2018 Dynamics of Systems, Mechanisms and Machines (Dynamics)最新文献

Updates of View in Relational Databases* 关系数据库视图的更新*

2018 Dynamics of Systems, Mechanisms and Machines (Dynamics) Pub Date : 2018-11-01 DOI: 10.1109/DYNAMICS.2018.8601495

S. Zykin, V. Zykin

引用次数: 0

Mathematical Modeling of the Linear Drive for Research Viscoelastic Properties of Elastomer 弹性体粘弹性研究中线性传动的数学建模

2018 Dynamics of Systems, Mechanisms and Machines (Dynamics) Pub Date : 2018-11-01 DOI: 10.25206/2310-9793-2018-6-3-96-102

Andrey Tatevosyan, V. Kovalev

{"title":"Mathematical Modeling of the Linear Drive for Research Viscoelastic Properties of Elastomer","authors":"Andrey Tatevosyan, V. Kovalev","doi":"10.25206/2310-9793-2018-6-3-96-102","DOIUrl":"https://doi.org/10.25206/2310-9793-2018-6-3-96-102","url":null,"abstract":"The article is devoted to solving the problem of mathematical and simulation modeling of linear magnetoelectric drive (LMED) for the research of rheological characteristics of elastomers. A special feature of the linear drive is lack of transmitting and convertive elements between the anchor, which is a clamping rod, and a test sample of the elastomer, what makes it necessary to include equations describing nonlinear viscosity processes in the General model of the LMED when solving the modeling problem. The possibility of using multi-circuit equivalent circuits, which can be synthesized on the basis of experimental data obtained for the test sample of a certain brand of elastomer under its loading to fixed values of the relative strain, is shown. As a result of the relaxation process of the test sample of the elastomer, the exponential time dependence of the mechanical stress is investigated, which can be subsequently represented by the sum of the exponents with different time constants. The analogy in the recording of the time dependence of the mechanical voltage and current in the electrical circuit containing RC-elements, as well as fixed deformation and constant voltage of the power supply makes it possible to establish a correspondence between the specified values and to create an equivalent circuit of substitution of the test sample of the elastomer. The number of parallel branches of the substitution scheme, as well as its parameters can be determined on the basis of an experiment to remove the time dependence of the mechanical stress at a fixed value of the relative strain. The article also presents a General mathematical model and its implementation in the software MATLAB/Simulink","PeriodicalId":394567,"journal":{"name":"2018 Dynamics of Systems, Mechanisms and Machines (Dynamics)","volume":"184 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120901273","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}

引用次数: 3

Detection of Extended Objects in Conditions of a Priori Uncertainty About the Parameters of Movement on the Background of Non-Gaussian Noise 非高斯噪声背景下运动参数先验不确定性条件下扩展目标的检测

2018 Dynamics of Systems, Mechanisms and Machines (Dynamics) Pub Date : 2018-11-01 DOI: 10.1109/DYNAMICS.2018.8601463

V. M. Artyushenko, V. I. Volovach

引用次数: 0

Registration of Discrete Signals Based on the Soft Computing Concept 基于软计算概念的离散信号配准

2018 Dynamics of Systems, Mechanisms and Machines (Dynamics) Pub Date : 2018-11-01 DOI: 10.1109/DYNAMICS.2018.8601419

E. D. Bychkov, Dmitriy S. Luzan, D. V. Belenkov

引用次数: 0

Dynamics 2018 [Last page] Dynamics 2018[最后一页]

2018 Dynamics of Systems, Mechanisms and Machines (Dynamics) Pub Date : 2018-11-01 DOI: 10.1109/dynamics.2018.8601481

引用次数: 0

Approaches to solving the problem of risk assessment with fuzzy initial information 模糊初始信息下风险评估问题的解决方法

