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Mathematical modeling in problems about dynamics and stability of elastic elements of wing profiles 翼型弹性元件动力学与稳定性问题的数学建模
Cybernetics and Physics Pub Date : 2021-11-30 DOI: 10.35470/2226-4116-2021-10-3-201-212
P. A. Velmisov, A. Ankilov
{"title":"Mathematical modeling in problems about dynamics and stability of elastic elements of wing profiles","authors":"P. A. Velmisov, A. Ankilov","doi":"10.35470/2226-4116-2021-10-3-201-212","DOIUrl":"https://doi.org/10.35470/2226-4116-2021-10-3-201-212","url":null,"abstract":"The mathematical models describing the dynamics of elastic elements of wing structures and representing the initial-boundary value problems for systems of partial differential equations are proposed. The dynamics and stability of elastic elements of wings, flown around by a gas or liquid stream in a model of an incompressible medium, are investigated. To study the dynamics of elastic elements and a gas-liquid medium, both linear and nonlinear models of the mechanics of a solid deformable body and linear models of the mechanics of liquid and gas are used. On the basis of the constructed functionals for partial differential equations, the sufficient stability conditions are obtained in analytical form. The conditions impose restrictions on the parameters of mechanical systems. The obtained stability conditions are necessary for solving the problems of controlling the parameters of the aeroelastic system. On the basis of the Galerkin method, a numerical study of the dynamics of elastic elements was carried out, the reliability of which is confirmed by the obtained analytical results.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43323472","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: 0
Modeling the control processes of the size population of microorganisms using modulated microwave 利用调制微波模拟微生物数量的控制过程
Cybernetics and Physics Pub Date : 2021-11-30 DOI: 10.35470/2226-4116-2021-10-3-155-161
A. Oshchepkov
{"title":"Modeling the control processes of the size population of microorganisms using modulated microwave","authors":"A. Oshchepkov","doi":"10.35470/2226-4116-2021-10-3-155-161","DOIUrl":"https://doi.org/10.35470/2226-4116-2021-10-3-155-161","url":null,"abstract":"The paper describes a mathematical model of a control system for the size population of microorganisms using modulated microwave radiation of non-thermal power.The model is implemented in the dynamic environment MATLAB+Simulink, the areas of optimal values of the impact parameters are found. An algorithm for automatic tuning of the modulation frequency during the experiment has been developed.The efficiency of the algorithmis shown with the help of computer simulation.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46083923","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: 0
Control of global variables for identical and non-identical Josephson junctions arrays 相同和非相同Josephson连接阵列的全局变量控制
Cybernetics and Physics Pub Date : 2021-11-30 DOI: 10.35470/2226-4116-2021-10-3-138-142
N. Litvinov
{"title":"Control of global variables for identical and non-identical Josephson junctions arrays","authors":"N. Litvinov","doi":"10.35470/2226-4116-2021-10-3-138-142","DOIUrl":"https://doi.org/10.35470/2226-4116-2021-10-3-138-142","url":null,"abstract":"In the paper a way to solve an LQ-problem for a Josephson junction array with a common LRC-load is proposed. The cases of identical and non-identical Josephson junctions are considered. The solution ensures phase stabilization of Josephson current in every junction. The results are obtained using computer simulation in Jupyter Notebook and MATLAB.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41798991","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: 0
Dynamic control of intermittent renewableenergy fluctuations in two-layer power grids 双层电网间歇性可再生能源波动的动态控制
Cybernetics and Physics Pub Date : 2021-11-29 DOI: 10.35470/2226-4116-2021-10-3-143-154
S. Olmi, Carl H. Totz, E. Scholl
