?
Computationally effective mathematical model of airplane flight
Russian Aeronautics. 2016. Vol. 59. No. 3. P. 344–350.
Kudryavtsev D. Y., Aminev D., Sviridov A. S.
An approach to modeling is proposed, where the airplane is considered as a system with a minimal set of basic material points, and its mathematical description is given. We construct the mathematical model of the conventional airplane with an adequate accuracy for evaluation calculations in creating the control system. The flight simulation software for the Yak-52 and NG-4 airplanes is developed in MATLAB and the modeling results are analyzed.
Manohin A., Polesskiy S., САПР электроники 2023 № 3(3) С. 93–103
An experimental study of the aerodynamic parameters of the Climacontrol M-70/100-120 KTH heat and cold chamber is being conducted. A 3D model is created to calculate the heat and cold chamber in SOLIDWORKS, aerodynamic modeling of SW Flow Simulation is carried out, experimental and calculated data are compared, conclusions are drawn and the applicability of ...
Added: April 10, 2024
M.: Steklov Mathematical Institute, 2022.
This collection of articles contains materials of the talks presented at the International Conference dedicated to the centenary of the birth of Academician Evgenii Frolovich Mishchenko, Moscow, June 7–9, 2022 ...
Added: January 31, 2023
Zelenyi L. M., Malova H. V., Grigorenko E. E. et al., JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 2022 Vol. 127 No. 11 Article e2022JA030881
Thin current sheets (TCSs) are the key structures in space and laboratory plasmas responsible for the accumulation and subsequent release of the stored magnetic energy. Spacecraft measurements in the near Earth's space revealed the complicated multilayer TCSs structure consisting from extremely thin and strong electron current embedded inside the thicker ion current layer. In this ...
Added: November 9, 2022
Shabarov V., Peplin F., Kalyasov P. et al., Applied Ocean Research 2022 Vol. 120 Article 103045
• The mathematical formulation allowing to determine stability characteristics of the lift system of the Air Cushion Vehicle fitted with Inflated Side Seals was
developed.
• The analytical stability condition was derived from the simplified mathematical model. In particular case of rigid hulls the analytical criterion coincides
with the known stability condition for SES.
• The developed models were ...
Added: September 1, 2022
Sviatoslav Iakimenko, Tsislav A., Naumova E. et al., Telecommunications and Radio Engineering (США) 2022 Vol. 81 No. 3 P. 51–61
Bluetooth 5.1 is a new technology with a sample of novel features. One of the most significant improvements compared to the previous version is in the enhancement of indoor localization with techniques such as angle of departure (AoD) and angle of arrival (AoA). Up to date, only a modest number of limited practical studies were ...
Added: August 10, 2022
Tikhonov E., Sneps-Sneppe M., International Journal of Open Information Technologies 2019 Vol. 7 No. 3 P. 17–24
The article describes one of the powerful tools for the signals analysis while transmission – complex mathematics. Here the basic concepts (complex numbers, complex signal as expansion of a real signal to a complex-valued function) and some operations (exponentiation, absolute value and angular phase representation) are introduced.
As an example complex mathematical methods are used for ...
Added: April 9, 2022
Tikhonov E., Sneps-Sneppe M., International Journal of Open Information Technologies 2019 Vol. 7 No. 4 P. 53–60
The article introduces powerful common tool for the signals analysis – basics of a spectral analysis.
It focuses on decomposition into complex sine waves (harmonic sinusoids) called the Fourier transform.
Based on qualitative review of the natural phenomenon of visible light (that is the electromagnetic field oscillation in a working range of the eyes) decomposition into a ...
Added: April 9, 2022
Tikhonov E., Sneps-Sneppe M., International Journal of Open Information Technologies 2019 Vol. 7 No. 7 P. 13–26
The article introduces the theoretical foundations of the modern method of storing, transmitting and processing signals: digital processing. It’s a way to use relatively small number of values instead of continuous real signal.
For example, when transmitting information in telephony, speech is concentrated in the bandwidth up to 4 kHz. But we need doubled frequency 8 ...
Added: April 9, 2022
Tikhonov E., Sneps-Sneppe M., International Journal of Open Information Technologies 2020 Vol. 8 No. 6 P. 51–42
Data transmission using orthogonal functions means combining base carrier signals (scaled by numbers of useful information) into one sent signal. Processing the mixed signal after receiving allows dividing it back into carriers and restoring useful numbers.
What is the most compact set of complex sine waves for this? How will the random components of the spectrum ...
Added: April 9, 2022
Semenenko M. G., Kniazeva I. V., Beckel L. S. et al., , in: IOP Conference Series: Materials Science and Engineering, Volume 537, Issue 3Vol. 537. Issue 3.: Institute of Physics Publishing (IOP), 2019.
Added: October 20, 2021
Evgeniy V. Runev, Rusanova E. V., CEUR-WS.org, 2020.
Proceedings of the Workshop "Models and Methods for Researching Information Systems in Transport 2020" on the basis of the departments "Information and Computer Systems" and "Higher Mathematics" Emperor Alexander I St. Petersburg State Transport University. ...
