The rectangular metric is used. It is need to minimize the total cost of connections between facilities and between facilities and gaps. The problem is an adequate model of many practical applications from various fields of science and engineering. The mathematical model of nonlinear programming of the problem is proposed. The overview of decision's methods and the properties of the problem are provided. The decision's scheme for one line and the algorithm of an approximate solution of the problem for several lines are proposed.","PeriodicalId":293543,"journal":{"name":"2016 Dynamics of Systems, Mechanisms and Machines (Dynamics)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125278897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Role-based access control model as applied to object-oriented applications","authors":"P. Oleynik","doi":"10.1109/DYNAMICS.2016.7819056","DOIUrl":"https://doi.org/10.1109/DYNAMICS.2016.7819056","url":null,"abstract":"The article presents an overview of modern approaches to setting up of security and allocation of user access rights in applications of different architecture and the author's approach to allocation of rights to classes, class attributes and objects, complying with specific criteria. It is achieved with the use of hierarchy of classes, the composition and structure of which are described in detail herein. Concluding part of the article contains description of already developed applications, in which the author employed the model.","PeriodicalId":293543,"journal":{"name":"2016 Dynamics of Systems, Mechanisms and Machines (Dynamics)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121662293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental researches of temperature dependences of Brillouin backscatter spectrum in optical fibers of various types","authors":"I. Bogachkov","doi":"10.1109/DYNAMICS.2016.7818987","DOIUrl":"https://doi.org/10.1109/DYNAMICS.2016.7818987","url":null,"abstract":"The results of experimental researches of the temperature influence on characteristics of the Brillouin backscatter spectrum and the strain of the single-mode optical fibers of different types are presented in this work. The reflectogrames and graphic dependences for the next types of optical fibers: G.652, G.653, G.655 and G.657, which were obtained during the experimental research are shown. As a result of Brillouin backscatter spectrum temperature dependence was built for different types of optical fibers. Linear dependence of the Brillouin frequency shift and the respective temperature characteristics of the strain was observed for all types of fibers. Analysis of the experiments results showed that the temperature dependence of the Brillouin frequency shift and strain of the dispersion-shifted (G.653) and non-zero dispersion-shifted (G.655) fibers significantly shifted down relative to the dependencies for the usual fiber (G.652). Characteristics of fiber G.657 and G.652 are slightly different.","PeriodicalId":293543,"journal":{"name":"2016 Dynamics of Systems, Mechanisms and Machines (Dynamics)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114360333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}