{"title":"Dynamic control of intermittent renewableenergy fluctuations in two-layer power grids","authors":"S. Olmi, Carl H. Totz, E. Scholl","doi":"10.35470/2226-4116-2021-10-3-143-154","DOIUrl":"https://doi.org/10.35470/2226-4116-2021-10-3-143-154","url":null,"abstract":"In this work we model the dynamics of power grids in terms of a two-layer network, and use the Italian high voltage power grid as a proof-of-principle example. The first layer in our model represents the power grid consisting of generators and consumers, while the second layer represents a dynamic communication network that serves as a controller of the first layer. The dynamics of the power grid is modelled by the Kuramoto model with inertia, while the communication layer provides a control signal Pc i for each generator to improve frequency synchronization within the power grid. We propose different realizations of the communication layer topology and of the control signal, and test the control performances in presence of generators with stochastic power output. When using a control topology that allows all generators to exchange information, we find that a control scheme aimed to minimize the frequency difference between adjacent nodes operates very efficiently even against the worst scenarios with the strongest perturbations. On the other hand, for a control topology where the generators possess the same communication links as in the power grid layer, a control scheme aimed at restoring the synchronization frequency in the neighborhood of the controlled node turns out to be more efficient.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45006604","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: 0
Artwork style transfer model using deep learning approach 使用深度学习方法的美术风格迁移模型
Cybernetics and Physics Pub Date : 2021-10-30 DOI: 10.35470/2226-4116-2021-10-3-127-137
Ngo Le Huy Hien, Luu Van Huy, Hieu Nguyen Van
{"title":"Artwork style transfer model using deep learning approach","authors":"Ngo Le Huy Hien, Luu Van Huy, Hieu Nguyen Van","doi":"10.35470/2226-4116-2021-10-3-127-137","DOIUrl":"https://doi.org/10.35470/2226-4116-2021-10-3-127-137","url":null,"abstract":"Art in general and fine arts, in particular, play a significant role in human life, entertaining and dispelling stress and motivating their creativeness in specific ways. Many well-known artists have left a rich treasure of paintings for humanity, preserving their exquisite talent and creativity through unique artistic styles. In recent years, a technique called ’style transfer’ allows computers to apply famous artistic styles into the style of a picture or photograph while retaining the shape of the image, creating superior visual experiences. The basic model of that process, named ’Neural Style Transfer,’ has been introduced promisingly by Leon A. Gatys; however, it contains several limitations on output quality and implementation time, making it challenging to apply in practice. Based on that basic model, an image transform network was proposed in this paper to generate higher-quality artwork and higher abilities to perform on a larger image amount. The proposed model significantly shortened the execution time and can be implemented in a real-time application, providing promising results and performance. The outcomes are auspicious and can be used as a referenced model in color grading or semantic image segmentation, and future research focuses on improving its applications.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41881638","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: 5
Preface. Special issue dedicated to the memory of prof. Iliya Blekhman 前言纪念伊利亚·布莱赫曼教授特刊
Cybernetics and Physics Pub Date : 2021-10-01 DOI: 10.35470/2226-4116-2021-10-2-56-57
Alexander L. Fradkov, D. Indeitsev
{"title":"Preface. Special issue dedicated to the memory of prof. Iliya Blekhman","authors":"Alexander L. Fradkov, D. Indeitsev","doi":"10.35470/2226-4116-2021-10-2-56-57","DOIUrl":"https://doi.org/10.35470/2226-4116-2021-10-2-56-57","url":null,"abstract":"","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47920319","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: 0
Linaccalc: software for accelerating structure characteristics simulation based on equivalent circuit method Linaccalc:基于等效电路法的加速结构特性仿真软件
Cybernetics and Physics Pub Date : 2021-06-30 DOI: 10.35470/2226-4116-2021-10-1-22-26
S. Matsievskiy, V. I. Kaminskii, A. A. Gorchakov, M. Lalayan, M. Gusarova, N. Sobenin
