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Hui Deng, Zhihong Zhang, Wenbin Yi and Weixue Xia
A ship advancing in restricted waters may cause a change in the surrounding velocity field, which in turn results in the hydrodynamic pressure field according to the variations in the ship speed. Accurate prediction of ship hydrodynamic pressure fields i...
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Mikhail Koroteev, Ekaterina Romanova, Dmitriy Korovin, Vasiliy Shevtsov, Vadim Feklin, Petr Nikitin, Sergey Makrushin and Konstantin V. Bublikov
The problem evaluated in this study is related to the optimization of a budget of an industrial enterprise using simulation methods of the production process. Our goal is to offer a universal and straightforward methodology for simulating a production bu...
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Yu. M. Hermaniuk
Pág. 26 - 31
The article describes the basic problems of organization of international transit transportations. A statistical analysis of wagon delays at border stations has been done. Also some conclusions on the necessity of developing a mathematical model of pushi...
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Boris Melnikov,Tatyana Zubova
Pág. 9 - 15
The paper proposes an approach to the formulation of optimization tasks designed to model the organization?s management of value guidelines. In our approach, the development of a conceptual scheme presupposes: the formation of a list of values and their ...
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S. Yu. Buryak
Pág. 172 - 175
The method of mathematical modeling of switch eclectic drive in the system MATLAB + Simulink is presented.
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V. S. Andrieiev,O. L. Tiutkin,T. O. Selikhova
Pág. 183 - 187
The article considers the issues of mathematical modelling of behaviour the outside-of-the-centre loaded basements, resting on multi-layer beds. It has been shown that application of the finite elements method forcalculation of such basements allows to g...
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M. S. Ivanova,S. V. Konoval,S. F. Abed
Pág. 150 - 159
Purpose. This article is devoted to research of soil in complex engineering and geological conditions, as well as ways to improve the stability of the stacked bases structurally unstable soils. The relevance of this work lies in the solution of grounds s...
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T. Astakhova,S. Krivonogov,A. Romanov
Pág. 17 - 25
In the current conditions of the development of the information society, the problem of the formation of high-quality decision-making among the proposed alternatives is one of the priorities, due to the fact that this area of human activity is due to a s...
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Olena Akhiiezer, Olha Dunaievska, Mykhailo Shyshkin, Olha Butova, Anton Rohovyi
Pág. 5 - 15
The subject matter is a mathematical model describing the process of heart rhythm variability, which is based on the use of triangular models of non-stationary random processes in the Hilbert space. The goal of the research is to develop a mathematical m...
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Victor Shapovalov, Alexandr Permyakov, Alexander Klochko
Pág. 118 - 126
The subject matter of the research in the article is the process of restoring the quality and accuracy of the working surface of the wheelsets of the main electric locomotives, electric sections. The purpose of the work is to develop a modeling method fo...
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A.V. Sokolov,V.V. Voloshinov
Pág. 33 - 41
Mathematical model selection method on the basis of a balance between the complexity and the experimental data fitting accuracy is proposed. The method is based on: 1) a set of (parametric) families of models suitable for satisfactory reproduction of mea...
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Sergey Gorshkov,Eugene Ilyushin,Anastasia Chernysheva,Viacheslav Goiko,Dmitry Namiot
Pág. 12 - 17
Topic modeling is one of the most widely used methods in text analysis. It can be used to select topics as well as to find the topics distributed in each document from the corpus. In this article, we present a method for clustering co...
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Zhao Zhang and Junsheng Ren
This paper explores a fast and efficient method for identifying and modeling ship maneuvering motion, and conducts a comprehensive experiment. Through the ship maneuvering test, the dynamics interaction between ship and the environment is obtained. Then,...
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Igor Bychkov, Alexander Kazakov, Anna Lempert and Maxim Zharkov
Among the micro-logistic transport systems, railway stations should be highlighted, such as one of the most important transport infrastructure elements. The efficiency of the transport industry as a whole depends on the quality of their operation. Such s...
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Feiyan Min, Guoliang Pan and Xuefeng Xu
The hydrodynamic characteristics of multi-propeller autonomous underwater vehicles (AUV) is usually complicated and it is difficult to obtain an accurate mathematical model. A modeling method based on CFD calculation and maximum likelihood identification...
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Peng-Hao Hu, Ze-Xun Lu, Yuan-Qi Zhang, Shan-Lin Liu and Xue-Ming Dang
The rotation orientation and the angle of precision of an intelligent ball joint cannot be automatically obtained in passive motion. In this paper, a new method based on a Hall sensor with a permanent magnet (PM) is proposed to identify the spatial rotat...
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Yalin Dai, Zhouwei Fan, Jian Xu, You He and Xiongqing Yu
A special feature of airbreathing hypersonic aircraft is the complex coupling between aerodynamic and propulsive performances. This study presents a rapid analysis methodology for the integration of these two critical aspects in the conceptual design of ...
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Xueyang Zeng, Gang Chen, Huabo Shi, Sijia Wang and Peng Shi
Aiming at the problem of ultra-low-frequency oscillation (ULFO) in power systems, with an oscillation frequency lower than 0.1 Hz, an oscillation suppression control method is proposed. Firstly, the mathematical modeling of the system is carried out, and...
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Yu Zhang and Dongqin Li
A novel float-type device for wave energy power generation, designed specifically for offshore wave environments, is introduced as an innovative technology in wave energy utilization. Herein, we present the design concept, structural composition, and ene...
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