Added: April 17, 2021
Букин Е. К., Bukina T. V., Приборы и системы. Управление, контроль, диагностика 2020 № 6 С. 7–16
The issue of road safety is a key one today. The Russian National Project "Safe and Quality Roads" envisages the introduction of new technical requirements and standards for road construction based on digital technologies and the introduction of automated and robotic technologies for road traffic management.
This work proposes the development of an automated software system ...
Added: October 19, 2020
Kozaev A., Saleh H., Alexandrov D., , in: Actual Problems of Systems and Software Engineering APSSE 2019 (Invited Papers).: Los Alamitos, Washington, Tokyo: IEEE Computer Society, 2019. P. 63–68.
The article is dedicated to implementation and evaluation of a model for simulation of emergency situations on main gas pipeline. Data produced by model was compared to data obtained from real emergency situations on main gas pipeline. Result of this work is the model built using MATLAB Simulink software that can be used for datasets ...
Added: October 9, 2020
Lisienkova L. N., Savenkova I., Baranova E. V., , in: IOP CONFERENCE SERIES: MATERIALS SCIENCE AND ENGINEERING Workshop on Materials and Engineering in Aeronautics (MEA2018) Том. 313. 2018 Workshop on Materials and Engineering in Aeronautics (MEA2018)Vol. 313.: IOP Publishing, 2019. P. 1–7.
The paper discloses the method for estimating the deformation of fibroreticulate materials under the conditions of spatial multiaxial cyclic tension. The relevance of the method application for estimating the reliability performance of materials used for upholstering and finishing the interior of aircraft cabins has been justified. The equations of the elastic state of flexible fibroreticulate ...
Added: November 9, 2018
Max press, 2018.
This collection of articles contain materials of the talks presented at the International Conference "Systems Analysis: Modeling and Control" in memory of Academician A.V. Kryazhimskiy, Moscow, May 31 - June 1, 2018 ...
Added: June 18, 2018
Kofanov Y. N., Sotnikova S., , in: Proceedings of the 2017 International Conference "Quality Management, Transport and Information Security, Information Technologies" (IT&QM&IS).: IEEE, 2017. P. 215–218.
Virtual simulation method is developed in the work. It based on virtual 3D-models of the structures of on-board electronic means designs with superimposed heterogeneous fields of electrical, thermal, mechanical and other processes caused by united impacts of external factors. A distinctive feature of this method is the account of the close relationship of the flowing ...
Added: January 5, 2018
Zontov Y., Rodionova O. Y., Kucheryavskiy S. V. et al., Chemometrics and Intelligent Laboratory Systems 2017 Vol. 167 P. 23–28
Soft independent modeling of class analogy (SIMCA) is one of the OCC methods widely used in chemometrics. The original version, proposed by S. Wold, has numerous modifications mostly related to the way of constructing the acceptance boundaries. Recently, authors proposed the data driven version of SIMCA (DD-SIMCA), which allows to calculate the errors of misclassification ...
Added: June 29, 2017
Golov N., Rönnbäck L., Computer Standards and Interfaces 2017 Vol. 54 No. P2 P. 86–93
High performance querying and ad-hoc querying are commonly viewed as mutually exclusive goals in massively parallel processing databases. Furthermore, there is a contradiction between ease of extending the data model and ease of analysis. The modern 'Data Lake' approach, promises extreme ease of adding new data to a data model, however it is prone to ...
Added: March 13, 2017
Golov N., Rönnbäck L., Advances in Conceptual Modeling 2015 No. 9382 of the series Lecture Notes in Computer Science P. 154–163
High performance querying and ad-hoc querying are commonly viewed as mutually exclusive goals in massively parallel processing databases. In the one extreme, a database can be set up to provide the results of a single known query so that the use of available of resources are maximized and response time minimized, but at the cost of ...
Added: December 22, 2016
N.N.Grachev, Lazarev D. V., , in: 2016 International Siberian Conference on Control and Communications (SIBCON). Proceedings.: M.: HSE, 2016. P. 1–5.
Ways to improve the sensitivity and signal-to-noise ratio of primary converters in each case have their fundamental and practical limitations. To determine the optimal frequency of the electromechanical conversion and ensure the specified accuracy and stability of metrological characteristics are encouraged to use the method of probabilistic stability studies of the output characteristic of the ...
Added: September 29, 2016
Zontov Y., Rodionova O. Y., Pomerantsev A. L., , in: Abstracts of the Tenth Winter Symposium on Chemometrics (WSC-10).: Samara: -, 2016.
Added: March 11, 2016
Kapalin V. I., Ведяшкина Наталья Евгеньевна, Промышленные АСУ и контроллеры 2015 № 6 С. 41–47
A simple technique for the design of P and PI-regulators for nonlinear control systems, which is based on the theory of minimax
approximations, is proposed. Unlike the widely known methods of harmonic and statistic linearization, the minimax linearization method used in the present paper does not require special suppositions concerning the input signal of the nonlinear ...
Added: November 29, 2015