2018 Dynamics of Systems, Mechanisms and Machines (Dynamics) Pub Date : 2018-11-01 DOI: 10.1109/DYNAMICS.2018.8601485

H. Primova, D. Sotvoldiev, L. Safarova

引用次数: 3

Estimation of Probability of Error on Degree Telegraph Distortion 程度电报失真误差概率的估计

2018 Dynamics of Systems, Mechanisms and Machines (Dynamics) Pub Date : 2018-11-01 DOI: 10.1109/DYNAMICS.2018.8601497

A. Kosykh, V. Khazan

{"title":"Estimation of Probability of Error on Degree Telegraph Distortion","authors":"A. Kosykh, V. Khazan","doi":"10.1109/DYNAMICS.2018.8601497","DOIUrl":"https://doi.org/10.1109/DYNAMICS.2018.8601497","url":null,"abstract":"Discrete messages transmitted over the radio channels are distorted under the influence of various kinds of additive and multiplicative interferences, this being the reason for errors on the receiver-side of the radio line. Error probability in the received message characterizes the communication channel quality at a definite period of time required for the radio line adaptation to the communication conditions. An immediate estimation of the error probability requires a lot of time, which in many cases exceeds the communication channel stationary interval and makes it impossible to provide operational adaptation of the radio line to the continuously changing communication conditions. The error probability and the value of telegraph (end) distortions in the received discrete message are known to be determined by the ratio of the received signal power and noise, which cannot be estimated directly, since both of these components are found in the communication channel simultaneously. Estimation of the degree of telegraph distortions takes less time compared to the time of error probability estimation. Therefore it is practical to assess error probability in the communication channel indirectly, estimating the degree of telegraph distortions at a limited interval of time in the sliding window, which is less than the interval of stationary state of the communication channel. The paper describes a specific version of the technical (software) implementation of the device for measuring the degree of telegraph distortions. The findings of the study can be used in the design of devices for radio line adaptation to communication conditions.","PeriodicalId":394567,"journal":{"name":"2018 Dynamics of Systems, Mechanisms and Machines (Dynamics)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131335451","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}

引用次数: 1

Contact Problem for Electro-Magneto-Elastic Half-Space with Initial Deformations 具有初始变形的电磁弹性半空间接触问题

2018 Dynamics of Systems, Mechanisms and Machines (Dynamics) Pub Date : 2018-11-01 DOI: 10.1109/DYNAMICS.2018.8601458

M. O. Levi

引用次数: 5

Frequency Responses of Wind Turbines with Magnetic Speed Reduction in Autonomous Power Systems 自主电力系统中磁力减速风力发电机的频率响应

2018 Dynamics of Systems, Mechanisms and Machines (Dynamics) Pub Date : 2018-11-01 DOI: 10.1109/DYNAMICS.2018.8601504

S. N. Udalov, A. Achitaev, V. A. Marchenko

{"title":"Frequency Responses of Wind Turbines with Magnetic Speed Reduction in Autonomous Power Systems","authors":"S. N. Udalov, A. Achitaev, V. A. Marchenko","doi":"10.1109/DYNAMICS.2018.8601504","DOIUrl":"https://doi.org/10.1109/DYNAMICS.2018.8601504","url":null,"abstract":"The present paper is devoted to investigations of the influence of the initial response of wind energy and its importance for system reliability. This problem is especially relevant for autonomous power systems with wind turbines. The energy stored in rotating masses of wind turbines and inertial wind energy contribute to the power system inertia. It was found that the decrease of system inertia in the case of higher levels of renewable generation does not have a significant influence on frequency responses in comparison with the regulator action. Wind turbines contribute to the inertial and primary frequency response during the frequency drop in the power system. However, the fast support for the changing frequency with the controlled inertia of wind energy will facilitate the return of the frequency to the normal operating range that allows avoiding load disconnection at low frequencies in the system. The paper also presents comparative characteristics of frequency responses for a wind turbine with a magnetic gearbox and a mechanical gearbox. The aim of the study is to analyze and give a quantitative estimation for frequency responses of wind power plants having various technologies of turbines and transmissions, namely variable-speed of wind wheel rotation, magnetic speed reduction and a synchronous generator with permanent magnets.","PeriodicalId":394567,"journal":{"name":"2018 Dynamics of Systems, Mechanisms and Machines (Dynamics)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128377950","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}

引用次数: 1

The Fast Interpolation Transformation and the Sampling Theorem on the Basis of Bordering Functions for Recording the Wave Signals of Mechanical and Other Physical Fields 基于边界函数的快速插值变换和采样定理记录机械和其他物理场的波动信号

2018 Dynamics of Systems, Mechanisms and Machines (Dynamics) Pub Date : 2018-11-01 DOI: 10.1109/DYNAMICS.2018.8601483

A. Sedov

引用次数: 0