{"title":"Linaccalc: software for accelerating structure characteristics simulation based on equivalent circuit method","authors":"S. Matsievskiy, V. I. Kaminskii, A. A. Gorchakov, M. Lalayan, M. Gusarova, N. Sobenin","doi":"10.35470/2226-4116-2021-10-1-22-26","DOIUrl":"https://doi.org/10.35470/2226-4116-2021-10-1-22-26","url":null,"abstract":"Nowadays design of accelerating structures is almost exclusively done using 2.5D and 3D codes based on finite elements method. Equivalent circuit method is frequently considered limited and inconvenient to use in real-life projects. However, low resource requirements make this method attractive for wide range sweep calculations.This paper describes LinacCalc application — a user friendly accelerating structure simulation software based on the equivalent circuit method. It allows calculating characteristics of the accelerating sections with large number of cells in short time on machines with moderate amount of computational power. Core application modules are validated by comparing calculation results with ones obtained by a conventional finite element method based programs.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42381802","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: 0
A hybrid regularizers model for multiplicative noise removal 一种用于乘性噪声去除的混合正则化子模型
Cybernetics and Physics Pub Date : 2021-06-30 DOI: 10.35470/2226-4116-2021-10-1-40-50
T. T. T. Tran, C. Pham, D. Vo, Duc-Hoang Vo
{"title":"A hybrid regularizers model for multiplicative noise removal","authors":"T. T. T. Tran, C. Pham, D. Vo, Duc-Hoang Vo","doi":"10.35470/2226-4116-2021-10-1-40-50","DOIUrl":"https://doi.org/10.35470/2226-4116-2021-10-1-40-50","url":null,"abstract":"In this paper, we propose a variational method for restoring images corrupted by multiplicative noise. Computationally, we employ the alternating minimization method to solve our minimization problem. We also study the existence and uniqueness of the proposed problem. Finally, experimental results are provided to demonstrate the superiority of our proposed hybrid model and algorithm for image denoising in comparison with state-of-the-art methods.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43301066","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: 2
A nonlinear optimal control approach for the UAV and suspended payload system 一种无人机与有效载荷系统的非线性最优控制方法
Cybernetics and Physics Pub Date : 2021-06-30 DOI: 10.35470/2226-4116-2021-10-1-27-39
G. Rigatos
{"title":"A nonlinear optimal control approach for the UAV and suspended payload system","authors":"G. Rigatos","doi":"10.35470/2226-4116-2021-10-1-27-39","DOIUrl":"https://doi.org/10.35470/2226-4116-2021-10-1-27-39","url":null,"abstract":"The article proposes a nonlinear optimal control approach for the UAV and suspended load system. The dynamic model of the UAV and payload system undergoes approximate linearization with the use of Taylor series expansion around a temporary operating point which recomputed at each iteration of the control method. For the approximately linearized model an H-infinity feedback controller is designed. The linearization procedure relies on the computation of the Jacobian matrices of the state-space model of the system. The proposed control method stands for the solution of the optimal control problem for the nonlinear and multivariable dynamics of the UAV and payload system, under model uncertainties and external perturbations. For the computation of the controller’s feedback gains an algebraic Riccati equation is solved at each time-step of the control method. The new nonlinear optimal control approach achieves fast and accurate tracking for all state variables of the UAV and payload system, under moderate variations of the control inputs. The stability properties of the control scheme are proven through Lyapunov analysis.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43711790","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
Nonlinear robust control of large-scale system with input saturation 输入饱和大系统的非线性鲁棒控制
Cybernetics and Physics Pub Date : 2021-06-30 DOI: 10.35470/2226-4116-2021-10-1-13-21
E. L. Eremin, L. V. Nikiforova, E. A. Shelenok
{"title":"Nonlinear robust control of large-scale system with input saturation","authors":"E. L. Eremin, L. V. Nikiforova, E. A. Shelenok","doi":"10.35470/2226-4116-2021-10-1-13-21","DOIUrl":"https://doi.org/10.35470/2226-4116-2021-10-1-13-21","url":null,"abstract":"The article studies control algorithms of multiply connected system for dynamic plants with control saturation and nonlinear cross-connections. The authors of the article offer a decentralized control law based on the hyperstability criterion. They also use this law to constuct the MIMO servo system with input saturation. To illustrate the capability of the proposed decentralized robust control system the authors use an inverted pendulums connected by a spring.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48734758","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: 0
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